820-3115 no green light, it's ticking.

gcain

New member
So this board came in that is ticking very softly.
When I use a knock off charger the green light flashes really quickly. OEM doesn't light up.

I tried the mechanics trick and used a small pipe to try work out where the ticking is coming from but it didn't work in this case. Board must be too dense or something.

Any ideas where could be ticking and how I can break the circuit to see?
 

Triple6r

New member
Hi i have olso have that tik tik tik tik sound realy soft when charger is plug on i got green light and low ppbus
 

gcain

New member
I'm not picking up on a shorted PPBUS. It measures 0.430 in diode mode but is only about 0.5v

PPBus is a flat 0v.

Investigating Q7080/5 now. ISL measures okay itself.
 
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