Power supply PF pin question.

debugtimog

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Join Date: Jul 2018

Posts: 30

Country: Malaysia
#1

Power supply PF pin question.

07-04-2019, 04:51 AM

Hi,
I am trying to repair a power supply with a pin label that I have not encountered before. It is labeled "PF". Below is also the picture when I tried measuring with a scope. Anybody has an idea what is it? Looks like a power good signal also.

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budm

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Join Date: Feb 2010

Posts: 40746

Country: USA
#2

07-04-2019, 03:43 PM

Re: Power supply PF pin question.

Where does the PF wire go to?

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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

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http://www.badcaps.net/forum/showthread.php?t=24809
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R_J

Badcaps Legend

Join Date: Jun 2012

Posts: 9582

Country: Canada
#3

07-04-2019, 03:57 PM

Re: Power supply PF pin question.

It might be "Power Fail" signal
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Power supply PF pin question.

Power supply PF pin question.

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