Sony convergence issue


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Sony convergence issue

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Cuong-Nutz
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Dec 11, 2011, 9:13 AM

Post #1 of 4 (9254 views)
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Sony convergence issue	Can't Post

Hello everyone! New here but not new to to the whole forum spill. Anyhow, I'm working on our old Sony KP-53S35. I know it has a convergence issue but need your opinion and expertise. I pulled the board out but do not know how to disconnect the power wires so I can take the board home with me (at parents out of town). When I pulled the board out I notice an area on the board that looks burned. I am not familiar with electronic terminology so y'all will have to help me. Would the burned? parts be the cause of the convergence issues? Our tv was repaired a long time but the issue has occurred and we stopped using it. Now I want it to get working again.

The power wires are the ones in red and attached to the board in the far left.

Here's the IC DOODADS:

Here's the burned portion:

The 1M1714 thing appears broken:

Backside of burned portion:

The picture is bowed with the center in alignment but goes out of alignment away from center. How the picture looks from the inside:

What parts and where can I get the parts to get the the working again?

jts1957
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Dec 11, 2011, 11:04 AM

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Re: [Cuong-Nutz] Sony convergence issue [In reply to]	Can't Post

Looks more like a spill.
Take some rubbing alcohol on a Q-tip (NOT used) &/ or a used toothbrush and see if that makes a visible difference. Will be easier to read part locations.

Those are HV and focus/screen wires and how to remove them is shown in the service manual Pg 25: http://elektrotanya.com/...sm.pdf/download.html

Convergence ICs are IC809 & IC810 STK392-110. Replace both at same time. Use Genuine Sanyo parts. Use fresh heat sink compound. Also: check the bias resistors.

MCM Electronics, Ebay if you feel daring.

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Location: Far, Far Away

Cuong-Nutz
New User

Dec 11, 2011, 1:47 PM

Post #3 of 4 (9249 views)
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Re: [jts1957] Sony convergence issue [In reply to]	Can't Post

Hmm. It broke off pretty easy.

jts1957
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Dec 11, 2011, 7:13 PM

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Re: [Cuong-Nutz] Sony convergence issue [In reply to]	Can't Post

Spilled material may have eaten through its leads. Frown

So it was made the 14th week of 1997 ... showing other side will give ratings.

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Location: Far, Far Away

(This post was edited by jts1957 on Dec 11, 2011, 7:16 PM)

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