fluke 87 lcd screen replacement free sample

The Fluke 83 Multimeter is part of the 80-series that was introduced in the very late 80s.  This unit is the lowest model in the line-up and has a basic DC accuracy of 0.3%.  It does not have an RMS AC converter or a backlight like its venerable cousin, the model 87.

Further disassembly reveals that one of the four plastic clips holding the LCD assembly to the main PCB is broken.  These four clips are necessary to maintain even pressure on the elastomer connectors between the PCB and the LCD.  A gentle squeeze with thumb and forefinger while the meter is turned on still reveals absolutely nothing on the display, so this is not the main problem.  It could however, lead to problems later.

Q12 is re-installed and the LCD assembly clipped back on.  The meter is powered up via its normal 9V battery connector.  Vdd now measures 3.20V and Vss measures -3.20V.  The Vdd measurement is a little high, but still within the ±0.3V tolerance.  The meter draws only 0.78mA from it’s 9V supply in DCV mode.  All functions and ranges operate properly, and to top it off, the meter is still well-calibrated.  A Rotary Switch Test yields the values 0, -32, -64, -96, -128, -160, and -192, which are all nominal.

The Fluke 77 Series III Multimeter"s measurements are not displaying in your desired units - for example your voltage measurements are in kilovolts (kV) rather than Volts (V).

If your multimeter is displaying an error message, the battery may be weak. A weak battery may cause every element on the LCD Display to darken. The message "0L" could also display if the battery is weak. You will have to replace the 9V battery.

Your Fluke 77 Series III Multimeter is powered on, but after you connect your leads into the input holes of the multimeter and connect the probes to the desired part of your circuit, the LCD Display does not change.

If the multimeter is not measuring and there are no error messages, you might have the leads in the wrong sockets on the multimeter. For the Fluke 77 Series III Multimeter the black labelled "COM" input (bottom right) is always ground for any type of measurement. However, the red labelled input with the "V" and Omega symbol (top right) is the positive input only for voltage, resistance, and diode measurements. The 300 mA input (top left) is the positive input for any current below 300 mA and the 10 A input (bottom left) is the positive input for any current below 10 A. Remember to use the minimum current value slot necessary, and also to never exceed the device"s capabilities.

If the multimeter is not measuring and there are no error messages, the input ports or leads could be dirty. You can clean the multimeter according to the instructions on the Fluke 77 Series III Multimeter Service Manual.

If the multimeter is not measuring and there are no error messages, the multimeter leads may be broken and you will need to get a new pair. Make sure to only use leads with the multimeter that are accepted for use with it according to the Fluke 77 Series III Multimeter Service Manual.

If the multimeter is not measuring and there are no error messages, at least one of your multimeter"s fuses may be broken and you will need to replace any broken fuse(s). Remember: never use the Fluke 77 Series III Multimeter to measure AC/DC current greater than maximum current allowed for the input port you are using.

You turn on your Fluke 77 Series III Multimeter and use it to measure a value in a circuit. The multimeter seems to be working, but the display is not showing the entire value. Segments, or whole characters, of the output are missing from the seven segment LCD display.

If a segment of the multimeter measurements are not displaying, the LCD (display) on your Fluke 77 Series III Multimeter may be partially or fully damaged. You will need to replace the LCD.

There are a number of resources that you can still use to diagnose or fix your Fluke 77 Series III Multimeter. Consult the Fluke 77 Series III Multimeter Manufacturer Support Materials for more repair advice and guides on part replacement, testing, and cleaning. The Fluke 77 Series III Multimeter Instruction Sheet is another useful resource for understanding how to use the multimeter and fix its basic issues. If all else fails, you can find the Fluke 77 Series III Multimeter Manufacturer Device Page for more information and to contact Fluke Corporation.

QuoteI don"t understand. A quick search on the Fluke website showed me the user manual for the original 87, which seems to contain full specifications.

QuoteOr, more likely, they got damaged or lost. The 87V is offered in various kits with different sets of leads. The Fluke leads that I have on my bench (TL-71) don"t have any visible date stamp.

QuoteIn my opinion it depends on the price. A 87V is obviously newer and better, but I wouldn"t mind an older 87/87-3 if it was cheap enough and working. The extra features of the 87V like higher CAT ratings and low-pass filter are fairly useless for non-industrial use.

They would had less reasons to worry about pissed off customers , or half knowledgeable Greeks to bark for their products , not to mention about their locked forum, that they do not accepting your registration, so to have control against the pissed off customers .. aka " fluke community spamers " .