Problem in LCD of LP-PIC DEM 2 PLUS Demo Kit

[ecaits]

Dear Friends,

In my LP-PIC DEM 2 PLUS Demo Kit, LCD is becoming too dull and not working at all. Before one day, it was flickering but today it was gone totally. I am using 40 pin PIC16F877.

I have checked for any short wire but not found any.

Can anybody know why this problem happen??? What may be the cause for that???

 

[horace1]

worth checking for a poor connection (press on the display and try a soldering iron on the connections)
I have had LCDs fail on Microchip's explorer 16 development boards - changing the display usually fixed the problem

 

[snishanth512]

After applying the power supply, check for voltage levels that appears at the LCD pins using multimeter.

Use LCD datasheet to know the input voltage levels.