[TechAssist] Re: 32" RCA CTC187 - Dead Set?
- From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 23 Oct 2004 20:50:07 -0300
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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