Laptop
LA-A992P ONLY POWER LED LIT-NO POWER ON-Old is Gold Series
T
Test Admin (19 Jul 2026)
LA-A992P Main board Not powering up but POWER LED LIT FOR A WHILE.
When Switch on 3.3V 5V Ramps,ACIN,RSMRST goes High but PMPWRBTN stuck Low.But when Adapter Plug PMPWRBTN# HIGH for 20mS.
Found Q30 not transfer PCH PWR.Replaced MOSFET now PMPWRBTN# function restored but issue persist.Further testing revealed that PIN17 AND PIN15 HIGH BUT AFTER 4S Pin15 GO DOWN And No S4#-S3#.
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DPWROK,RSMRST#,LID# etc. All EC Requirement fulfil.
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So Clear CMOS, Now all fine.Board Powered and working flawless.
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