820-2330-A no green or orange light / does not start

larossmann

Administrator
Staff member
What has led you to this conclusion? Is U7201 shorting PPBUS_G3H to ground? Do you have a short to ground on PPBUS_G3H?
 

Berky

New member
My thanks to all who have helped here.:)

[HR][/HR] [HR][/HR]
OK, I have here the same motherboard with the same problem.

SMC_BC_ACOK= 3,2V
PP18V5_DCIN_CONN = 18,77V
Voltage on pin 5 of U6915 = 18,77
Voltage on F7040 without battery = 4,582V
Resistance of R5000 pin 2 = 3,59 KOhm to GND pin 1 = 2,6 KOhm to GND
Voltage on SMC_TPAD_RST = 0V
PP3V42_G3H is present with 3,348V on U7000
 

Berky

New member
Frankly, I do not I know it gave up just
I also believe that the motherboard is totally shot.
 

Berky

New member
I have resolder U7000 and now comes 12,27V on F7040. Have anyone idea?
 
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Berky

New member
OK, now I have Green Led on Magsafe and only 12,56V on F7040! is it ok or
must be have 12,6V only?
The next problem I have, no Power on a
UGATE2 (pin 26) of ISL6236 and no 1.103V out on (pin 16) Phase1 to PP1V1_S0GPU_REG.
 
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