820-3462 No Caps Lock light

XooP

New member
The Caps Lock light on this board doesn't work. Caps lock works but no light. I have tried different keyboards and still the same.
 

jadao

Member
Liquid damage/corrosion, missing components?
-look at caps lock led drive circuit(u5830 q5736 q5738 and q5734)
-check continuity between pin 40 U5701 and pins 5&2 of U5730
 
Last edited:

XooP

New member
Yes water damaged. My initial problem with the board was missing One wire 3,42V, but got that sorted. This board doesn't have any components of the LED drive circuit. I have already tried to replace U5701.
 

dukefawks

Administrator
Really who cares about the cap lock LED? It is simply driven from U5701, so either bad trace or resistor R5714 or bad connector.
 

XooP

New member
I do :), Okey, thank you, I'll try the connector when I get back from my summer holiday. R5714 is fine.
 
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