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VESTEL 17MB25 blinking LED, not switching ON

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gatis:
I have problem with VESTEL 17MB2 (branded as MATSUI). When switching power on, all STBY powers are up and OK. CPU three times switching on all VCC in approximately 10s time and after that no more any reaction, just blinking LED. In that start up time nothing happen on screen or speakers. Does anyone has ideas what need to look next?
 :17:

Turnip:
Hi Gatis,

What model, and power/inv panels fitted - Chris

gatis:
Hi Chris,
There is fitted VESTEL branded inventor board 17INV16-1. I tried switch on with plugged and unplugged inventor board. Not seen any differences.

sparky:
hi
post a pic of psu
dave

gatis:
Hi Dave,
There is no problem in the PSU. It is external 12V and works fine. Picture of Chinese made a black box will show nothing. All internal powers (12, 8, 5, 3.3, 1.8, 1.26) forming on the main board.

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