yamaha ypg 625 replacement lcd screen manufacturer
My screen went blank on both halves. I followed the instructions kindly provided by Zerald (see Nov. 20, 2017) A big thank you to him as it completely fixed the issue. I used a PowerFist soldering station from Princess Auto (Canada) set at 150 F (the minimum setting) to reset the glue. If you run the flat blade over the flex tape cable where it attaches to the circuit board before turning on the heat, you will feel the ridges in the flex cable. After turning on the heat to the soldering tip, I repeatedly passed over the flex tape where it joins the metal and the whole part behind where it is glued to the board (about 1/4 inch). Make sure to do both pieces of flex tape cable as each one is the data supply for either side of the screen. I powered it up after each successive try and saw the screen steadily improve from no image when I started to fully functional after three applications of heat and pressure. The final result was the flex tape cable had no ridges, the glue appears to be reset, and the screen is once again fully functioning. Other than purchasing the soldering station ($30.00 CDN) there was no other costs. I own two Yamaha guitars and two Yamaha keyboards but will never buy another Yamaha product due to their companies" lack of accountability to an obvious product flaw. I was quoted about $300.00 to have their local service company replace the screen! Appears it doesn"t need to be replaced.
What I did was undo all the necessary screws on the back to separate the control section from the keys. This gives you access to the display board and its two brown ribbon cables. pressing / rubbing them while the unit was turned on made a further mess of the screen and confirmed this was the problem.
SOLUTION);.. turn machine off INTERMITTENTLY 30 min on .... place a Makeba quartz crystal on the screen( with 4 small magnets on to top) on the portion of the screen that is blank;...in the middle of the screen if totally blank...leave on on overnight...repeat and vary. ..{ USE YOUr imagination)>... turning the machine on and off to check results..stop placing crystal when screen activates
I just found this page but I"ve had the same issue with mine for a few years. I"d love to know a solution. The keyboard plays but the screen is a mess. Half of it works. The other half does not.
It happened to my YPG-625 too. One day after turning it on I got half a screen. The problem was resolved by turning the keyboard off then turning the contrast knob all the way up (located on the front input panel). Then turning the keyboard back on and re-adjusting the contrast level. That got it back to display the full screen.
Hi, I have a big problem with my Yamaha ypg-635. I bought it in 2009 and I have not had any problems, now 2017 - 2018, when I return to my school and I tried to turn it on I can see that the control screen turns on completely but when I want to play the keys, I do not get any sound at all , I raise the volume and there is no sound. I tried with the headphones or with an amplifier and there is no sound either, but very soft in the background you hear a faint buzz soud.
The problem is in poor contact in-between LCD’s PCB and flex cables that comes to the LCD panel(two cables). It seems that Yamaha(or who manufactured this LCD assy – I do not know) uses some kind of anisotropic conductive film(instead of solder or connector) to connect those two flex cables to the PCB.
I have a Ypg-535 and seem to be having the same issue as everyone, but instead my screen is completely gone. I have only used the keyboard a total of about 8 hours in the past year, due to being busy with school work, and am wondering if this issue is possibly caused by underusage. I am wondering if there is any solution to this problem without having to buy a completely new keyboard.
Screen has been malfunctioning for years. Used to be just half gone. Now it"s fully gone. I"ve checked the contrast. My main question is will a 25$ 320 x 240 dots LCD display (backlit) not from yamaha work or do I have have to get the 113$ or more replacement screen specifically for yamaha? ctiwari2@ yahoo.com 812-361-8798
I am having a similar problem that seems to be epidemic, when adjusting the contract control the fixed half goes bad and the bad part goes good! There are replacement screens on aliexpress but man given the amount of people out there with this problem Yamaha should be held accountable.. very disappointing.
I have the same problem. However, I"m a total cheap skate and don"t want to part with $150 to buy a new screen. So, instead I attemtped to take the DGX620/YPG625 keyboard apart hoping I could get the display working without buying a new part.
Once I got the keyboard apart I pulled the screen out and plugged it back into the main board except now I had the screen facing me while the keyboard was open. Once the screen was facing me I plugged in the AC power. This way I was able to play around with the cables while seeing if the display problem got any better.
Results: I managed to find a sweet spot where the cable would recieve a good signal and the display problem disappeared completely. However, once all put back together and after playing the keys for a few minutes the display problem came back. Clearly a new LCD should not be necessary and I will attempt to take apart my keyboard again this time cleaning all display connections as well as the end of the display cable.
many yamaha key boards have this issue very early after.so please give me a solution for this issue.also i like to propose to yamaha corporation if you can include vedio out jack for every arranger key boards its very helpfull.
i have a yamaha 625 ypg keyboard i opened it up to find that there is something on the contacts of the ribbon cable thats making the contacts not work because i test the cable with a multimeter and for some reason the contacts go bad !but can any body help me get a new ribbon cable my lcd screen works i just need to replace a cable .the one with the black flat peace on it! it seems to be the problem ! my name is greg swinney i can be reached at gswinney1@ yahoo.com thanks!!!!
This should be cover by Yamaha company, poor design and poor quality. 3 years ago - during performance - piano quit. After few hrs, piano works fine. After 4 months this same problem. Purchased new transformer, but didn"t help.
Just noticed it last night. I"ll work the fix but will probably heavily de-weight Yamaha for my next keyboard purchase given how common this issue is.
I have this same problem as many others with my YPG screen going half blank! This is totally unacceptable. I"ve had my Roland D-5 for 40+ years and the screen is still the same as it was when it was purchased. Yamaha should really do something about this. This screen is defective, bottom line!
Exact same problem! Just fixed it tonight with a new lcd. Attempted to clean all the connectors first with contact cleaner and q tips. No better. Should have tried replacing the horribly double-crimped ribbon cable, but didn"t want to go out again and have a show I need this for, so I just threw in the new LCD screen. 100 bucks and two weeks to ship but it works.
Yes, I agree JamieRI! I"m absolutely shore about this problem, and first just try to cleaning the contacts! My Yamaha DGX620 had the same problem but cleaning all contacts I fix it, and now the display is full, optimal working. :)
2) Clean flex tail contacts: If it has vertical streaks or half is blank, the LCD display is quite possibly good but contacts on the flex tail fingers are tarnished, producing poor contact at the connector. (I have not done this yet, so leave comments on your success)
I enjoyed my Yamaha piano but will never buy another one or recomend. The LCD screen only shows half screen. This seems to be a common problem. Very disappointed.
"However, I did find, when removing the old part, that the LCD main ribbon cable was folded (crimped) twice by the manufacturer to better align the wire with it"s connector on the main circuit board. I was told, in my training, never to crimp these wires.
However, I did find, when removing the old part, that the LCD main ribbon cable was folded (crimped) twice by the manufacturer to better align the wire with it"s connector on the main circuit board. I was told, in my training, never to crimp these wires.
I had purchased a Yamaha PSR I455 and it also has the display problem even after one month. I think the quality of the product is very low due to China manufacturing. Also they charge more on Indian customers. If you compare the same version in USA costs only 18K instead of 25.5K here in India.
I am so glad I came upon this site and saw the picture. It is the same problem that I am having right now with mine. I will not take it apart myself over the fear of it breaking the piano and the folk"s around here in my neck of the woods are not so helpful in fixing it for me. I was told to, "Get rid of it and buy a newer one." Yeah, I really wish money grew on tree"s too." So the story with mine as possible causes are: Has been moved around a bit, never dropped. Played everyday and in OHIO. Weather such as heat/cold could be a issue to any electronic device. So would Yamaha send a tech to my house for free to fix it or is this something that"s going to cost me?
I have a YPG-625. I suggest calling an authorized dealer is seeing how much they will charge you to replace you malfunctioning LCD with a new one. They get a bigger discount from Yamaha and it may actually be cheaper. If you want to do it yourself follow the below understanding I am not a qualified service tech just a do-it-yourselfer. There are a total of 114 screws (you will want to power screw driver fully charged) and 2 solder connections (you will need a soldering Iron and solder).
11. Remove the Soldered power wires from the LCD. To do this, look at the connector on the board were this wire connects. The top part of this plastice white connector lifts up slightly (don"t pull to hard) then you can easily pull the wire out).
