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Zenith 25DC56 console TV acquired!
Well, it all worked out. I went to that estate sale today and picked up this Zenith for a whopping $20. It's got its problems though. There are numerous wiring problems involving the flyback and the tripler. The CRT socket is also melted. Other than that, it's not too bad. It has the original tube which is a 25VBQP22. I do like this TV quite a lot. I plugged it in for a few seconds - there is audio, but no HV.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 03-12-2017 at 06:53 PM. |
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Quote:
Congrats on the pickup!
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Game Room TV's: 1997 RCA Colortrak 27" Console 1987 Zenith 19" V3912W |
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About three hours later, and I finally got the set cleaned up. If two words could describe the set as found, they would be HEAVY and DISGUSTING. It's still heavy, but cleaning it up made a world of difference.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 03-12-2017 at 06:53 PM. |
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Here is the 25DC56. If you look near the flyback, you can see some loose wiring and on the tripler there is some very thin wire that's barely holding on.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 01-30-2017 at 05:05 PM. |
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That is a good looking set and it looks like new after you cleaned it! Good luck restoring it and I look forward to seeing your progress.
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Audiokarma |
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Thanks, Radiotronman. I'm going to call up my friend Danny and ask for his consensus on the melted socket and no HV. I'm really looking forward to watching this set. I've been wanting a delta gun Zenith for quite a while now.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 01-30-2017 at 05:05 PM. |
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Yep they are as ever. When i had a service call it was to an apartment and seams like it was on the top floor. if I had to take it back to the shop for bench work i had to take it down 4 or 5 flights of stairs. they are greats sets loved them they were and still are the best chassis ever. <y back harts thinking about it lol. i happy for you good luck with it.
if i was you i would find and spare Tripler and focus divider. |
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Oh boy. If I had to carry this thing down five flights of steps, I'd find another job. By the time I got it to the truck (with the help of two other men,) I was exhausted. And I'm 6'5".
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 01-30-2017 at 05:05 PM. |
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On the socket pic the melt down is at the focus pin(9) and on the flyback pic i see 2 of the nasty white 22-5001 safety caps, check them 1 or more or open to cause that kind of damage to the socket. Check H.O.T.,damper diode, video output transistors and video driver transistor to start. When the safety caps open H.V. skyrockets also check the CRT as it may be ruined. Hopping for the best,Tom
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Thanks for the information. I really hope the CRT is still good. What I'll probably do is replace those blown caps and replace the CRT socket. That much I can handle. Anything more than that and I'll probably need help. I'm going to the radio club this Saturday - I was told that there are some CRT testers there that they want to get rid of.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 01-30-2017 at 05:05 PM. |
Audiokarma |
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this will be an easy restore for you.a little solder here and there and your in business.dont worry,crt will be like new
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I sure hope so. I don't have a test pattern generator to do any convergence or purity or anything. I'm going to take a look at those capacitors and replace them and replace the CRT socket, and hopefully, I'll be in business.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
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I've been informed that you have to replace those white safety caps with proprietary caps. I didn't know there was a such a thing as proprietary capacitors, but OK. I'm taking the chassis down to the radio club this weekend to give it a thorough cleaning.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
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They are 22-5001 Zenith OEM. If you cant find them check with findemkeepem (sp?) he can point you to the RIGHT substitute. You can use almost any socket. The only difference in Zenith sockets I ever found is lead length & push on connectors. The tripler has been changed & focus divider deleted. If you change it back USE OEM. IIRC the divider is NOT the common 800-616 kit. Check with someone with a parts book for subs. IIRC its 63-9898 but its been years. Here is the scenario... One or more caps opened & the HV & focus went up. That caused the socket to arc, the divider to crack or melt then finally the tripler to burn or open. A butcher moused the set but left it with bad caps so it happend again. Now odds are the tripler is gone again. 73 Zeno |
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I talked to Danny yesterday, and he told me that he had some proprietary capacitors he would give me the next time I go over there. I'll guess I'll also replace the tripler. Anyone know the part number of the tripler? Do y'all think the horizontal output transistor is still any good? I checked my tripler inventory, and I have four of them. ECG533, ECG534, ECG535, and ECG550.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan Last edited by TUD1; 04-29-2016 at 08:29 AM. |
Audiokarma |
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