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#16
07-05-2015, 12:46 AM
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I had the 24" 18C24Q Space Command console for a long time. Beautiful set, but hard as I tried in the classifieds, nobody would take it. I saved the chassis, tuner, and remote sub chassis if anyone has needs. Just let me know. Parts like new as was the set for the most part........
__________________
"Face piles of trials with smiles, for it riles them to believe that you perceive the web they weave, and keep on thinking free" 
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#17
07-07-2015, 11:35 PM
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That sucks^^^
It'd be nice if mine was a 24".... Anyway's I ran the set for an hour tonight, watched All in the Family on antenna. Took note's on operation of the set and things I want to improve apon/eliminate. Got a few issues i'll write about in another post. Also plan to modify it a bit. I saw on Phil's site, an article about adding AV jack's(RCAjacks). They give the best image, sound, and make it easier to hook up some video game systems.  Also want a shut off switch for the tuner when using an AV jack, to conserve some power.(if possible)
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#18
07-08-2015, 01:04 PM
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If you can find a video injection point where the circuit wants the same amplitude and polarity of video that the Composite standard provides let us know (a lot of Zeniths with that chassis design survive today)! You may need to add a low-pass filter to remove the chroma signal to prevent dot crawl or get the signal from the monochrome pin of an S-video jack or the green jack of a component video trio.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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#19
07-08-2015, 10:38 PM
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Quote:
It was found in near mint condition with very little vertical sweep, no sound or video, and only a volume adjustable hum coming from the speaker. Not one bit of improvement after all the work done made me put it to the side for a long time. I yanked the chassis one final time and did find an open coil in the video detector circuit, but that's all. As well that go round I disconnected the wires to the vertical output transformer and checked the windings. Never found a problem there. The CRT didn't come out with the chassis, so I never did a proper voltage check. I needed one of those test CRTs, but it just wasn't meant to be I guess. New woman in the house cost me a few electronic gadgets and that was one of them. Again, if you ever need parts I have them...... 
__________________
"Face piles of trials with smiles, for it riles them to believe that you perceive the web they weave, and keep on thinking free"
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#20
07-11-2015, 12:42 AM
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^^Huh, something was off.... Sound's like something could've been screwy in the power supply but, IDK. I would of been stumpt as well.
 Ok (about the part's) Honestly I doubt I'll need any though, unless my flyback is actually f'd up and keel's over Quote:
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#22
07-14-2015, 05:23 PM
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Quote:
I scanned it for you and submitted to the ETF. Send me your email if you would like me to fwd it to you.
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#24
07-16-2015, 11:45 PM
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This may be a stupid question to some of you but... Can I tip this chassis over on it's side with the crt still on it, or is it greatly recommended that I take the CRT off? I don't want to take it off. But this is the largest i've ever dealt with so far, and I don't want to stress the tube much by putting on it's side, if it's an issue.
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#25
07-17-2015, 09:51 PM
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I've worked on them on their side before. The two things to watch out for are loose CRT mountings (if it can move relative to the chassis in any way the neck could snap), and the 5U4 melting a hole in the rug I was working on top of. If that VCR your parting out still puts out good composite video (either from the tuner, mech, or passed through the inputs) then use it as the video source...If you accidentally fry your test video source it is better if it was a junker unit.
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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Anyone got a schematic scanned for a 16D21Q...
Linear Mode
