Single work

820-2523, No Start Up

Description

Board had slight water damage.
Replaced some components that were missing, including fan connector.
Has green light and it charges the battery but It’s not starting.
No pp3v3_s5 on L7260.
0v on pin5 of q7211.
No shorts on L7260.
Replaced 3v/5v regulator, now got pp3v3_s5.
Board starts now when whe short smc_onoff to ground.
Chip U3500 for SD card reader gets very hot…it was shorted.
Replaced u3500, short is gone.
Board working normally and passes ASD tests.

Summary
Created by

ALRC

Completed on

September 24, 2015

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