magnavox crt tv dead


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magnavox crt tv dead

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regent
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Sep 3, 2015, 6:54 PM

Post #1 of 8 (1285 views)
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magnavox crt tv dead	Can't Post

I have an old Magnavox TV that’s completely dead. It worked in the morning but when I tried it later it was completely dead. I have much newer TV’s but wanted to try to fix this one as a project. Maybe its to far gone to try. I do have electronics training but in industrial products. I do not have the schematic. The fuse is good and there are no visible signs of where the problem might be.

Magnavox
Model TS2756C102
Chassis model 27E508-00AA

Thanks for you help

jts1957
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Sep 3, 2015, 9:33 PM

Post #2 of 8 (1277 views)
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Re: [regent] magnavox crt tv dead [In reply to]	Can't Post

Not polite to change forums in mid stream. Mad

I never asked YOU for a schematic.
I (or others) will ask for SAME things here as there.
You haven't found/checked 2nd fuse yet, because the two white plastic tabs are still hooked into the black plastic bottom/base, preventing the chassis from being released enough for you to see it.

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Location: Far, Far Away

(This post was edited by jts1957 on Sep 4, 2015, 1:23 AM)

regent
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Sep 3, 2015, 10:57 PM

Post #3 of 8 (1264 views)
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Re: [jts1957] magnavox crt tv dead [In reply to]	Can't Post

Thanks for the response. Prior to your response I did release the board from the base but I have not found a second fuse. I was looking for a glass one similar to the f400. Can you tell me what area of the board its on?

Sorry if you were offended by the forum change. Yes both were Magnavox but with completely different models so I felt it should be a new post. Also I am not asking for a schematic just some guidance to locate the problem.

jts1957
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Sep 3, 2015, 11:49 PM

Post #4 of 8 (1261 views)
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Re: [regent] magnavox crt tv dead [In reply to]	Can't Post

F401 = C-6

http://imgur.com/7nT4JQN

Quote

Magnavox TS2756-C102 - Dead

I know my eyesight is aging but: Lookith like the SAME Model number to me.

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Location: Far, Far Away

(This post was edited by jts1957 on Sep 3, 2015, 11:54 PM)

regent
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Sep 4, 2015, 12:29 AM

Post #5 of 8 (1253 views)
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Re: [jts1957] magnavox crt tv dead [In reply to]	Can't Post

When I search posts
magnavox tv dead returned 36 results
the one posted by Brentg,
Magnavox TS2753C103 help needed

Matched my symptoms but the model was different. This is the one I am referring to.

Thanks for the location chart. Will try to find it.

jts1957
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Sep 4, 2015, 1:38 AM

Post #6 of 8 (1247 views)
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Re: [regent] magnavox crt tv dead [In reply to]	Can't Post

Bear in mind that that may or may not be exact to your set.

Also bear in mind that we are only privy to your WRITTEN/POSTED words. We can't read minds.

You give symptom - we give location of bad part. On the newer sets, that might work down to board level.
On these older sets we should be able to troubleshoot to the exact part(s) that are defective.

We are here - You and your set are there. You have to be our eyes, ears, hands, etc. We ask questions, suggest tests and measurements - you have to make them and report back with the results. We may start out in one direction and then proceed in a different direction based on test / measurement results.
We know how to take these measurements. What function meter is set to, which range, where/how to place test leads, etc.

The time to ask for clarification is BEFORE taking and reporting measurements. Google can also provide 'how to test ____.'

-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Sep 4, 2015, 1:38 AM)

regent
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Sep 6, 2015, 5:07 PM

Post #7 of 8 (1221 views)
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Re: [jts1957] magnavox crt tv dead [In reply to]	Can't Post

OK

The second fuse is good

jts1957
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Sep 6, 2015, 8:48 PM

Post #8 of 8 (1219 views)
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Re: [regent] magnavox crt tv dead [In reply to]	Can't Post

Let me know if any Grid location or Part callout/number locations differ.
Some DC voltage readings (Use C432 -F10- negative/minus terminal for your black test lead - Tuner case will also suffice).
Raw B-plus (Both/Either end of F401):
Regulated B-Plus (Pin #4 of IC410 -E9-):
5 Volt Standby (Q410 Emitter -D7-):

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Location: Far, Far Away

(This post was edited by jts1957 on Sep 6, 2015, 8:52 PM)

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