[TechAssist] Re: GE-CTC187CN Dark with retrace
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 25 Nov 2002 18:58:37 -0500
That almost certainly sounds like a classic T-Chip IC failure (ref# U1001).
It is OEM part# 215524 or generic LA7610. However, aslso check comb filter
FL2651 (part# 225701), Q5001 (part# 215497), and Q5004 (part# 143806).
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: <southadamstv@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, November 25, 2002 5:19 PM
Subject: [TechAssist] GE-CTC187CN Dark with retrace
>
> I have a 31" GE CTC187CN chassis. I turn it on and the audio is ok, when I
turn up the screen voltage up(because its dark) retrace lines appear with no
lumiance and very little color. All major voltages are on the crt are there
but naturally the cathode voltages are high. Q5003 on crt Composite video
(from generator) not good (base 2.14V emitter 2.10V)looks like stairs with
no color attached. 200+ volt on the collector with no waveform. The tv was
worked on before by someone else, the eeprom is on a mount and the tuner has
been reconditioned. Could I still be looking at an eeprom problem or could
the crt be bad?
>
> Larry J. Kibodeaux
> South Adams TV & VCR Repair
> 216 1/2 South Adams Avenue
> Rayne, LA 70578
> southadamstv@xxxxxxxxxxxxxxxx
>
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