I find this murata ptc are 540 ohm not 640. But is impossible to find an equivalent.
How substitute this?

Thanks so much again,

Maurizio.

Ok i find the component i lost, it's not a capacitor, is PT0008 (prf15bb541nb6rc) a NTC thermistor, 640 ohm made by murata.

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I hope to find it a replacement.Ok i find the component i lost, it's not a capacitor, is PT0008 (prf15bb541nb6rc) a NTC thermistor, 640 ohm made by murata.

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Any continuity with the DC/DC converter with the mosfet.
I give up, without the component layout i'm lost.

Sorry again

Maurizio.

Thanks mon2 i trace it with the schematic.

Sadly i don't find the pcb layout, it's on the net but i can't find.

Thanks,

Maurizio.

Mon2, is the little cap immidiately on the left of PQ1101 and circle in orange. No the Mosfet is not missing.

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Hi at all, i replaced all the mosfet and the driver, but before power-up i note, have missed (sadly with hot air) this little capacitor marked in orange.
What type of value have this capacitor? Before power up i wanna to install it.

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Thanks,

Maurizio.​Hi at all, i replaced all the mosfet and...

Thanks so much mon2.

Maurizio

Thanks mcpl.

The mosfet driver, is marked CG9. What did mean?
I'm unable to find the datasheet.

Thanks,

Maurizio

SMDFlea can i buy safely on aliexpress?

Thanks so much,

Maurizio

Thanks SMD. I replace it with this.

Thanks again.

Maurizio

Hi at all. My thinkpad is dead yesterday.
After open the bottom board, i see PQ1101 go to burn after powerup.
Probably is shorted? On the schematic is a n channel mosfet, marked as AONR32340C.

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Hi everyone. I hope to understand better the troubleshooting of my notebook.

Hi at all.