(347) 552-2258 [email protected]

820-00281 No Power, pulls 20v but no amps

prodigy83

prodigy83

Member
My reference: TT10275
Board History: Tons of dust, very dirty, especially around U4200.
PP1V8 I get nothing.
PPBUS_PMIC I get the 12.59v
PP5V_PMICLDO: 0v
PP3V3_S5: 3.3v
PP3V3_PMICLDO: 0v
P1V2_SW_SNUB: 0v
U7800 problem?
 
prodigy83

prodigy83

Member
Diode mode:
PP1V25_PMICVREF .888, its supposed to be .480.
P1V2_PHASE .086 supposed to be .224.
PP1V2_S3 .087 supposed to be .223.
PP0V6_S0_DDRVTT .262 supposed to be .136.
I am going to try and swap out this chip U7800 if I have a donor somewhere.
 
prodigy83

prodigy83

Member
Under U7800, pad TP_PMIC_PGC came up while applying new solder. It does not go anywhere else, is this going to be a problem?
 
You must log in or register to reply here.
Top