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Old 02-26-2023, 04:42 PM
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timmy timmy is offline
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Quote:
Originally Posted by Chris K View Post
I'm building Bob's design. Waiting for the resistors. I think all I need to do is move the AC line from pin 6 to pin 5. I have 10 of the "Littlefuse" in the appropriate size for this TV. Bob's design incorporates a CL-90. Will that be enough to protect the TV from the surge?
CL-90 yup it will.
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Old 03-02-2023, 04:59 PM
Chris K Chris K is offline
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I built Bob's design for the replacement ballast but the CL-90 hasn't arrived yet so I bypassed it with a jumper and brought the TV up slowly. I'll solder it in once it comes. The image on the picture of the screen is not what it looks like. The bright area in the picture is spread out in a 3-4 configuration across the entire screen face. There's no video signal through the IF as before but there's audio.

My next question is does the electrostatic tube and focus in any way affect the installing of jacks for composite video? I'm not giving up on solving the IF issue but I'd like to know if that's an option.
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Old 03-03-2023, 12:50 AM
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TV-collector TV-collector is offline
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Quote:
Originally Posted by Chris K View Post
I built Bob's design for the replacement ballast but the CL-90 hasn't arrived yet so I bypassed it with a jumper and brought the TV up slowly. I'll solder it in once it comes. The image on the picture of the screen is not what it looks like. The bright area in the picture is spread out in a 3-4 configuration across the entire screen face. There's no video signal through the IF as before but there's audio.

My next question is does the electrostatic tube and focus in any way affect the installing of jacks for composite video? I'm not giving up on solving the IF issue but I'd like to know if that's an option.
Hi,
I follow your poor story since a while.
Do you have any signal tracer?
They make it easy to find trouble sections in radios.
Try one (see safety instructions when working on life chassis) to check the video amp
and IF-section.
Do you have a clean sound from a "TV station", means a DVD or VCR?

Regards,
TV-collector
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Scotty, beam me up, there is no more 4/3 Television and AM radio in Germany!
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