Schematics Predator PT315-52 Compal FH52M LA-J891P Rev 0.1

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Acer Predator PT315-52 Compal FH52M LA-J891P Rev 0.1
Schematics, BIOS Nitro AN515-52 DH53F
boardview LA_J891P-R10_GTX 1660 Ti_RTX 2060_2070_Main Board.bdv
EC_DH53F_1A

 

[ThienBui]

clear me please.

clssss.zip

 

[master1212]

I have an LA-J891P. No power. I have measured, no short circuit. I have no 3V3, and no 5V. 3V is normally provided by PU301 and 5V by PU501. Both voltages are normally always on. I have 19V at the PU301 and PU501 input (PIN 2-5). However, both do not switch through. I do not understand why. Does anyone have an idea?
THX

 

[ThienBui]

I have an LA-J891P. No power. I have measured, no short circuit. I have no 3V3, and no 5V. 3V is normally provided by PU301 and 5V by PU501. Both voltages are normally always on. I have 19V at the PU301 and PU501 input (PIN 2-5). However, both do not switch through. I do not understand why. Does anyone have an idea?
THX

try one BIOS new before