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Sony KV-32TS20 Vertical sync intermittently goes out. Especially when warm.

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Change the vertical IC and all he capacitors near them

Posted on Jul 17, 2009

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SONY T.V. MODEL KV-25ST12 4TIMES BLINKS STANDBY


Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505. Check the vertical output IC, especially to the solder terminals for any loose soldering points. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to see the latest updates. It will make search easy. There are more than 1350 posts to different brand TVs now. Pull up older posts there.

Nov 30, 2012 | Televison & Video

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When i try to turn on my sony kv-27fs12 keep turn off and blink 4 time a red led make a pause and keep blinking 4 times, what that could be?


Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
Vertical sweep failure. Check all the solder terminals to vertical output IC. If it do not help, replace that IC.

Jul 03, 2012 | Sony KV-27FS12 27" TV

1 Answer

My 12 year old Sony Trinitron KV-32XBR200 still works pretty well except that it cuts off about 25 - 30 scan lines at the bottom of the screen when cold, then gradually improves somewhat to missing only 15...


No,tv have cold solders inside the tv like vertical IC or around the area.Have a soldering iron,a roll of solders,also know how to do basic soldering?Yes.Take the tv aparts,take a back plastic of the screw driver tabs all around the main pcb,will see the vertical changes,take out the a/c power sourced,resolders those area,will fix this problems.

Feb 10, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

I have a 1999 32" Sony KV-32S45. Picture comes


Hello, Sorry to hear you are having problems with your Sony TV. The problem you are describing is a pretty common one being the slow collapse of the vertical circuit. This tv is know for having bad solder connections and the picture tube developing an internal short. Luckily for you it is a problem with cold solder joints, and when you straightened up the components, you temporarily made a good connection. You need to get someone to re-solder any and all bad /cold solder joints especially around the vertical circuit area making sure no solder bridges are formed during the process. Make the tv is unplugged before starting to do the repairs!
Good Luck! Rich L.

Dec 04, 2010 | Sony KV-32S45 32" TV

1 Answer

My color went out on my sony kv-32ts20\r\nif u shake it sometimes it comes back on.


the circuit board has a short, take to a repair shop and ask them to solder the board, do not continue to shake it may short out completely

Jun 11, 2010 | Televison & Video

1 Answer

I have a Sony KV-27S36 purchased mid to late 90's. I suddenly have sound but no picture. At first, I could get a picture by turning it off and on and letting it warm up, now I cannot even do that. ...


yap! That sound vertical problem! just solder all old parts in vertical section and check yoke if have mold? Check all looking old's electrolytic capacitors and change that if nothing happened tha'ts the time to change vertical IC.

Sep 24, 2009 | Sony KV-27S36 27" TV

1 Answer

Sony KV-32TS20 speakers


unpllug tv
remove back cover
speakers are all the way inside. under the picture tube

Jan 04, 2009 | Philips TS2744C TV

1 Answer

Son Trunitron


You have bad solder connections on the vertical output integrated circuit. Since now nothing helps either the solder connections have become very bad OR the vertical output integrated circuit finally failed from the intermittent condition.

Feb 27, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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