[TechAssist] Re: RCA CTC131M, dead.

  • From: Kevin <kevintv@xxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 08 Dec 2004 14:38:37 -0800

Thanks for the tips.  The 2.7 ohm/20 watt resistor tested 
good, but now I have more things to check.

Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx 
 

-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of al m
Sent: Wednesday, December 08, 2004 2:24 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA CTC131M, dead.

Found this in my tips.


The instructions say to check the following:

-R102, 3.3 ohm, 1/2W # 830A33
-R103 47 ohm, 1/2W # 830047
-R106 2.2 ohm, 1/2W # 830A22
-Q100 Chopper turn off trans 142251 (NLA- use 146849 according to my
supplier's web site)
-CR105 Diode # 142569 (subs to NTE506)
-CR108 Diode # 142569 (subs to NTE506)

Not listed, but you need to also check R109, a 2.7 ohm 22W on top of a
small board as you look down on the chassis- can't miss it. The resistor
might be open. Also, good idea to solder the base and emitter leads of
the 160082 chopper output to it's socket connections to insure no
intermittants.


Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message ----- 
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, December 08, 2004 5:09 PM
Subject: [TechAssist] Re: RCA CTC131M, dead.


> No, I don't have a manual.  Yes, I did resolder the tuner module.
There
> were bad connections in the tuner, but the set is still quiet as a
> mouse--not even a peep when it is plugged in.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of al m
> Sent: Wednesday, December 08, 2004 1:56 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA CTC131M, dead.
>
> Do you have a manual? Did you resolder the tuner module?
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message ----- 
> From: "Kevin" <kevintv@xxxxxxx>
> To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, December 08, 2004 4:46 PM
> Subject: [TechAssist] RCA CTC131M, dead.
>
>
>> 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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