At 04:57 PM 09/11/2009, you wrote:
>Thanks for the reply, there is only a few resistors and diodes, I'll
>just replace all of them. I think the markings are OK to determine
>values. Probably the transformer voltages can be measured and educated
>guess what to replace it with if need be. Probably I can check the
>resistance of the transformer windings. I'm pretty sure it's center
>tapped, then the resistance of both sides should be close. :)

You might want to also look at the power supply to see if the electrolytic cap
has died, which could result in the current to the display varying.

Try paralleling it with a known good one of similar value and same or
higher voltage rating if you don't have an ESR meter handy.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com



-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist