[TechAssist] Re: CTC197CD RCA
- From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 14 Feb 2004 10:51:07 -0500
Aww Shucks Ed, I was gonna send the 10 bucks via UPS COD! Glad to hear you
found it anyway, I've had three CTC197's recently with the socket bad and I
think it's caused by the flyback. Each time I have pulled and checked that
cap first and it was not the problem but I guess it sure can be.
**************************************************
Jim Myers
Since 1972
Telrad Electronic Services Co.
Fort Wayne, IN 46815
*************************************************
----- Original Message -----
From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, February 14, 2004 10:45 AM
Subject: [TechAssist] Re: CTC197CD RCA
Fix for the set was leaky C15102 0n CRT board. Thanks to Paul (Winstips)
and a couple of others that had mentioned this.
That cap shows no fault when measuring. Only removing it temporarily
will confirm problem. (102K@3KV)from screen lead (yellow) to ground.
Also..I found that measuring screen voltage raw from flyback only showed
about 150 volts, when disconnected from CRT board. I suspected that to
be a little low, but when all is reconnected, and faults corrected
actual voltage will be 330 volts. At least for this 32" set.
Someone had asked about CTC197, with Poor Video/Slick Raster. Phil Hull
had entered a fix into Winstips Replacing L12302 (215502). May be a
possibility to explore.
Thanks to all, that contributed to my conundrum.
And Jim....Keep your $10 US...since this would have been my next
exploration, and certainly makes good sense.
Again....Great group.
-Ed-
Ed Gaidies
Tel-Tek Electronics.
Ontario-Canada
teltek3@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
Sent: February 13, 2004 3:53 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: CTC197CD RCA
Ed, I have 10.00 bucks, (US) that says you have a bad CRT socket with a
scorched spark gap. You have to take it apart to see. If you have a very
small voltage on the wire from the fly, maybe 1.5 or 2.0 and zero on the
socket pin, that is the clue. Also with the wire from the fly
disconnected
from the CRT socket board the screen voltage on the wire will be normal.
**************************************************
Jim Myers
Since 1972
Telrad Electronic Services Co.
Fort Wayne, IN 46815
*************************************************
----- Original Message -----
From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, February 13, 2004 1:21 PM
Subject: [TechAssist] CTC197CD RCA
Would someone have a Manual on this set. Particularly the Sweep ciruit.
This set was originally Dead.
Replaced Flyback 237506, Got HV and sound back. But seems I have no
Screen Voltage. (Zero). So of course I have no raster. I have tried a
second flyback, thinking a faulty transformer, but same result.
A Circuit and any suggestions appreciated.
Thanks;
-Ed-
Ed Gaidies
Tel-Tek Electronics.
Ontario-Canada
teltek3@xxxxxxxxxxxx
------------------------------------------------------------------------
----
-
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
------------------------------------------------------------------------
-----
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
----------------------------------------------------------------------------
-
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
