[TechAssist] Re: RCA PTV P61960 PTK195Y06 no vertical sweep
- From: "Larry E." <videotech@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 18 Sep 2002 22:06:54 -0400
Robert,pull the vertical yoke winding, if your 13v supply line returns
to 13 volts,take a heat gun and heat up C14501 and C14503 and see if the
vertical returns or partially returns, if it does try removing these 2
caps and then scrape off ALL the glue that holds them to the board.
Check the board traces with a magnifying glass and verify their still
good, then check the caps, sometimes their still good, othertimes their
not, this should fix your set.
Larry Eastman
American TV& Electronics
Crystal River, Fl. 34428
tvservice wrote:
> Hey all you RCA techs,
> I know whats good on this chassis but don't know why I have no vert
> deflection. I have replaced U14501, U13201, RN14501, U12601, CR14501
> I have .5vpp (thats point 5vpp)at U12601 pin 15 (should be @2.4vpp), U14501
> pin1 +15v, pin 7 +14.8v, pin 2 +26v, pin 6 +25.4v, pin 5 +26 v, pin 3 +1.4v
> My + 13 volt supply from flyback CR14703 is +21 volts, all other flyback
> source voltages OK
> What am I missing?
> tia
> Robert
> tvservice@xxxxxxxxxxxxxxxxxxx
> H & H Electronics Inc
>
>
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--
Larry Eastman
American TV & Electronics
Crystal River, Fl.
http://www.tvjunkyard.com
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