PTK169 B+ still high



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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Relevant Pages

  • Re: PTK169 B+ still high
    ... > I replaced the 4 caps around smps. ... B+ in standby is 168 volts and drops ... > made no effect on standby and only drops to 159 volt in run. ...
    (sci.electronics.repair)
  • Re: PTK169 B+ still high
    ... > I replaced the 4 caps around smps. ... B+ in standby is 168 volts and drops ... > made no effect on standby and only drops to 159 volt in run. ...
    (sci.electronics.repair)
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  • Re: Fluke 77 ohms reading cal off
    ... As you have found it is the only adjustment. ... an accurate 300mv or 3Volts and adjust the pot. ... I took it apart and resoldered the studs for the input leads. ... Voltage readings was about .1 volt difference between the two on DC volts. ...
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