13. Solder this wire onto the NEW LCD. Make sure you connect the correct wire to + and the other to -. (See YouTube to solder correctly if you don"t know)
Note: The manual is the correct one for your model. The Yamaha DGX-630 and YPG-635 are one and the same model, at least as far as the manual is concerned. Here’s an image from the 1st page of the manual.
The image shown in the link is for the LCD unit which is compatible with your model. The Yamaha part number is WN7448800 (see Parts List, Part #320) and the supplier linked above was only to show what it looked like and the cost. Also it shows that it is no longer available and you would need to contact either them or Yamaha for alternatives.
My respect! this is the truth, My repair lasted a few month and finally I changed the screen module to a new one, it"s cheap in aliexpress. I can see some improvement and so far so good, 3 years already.0
Awesome instructions. After taking out all the screws and the board, I didn"t think it was going to work because the connections on the LCD board looked perfect. But I followed the instructions exactly anyway. I have zero experience with repairing electronics but the instructions were so good that I fixed it on the first try. I especially appreciated the detail of setting the screwdriver torque to 1 so as not to strip the casing when putting it all back together. Thanks!
Great advice. Thanks! Looking to buy one of these very cheap (because - you guessed it - screen problem!). Before I attempt to fix/replace... is it possible to play as regular piano WITHOUT screen function? My daughter needs a nice keyboard for piano practice... Hate to pass this one up!
Yes, you can catch the offer, the overall quality and durability are ok, as it made by YAMAHA, sound quality is decent if the internal speaker still original, or you can just connect to an externally powered speaker system. one thing I feel the keys are little noisy compared to a Casio, the strike sound, maybe the shock absorber is getting old.... Mine one is about 7 years stationary use. Hope this help.1
Thanks for the advice on the anisotropic conductive film cable. My DGX620 LCD was down to half screen and I wanted to avoid the cost of replacement, when it was clearly only a connection issue.
A wide variety of screen lcd yamaha options are available to you, You can also choose from original manufacturer, odm screen lcd yamaha,As well as from tft, fstn/cstn screen lcd yamaha.
Display Screen for Yamaha MM6, MM8, PSR-S550, YPG-535 LCD. Display Screen for Yamaha MM6, MM8, PSR-S550, YPG-535 LCD > Full tested before shipping. About Shipping 1)We only accept PayPal ,and payment by Via, Master Card & Amex via PayPal is acceptable. 2) Orders processed timely after the payment verification. Your item will be shipped within 3 business days of payment. we only ship according to the shipping address, please verify your shipping address carefully before checkout, since it can not be changed after orders placed. 3) Usually, orders will be shipped via China Post Air mail. And actual delivery time may vary and can not be controlled by seller. Customs clearance in some countries may take unexpected longer time. We highly recommend international buyer to use Expedited Shipping (DHL or EMS) which is more reliable. 4) As an international buyer, buyers are responsible for all additional customs fees, brokerage fees, duties, and taxes for importation into your country. These additional fees may be collected at time of delivery. Our price dose not include any import taxes, VAT, or other hidden customs charges.About feedback If you have any questions about our products or services, in this case, please do not give us negative feedback directly, Please give us the opportunity , please talk to us, we will do our best to solve your problem and provide you with the best customer service. Your satisfaction is always our No.1 priority! Please do not leave negative feedback without contacting us. Thank you in advance!NOTICE: Installation guide not included, please be sure you know how to install before order.
The piano is the older brother of the Yamaha YPG-235 (76 keys), which is basically the same keyboard but has 1 octave fewer keys and hence a more compact case and a more affordable price.
Being a part of Yamaha’s “Portable Grand” line, the YPG-535 promises a portable design, a variety of piano-centric features and realistic “Grand piano” sound.
The keyboard is a great choice for someone who lives in a small apartment or in a dorm room where there is not much space. With that said, I wouldn’t call the YPG-535 super portable.
The YPG-535 is a popular choice to gig with. So if you plan to move the keyboard around a lot, you’d probably want a more portable X-type stand, which can be quickly detached from the keyboard (no screwdrivers required) and easily transported.
If you feel the full-size keyboard (88 keys) is too bulky, you may want to consider the Yamaha YPG-235, which has very similar to the YPG-535 functionality but 1 octave fewer keys (76 keys).
The control panel seems a bit overwhelming at first with more than 40 buttons and other control elements. There is a dedicated button for almost every function and setting available on the YPG-535.
Not only does it make it much easier to navigate the instrument but also allows you to take full advantage of educational features available on the keyboard, such as Music Notation Display and Yamaha Educational Suite.
As for the mechanism, the model features Graded Soft Touch (GST) action keyboard. It’s Yamaha’s most affordable keyboard action, which doesn’t replicate the hammer action found on an acoustic piano.
Still, the YPG-535’s keys tend to be a little bit noisier than its competitors with fully weighted actions, such as Yamaha’s Graded Hammer Standard and Casio’s Tri-sensor Scaled Hammer Action II.
So the YPG-535’s piano sound is the actual sound of an acoustic piano recorded at different volume levels (multi-layering) so that an appropriate sound is triggered according to the force with which a key is struck.
Below you can listen to the keyboard’s Grand Piano sound. It’s actually the YPG-235 (the 76-key version of the YPG-535), but they sound sound the same.
Not just piano, the number of instrument sounds in the YPG-535 is pretty impressive. There are 500 internal sounds available for you to play (127 panel accessible sounds + 12 drum/SFX kits + 361 XGlite additional sounds).
Yamaha YPG-535 comes with a pitch bend wheel, which allows you adjust the pitch of the notes being sounded. Using the pitch bend, you can reproduce various effects, such as guitar vibrato, choking, etc.
And considering the YPG-535 has 500 built-in instrument sounds, it’s just amazing how many new and interesting sound combinations you can create using this mode.
The YPG-535 has 30 internal songs (+70 on CD-ROM), which you can play back, and learn how to play each song using the Lesson Mode and the Performance Assistant feature.
But not just internal songs, there are tons of songs in MIDI (SMF format 0) available on the Internet, which you can download to your computer and then transfer to the YPG-535’s internal memory to use them the same way as internal songs (lessons, performance assistant, etc.)
Lesson 1 is called “Waiting”. The song will wait until you play the right note shown on the display. By the way, you don’t even need to know how to read music, because the display will show you (on the virtual on-screen keyboard) the exact keys you need to play.
The YPG-535 offers 160 different accompaniment styles that will accompany you performance with multiple instruments as if you were playing in a real band or orchestra.
The tuning function will allow you to adjust the pitch in 1-cent steps (100 cents = 1 semitone), which you can use to precisely match the pitch of the YPG-535 to that of another instrument.
The Yamaha YPG-535 comes with 5 ports used to connect the piano to different kinds of external devices. All of them are located on the rear panel of the instrument.
This jack can also be used as a Line Output to connect the YPG-535 to an external amplifier or speakers since the YPG-535 doesn’t have dedicated Line Out jacks.
There is a wide range of music apps and teaching software (e.g. GarageBand, FlowKey, MuseScore, etc.) that will expand the YPG-535’s capabilities in terms of music composing, recording, learning, notation creation and so on.
The keyboard comes with the Yamaha FC5 sustain pedal. It’s a plastic box-like pedal that comes with most of the Yamaha keyboards and unfortunately, doesn’t offer much realism and control (on/off only).
Secondly, the YPG-535 has 32-note polyphony, which is quite limiting, especially for more advanced players who are going to play complex classical pieces, create multi-track recordings consisting of several instrument parts and so on.
It’s hard to ever get bored with the YPG-535, whether you’re a kid or a grandparent, a newbie or a pro. Without any doubts, you get an amazing value for the money.
However, since the YPG-535 has some major drawbacks I mentioned above, you’d probably want to consider some other keyboards in this price range that don’t have such flaws.
And the other 3 keyboards are, the Yamaha P-45, the Casio PX-160 and the Yamaha DGX-660. Compared to the YPG Series Keyboards, these pianos offer much more realistic experience for piano playing.
Compared to its big brother the YPG-235 doesn’t offer the USB to Device port (for connecting a Flash Drive), doesn’t come with a stand and isn’t capableof showing the scores and lyrics of songs due to the smaller display.
Unlike its 88-key brother, the YPG-235 has a compartment for batteries, which makes it much more mobile and allows you to use the keyboard in places where there is no AC power available (outdoors).
