Question about Quasar SP-2719 27" TV

1 Answer

TV picture blanks out, the restores

This is a CRT , not flatscreen TV. After it is on for a while,
suddenly the picture tube seems to go off. It goes black
and there is a tiny bit of light in the center for a split second,
like the power is being turned off. At the same time, the audio
remains, but diminishes slightly in volume. Then, after a few
minutes, the sound come back and the picture returns as well.
This problem repeats and repeats. Now that I am watching
it very carefully, I notice that in the fact the slight drop in
audio volume just barely precedes the blanking of the picture,
just by a fraction of a second. Any ideas? Thaks.

Posted by photon_3000 on

  • photon_3000 Apr 11, 2008


    Thank you for the answer. Is this something I can fix myself?

    How do I determine where exactly the problem is?
    The TV was recently moved and the problem started right after that.
    We were really very careful in moving it, but I suspect that that is
    what caused the problem. Does the fact that the audio volume level
    drops a little bit just prior the picture disappearing and that the volume
    level returns to normal just a split second before the picture reappears
    help to diagnose this in more detail? thanks.

×

Ad

1 Answer

rickz electronic repair shop

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 54 Answers

Your tv has a loose board problem, its either in main board or CRT socket.

Posted on Apr 11, 2008

  • I suggest that you refer it to a repairman tech.

×

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

We're the CRT located?

The crt or picture tube (cathode ray tube) is what you touch if you touch the picture as you watch tv. flatscreens have no crt
1helpful
1answer

Blurred picture

Is it a tube TV or a flatscreen? If it is a tube then it is possible to correct this, however I'm not sure what caused it. Take the back off the TV, and look for the flyback transformer. It is the unit with a red wire coming out of it, going to what looks like a suction cup on the tube. On the unit there should be a small knob labeled focus. Try adjusting this. If it is a flatscreen, sorry, I can't help.
0helpful
1answer

Ive got a 29'' tube flatscreen that wont work no more

seems to be an issue with picture tube.Please try after changing picture tube
1helpful
1answer

Screen goes black every few seconds but have a picture

Sony incorporates a video blanking circuit that blanks the picture out when the picture tube begins to get weak. sorry, but short of replacing the tube, there's no lasting solution to this problem. I used to have some success rejuvenating the crt, but I found that it didn't last but a few hours before the blanking circuit starts to activate again.
0helpful
1answer

Tv pictures suddenly goes dark blue

the tube could be going out. Do you have a warranty on that?
0helpful
1answer
0helpful
1answer

Rca 62" PROJECTION FLATSCREEN - COLOR PROBLEM/FLICKERING SCREEN

Sounds like the red picture tube could be shorting internally which would cause the "all red" condition. In which case you'd have to replace the red tube. Are there horizontal (slightly slanted) lines through the picture as well when this is happening and a very very bright screen? If so it's most likely the tube.
0helpful
1answer

Sony KV-20FS120

You need to replace its Picture Tube (CRT). Its CRT's defect.
0helpful
1answer

Sony kv32s42 trinitron color tv blinking

sounds like a bad picture tube. Picture and bright settings cranked up for a good pic? Test/rejuv with a crt tester and/or look at the Ik signal on the crt board. A good tube has 3 small pulses during blanking. The crt cathodes are checked with these pulses, pulses too low and the jungle IC will blank the drive. If the picture fades in and out I would check the filament ckt but that doesn't support the "blinks"
2helpful
1answer

Sony kp48s35 (rear projection tv)

You need to have the crt px tubes checked for heater to cathode shorts, a picture tube restorer is needed to refurbish one or all three tubes to restore balance to tubes. Sony has a px muting built into the circuitry to save the tubes from being destroyed. If one tube is conducting more than one of the other two the imbalance is detected and causes picture (px) muting... blinking on & off the picture. Most repair shops have this crt restorer on hand.
Not finding what you are looking for?
Televison & Video Logo

141 views

Ask a Question

Usually answered in minutes!

Top Quasar Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76804 Answers

 Grubhead
Grubhead

Level 3 Expert

5720 Answers

Brad Brown

Level 3 Expert

18829 Answers

Are you a Quasar Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...