PS5 EDM-030 no power, no beep, no UART

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szape

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Hi!

I have a problem with an EDM-030 board.

Console does not beep, no power.

Things I know:
- Power supply is okay
- All fuses are okay
- TX and RX pins has 3V.
- No UART output
- CMOS battery was dead, 0.1V
- Replaced CMOS battery. It went down from 3V to 2.8v after 10 hours, so battery is draining fast when installed.
- When I connect 12V via lab power supply it takes only 0.06A
- No visible damage, no missing components on board

Please help me. Thanks.
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Update: On the blu-ray drive connector 5V is missing, only 12V present.
 
Last edited by szape,

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