820-3437-B 3 short beep

machelper

New member
Hello;

When power on 820-3437-B 3 short beep error. ( Customer said 1 years ago liquid damaged and cleaned other service and works fine until suddenly stop)
It sounds like memory error and looked for corrosion but cant see and measure ;

PP1V2_S3 = 1.19V
PP0V6_S0_DDRVTT = 0.6V

where can i check next step??
 
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