Re: Compaq Presario CQ57 - Does not work

OK, the power button was lighting up, for about 10seconds, than stopped, without any other thing to boot. I've managed to trace the power from the input connector to the TPS51123, the power IC which generates 3.3V and 5V. The 5V rail was dead on the VO1, and the 3.3V rail generated 0.32V on the VO2.
The EN0 pin had 3.3V, the ENC pin had also 3.3V, the VREF was correctly at 1.99V, and VBST1 and VBST2 was 4.57V, VREG3 was 3.25V and VREG5 was 4.93V, so everything seemed fine, just that the VO1 and VO2 were not providing power.
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Re: Compaq Presario CQ57 - Does not work

Same problem here; olorin, have you solved yours?

Thank you for the schematic cyberhack!

Re: New Members - please post your introductions here

Hello!
Searching the internet for repairing my Iiyama TFT, I passed through this forum which seems that has the answer to my problem. Looking forward to solve it and maybe many others. As I read roughly through the forum, people around seems very knowledgeable about any kind of circuit.