[TechAssist] Re: RCA CTC131M, dead.

Kevin
tighten screws to chopper power transistor and solder leads to socket.
If still won't come on look for single red wire from tuner assembly that
plugs in near power supply
with ac power applied pull this wire loose , if set powers on (will have
loud volume and raster on screen but no tuner operation)
go back and recheck tuner control assembly, usually solder connections and
bad electrolytic caps.
If still doesn't come on look for power supply problems
hth
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc

----- Original Message ----- 
From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, December 08, 2004 4:13 PM
Subject: [TechAssist] Re: RCA CTC131M, dead.


> CTC133B: may not turn on or turns on erratically:
> Choke L403 coupling the +131V source to "source 1"(on sams) had cold
> solder connection.Located  near rectifiers at front of chassis.
> CTC130:
> Immediate shutdown after turn on.With variac lowering AC voltage it
> cycled on/off moments later fkyback exploded.
> CTC131A: dead. Chopper output Q101. tighten screws and pins. (metal case
> part)
> CTC133B: Lightning, dead. Repl. tuner/remote module MTT008A. and chassis
> parts: R102(2.7 ohm 15W), F100(5A fuse),Q100 (VIPUR FET# 164599).
> CTC130: Dead. blows 5A fuse:
> cap C425 (.43mfd@200v) shorted.(HOT collector measured 0 ohms to gnd
> until yoke plug removed as test)Also R101 3.9 ohm 10 watt open.
> Hope these arcaic records help.
> ;-)
> Phil Bader
>
>
> Kevin wrote:
>
> >This is a 19 year old 27" RCA that will not power up.  I soldered the
> >infamous tuner connections, with no difference and the fuse and HOT
> >tested good.  This is the most difficult chassis that I have worked on.
> >Are there any common failures with this chassis?  TIA.
> >
> >Kevin Wilks
> >Kevin's TV & Video Repair
> >Penticton BC Canada
> >kevintv@xxxxxxx
> >
> >
> >
> >
>
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> -- 
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
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