Hi,
first a little history on this board. It was working over night connected to charger and died, no green light. First it seemed an easy job, sense resistors on U7100 were measuring milion ohms... replaced that and U7100, worked till first restart, then i got it working again.. and it went out again.
I have replaced U7100, Q7130, Q7135, Q7180 two times, ran wire R7121 to pin 4 R7120. Replaced SMC twice. Checked all connections around U7100 and all resistors are ok, also there are no shorts.Removed F7140/41. No green light.
PP3V42_G3H is 3,39V , is that enough? Should be 3,42v, but U7090 is ok, R7095/96 ok.
PPBUS_G3H 1,78V
CHGR_DCIN 20V
CHGR_PHASE 1,78V
CHGR_LGATE 0V
PPDCIN_G3H_CHGR 1,78v
These are values as i remember them, can check it again tomorrow.
Any suggestion would be helpful.
Thank you!
first a little history on this board. It was working over night connected to charger and died, no green light. First it seemed an easy job, sense resistors on U7100 were measuring milion ohms... replaced that and U7100, worked till first restart, then i got it working again.. and it went out again.
I have replaced U7100, Q7130, Q7135, Q7180 two times, ran wire R7121 to pin 4 R7120. Replaced SMC twice. Checked all connections around U7100 and all resistors are ok, also there are no shorts.Removed F7140/41. No green light.
PP3V42_G3H is 3,39V , is that enough? Should be 3,42v, but U7090 is ok, R7095/96 ok.
PPBUS_G3H 1,78V
CHGR_DCIN 20V
CHGR_PHASE 1,78V
CHGR_LGATE 0V
PPDCIN_G3H_CHGR 1,78v
These are values as i remember them, can check it again tomorrow.
Any suggestion would be helpful.
Thank you!
Comment