[TechAssist] Re: 32" RCA CTC187 - Dead Set?
- From: "FERNAND GOGUEN" <fgoguen@xxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 22 Oct 2004 20:59:18 -0700
Isn't there a 1.5 meg resistor in that circuit that causes no start up?
Fernand Goguen
Goguen TV Service
Cocagne N.B. Canada
----- Original Message -----
From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, October 23, 2004 4:50 PM
Subject: [TechAssist] Re: 32" RCA CTC187 - Dead Set?
> Dan,looks like you have this unit "almost"repaired.I'd be looking at that
12
> volt run cct .You said all your stby volts were ok,so what is supplying
that
> Q4802?I think your very close to a fix....
> Don of HARTS-TVCR"ASC"
> 9 Robert St.,Oromocto,NB,Canada,E2V3N2
> Tel#506-357-9785,Fax#506-357-6010
> hartstv@xxxxxxxxxxx
> ----- Original Message -----
> From: "Dan Garris" <dgarris@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, October 23, 2004 5:30 PM
> Subject: [TechAssist] 32" RCA CTC187 - Dead Set?
>
>
> > What: 32" RCA TV
> > Model: F32672SB
> > Chassis: CTC187CL3
> > Sams#: 3672
> >
> > Dead Set, No blown fuse, No Relay CLick, HOT Shorted.
> >
> > Replaced w/ Original Q4401 BUH517 HOT, Replaced U4101 STK730-150
Regulator
> > IC, Performed TOB repairs and even changed the 223957 eeprom, (using
> > original eeprom set still dead) Checked several of the common failure
> > diodes
> > ok, Resoldered L14101 coil and horiz. driver transformer. The standby
p/s
> > voltages are all there and ok (These are test points 1-5 on the Sams). I
> > supplied +12v to the emitter of Q4852 (12v Reg) to get the set to fire
up
> > and it did, ...I turned up the screen control on the flyback and I have
a
> > blank screen with retrace lines, no picture, no OSD, can't even access
> > setup
> > menu. At least I know the FBT & HV circuits are workable! I am getting a
> > mental block on this one and looking for some help. Do I have a bad
T-Chip
> > or has anyone seen this description while troubleshooting a CTC187?
> >
> > Dan Garris
> > Garris Radio & TV
> > New Bern, NC
> > dgarris@xxxxxxxxxxx
> > Ph: (252) 638-4477
> >
> >
> >
>
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