I think the YPG-235 would be a perfect choice for those who haven’t yet decided whether they’re serious about music and just want to get a taste of how it’s like to play keyboard without spending too much money yet getting enough features to stay engaged and interested.
It’s equipped with the Graded Hammer Standard action (the same as in the P-115 model) with fully weighted keys, which beats the YPG-535’s spring mechanism.
Of course, it’s hard to compare the P-45’s features to what the YPG-535 offers, but for piano playing, you’d definitely be better off with the P-45 and its hammer action keyboard and 64-note polyphony.
Even though the DGX-660is a few hundred dollars more expensive than the YPG-535, I decided to include it in this list, because it’s somewhat a unique keyboard.
The DGX-660 is also equipped with all kinds of ports and jacks for connecting to external devices. It has all the ports the YPG-535 has, plus the Microphone jack and Audio injack (for playing music from your smart devices through the DGX-660’s speakers).
And just these 3 things set the DGX-660 apart from the YPG-535, making it a very versatile instrument perfect not only for music-making, learning, and entertainment but also for realistic and enjoyable piano playing.
I bought this MIDI electric piano in 2006. $799. legs and case and keys are all great. never used the midi. still have the receipt and booklets and CDs and chords and headphones. It works great except the display screen only lights up halfway. the Db 2 octaves below middle C is stuck. the Keyboard World tech said it is a $225 repair. so for $350 you get an $800 piano. come and get it. see youtube demo video.
/ SERVICE MANUAL DGX-620 YPG-625 CONTENTS SPECIFICATIONS .................................................................... 3 PANEL LAYOUT ........................................................................ 4 CIRCUIT BOARD LAYOUT & WIRING ..................................... 6 BLOCK DIAGRAM .................................................................... 8 DISASSEMBLY PROCEDURE ................................................. 9 LSI PIN DESCRIPTION .......................................................... 20 IC BLOCK DIAGRAM .............................................................. 23 CIRCUIT BOARDS ................................................................. 24 TEST PROGRAM ................................................................... 33 INITIALIZATION ...................................................................... 37 USER DATA BACKUP ............................................................. 38 MIDI IMPLEMENTATION CHART ........................................... 42 MIDI DATA FORMAT ............................................................... 43 PARTS LIST OVERALL CIRCUIT DIAGRAM PK 001760 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF ’06.03
DGX-620/YPG-625 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated. WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor"s Service Division. WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. SAVING DATA Saving and backing up your data The panel settings and some other types of data are not retained in memory when you turn off the power to the instrument. Save data you want to keep to the Registration Memory. Saved data may be lost due to malfunction or incorrect operation. Save important data to a USB storage device/or other external device such as a computer. Be sure to perform it Backing up the USB storage device/external media To protect against data loss through media damage, we recommend that you save your important data onto two USB storage devices/external media. Be sure to perform it 2
DGX-620/YPG-625 ■ SPECIFICATIONS Keyboards Effects • 88 Graded Hammer Standard keys (A-1–C7), with Touch • Reverb: 9 types Response. • Chorus: 4 types Display • Harmony: 26 types • 320 x 240 dots LCD display (backlit) Song Setup • 30 Preset Songs + 5 User Songs + Accessory CD-ROM Songs (70) • STANDBY/ON • Song Clear, Track Clear • MASTER VOLUME: MIN–MAX • Song Volume • LCD CONTRAST • Song Control: REPEAT & LEARN, A-B REPEAT, PAUSE, REW, FF, START/STOP Panel Controls • SONG, VOICE, STYLE, EASY SONG ARRANGER, Performance assistant technology P.A.T. ON/OFF, LESSON L, LESSON R, LESSON START, • Chord, Chord/Free, Melody, Chord/Melody METRONOME ON/OFF, PORTABLE GRAND, DEMO, Recording FUNCTION, MUSIC DATABASE, HARMONY ON/OFF, • Song DUAL ON/OFF, SPLIT ON/OFF, TEMPO/TAP, [0]–[9], [+], User Song: 5 Songs [-], CATEGORY, Dial, REPEAT & LEARN (ACMP ON/OFF), Recording Tracks: 1, 2, 3, 4, 5, STYLE A-B REPEAT (INTRO/ENDING/rit.), PAUSE (SYNC START), START/STOP, REW (MAIN/AUTO FILL), FF (SYNC STOP), MIDI REGIST MEMORY ([MEMORY/BANK], [1], [2]), • Local On/Off • Initial Send • External Clock SONG MEMORY (REC, [1]–[5], [A]), File Control [MENU], • Keyboard Out • Style Out • Song Out File Control [EXECUTE], [EXIT], [LYRICS], [SCORE], [CHORD FINGERING] Auxiliary jacks • PHONES/OUTPUT, DC IN 12V, USB TO HOST, Realtime Control USB TO DEVICE, SUSTAIN • Pitch Bend Wheel Ampli er Voice • 6W + 6W • 127 panel voices + 12 drum/SFX kits + 361 XGlite voices • Polyphony: 32 Speakers • DUAL • 12cm x 2 + 3cm x 2 • SPLIT Power Consumption • 22W Style • 150 Preset Styles + 1 User Style File Power Supply • Style Control: ACMP ON/OFF, SYNC STOP, SYNC START, • Adaptor: Yamaha PA-5D AC power adaptor START/STOP, INTRO/ENDING/rit., MAIN/AUTO FILL Dimensions (W x D x H) • Fingering: Multi Finger, Full Keyboard • 1,398 x 457 x 153 mm (55-1/16" x 18" x 6") • Style Volume • with keyboard stand: 1,405 x 485 x 773 mm (55-1/3" x 19-1/8" x 30-3/8") Music Database • 267 Weight • 18.0kg (39 lbs. 11 oz.) Education Feature • with keyboard stand: • Dictionary 25.5kg (56 lbs. 3 oz.) • Lesson 1–3, Repeat & Learn Supplied Accessories Registration Memory • Music Rest • Accessory CD-ROM • 8 banks x 2 types • Keyboard Stand • Owner’s Manual • Footswitch FC5 Function • AC Power adaptor (May not be included depending on your par- • VOLUME: Style Volume, Song Volume ticular area.) • OVERALL: Tuning, Transpose, Split Point, Touch Sensitiv- ity, Pitch Bend Range, Chord Fingering Optional Accessories • MAIN VOICE: Volume, Octave, Pan, Reverb Level, • Headphones: HPE-150 Chorus Level • DUAL VOICE: Volume, Octave, Pan, Reverb Level, Chorus Level • SPLIT VOICE: Volume, Octave, Pan, Reverb Level, Chorus Level • EFFECT: Reverb Type, Chorus Type, Master EQ Type, Sustain • HARMONY: Harmony Type, Harmony Volume • Performance assistant technology: Performance assistant technology Type • PC: PC Mode • MIDI: Local On/Off, External Clock, Initial Send, Keyboard Out, Style Out, Song Out • METRONOME: Time Signature Numerator, Time Signature Denominator, Metronome Volume • SCORE: Quantize • LESSON: Lesson Track (R), Lesson Track (L), Grade • UTILITY: Demo Cancel, Language 3
