LENOVO G570 NO DISPLAY ISSUE
Posted: Wed Jun 29, 2016 7:41 pm
LENOVO G570 NO DISPLAY ISSUE
MB-PIWG2 LA-675AP REV 1.0
I/O- KB930QF A0
DIGNOSIS
POWER ON WITH DC IT CONSUME ONLY .065AMP THEN AGAIN SHUTDOWN
REMOVE THE PROCESSOR AND POWER ON SAME AMP CONSUME BUT BOARD CONSTANT ON
CHECKED ALL VOLTAGE OK EXCEPET VCORE AND VCCSA VOLTAGE MISSING
CHECKED ALL VOLTAGE ARE AVILABLE NEAR V CORE IC (ISL98531)
ACTION
BRUSH BOTH BIOS EC & MAIN SAME ISSUE
CHANGE THE I/O SAME ISSUE
CHANGE THE VRM IC ISL98531, AND CHECKED WITH PROCESSSOR ALL VOLTAGE NOW OK BUT NO DISPLAY
CHANGE THE PROCESSOR AND ITS NOW WORKING DONE.....
MB-PIWG2 LA-675AP REV 1.0
I/O- KB930QF A0
DIGNOSIS
POWER ON WITH DC IT CONSUME ONLY .065AMP THEN AGAIN SHUTDOWN
REMOVE THE PROCESSOR AND POWER ON SAME AMP CONSUME BUT BOARD CONSTANT ON
CHECKED ALL VOLTAGE OK EXCEPET VCORE AND VCCSA VOLTAGE MISSING
CHECKED ALL VOLTAGE ARE AVILABLE NEAR V CORE IC (ISL98531)
ACTION
BRUSH BOTH BIOS EC & MAIN SAME ISSUE
CHANGE THE I/O SAME ISSUE
CHANGE THE VRM IC ISL98531, AND CHECKED WITH PROCESSSOR ALL VOLTAGE NOW OK BUT NO DISPLAY
CHANGE THE PROCESSOR AND ITS NOW WORKING DONE.....