[TechAssist] Re: Help-mag.PTV775-Ah01 low b+
- From: "Damon" <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 25 Sep 2001 21:16:36 -0500
Q802 is is the horiz output for the deflection yokes. Part #4835 1304 8074,
2SD2539. There is no cross in ECG or NTE. You'll have to get it from MCM
Electronics
www.mcmelectronics.com
Check D806 and 808---retrace diodes; and c817 and c819 0.011uf and ???
(unknown value) respectively....these are about the only parts that would
cause a repeat failure. I doubt you'll see these parts bad.
HV isn't associated with this circuit at all. it has its own circuit section
which provides tighter regulation of HV.
----- Original Message -----
From: "bob" <bob_whigt@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, September 25, 2001 9:33 PM
Subject: [TechAssist] Re: Help-mag.PTV775-Ah01 low b+
>
> Hello guys
> Found Q802 shorted # D2539 i cant cross,any generics for it?I thank it is
a
> high speed switch the location is hor- left side of flyback on the long
> heatsink ,left side of a smaller npn.Any one seen this trans. short before
> on a PTV775.I beginning to thank i might find out that the h.v. spitter
took
> it out.Thanks for the help...........Have a great day ........bob
> ELECTRON WORLD
> GUTHRIE KY
>>
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