DGX-620/YPG-625 ■ PANEL LAYOUT • Front Panel e u i o q r t y !0 w !1 !2 !3 !4 !5 !6 !7 !8 !9 #4 • Front Panel q [STANDBY/ON] switch !4 [REPEAT & LEARN]/ [ACMP ON/OFF] button w [MASTER VOLUME control !5 [A-B REPEAT]/[INTRO/ENDING/rit.] button e FILE CONTROL [MENU], [EXECUTE] button !6 [REW]/[MAIN/AUTO FULL] button r [LYRICS] button !7 [FF]/[SYNC STOP] button t [SCORE] button !8 [PAUSE]/[SYNC START] button y [CHORD FINGERING] button !9 [START/STOP] button u [P.A.T. ON/OFF] button @0 [SONG] button i [MUSIC DATABASE] button @1 [EASY SONG] ARRANGER] button o [FUNCTION] button @2 [STYLE] button !0 LESSON [L],[R], [START] buttons @3 [VOICE] button !1 [METRONOME ON/OFF] button !2 [TEMPO/TAP] button !3 SONG MEMORY [REC], [1]-[5], [A] buttons 4
DGX-620/YPG-625 @0 @7 @1 @4 @6 @2 @3 @5 @8 #0 #1 #2 #3 @9 Rear Panel #5 #6 #7 #8 #9 • Rear Panel @4 Dial #5 CONTRAST knob @5 CATEGORY[ ] and [ ] buttons #6 USB TO DEVICE, TO HOST terminals @6 Number buttons [0]–[9],[+] and [-] buttons #7 SUSTAIN jack @7 [DEMO] button #8 PHONES/OUTPUT jack @8 [EXIT] button #9 DC IN 12V jack @9 REGIST MEMORY [MEMORY/BANK], [1], [2] buttons #0 [PORTABLE GRAND] button #1 [SPLIT ON/OFF] button #2 [DUAL ON/OFF] button #3 [HARMONY ON/OFF] button #4 [PITCH BEND] wheel 5
DGX-620/YPG-625 ■ CIRCUIT BOARDS LAYOUT & WIRING • Upper case Keyboard assembly PB MVR PNL AM LCD unit DM MKO ENC PNR < Bottom view > 15 15 TW (L) Speaker PSW DJACK Speaker TW (R) (Tweeter (L)) 13 10 7 9 8 3 6 1 5 2 4 11 (Tweeter (R)) • Lower case Speaker 12 14 Speaker (Woofer (L)) (Woofer (R)) • Keyboard assembly < Top view > 5 GHL88L GHL88M GHL88H 6
DGX-620/YPG-625 No. Location Part No. Connector Assembly Destination Remarks q -- -- Flexible flat cable DM-CN201 *1 *4 LCD *3 *4 14P w 240 WG317700 Flexible flat cable DM-CN301 *1 *4 DJACK-CN301 *1 *4 14P e 230 WG317600 Flexible flat cable DM-CN601 *1 *4 PNL-CN01 *1 *4 12P r 250 WG317800 Flexible flat cable DM-CN602 *1 *4 PNR-CN02 *1 *4 15P t 2 WG318100 Flexible flat cable DM-CN701 *1 *4 GHL88M-CN02 *1 *4 27P y 260 WG317900 Flexible flat cable DM-CN901 *1 *4 AM-CN104 *1 *4 19P u WH501 (WG45930) PSW AM-CN101 *1 *5 PSW-CN501 *2 *5 4P i 290 WB092100 BL AM-CN102 *1 *5 LCD *3 *6 2P o WH401 (WG46060) PB AM-CN103 *1 *5 PB-CN401 *2 *5 3P !0 WH201 (WG46040) TWL AM-CN201 *2 *5 TW(L) *3 *6 2P !1 WH202 (WG46050) TWR AM-CN202 *2 *5 TW(R) *3 *6 2P !2 30 (WG45880) SP2 AM-CN203 *1 *9 Speaker Lch *3 *9 4P Speaker Rch *3 *10 !3 WH601 (WG46070) MVR AM-CN204 *1 *5 MVR-CN601 *2 *5 5P !4 WH901 (WB09270) ENC PNR-CN03 *1 *5 ENC-CN901 *2 *5 3P !5 -- -- -- Speaker *11 -- TW *3 *10 2P X0159A00 * The parts with "( )" in "Part No." are not available as spare parts. * 1 : Installation * 2 : Dip soldering * 3 : Manual soldering * 4 : The conductor of a cable and the point of contact of a connector are untited. * 5 : Edge mark is adjusted to Pin 1 (왕) side. * 6 : Edge mark is connected to + side. * 7 : Edge mark is connected to + terminal. * 8 : White wire is adjusted to Pin 1 (왕) side. * 9 : White wire is connected to + terminal. * 10 : Red wire is connected to + terminal. * 11 : Connected Caution: Be sure to attach the removed filament tape just as it was before removal. 7
8 DGX-620/YPG-625 ■ BLOCK DIAGRAM USB SUSTAIN TO DEVICE TO HOST PB CONTRAST BACK LIGHT PSW VR301 PITCH BEND DJACK JK301 JK303 JK302 VR401 STANDBY/ON LCD CN401(3P) DISPLAY 320 X 240 STN SW501 CN301(14P) CN501(4P) CN301(14P) CN201(14P) CN103(3P) CN102(2P) CN101(4P) DM +5D +29V XD0-3 AM YD,LP IC102(3P) 6MHz USB DC/DC DATA ENTRY CONTROLLER CONVERTER +21~27V XCSL,WF 3 +5V 1 X301 IC902 (3P) IC301 REG. ENC (64P) IC202 +3.3D +3.3V 2 +3.3D (8P) +3.3D ROTARY ISP1161A REG. IC101(3P) ENCODER 56,58 7,12,22,25 LCDC 32,40,48,55 IC201 +2.5V 3 +5V 1 +3.3D +2.5D (64P) +2.5D +5D REG. +5D REG. IC102 (5P) S1D13700F00A IC901 (3P) 2 EC901 20 5 RESET PD3 *A *B CN901(3P) 4 16 MA0-23 3.6V ICN CS0:128M ROM +5D MD0-15 CS1:LCDC +5A D101 16.9344 MA/MD CS3:8M FLASH 12,13 MHz *A:24,47,66,90,120 +3.3D +3.3D +3.3D CS5:USBC CN03(3P) X101 *B:15,46,89,119 PD1,2 37 37 1,6 FZ001 IN[0-6] CPU 38 128M 8M 25 16M CN602(15P) CN02(15P) SW YMW767-V ROM FLASH DRAM DC IN 12V MATRIX PB0-7 PROG ROM TA601-604 IC101 /WAVE CN901(19P) CN104(19P) PA[4-7] (128P) IC802(48P) IC803(48P) IC804(50P) LED LED JK101 DRIVER PA0-7 IC501(10P) +3.3D SDI 41 RXD1 TXD1 SD0 2 PNR ADC PITCH BEND +5D 38 37 40 8bit CR701 +5A BCLK, WCLK +5A PNL 5MHz R704 8 14,15 18,38 DAC 14 7 2 1 L IC201(14P) SW IN[0-6] CPU 27 SYSCLK, BCLK, WCLK 24bit 8 LPF 14 CN601(12P) 7 R Vcc CN01(12P) MATRIX IC701 (44P) 6 JK201 2 PCM1742K L 1 11 PA[0-3] uPD789022GB 22 POWER AMP PHONES/ R 6 8 IC401(16P) IC402(8P) 6W X 2 OUTPUT LED LA4625 CN203(4P) CN701(27P) CN201 CN202(2P) (2P) CN204(5P) VR601 TWEETER TW (R) TW (L) TWEETER CN601(5P) 3cm 3cm Keyboard(GHL) 88KEY with touch response B[1-15] N[11-16] N[21-26] R L CN2(27P) MASTER MVR VOLUME WOOFER WOOFER GHL88L GHL88M GHL88H 12cm 12cm 4 4 CN1(17P) CN1(17P) CN3(17P) CN1(17P) PA-5D (AC Adaptor) (A-1~C2) (C#2~C5) (C#5~C7) 28CA1-2001000277
DGX-620/YPG-625 ■ DISASSEMBLY PROCEDURE Caution: 1) Flat cable’s contacts are visible from the back. Pay attention not to insert and install the cable to the connector inversely. (Fig.1) 2) Be sure to attach the removed filament tape just as it was before removal. 1. Lower Case Assembly (Time required: About 9 minutes) 1-1 Remove the twenty (20) screws marked [510A]. The bottom boards L and R can then be removed. (Fig.2) Front Side (Printed Side) Back side 1-2 Remove the thirty six (36) screws marked [500] and the forty six (46) screws marked [510B]. The lower case assembly can then be removed. (Fig.3) (Fig.1)
