HM 4.3 up button not working


 

D Peart

TVWBB Pro
Any ideas on how to figure out what is wrong? I've ohmed out the button board and the buttons report correct values. In the past if there was a problem one of the button resistors was borked, but all three appear correct. What tolerance is acceptable? Maybe my top resistor is a bit out of spec.

Since the other three work, I figure the connection between the button board and the base board is OK.


thanks,
david
 

 

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