Electronics > Repair
Please help, FLUKE 8920A Multimeter Repair
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Harry_22:
Double check J102, P102 around pin 5 and C204
I mean blow through a cocktail straw :)
daisizhou:

--- Quote from: Harry_22 on June 11, 2024, 09:19:44 am ---Double check J102, P102 around pin 5 and C204
I mean blow through a cocktail straw :)

--- End quote ---

Please see the attached picture.
R241-JFET Q29 connection wire passes through C204 and passes through the PCB at the bottom of C205.
If we are looking for -5.XV voltage, I suspect there is a strong suspicion here.

That's why I suggest trying to remove C204 and C205.If there is no change, put it back as it was.
daisizhou:

--- Quote from: Harry_22 on June 11, 2024, 09:19:44 am ---Double check J102, P102 around pin 5 and C204
I mean blow through a cocktail straw :)

--- End quote ---
Look, it's right next to the PCB
Harry_22:

--- Quote from: daisizhou on June 11, 2024, 09:56:31 am ---, I suspect there is a strong suspicion here.


--- End quote ---

Yes, you are absolutely right. It's a pretty tricky place.
Вut why don't you want to blow? I'm not asking to make a film about this, although it will be very interesting if the tension changes.
daisizhou:

--- Quote from: Harry_22 on June 11, 2024, 10:05:31 am ---
--- Quote from: daisizhou on June 11, 2024, 09:56:31 am ---, I suspect there is a strong suspicion here.


--- End quote ---

Yes, you are absolutely right. It's a pretty tricky place.
Вut why don't you want to blow? I'm not asking to make a film about this, although it will be very interesting if the tension changes.

--- End quote ---
"blow through a cocktail straw"  I don't understand what you mean by "cocktail".Is it a hose connected to compressed air?Are there any pictures?

Do you mean any tiny plastic hose?
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