DGX-620/YPG-625 2. DM Circuit Board (Time required: About 10 minutes) 2-1 Remove the lower case assembly. (See procedure 1.) 2-2 Remove the four (4) screws marked [480A]. The DM circuit board can then be removed. (Fig.4) Speaker Speaker (Tweeter(R)) (Tweeter(L)) TW (R) DJACK PSW TW (L) [480B] [480G] [480A] [480D] [480E] [480B] DM AM [480C] Upper Case PB Wheel Assembly (Fig.4) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) 3. TW Circuit Board, Speaker (Tweeter) 5. AM Circuit Board (Time required: About 9 minutes) (Time required: About 10 minutes) 3-1 Remove the lower case assembly. (See procedure 1.) 5-1 Remove the lower case assembly. (See procedure 1.) 3-2 Remove the two (2) screws marked [480B]. The TW 5-2 Remove the seven (7) screws marked [480D]. The AM circuit board and speaker (tweeter) can then be removed. circuit board can then be removed. (Fig.4) (Fig.4) * The left and right speakers (tweeters) can be removed in 6. PSW Circuit Board the same way. (Time required: About 9 minutes) 6-1 Remove the lower case assembly. (See procedure 1.) 4. PB Circuit Board, Wheel Assembly 6-2 Remove the two (2) screws marked [480E]. (Time required: About 9 minutes) The PSW circuit board can then be removed. (Fig.4) 4-1 Remove the lower case assembly. (See procedure 1.) 4-2 Remove the two (2) screws marked [480C]. The PB 7. DJACK Circuit Board circuit board and the wheel assembly can then be (Time required: About 10 minutes) removed. (Fig.4) 7-1 Remove the lower case assembly. (See procedure 1.) * Make sure to mount the wheel assembly on the volume 7-2 Remove the three (3) screws marked [480G]. shaft of the PB circuit board by firmly inserting it into the The DJACK circuit board can then be removed. (Fig.4) shaft. 10
DGX-620/YPG-625 8. ENC Circuit Board Encoder knob (Time required: About 10 minutes) 8-1 Remove the lower case assembly. (See procedure 1.) 8-2 Remove the encoder knob from the control panel. (Fig.5) 8-3 Remove the four (4) screws marked [480H]. The ENC circuit board can then be removed. (Fig.6) (Fig.5) [480H] [480J] [480F] [480K] [480I] LCD Unit PNR ENC PNL MVR Upper Case (Fig.6) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) 9. PNR Circuit Board (Time required: About 11 minutes) 9-1 Remove the lower case assembly. (See procedure 1.) Volume Knob 9-2 Remove the twelve (12) screws marked [480I]. The PNR circuit board can then be removed. (Fig.6) Cloth 10. MVR Circuit Board (Time required: About 10 minutes) 10-1 Remove the lower case assembly. (See procedure 1.) 10-2 Remove the volume knob from the control panel. (Fig.7) 10-3 Remove the three (3) screws marked [480K]. The MVR circuit board can then be removed. (Fig.6) (Fig.7) 11. PNL Circuit Board (Time required: About 12 minutes) 11-1 Remove the lower case assembly. (See procedure 1.) 11-2 Remove the AM circuit board. (See procedure 5.) 11-3 Remove the ten (10) screws marked [480F]. The PNL circuit board can then be removed. (Fig.6) 11
DGX-620/YPG-625 12. LCD Unit 13. Speaker (Woofer) (Time required: About 11 minutes) (Time required: About 10 minutes) 12-1 Remove the lower case assembly. (See procedure 1.) 13-1 Remove the lower case assembly. (See procedure 1.) 12-2 Remove the DM circuit board. (See procedure 2.) 13-2 Remove the four (4) screws marked [40]. The speaker 12-2 Remove the four (4) screws marked [480J]. (woofer) can then be removed. (Fig.8) The LCD unit can then be removed. (Fig.6) * The left and right speakers (woofers) can be removed in the same way. [40] Speaker Lower Case Speaker [40] (Woofer(L)) (Woofer(R)) (Fig.8) [40]: Bind Head Tapping Screw-B 4.0X12 MFZN2W3 (WE981200) 14. Keyboard Assembly The keyboard assembly can then be removed from the (Time required: About 13 minutes) upper case assembly. (Fig.9) 14-1 Remove the lower case assembly. (See procedure 1.) 14-2 Remove the six (6) screws marked [480L], the twelve (12) screws marked [480M] and the eight (8) screws marked [560]. [480L] [480L] [560] Upper Case [560] [560] Keyboard Assembly [480M] [480M] [480M] (Fig.9) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) [560]: Bind Head Tapping Screw-B 3.0X20 MFZN2W3 (WF489300) 12
DGX-620/YPG-625 15. Disassembling the Keyboard Assembly 15-2 When removing white keys numbered as A-1 and B-1 15-1 White key assembly and black key assembly key and black key, remove two (2) screws marked Remove the four (4) screws marked [270A] fixing the [270B] and then lift the back of the keys and slide the black and white key assembly for one octave (C-B). black and white keys towards you. (Fig.10) To remove the back of the black and white key assembly 15-3 When removing the C7 key, remove a screw marked of each octave, while pushing the end lug of white keys [270C] and then lift the back of C7 key and slide it rearward and lifting the back of keys, slide the black and towards you. (Fig.10) white key assembly towards you. (Fig.10, Fig.11) Note: When removing white key assembly and black key assembly, be careful not to allow grease to attach to the circuit board and rubber contacts, etc. (Fig.11)
DGX-620/YPG-625 15-4 Actuate Rubber Remove the actuate rubber. (Fig.12) Remove in this way. 15-5 Rubber Contact Remove the black and white key assembly for two octaves related to the subject rubber contact. The rubber contact can then be removed. (Fig.13, Fig.14) * Note that the rubber contact has a specific installation Actuate rubber direction. * One rubber contact fits for C#-C (for C-B keys). (Fig.12)
DGX-620/YPG-625 15-6 GHL88L Circuit Board 15-7 GHL88M Circuit Board Remove the black and white key assembly (A1-B2). Remove the black and white key assembly (C1-B5). (See procedure 15-1.) (See procedure 15-1.) Remove the six (6) screws marked [260A]. The GHL88L Remove the seven (7) screws marked [260B]. The circuit board can then be removed. (Fig.13) GHL88M circuit board can then be removed. (Fig.13) Detach the filament tape and disconnect the FFC cable. (Fig.15)
DGX-620/YPG-625 15-8 GHL88H Circuit Board 15-9 Hammer (White Key), (Black Key) Remove the black and white key assembly (C5-C7). Remove the black and white key assembly for the (See procedure 15-1.) related keys. Remove the five (5) screws marked [260C]. The GHL88H With the key frame placed upside down, push the circuit board can then be removed. (Fig.13) hammer forward from the rear, then a click sound is heard and the hammer bearing section can be removed from the hammer axis of the key frame. Take out the hammer sideways. (Fig.16, Fig.17) * When removing the hammer, take care not to cause damage to the hammer bearing and its claw.
