PTK169 B+ still high

[Roy and Rosa]

PTK169AV had shorted hv splitter.
I dont have repair manual. I checked other posts I could find on net.
I replaced the 4 caps around smps. B+ in standby is 168 volts and drops to
160 volts in run.
I adjusted the pot labeled B+ reg, the one under the black snap cover, It
made no effect on standby and only drops to 159 volt in run.
I used RCA caps for 15 and 39 uf caps...105 deg.C for the other 2.
What else should I look for? Is there a pot I missed for standby
adjustment?
Thanks

 

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What are ALL the smps primary AND secondary voltages in standby.
FYI, you may have already damaged the new hv splitter by running the
set with the b+ that high.

 

[Art]

Also check the precision resistors in that circuit, also may require the ic.

 

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Download the ctc169 information here: http://www.eserviceinfo.com/
It will help even if component values are a little different.

 

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Here is the direct link:
http://www.eserviceinfo.com/downloadsm/4999/RCA_proscan.html

 

[Guest]

PTK169AV had shorted hv splitter.
I dont have repair manual. I checked other posts I could find on net.
I replaced the 4 caps around smps. B+ in standby is 168 volts and drops to
160 volts in run.
I adjusted the pot labeled B+ reg, the one under the black snap cover, It
made no effect on standby and only drops to 159 volt in run.
I used RCA caps for 15 and 39 uf caps...105 deg.C for the other 2.
What else should I look for? Is there a pot I missed for standby
adjustment?
Thanks

Are you sure you're using the right ground to measure the B+?

 

[Roy and Rosa]

I have 143 volts in standby and responsive to adjustment.
BUT i only have about 7 volts on the 15 volt line. And nothing on the 5
volt line.
I will replace D4118 tomorrow.
When I unsolder WJ324 I get 14.8 vdc
when I resolder wj324 and unsolder jumper WJ320 I get 7 vdc.
Problem seems to be in 15volt 'B' supply.
I must have been using the wrong ground. I guess I was measuring to the
hot ground on the chopper heatsink!
The schematic from that link from dkuhajda gave me really helped.
Thanks for replys Roy

 

[Roy and Rosa]

The 15 volt rectifier, D4118, was the problem. Set works great now.

 

[Art]

Congrats, rather lenghtly trip around the chassis tho, Eh?