Question about Toshiba 36A50 36" TV

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Vertical size of picture

The picture will be fine then a line starts flashing at the bottom the picture then the picture gets shorter vertically with a bright line at the center of the screen and some picture above that line

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You have a number of bad capacitors in the vertical circuit. If you can solder, you should be able to repair this yourself. I'll look up your model to get the parts needed.
Dan

Posted on Jun 03, 2008

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1 Answer

Picture adjustment


if your vertical section of your mother board has a vertical adjustment trimmer, adjust it to reach your desired vertical size..if doesn\'t have, increase the resistance of the resisitor only connecting from cold ground to the negative of the e.cap and the positive pin of e.cap connecting to the line 1 of the vertical focusing coil. the common value of the resistor you would focuse is 1ohm, try add with .5 or 1 ohm depending with vertical size result.

Jan 03, 2014 | Standard (CRT) Televisions

1 Answer

Picture is fine for a few minutes then bottom rolls up to a flat line across ceter of screen


this we call vertical problem..pls resolder the vertical ic and check for bad capasitor in vertical area

Jun 06, 2009 | RCA F35731MB 35" TV

1 Answer

White lines at the top 3-4 inches of the screen.


well its all new now could be bad caps or vertical i.c. okay if you have a esr meter check around the i.c. for a leakey cap good luck

May 13, 2009 | Insignia NS- 27" TV27 TV

1 Answer

After a few minutes picture shrinks to single line on screen and then powers off


Since the set works initially, there are likely poor solder connections at the vertical IC. If this is not addressed soon, the IC will fail and need to be replaced. The vertical IC is a small flat IC with about 11 pins or so that may be marked LA7837 or something similar. Try resoldering the pins first. If that fails to resolve the problem, replace teh IC. Feel free to post the marking here so I can verify you have the correct one.

Dan

Jul 30, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Shrinking screen.


hi there, you do have a vertical section problem and at the power supply section problem. do some test, check for some cold solder at the power supply section, test some electrolytic capacitor at the vertical section. ty

Jan 01, 2008 | Standard (CRT) Televisions

1 Answer

Picture broken and shrinking


You need to change your vertical IC, along with some capacitors around the vertical IC. Capacitor with value 220UF, 10uf, 470uf and finally 1000uf. Doing this will fix the set. Total cost under $40

Best regards
Circuitcity

Nov 29, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

Sony kv35s66: No picture, just sound and red blinking


The most common problem (I have fixed lots) is the Vertical amplifier has developed a loose connection. It probably just needs resoldering. As things expand it makes and looses connection you picture goes in and out. The vertical chip is a large black chip that gets hot, over time it degrades the solder until a connection is damaged. Most newer sets have a protection circuit that senses the lack of height, and shuts down the picture tube to save it. When the picture dropped to a line on older TVs and left that way too long it would burn a line into the face of the picture tube. You then had to have the picture tube replaced along with the vertical amp. it's kinda like a screensaver for your TV.

Nov 21, 2007 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sylvania srt2232x vertical size


Before you replace any parts, have someone (TV service tech) check the vertical size settings in the service menu.

Happy viewing!

Toprol

Nov 06, 2007 | Sylvania SRT2232S 32" TV

2 Answers

Can only see half the picture


Locate Vertical Output device--replace w/OEM equiv.or better.

Oct 10, 2007 | RCA TruFlat 27F520T 27" TV

1 Answer

Partial screen picture


bad caps in the vertical section

Dec 14, 2006 | Quasar SP-2722 27" TV

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