DGX-620/YPG-625 16. Assembling the Keyboard Assembly Part Name Range for Applicable Tone Keys 16-1 Hammer (White Key), (Black Key) Hammer, W1 A-1 - F1 White Key After applying grease to the bearing section of the Hammer, W2 G1 - E3 hammer, bring the hammer (white key)(black key) Hammer, W3 F3 - D5 sideways from the rear, fit its bearing section to the Hammer, W4 E5 - C7 hammer axis of the key frame and pull it forward until a click sound is heard. (Fig.18) Hammer, B1 A#-1 - F#1 Black Key * There are 8 hammer types differing in weight. Be sure to Hammer, B2 G#1 - D#3 check the type of the hammer for correct installation. Hammer, B3 F#3 - C#5 (Table 1) Hammer, B4 D#5 - A#6 (Table 1)
DGX-620/YPG-625 16-2 GHL88L Circuit Board 16-4 GHL88H Circuit Board Tighten the six (6) screws marked [260A] to fix the Tighten the five (5) screws marked [260C] to fix the GHL88L circuit boards. (Fig.13) GHL88H circuit board. (Fig.13) 16-3 GHL88M Circuit Board 16-5 Rubber Contact Connect the FFC cable to CN2 of the GHL88M circuit Note that the rubber contact has s specific installation board, attach the filament tape. (Fig.15) direction. Be careful not to install it in the wrong Pass the end of the cable into the through hole in the direction. frame and pull it out from its outlet. (Fig.15) * A triangle mark (∆) on the rubber contact must face Tighten the seven (7) screws marked [260B] to fix the the front. (Fig.19) GHL88M circuit board. (Fig.13)) To prevent looseness of the rubber contact, fit it securely in place using a clip or similar object. (Fig.20) Rubber contact GHL88L Rubber contact Rubber contact Clip GHL88L (Fig.20) Front Triangle mark Triangle mark (Fig.19) 16-6 Actuate Rubber After applying grease to top and bottom faces of the actuate rubber, fit it to the white key (black key). (Fig.21) Fit in this way. Apply grease Actuate rubber (Fig.21) 18
DGX-620/YPG-625 16-7 White key assembly and black key assembly 16-8 Use the two (2) screws marked [270B] to fix the A-1 to After applying grease to the key guide, install the white B-1 keys. (Fig.10) key assembly/black key assembly. 16-9 Use a screw marked [270C] to fix the C7 key. (Fig.10) At this time, check to make sure that the key guide of the key frame and inside slit at the front of white key as well as the contact arm of the hammer and actuate rubber of the white key assembly/black key assembly are installed properly. (Fig.22) Use the four (4) screws marked [270A] to fix 1 octave white key assembly/black key assembly. (Fig.10) Actuate rubber Slit
DGX-620/YPG-625 ■ LSI PIN DESCRIPTION YMW767-VTZ (X6055A00) CPU ............................................. 20 S1D13700F01A100 (X5422A00) LCD CONTROLLER ........... 21 PD789022GB-A15-8E (XZ560100) CPU ................................ 21 ISP1161A1BD (X5879A00) USB CONTROLLER ................... 22 AK4385ET (X6040A00) DAC .................................................. 22 YMW767-VTZ (X6055A00) CPU DM: IC101 Pin Pin NAME I/O FUNCTION NAME I/O FUNCTION No. No. 1 VSS - VSS 65 VSS - VSS 2 TESTN I Input for TEST 66 IOVDD - IOVDD +3.3V 3 PLLBPN I PLL bypass select 67 LBN/LWRN/PF6 O External memory lower-byte enable 4 PLLVDD - PLLVDD +2.5V 68 UBN/UWRN/PF7 O External memory upper-byte enable 5 CIN - Capacitor terminal for PLL 69 RDN/PF4 O External memory read enable 6 PLLVSS - PLLVSS 70 MD00 I/O 7 TRSTN I 71 MD08 I/O 8 TMS I 72 MD01 I/O JTAG input 9 TCK I 73 MD09 I/O External memory data bus 10 TDI I 74 MD02 I/O 11 TD0 O JTAG output 75 MD10 I/O 12 XI I Crystal oscillator 76 MD03 I/O 13 XO O Crystal oscillator 77 VSS - VSS 14 VSS - VSS 78 MD11 I/O 15 VDD - VDD +2.5V 79 MD04 I/O 16 ICN I Hardware reset 80 MD12 I/O 17 ECSN I CPU I/F chip select 81 MD05 I/O 18 EWRN/PD5 I CPU I/F write enable 82 MD13 I/O External memory data bus 19 ERDN/PD4 I CPU I/F read enable 83 MD06 I/O 20 EA3/PD3 I 84 MD14 I/O 21 EA2/PD2 I 85 MD07 I/O CPU I/F address bus 22 EA1/PD1 I 86 MD15 I/O 23 EA0/PD0 I 87 WRN/PF5 O External memory write enable 24 IOVDD - IOVDD +3.3V 88 VSS - VSS 25 ED0/PC0 I/O 89 VDD - VDD +2.5V 26 ED1/PC1 I/O 90 IOVDD - IOVDD +3.3V 27 ED2/PC2 I/O 91 MA17 O 28 ED3/PC3 I/O 92 MA16 O CPU I/F data bus 29 ED4/PC4 I/O 93 MA15 O 30 ED5/PC5 I/O 94 MA14 O 31 ED6/PC6 I/O 95 MA13 O 32 ED7/PC7 I/O 96 MA12 O 33 VSS - VSS 97 MA11 O External memory address bus 34 IRQ0N/PH0 I Interrupt input 98 MA10 O 35 TxD0 O Serial output 99 MA09 O 36 RxD0 I serial input 100 MA08 O 37 TxD1/PG2 O Serial output 101 MA07 O 38 RxD1/PH1 I serial input 102 MA06 O 39 SCLK1/PH2 I External synchronization clock 103 MA05 O 40 SD0 O Serial output 104 VSS - VSS 41 SDI/PH3 I serial input 105 MA04 O 42 BCLK O Bit clock output 106 MA03 O External memory address bus 43 WCLK/SY0 O Word clock output 107 MA02 O 44 SYSCLK/PG3 O Clock output 108 MA01 O 45 VSS - VSS 109 CS0N/PG0 O External memory chip select 46 VDD - VDD +2.5V 110 MA18 O 47 IOVDD - IOVDD +3.3V 111 MA19 O 48 PA0 I/O 112 MA21/PF1 O External memory address bus 49 PA1 I/O 113 MA22/PF2 O 50 PA2 I/O 114 MA20 O 51 PA3 I/O 115 MA23/PF3 O External memory address bus I/O port 52 PA4 I/O 116 CS1N/PG1 O External memory chip select 53 PA5 I/O 117 MA00/PF0 O 54 PA6 I/O 118 VSS - VSS 55 PA7 I/O 119 VDD - VDD +2.5V 56 VSS - VSS 120 IOVDD - IOVDD +3.3V 57 PB0 I/O 121 CS2N/PE0 O 58 PB1 I/O 122 CS3N/PE1 O 59 PB2 I/O 123 CS4N/CASN/PE2 O 60 PB3 I/O 124 CS5N/PE3 O External memory chip select I/O port 61 PB4 I/O 125 CS50RDN/PE4 O 62 PB5 I/O 126 CS51WRN/PE5 O 63 PB6 I/O 127 CS52WRN/PE6 O 64 PB7/SYI I/O 128 CS53WRN/RASN/PE7 O 20
DGX-620/YPG-625 S1D13700F01A100 (X5422A00) LCD CONTROLLER DM:IC201 PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 VSS Ground 33 VSS Ground 2 AB12 I 34 XCD1 O Drain output 3 AB11 I 35 XCG1 I Gate input 4 AB10 I Address bus 36 RESET# I Reset 5 AB9 I 37 SCANEN I Test mode set up input 6 AB8 I 38 TESTEN I 7 HIOVDD Power supply 39 CLKI I Externally sourced system clock 8 AB7 I 40 COREVDD Power supply 9 AB6 I 41 RD# I Read strobe Address bus 10 AB5 I 42 WR# I Write strobe 11 AB4 I 43 CS# I Chip select 12 COREVDD Power supply 44 DB7 I/O 13 AB3 I 45 DB6 I/O Data bus 14 AB2 I 46 DB5 I/O Address bus 15 AB1 I 47 DB4 I/O 16 AB0 I 48 HIOVDD Power supply 17 VSS Ground 49 DB3 I/O 18 FPDAT3 O 50 DB2 I/O Data bus 19 FPDAT2 O 51 DB1 I/O Data bus 20 FPDAT1 O 52 DB0 I/O 21 FPDAT0 O 53 VSS Ground 22 NIOVDD Power supply 54 WAIT# O Wait output 23 FPSHIFT O Shift clock 55 HIOVDD Power supply 24 XECL O X driver enable chain clock 56 CNF0 I 25 COREVDD Power supply 57 CNF1 I 26 FPLINE O Latch pulse 58 CNF2 I Input pin for S1D 13700 setting 27 MOD O Frame signal 59 CNF3 I 28 VSS Ground 60 CNF4 I 29 YSCL O Scan shift clock 61 AS# I Address