A2179 / Board 820-01958 - liquid damage, 5v- loop 54 -0 54 ma

samstown

Member
Hi,

I got this board, water on the right side, not on CPU side, corrosion on recto/verso.

I get

PPBUS_G3H = 12.27
PP3V3_G3H_RTC = 0V


Thanks
Sam
 

2informaticos

Administrator
Staff member
"water on the right side"
Audio board affected by corrosion on both sides?
Also check audio flex and connectors.

Post diode mode to ground at 3V3_G3H_RTC.
 

samstown

Member
Thanks. By right side, I meant on USB-C connector side. nothing on audio/jack board

Diode mode to ground at 3V3_G3H_RTC = 0.400
 

samstown

Member
Thank you, was short. I don't see the value of that resistor. How can I know what resistor I can take to replace it ?

btw I've read another poste to check if T2 is still ok, R6401 (PIN1) SPKRAMP_RESET_L, diode mode to GND =0.351, that mean T2 should be ok.
 

2informaticos

Administrator
Staff member
"was short"
What was short?
The resistor itself MUST be short (between its pins); is 0 ohm resistor!

Do you get voltage on its both pins?
 
Last edited:

2informaticos

Administrator
Staff member
Missing enable signal.
May have a problem with U7000; try changing it.

The resistor value is marked on the schematic...
 
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