Quote:
Originally Posted by PontGuy
I agree it seems to be a voltage issue, but strange that the contrast darkens back up after driving a while. I wouldn't expect the voltage on the board to change gradually over time.
Thinking about it now, maybe I'll check the battery. The car is starting just fine but its been in there at least 4 years now. Maybe voltage is low after sitting and something on the board needs time to "recharge"?
I am a whole lot better at working on the old cars- no electronics!
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Now that I think about it, the LCD screen should have its own battery ( think small calculator with a LCD screen). There may be an "on board" battery that is replaceable on the circuit board as well. Its possible the car logic board voltage is slightly charging the battery in the board, OR the LCD is warming in temp, which can affect the contrast.