strobe 30 FPFRAME O Scan start pulse 62 AB15 I 31 YDIS O LCD power-down output 63 AB14 I Address bus 32 NIOVDD Power supply 64 AB13 I PD789022GB-A15-8E (XZ560100) CPU DM:IC701 PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 P12 I/O 23 P32/INTP2/CPT2 I/O Port 3/External interrupt input/Capture edge input 2 P11 I/O Port 1 24 P31/INTP1 I/O Port 3/External interrupt input 3 P10 I/O 25 P30/INTP0 I/O 4 P47/KR7 I/O 26 P22/RXD/SI0 I/O Port 2/Asynchronous serial interface serial data input/Serial interface serial data input 5 P46/KR6 I/O 27 P21/TXD/SO0 I/O Port 2/Asynchronous serial interface serial data output/Serial interface serial data output 6 P45/KR5 I/O 28 P20/ASCK//SCK0 I/O Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock 7 P44/KR4 I/O 29 P07 I/O Port 4/Key return signal detection input 8 P43/KR3 I/O 30 P06 I/O 9 P42/KR2 I/O 31 P05 I/O 10 P41/KR1 I/O 32 P04 I/O Port 0 11 P40/KR0 I/O 33 P03 I/O 12 NC 34 P02 I/O 13 IC Internally connected (N.C.) 35 P01 I/O 14 X2 36 P00 I/O Clock 15 X1 I 37 NC 16 VSS0 Ground 38 VDD1 Power supply 17 VDD0 Power supply 39 VSS1 Ground 18 /RESET I System reset 40 P17 I/O 19 P53 I/O 41 P16 I/O Port 5 20 P52 I/O 42 P15 I/O Port 1 21 P51/TO2 I/O Port 5/16-bit timer output 43 P14 I/O 22 P50/TI0/TO0 I/O Port 5/External count clock input to 8-bit timer/8-bit timer output 44 P13 I/O 21
DGX-620/YPG-625 ISP1161A1BD (X5879A00) USB CONTROLLER DM: IC301 PIN NAME I/O FUNCTION PIN NAME I/O FUNCTION NO. NO. 1 DGND - Digital ground 33 NDP_SEL I Indicates to the HC 2 D2 I/O 34 EOT I EOT input 3 D3 I/O 35 DGND - Digital ground 4 D4 I/O 36 D_SUSPEND O DC "suspend" state output DATA bus 5 D5 I/O 37 D_WAKEUP I DC wake-up input 6 D6 I/O 38 /GL O GoodLink LED output 7 D7 I/O 39 D_VBUS I DC USB input 8 DGND - Digital ground 40 H_WAKEUP I HC wake-up input 9 D8 I/O 41 CLKOUT O Programmable clock out 10 D9 I/O 42 H_SUSPEND O HC "suspend" output 11 D10 I/O 43 XTAL1 I Crystal input DATA bus 12 D11 I/O 44 XTAL2 I Crystal output 13 D12 I/O 45 DGND - Digital ground 14 D13 I/O 46 /H_PSW1 O Power switching control 15 DGND - Digital ground 47 /H_PSW2 O Power switching control 16 D14 I/O 48 D_DM AI/O USB D- data line for DC DATA bus 17 D15 I/O 49 D_DP AI/O USB D+ data line for DC 18 DGND - Digital ground 50 H_DM1 AI/O USB D- data line for HC 19 Vhold1 - Voltage holding pin 51 H_DP1 AI/O USB D+ data line for HC 20 NC - No connection 52 H_DM2 AI/O USB D- data line for HC 21 /CS I Chip select 53 H_DP2 AI/O USB D+ data line for HC 22 /RD I Read strobe 54 /H_OC1 I Overcurrent sensing input 23 /WR I Write strobe 55 /H_OC2 I Overcurrent sensing input 24 Vhold2 - Voltage holding pin 56 Vcc - Power supply(3.3V) 25 DREQ1 O HC DMA request 57 AGND - Analog ground 26 DREQ2 O DC DMA request 58 Vreg - 3.3V regulator output 27 /DACK1 I HC DMA acknowledge 59 A0 I Address bus 28 /DACk2 I DC DMA acknowledge 60 A1 I Address bus 29 INT1 O HC interrupt output 61 NC - No connection 30 INT2 O DC interrupt output 62 DGND - Digital ground 31 TEST O test output 63 D0 I/O 32 /RESET I Reset input 64 D1 I/O DATA bus AK4385ET (X6040A00) DAC (Digital to Analog Converter) DM:IC401 PIN PIN NO. NAME I/O FUNCTION NO. NAME I/O FUNCTION 1 MCLK I Master Clock 9 AOUTR- O Rch Analog out(-) 2 BICK I Audio Serial Data Clock 10 AOUTR+ O Rch Analog out(+) 3 SDTI I Audio Serial Date Input 11 AOUTL- O Lch Analog out(-) 4 LRCK I L/R Clock 12 AOUTL+ O Lch Analog out(+) 5 PDN I Power Down mode 13 Vss - Ground 6 CSN I Chip Select 14 VDD - Power Supply 7 CCLK I Control Data Input 15 DZFR O Rch Data Zero Input Detect 8 CDTI I Control Data Input 16 DZFL O Lch Data Zero Input Detect 22
DGX-620/YPG-625 ■ IC BLOCK DIAGRAM SN74LV32APWR (X5647A00) SN74AHCT1G08DCKR (X0158A00) NJM4580E(TE2) (X2331A00) Quad 2 Input OR 74V1T08CTR (X7542A00) Dual Operational Amplifier DM:IC805 Single 2-Input Positive-AND Gate DM: IC402 DM: IC103,104 1A 1 14 Vcc A 1 5 Vcc +DC Voltage Output A 1 +V 8 Supply 1B 2 13 4B B 2 Inverting 2 7 Output B Input A - + 1Y 3 12 4A GND 3 4 Y Non-Inverting Inverting 3 6 Input A + - Input B 2A 4 11 4Y -DC Voltage Supply 4 -V 5 Non-Inverting Input B 2B 5 10 3B FUNCTION TABLE 2Y 6 9 3A INPUTS OUTPUT A B Y 7 GND 8 3Y H H H L X L X L L MC34063EBD-TR (X7371A00) ADC84S021 (X6905A00) DC-DC Converter A/D Converter DM:IC202 DM: IC501 IN1 7 Drive 8 1 Switch IN2 6 12-Bit 2 VA Collector Collector SUCCESSIVE IN3 MUX T/H S Q Q2 5 APPROXIMATION ADC 3 GND Q1 R CS 1 10 SCLK IN4 4 GND Ipk 7 100 Sense 2 Switch VA 2 9 DOUT Emitter GND 3 8 DIN Ipk Oscillator CT IN4 4 7 IN1 10 SCLK IN3 5 6 IN2 CONTROL 1 CS V CC 6 3 Timing LOGIC Comparator 8 DIN Capacitor + 1.25 V 9 DOUT Reference ± Regulator Comparator Inverting 5 4 Gnd Input R5520H001A (X7414A00) LA4625 (XY209A00) USB High Side Switch Power Amplifier DM: IC302 AM: IC201 DC VCC OUT IN 2 14 5 4 OUTPUT PIN TO VCC RIPPLE SHORT PROTECTOR FILTER PREDRIVER POWER 13 -OUT1 IN1 1 + - IN LOAD SHORT POWER 12 PWR-GND1 PROTECTOR GND1 PREDRIVER POWER 11 +OUT1 1 2 3 OUTPUT PIN TO GND EN GND FLG PRE-GND 3 BIAS OVER VOLTAGE/ SHORT PROTECTOR CIRCUIT SURGE VCC Pin No. Pin Name Function STBY 4 STANDBY SW THERMAL OUTPUT PIN TO GND SHUT DOWN SHORT PROTECTOR 1 EN Enableb (Input) 2 GND Ground PREDRIVER POWER 9 -OUT2 3 FLG Fault Flag (Open-drain Output) IN2 6 + LOAD SHORT POWER - IN PROTECTOR GND2 10 PWR-GND2 4 IN Power Supply Input PREDRIVER POWER 8 +OUT2 5 OUT Switch Output (Switch of the high side switch) OUTPUT PIN TO VCC SHORT PROTECTOR POP NOISE PREVENTION CIRCUIT 5 7 ON TIME POP 23
DGX-620/YPG-625 ■ CIRCUIT BOARDS CONTENTS AM Circuit Board (X7135B0) ......................................... 26 DJACK Circuit Board (X7135B0) ................................... 26 DM Circuit Board (X7136C0) ........................................ 25 ENC Circuit Board (X7135B0) ....................................... 29 GHL88H Circuit Board (X6246D0) ................................ 32 GHL88L Circuit Board (X6244D0) ................................. 30 GHL88M Circuit Board (X6245G0) ............................... 31 MKO Circuit Board (X7135B0) ...................................... 29 MVR Circuit Board (X7135B0) ...................................... 29 PB Circuit Board (X7135B0) ......................................... 29 PNL Circuit Board (X7137B0) ....................................... 27 PNR Circuit Board (X7137B0) ....................................... 28 PSW Circuit Board (X7135B0) ...................................... 29 TW Circuit Board (X7135B0) ......................................... 29 Note: See parts list for details of circuit board component parts. 24
