[TechAssist] Re: 35" RCA - CTC169JS6 - help!
- From: <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 20 Nov 2003 08:37:08 -0600
Try the ceramic oscillator next to U1001
don't recall location number but it has given some problems
usually intermittent dead
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: "Dan Garris" <dgarris@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 19, 2003 9:35 PM
Subject: [TechAssist] 35" RCA - CTC169JS6 - help!
> I have a very clean 35" RCA (model: G35830WK) Console Home Theatre Series
> CTC169JS6 tv that I've been working on. (tough dog) I want to ask for
> suggestions before going with a replacement chassis from PTS. The set will
> play, but after 20 mins the set will lose it's horiz. regulation (going to
a
> scrambled-looking picture)(drawing higher current whenever this happens
and
> if left on long enough it will finally shut-down) When turned off and
cooled
> down it will play fine again until it heats up and does the same. (The set
> is losing horiz. regulation - like a leaky diode or bad cap)( it will very
> slightly begin to horizontally tear and get quickly worse as it plays
longer
> then will totally lose horiz. regulation and then quit)(there is also a
> slightly noticeable horiz. distoration in the picture but only noticeable
> when on graphics such as the menu or when watching something like QVC
where
> you can take note in the picture's linearity. It's not a clean linear
> picture as if some component in the HV area is not right. (like a problem
> with a cap in the HV area) But I've already replaced ALL the following
> components below with no change in the problem so far! HELP - What have I
> missed that may be causing the problem? (Or it's off to PTS)
>
> T4401 #200418 Flyback Transformer
> Q4302 #200168 Horiz. Drive Transistor
> Q4401 #200167 2SD1885 H.O.T.
> U4101 #200419 TEA2261 IC
> Q4101 #200165 SGSIF461 Transistor
> C1402 #146179 470pf @ 250v
> C4102 #195691 2.2uf @ 100v
> C4104 #214756 15uf @ 63v
> C4108 #208002 39uf @ 100v
> C4145 #190721 1000uf @ 35v
> C4401 #206009 .0162uf @ 1600v
> C4402 #200149 .056uf @ 400v
> CR4402 #243636 MUR460 Diode
> CR4401 #242907 BY228TFK Diode
> CR4118 #164590 FR302 Diode
> RT4201 #207768 Thermistor
> Sams Photofact #4465
>
>
> Dan Garris
> GARRIS TV
> 3104 Neuse Blvd.
> New Bern, NC 28560
> Ph: (252) 638-4477
> DGarris@xxxxxxxxxxx
>
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