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sohchx
Active member
I cannot find the location of R303,what are of the chassis is it in and should I be measuring for resistance?
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Did a caps kit,got no neck glow
- Thread starter sohchx
- Start date
I cannot find the location of R303,what are of the chassis is it in and should I be measuring for resistance?
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sohchx
Active member
KevinMullins
Active member
That is fine.
That is a little low, but ya may need to remove both leads to get a proper reading.
Just trying to recap what's going on here.....
You mentioned a B+ of 159v, was that from pin 4 of the regulator or from one end of the big resistor?
What does the voltage measure on BOTH ends of the large resistor?
Is this a 19" or 25" chassis?
Were both the HOT and the Regulator properly insulated from the heatsinks?
Were capacitors C55, C56 done with the cap kit? Either of them backwards?
Definitely sounds like HV shutdown as others have mentioned. (can pull one end of D10 to verify, should fire up)
Just have to determine if it is from the power supply side of things or further down the line.
modessitt
Volunteer: Encyclopedia Submission Moderator
Is your C36 bright green or dark green?
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sohchx
Active member
My B+ was measured at P202, pin 3 on the neckboard.
For the Voltage measurement on the large resistor,do you want AC or DC?
Voltage has not been measured from the large resistor,only resistance
The chassis is 19"
Both insulators are still intact and adhered to the chassis
C56 was replaced, C55 was not included in my kit,Polarity is correct on C56
Yesterday I replaced R101 6.8k 3w resistor
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sohchx
Active member
Bright green
cadillacman
Well-known member
because if you dont know how to test b+ or dont know what a hot is, you sholdnt be touching a monitor!!
How else is he going to learn? We all have to start some where. The guy should be given props for diving into a monitor chassis even if it is feet first! LOL!
Matt
KevinMullins
Active member
DC
Agreed...... I didn't know diddly squat about monitors and my first was a U5000 that liked to catch fire.
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sohchx
Active member
Thank you!!
Agreed...... I didn't know diddly squat about monitors and my first was a U5000 that liked to catch fire.
LOL! Yeah, U5000's suck. Almost as bad as BITD working on k6100's. I used to fix those things only to watch them burn up within a few minutes of being power up. This was back when the 3716's were around $15.00 and the 3792's were $10.00 or so.
Ugh...
Matt
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sohchx
Active member
DC
Agreed...... I didn't know diddly squat about monitors and my first was a U5000 that liked to catch fire.
DC volt measurement is 6
KevinMullins
Active member
Well that can't be right.....not if you got 159v at P202 pin 3 on the neckboard.
Give us TWO measurements, one from each end of this resistor.
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modessitt
Volunteer: Encyclopedia Submission Moderator
Pull it out and read the number on it, then post that number here...
cadillacman
Well-known member
another one of those aye mod? (if so man i gotta remember that!!!!)
modessitt
Volunteer: Encyclopedia Submission Moderator
Maybe. The ones I saw that were wrong were bright green, but I've seen bright green ones that were right, too...
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sohchx
Active member
I did it two ways,one test lead on the left prong one on the right and that gave me 006DCV I then put both leads simultaneously on one tab and then the other which gave me 0DCV. I don't see any other way to do it. I also noticed something else when its powered on. The resistor at R105 gets really hot.
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sohchx
Active member
1600 432 h
