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Few horizontal lines with sound

November 13 2007 at 2:10 PM
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  (Login brianfstoltz)

I have a Hitachi 43FDX20B that has sound, but no picture. It only shows a few groups of horizontal lines (about 10), and you can see the individual red, green, and blue lines in each group.



I have a lot of experience with electronics and replacing parts, but I have never worked on a TV like this before. I'm looking for a copy of the schematics so I can start checking to see what's wrong, but any advice would be greatly appreciated.

Thanks for your help.

Brian

 
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AuthorReply

(Login brianfstoltz)

Re: Few horizontal lines with sound

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November 13 2007, 11:27 PM 

Sorry that picture is so big, it was taken with my phone, and didn't appear that big on the image hosting site.

I get this same few horizontal lines on any of the inputs, and I only have it plugged into the Antenna A input. However, I only get sound from the input that is connected.

I think it might be vertical control and possibly convergence, but I'm not an expert at this. But I do have a ton of experience with soldering electronic equipment, resistors, capacitors, transistors, chips, etc., just no experience fixing TVs, but I would love to learn more.

I appreciate any comments and help anyone can give.

Thanks,

Brian

 
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eufrey magan
(Login nhoy_mags)

Re: Few horizontal lines with sound

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November 14 2007, 2:56 AM 

replace the jungle IC

 
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(Login brianfstoltz)

manual

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November 16 2007, 5:32 PM 


Okay, I found a service manual online with schematic (I hope) and it should be here in a few days. I will check the Jungle IC. Any other thoughts as to what it could be, or something else I should check?

Also, why do you think it's the Jungle IC?

Thanks for your help, I really appreciate any and all advice I can get.

Brian

 
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(Login frank2007)

Re: Few horizontal lines with sound

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November 17 2007, 5:07 PM 

Rase g2 at the fly back,also Check caps and resistors near the fly

 
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