DGX-620/YPG-625 ● DM Circuit Board to AM-CN104 to PNR-CN02 to PNL-CN01 to LCD Unit to GHL88M-CN2 to DJACK-CN301 Component Side Pattern Side 2NA-WG25920 1 Note: See parts list for details of circuit board component parts. 25
DGX-620/YPG-625 ● AM Circuit Board to Speaker PHONES to Backlight assembly to DM-CN901 (Woofer) to TW(R) to TW(L) /OUTPUT to MVR-CN601 to PB-CN401 to PSW-CN501 DC IN 12V 0.5 -1.0mm Component Side A nonwoven fabric does not overflow To pile it up in the upper side, it is pasted. from the end of a jack. 0 - 0.5mm JK302 0 - 0.5mm PWB JK201,JK301 JK101 PWB The nonwoven fabricis prevented from PWB overlapping on the PWB side. ● DJACK Circuit Board USB LCD CONTRAST TO DEVICE TO HOST SUSTAIN to DM-CN301 Component Side AM : 2NA-WG25900 Note: See parts list for details of circuit board component parts. DJACK : 2NA-WG25900 26
DGX-620/YPG-625 ● PNL Circuit Board A ACMP INTRO/ M ON/OFF ENDING/rit. AUT STYLE SONG REPEAT & A-B LEARN REPEAT R METRONOME TEMPO/ ON/OFF TAP REC 1 2 LES LYRICS SCORE PIANO ACMP MENU EXECUTE P.A.T. ON/OFF MUSIC DATABASE FUN FILE CONTROL A" A NTRO/ MAIN/ SYNC SYNC DING/rit. AUTO FILL STOP START A-B START/ REPEAT REW FF PAUSE STOP A 1 2 3 4 5 CLEAR LESSON L LESSON R LESSON START to DM-CN601 ABASE FUNCTION Component Side A" Note: See parts list for details of circuit board component parts. 2NA-WG25520 27
DGX-620/YPG-625 B ● PNR Circuit Board BANK SPLIT VOICE EXIT RESIST 1 2 PORTABLE MEMORY GRAND SPLIT ON/OFF CATEGORY CATEG DOWN UP VOICE STYLE EASY SONG ARRANGER SONG to ENC-CN901 to DM-CN602 B" B SPLIT DUAL HARMONY VOICE VOICE TYPE ABLE AND SPLIT DUAL HARMONY ON/OFF ON/OFF ON/OFF Y CATEGORY UP -/NO 0 +/YES 7 8 9 4 5 6 DEMO 1 2 3 Component Side B" Note: See parts list for details of circuit board component parts. 2NA-WG25520 28
DGX-620/YPG-625 ● ENC Circuit Board ● MVR Circuit Board Rotary Encoder MASTER to PNR-CN3 VOLUME Component Side Component Side to AM-CN204 ● PSW Circuit Board ● PB Circuit Board STANDBY/ON to AM-CN103 Component Side to AM-CN101 Component Side ● TW (L) Circuit Board ● TW (R) Circuit Board to Speaker to AM-CN201 (Tweeter R) to Speaker to AM-CN202 (Tweeter L) Component Side Component Side ● MKO Circuit Board NOTE: MKO circuit board is used as a connector assembly holder. Component Side ENC :2NA-WG25900 PSW :2NA-WG25900 TW :2NA-WG25900 MVR :2NA-WG25900 PB :2NA-WG25900 MKO :2NA-WG25900 Note: See parts list for details of circuit board component parts. 29
DGX-620/YPG-625 ● GHL88L Circuit Board D" D D" D to GHL88M-CN1 Component Side Note: See parts list for details of circuit board component parts. 2NAK8-WF46230 30
DGX-620/YPG-625 ● GHL88M Circuit Board E" E to DM-CN701 to GHL88L-CN1 to GHL88H-CN1 E" E Component Side 2NAK8-WF46240 2 Note: See parts list for details of circuit board component parts. 31
DGX-620/YPG-625 ● GHL88H Circuit Board F" F to GHL88M-CN3 F" F Component Side Note: See parts list for details of circuit board component parts. 2NAK8-WF46250 32
DGX-620/YPG-625 ■ TEST PROGRAM * If you execute the test No.47 (Factory Set), then the user’s preset data may be lost. Therefore, back up the user’s data in advance. A. PREPARATION 1) PA-5D or PA-51 (AC adaptor) is used. 2) Measuring instruments: frequency counter, level meter (with JIS-C filter) Note: Connect a stereo plug to the [PHONES/OUTPUT] jack at 33 ohms. 3) Jigs: Foot switch (FC-4 or FC-5), USB cable, USB memory, USB-MIDI driver (*1) PC (Install a USB-MIDI driver (*1) in PC and finish the THROUGH setup.) *1 Obtain the USB-MIDI driver from CD-ROM (X7225A00) for DGX-620/YPG-625 or Yamaha official website. (URL>>http://www.yamahapkclub.com) B. HOW TO ENTER THE TEST PROGRAM While pressing the C2#, F2 and G2# keys, turn the [STANDBY/ON] switch on. DGX-620/YPG-625 C2# G2# STANDBY ON F2 C. TEST PROCEDURE 1) When the test program is started, “TEST” will be displayed on the LCD. 2) Press the [-] or [+] button of the number buttons to select a test program item. 3) Press the [START/STOP] button to execute the test. * If the test result is OK, or the test item is completed, press the [START/STOP] button again to return to the test item selection display. * Press the [-] or [+] button of the number buttons to select the next test program item. * When the test result is OK, an asterisk (*) is added in front of its item name on display. If the test result is NG, press the [DEMO] button or the lowest (leftmost) white key to returm the item selection display. D. TEST PROGRAM LIST (dBu=dBm) TEST No. LCD Display Test Descriptions, Judgment Criteria -- -- Contrast Check Set the contrast knob to the legible position of LCD. When the contrast knob is turned clockwise (or counterclockwise), the LCD becomes blue (or white). 1 001 Version Displays ROM (Program) version. (In case of OK:“XXX” Prog, NG:“Err” Prog) 33
DGX-620/YPG-625 TEST No. LCD Display Test Descriptions, Judgment Criteria 2 002 Rom Chk1 Checks the ROM that is connected to the CPU. (OK:“Rom OK”, NG:“Rom NG”) The test results appear on the LCD. Check that the LCD displays “Rom OK”. 3 003 Ram Chk1 Checks the RAM that is connected to the CPU. (OK:“Ram OK”, NG:“Ram NG”) The test results appear on the LCD. Check that the LCD displays “Ram OK”. 6 006 Flash Rom Chk1 Checks the flash ROM that is connected to CPU bus. The check result appears on the LCD. Check that the LCD displays “Flash Rom OK”. (OK:“Flash Rom OK”, NG:“Flash Rom NG”) 7 007 USB Storage Chk Checks USB. (OK:“USB Storage OK”, NG:“USB Storage NG”) Connect a USB memory to the [USB TO DEVICE] jack with a USB cable, and execute the test. The test results appear on the LCD. Check that the LCD displays “USB Storage OK”. 11 011 TG1 Chk Outputs the sine wave by changing the channels in sequence from C2 to G4. [32 notes] Check the sound by hearing that there is no noise or abnormal sound. After auto-scaling is finished, individual keys can be played. (If playing two or more keys simultaneously, the first pressed key has priority to make a sound.) 13 013 Pit Chk Connect the frequency counter to the [PHONES/OUTPUT] jack. (L or R) Sets PAN to Center and produces a signal at 440.14 Hz +/-0.22 Hz. Check that the correct signal is produced. -- -- Volume Decrescence Check Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at minimum and check the output level. PHONES L : less than -70.0 dBu PHONES R : -70.0 dBu (dBu=dBm) 14 014 Output R Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check the output level (1 kHz sine wave, PAN=R). PHONES L : less than -45.0 dBu PHONES R : -1.0 dBu +/-2 dB 15 015 Output L Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check the output level (1 kHz sine wave, PAN=L). PHONES L : -1.0 dBu +/- 2 dB PHONES R : less than -45.0 dBu
Ms.Josey 
Ms.Josey