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820-3332 Short on PPBUS_G3H

A

ajdoc

Member
Board clean, no liquid.
Light on charger but no chime etc.

Q7035 extremely HOT.
Short on PPBUS_G3H.

Removed Q7035 - still short.
Q7035/4 no short

Then removed R6905 to check from what side is the short and short was on R6905/1.
Next removed R7050 and short was on R7050/1

Q7030 no short on Q7030/5 and Q7030/4 but removed just in case.

C7025/1 no short.

Removed C7040 and C7045 - still short.
Removed U7000 - still short. Before removing chcked resistnace between pin 27/28 and 17/18 and was OK.

Got no other ideas :(
Anyone can help?
 
J

JohnB8812

New member
I'm assuming you removed F7040 and F7041 and confirmed the short is on pin 1. If Q7035 was getting hot, you need to replace it, Q7030, Q7055, and the ISL all at the same time. Remove those four and see if the short goes away.
 
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