Question about Sanyo DS31590 31" TV

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Sanyo tv not working correctly

At first the tv wouldnt turn on, now it does and the screen is darker and there are black swirly/wavy lines all over it.

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1 Answer

Split screen, kind of inverted w/white wavy lines


It is a calibration problem, let me see if I can find some schematics for your tv.

Jul 19, 2008 | Panasonic CT-32SL14 32" TV

1 Answer

I have the Hitachi 53FDX20B Manufactured in October 2002. It had the convergence problem where the upper left corner was a mixed up coloring and kind of a wavy line that didnt move. Color correction...


You need to replace both of your convergence ICs STK392-110s
use 120s Mats has them 1-800-628-1118 Check Low ohm resistors near ICs 1.8ohms 3.9ohms 2.7ohms etc... RK48 RK50 RK54 RK58 RK60.
On front of convergence board is a blue contact switch this is how you enter convergence pattern R/G/B to adjust convergence,
you can remove Front bottom panel and see the contact switch from front of TV With TV on Press and release then Pattern should come up. When you call Mats ask if they have Convergence Kit that has ICs and resistors in it!

Sep 26, 2010 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Tv stays black


Do you have audio and if so can you change channels to hear other programs? If so ...you have a bad vertical IC. Have a tech turn up the screen control to see a white horizontal line. By your question I would say this will correct the problem.

Jul 26, 2009 | Sanyo DS27510 27" TV

1 Answer

Pictures goes to distorded wavy lines.


This could be attributed to tuning reception of your tv. If your using antenna only, it is most probable. If cable, check your line.

If this is a crt type, moving that tv with that size could somehow bend its circuit board. Loose connection is a probability. Could be some minor component is detached from solder. This can be attributed to tuner and vertical IC.

Just for an input.

Apr 20, 2009 | Sanyo DS27910 27" TV

1 Answer

Black line


the screen is burnt inside,/crt replacement to correct or ignore

Jan 15, 2008 | Toshiba 32AF43 32" TV

1 Answer

Screen is a darker black on one side compared to other side


this is a light engine problem and it is a recall for toshiba. Call them and they need to give u a new light engine.....even though u will have other problems after they do that.

Oct 21, 2007 | Televison & Video

1 Answer

36" Sanyo Tv


My television has wavy lines running from corner to corner it is due to power supply fileration is not proper. this might be due to your main filter capacitor.please take the help of tech person. Is this fixable or time for new one. it is fixable & not a major problem. no need to buy new one. good luck.

Oct 07, 2007 | Sanyo DS27224 TV

1 Answer

Tv screen waves and is double


No. You have bad convergence output ic;s and probably at least 1 burnt resistor. This liely will have to be reconvergec in the servcie menu after the aprts are changed.

Jul 12, 2007 | JVC AV-56WP30 56" Rear Projection...

1 Answer

Sanyo Flat Screen (DS27910) "Grey" Screen


dont know for sure but i think that the tube is going bad. Have one in my shop doing almost the same thing.Taped on the tube and it does strange things. My tube tester wont test this kind of tube that is in these sets.Not much help but it is a start.

Sep 17, 2006 | Sanyo DS27910 27" TV

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