Question about Sony KV-32S20 32" TV

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Picture flashes slowly off and on

When tv is turned on picture flashes slowly off and on,then more rapidly,then stops for a while.

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Re: picture flashes slowly off and on

I had the same problem, if you have a bit of electrical experience and soldering, you connect diodes from R,G,B out to IK in on main board...let me know if you are interested.

Posted on Dec 10, 2007

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I have a Sony Trinitron about 7 yrs old. The picture is flashing on and off. The sound is constant. The flashing was happening about the first 5-10 minutes after turning it on then it would stop. Now its...

Hi there
Sorry to be the one to have tell you that but yes your tube is dying.
In sony tv`s the video(picture) is off until the tube has warmed up and now that it is getting weaker it has difficulty reaching the point where it will bring out the video.
If you want to clear that problem for a while , you can open the back of the set.
You will see a round transformer(flyback) with two controls on it and a thick red wire that connects to the back of the tube.
With the tv on turn the lower control up slowly , you`ll see the brilliance go up and that will help with the flashing picture for a while.
If you see lines across the picture when you adjust that control it is because you have reach the max the tube can take , just turn it back down until they disappear .
Hope this help have fun

Jan 07, 2010 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

Flashing green light

Did you try this yet

If the TV will not respond to either the remote control
or the front panel controls and/or will not power Off,
press the SYSTEM RESET button with a pointed item
like the end point of a paperclip. The TV will turn Off
and the TIMER light will flash quickly for about one
minute. When the TIMER light stops flashing, you may
turn on the TV again. Changes you made the last time
the TV was On before you used the SYSTEM RESET
button may be lost, however, the changes you made
previously are not lost.
The green light is a multi-function indicator. This light
will flash rapidly for about one minute each time the TV
is plugged into the wall electrical outlet, when power
is restored after a power failure, or using the SYSTEM
RESET button. Do not attempt to turn on the TV again
during this period. Wait for the flashing to stop and
the light to turn off, before attempting to turn the TV
on. While the TV is powered on, the light illuminates
steadily. If the TV has been programmed to turn on
automatically using the Timer feature,

Sep 21, 2009 | Mitsubishi WS-65515 65" TV

1 Answer

Watching tv when the picture went black and now the green on light flashes for 30 times and turns off

A green flashing light for this model of TV indicates that the lamp cover is open on the TV.
  1. Unplug the power cable to the TV.
  2. Remove the 2 retaining screws on the lamp cover with a Phillips type screwdriver.
  3. Remove the lamp door completely from the TV.
  4. Remove the two retaining screws on the lamp case.
  5. Lift up the fixed wire handle of the lamp.
  6. Pull out the handle slowly and remove the lamp case.
  7. Insert the new lamp gently into the correct position. Make sure it is inserted correctly.
  8. Using a manual Phillips screwdriver (Do Not use an electric screwdiver), tighten the screws you removed in
    step 3.
  9. Replace the lamp cover and tighten the cover screws.
  10. Plug in the power cord and turn on the TV. After the initial warmup period (which may take up to several
    seconds for full picture brightness), the TV should operate normally.
If any of the following conditions exist, turn off the TV, unplug the power cord, and repeat steps 1–9 to ensure that the lamp unit and lamp unit
door are installed correctly:
  • The lamp indicator flashes green.
  • No picture
  • Dark picture
  • TV will not turn on
If, after repeating steps 1–10, the problem still exists, call Customer Service at 1-800-631-3811.

Aug 31, 2009 | Toshiba 44NHM84 44" TV

1 Answer

Picture blinks on and off on my Trinitron Color TV, KV-35S36

My Trinitron Sony Television flashes off and on constantly and has horizontal lines.

Aug 31, 2008 | Standard (CRT) Televisions

1 Answer

Sony Trinitron KV35V35

Could be a weak Picture tube . You can try turning up the screen control but don't turn it up too much you'll get retrace lines in the picture . Turn it alittle at time until picture comes on then turn it down until the retrace lines go away . Then try turning the tv on and off to make sure it comes back on. Be careful you can get shocked if you do this while it is on and you touch one of the circuits . The control is on the flyback or the module thats on the picture tube it will say screen by it . If this does not work you could have vidoe problems or just the picture is no good . Good luck

Jan 20, 2008 | Sony KV-35V35 TV

2 Answers

Screen/Picture Flickering

alo all..

i got problem wif my TV... sony wega trinitron 29inch..

- last 2 night... the TV @ screen slowly lost color for 2-4second... and after that it suddenly turn off for 5-10second and turn back on itself. the led blink 3-5times....

what the problem to my TV?

Jan 09, 2008 | Sony KP-46S25 TV

4 Answers

Picture Flashes off and on

probably the tv has a loose solder in the board. this is normal especially when tv is aging. most of the components inside are emitting heat resulting to loose the solder. try to inspect and resolder if possible. but if you dont have the proper tools and equipment and you're not inclined with this kind of job, better bring it to a qualified tv technician. good luck!

Jan 31, 2007 | Sony KV-32S45 32" TV

4 Answers

Tv flashing

I could be wrong, but, from your description it looks like a cold solder, most probably in the Filament Heater circuit. If you are well versed in Solid State Electronics, I suggest you look for a loose solder or joint. Shut OFF the TV, Open the rear cover and chech for any dry dolder or loose coonections. Start with the CRT Neck PCB. Follow the tracks from the two Heater Pins (Marked H H) on the base). Also, gently remove the Neck PCB gently from the Picture tube, and (very carefully, mind you!) clean the Picture tube Contact Pins. Again, very slowly and gently, replace the PCB. Try your TV again. Let me know if the problem is solved. As for the second problem, ( less brightness) how old is your TV? Over time the emission from the Picture tube Electrodes becomes less, and picture quality detoriates. If set is over 6-7 yrs old, or if you are a heavy user - that is, you have your TV switched on for 6-8 hours a day, it is time to go for a trade-in. But, if you are very attached to the TV, you can always take it to a service shop, where they will re-condition the Picture Tube for a modest amount. It's life will get extended by a couple of years.

Sep 14, 2006 | Sony KV-35V35 TV

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