Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Rectangular Screen Tube Televisions

Notices

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #16  
Old 12-08-2007, 09:53 PM
zenith2134's Avatar
zenith2134 zenith2134 is offline
VideoKarma Member
 
Join Date: Feb 2005
Location: UTC -4
Posts: 2,546
Looks alot better now!

Turns out that the service switch was intermittent, not dirty but actually losing conection to the board! Never saw that before. Maybe it got bumped during a move once? Don't think I did it, because I was ultra-careful with it.

So the switch was actually adding green intermittently when I touched it. I blew out a lot of dust and resoldered it down good The grayscale is amazing now, really low hours on this tube.

It amazes me because first of all, RCA's crts from this time weren't notorious for reliability, let alone after 27 years. Also, the rest of the set appears very well-used, lots of dust, with slight brown-darkening around the chroma-out's and flyback. Just to be sure, I redid the soldering around them too.

You guys are very correct that this was a good set, I am impressed with the heatsink on the H-out, it looks like a vintage stereo amplifier output!

So far it has been a great daily bedroom set, I have only turned it off when I was out of the house, and it truly has a stellar picture.
Reply With Quote
  #17  
Old 01-16-2008, 08:11 PM
zenith2134's Avatar
zenith2134 zenith2134 is offline
VideoKarma Member
 
Join Date: Feb 2005
Location: UTC -4
Posts: 2,546
Thought I'd add a followup

In the past month with the ctc97, I resoldered the red circuit on the kine driver board. Also was having a severe blooming issue with moderate contrast levels so I replaced 2 small caps in the power supply. Only thing wrong with this tv is that the horizontal is slightly off center.

Odd part, though, is that the service sticker points to horiz positioning stakes, but they appear to be missing from this set! Anyone remember the '97? I mean, I had the thing totally apart and for the life of me could not find the positioning pots, stakes, or anything else! Either way heres a few shots of the old workhorse.

Last edited by zenith2134; 03-25-2009 at 04:18 PM.
Reply With Quote
  #18  
Old 01-17-2008, 12:10 AM
wa2ise's Avatar
wa2ise wa2ise is offline
VideoKarma Member
 
Join Date: Dec 2002
Location: USA
Posts: 3,147
I had a CTC101 back in the 80's. Looks quite similar to your 97. It had a comb filter and an IR remote control. It also had fake stereo sound. And also had the notorious flyback transformer that would fail and take out the horizontal transistor with it. Seems that there were only 3 high voltage rectifier diodes inside the flyback, instead of the 6 orginally designed. It was a warrenty nightmare for RCA back then. Mine worked for about ten years until the flyback blew, then it got tossed.

It was a nice set, be nice to find one.
__________________
Reply With Quote
  #19  
Old 01-17-2008, 01:49 PM
zenith2134's Avatar
zenith2134 zenith2134 is offline
VideoKarma Member
 
Join Date: Feb 2005
Location: UTC -4
Posts: 2,546
Man, thats a cool looking set. So far i've only used ctc-89, ctc-97 and ctc117's from this time. I found them all, and all worked with minor issues. Cool picture, thanks
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:27 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.