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Sony_Trinitron TV problem!!!

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ranatungawk

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Im using old “Sony_Trinitron_KV-2192M3” TV. Since last few days, I found some channels are very unclear or no pictures at all ( see pic 1 to 3 ). Some channels which I watched very clearly (high gain ), can barely watched with shadows (see pic 4 & 5). However I didn’t find any other problems such as “screen width issue issue”, “power off issue”, or TV function problems. So I did following things :

Antenna connection (RF) directly connected to the Tuner unit ( BT-EG201) - problem remain same.
Tuner was removed from the mother bored and all DRY joists were re-soldered. - problem remain same.
Motherboard was re-soldered - problem remain same.


Could you please give me a advice on fixing this ? what should I do next ?
 

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Those are probably scrambled channels there are several different types of systems that once were commonly used from inverted video to missing sync pulses.
As you had stated "on same channels".

jer :)
 
Check mains filter electrolytic cap before the SMPS. Looks like hum bars on the last 2 pictures.
 
or, as I answered you on another forum a very crappy TV signal poor, damaged coax or antenna and or connectors

the severe ghosting in several of the pics indicate a multipathing signal

Dave
 
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