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  #1  
Old 05-09-2023, 10:12 AM
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zeno zeno is offline
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Rusty part on right is a power transformer. May have been for isolation
or it was used with a non US power standard. Its odd. Other big rust
area is the tuners.
Looks like cabinet front is OEM & the rest home made.
Would have come in many cabinet styles.
Looks like a ready plug was used. That would be for an antenna switcher
or stereo decoder BUT it looks like a stereo board is built in.
Models probably start SC27## or SD27## or SD27##

Zeno
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  #2  
Old 05-09-2023, 12:43 PM
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Quote:
Originally Posted by zeno View Post
Rusty part on right is a power transformer. May have been for isolation
or it was used with a non US power standard. Its odd. Other big rust
area is the tuners.
Looks like cabinet front is OEM & the rest home made.
Would have come in many cabinet styles.
Looks like a ready plug was used. That would be for an antenna switcher
or stereo decoder BUT it looks like a stereo board is built in.
Models probably start SC27## or SD27## or SD27##

Zeno
If the power transformer (and perhaps also the tuners) are that rusty, I would be very wary of plugging the TV into AC power. That these components are extremely rusty would indicate the TV was or had been in a flood, rain, or other wet environment for quite a while and is not safe to use, unless of course it was dried out for hours or days before being plugged in.

BTW, if this TV has a built-in stereo audio board, it must have been fairly new (newer than 1988). The local NBC affiliate in Cleveland, WKYC-TV, channel 3, went from mono to MTS stereo sound in 1986, IIRC (the station was an NBC O&O at the time). I don't know when NBC-TV stations elsewhere converted to MTS stereo, or whether the Cleveland station was one of the first NBC affiliates to do so. I remember well when NBC went to MTS stereo, as the sound was less than perfect for quite a while, at least on the Cleveland station. I could tell the station was testing its MTS stereo equipment because the sound on my TV would become distorted, and would cut out every 15 minutes or so during a network broadcast.
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Last edited by Jeffhs; 05-09-2023 at 01:00 PM.
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  #3  
Old 05-09-2023, 02:27 PM
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It's very dry. Nothing gets tested until then. These seen much rain but it's been awhile since. Since it's completely dead and nothing coming in before main board, should I replace transformer or?
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Old 05-12-2023, 03:47 PM
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Took main board out to get better look. Is there anything here that I need to check before I test after I figure out the transformer?











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  #5  
Old 05-12-2023, 04:29 PM
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You have nothing to loose. Cant tell for sure but it looks like
the main fuse is zorched. If so strip the set. So much water damage
odds are near 100% its sayounara for the set.
Use it as a guinea pig & dont put a penny into it.
BTW I looked for the Sylvania manual I dont have it sry.

73 Zeno
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  #6  
Old 05-12-2023, 04:34 PM
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Quote:
Originally Posted by zeno View Post
You have nothing to loose. Cant tell for sure but it looks like
the main fuse is zorched. If so strip the set. So much water damage
odds are near 100% its sayounara for the set.
Use it as a guinea pig & dont put a penny into it.
BTW I looked for the Sylvania manual I dont have it sry.

73 Zeno
LFOD !
Actually fuse is good. I looked at the image I took.a shadow was cast on it making it look dark but it's good. I really don't want to give up on it or any other that I have. My goal is to save them and I've actually got a lot of caps, resistors, etc. So I'd probably spend mere change other than a triple for the Sylvania
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