Question about Sanyo HT32744 32" TV

1 Answer

Tube gets power. has sound, no picture

On Analog tuner I can hear the channels but no picture also no menus. When shut off the tube powers down and shows a white flash at center of screen

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  • Anonymous Nov 30, 2008

    same thing with me i have a 3 way spliter for my cable to the tv.

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  • Expert
  • 252 Answers

Maybe the CRT socket hasa problem try to change it

Posted on Oct 16, 2008

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When i turn on tv it blinks 7 times no raster and on sound you can hear the high voltage goes up to the picture tube and then stop


  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
You have a power regulator fault and it shuts down to reduce the X radiation from the tube.
Check the 135Volt line!

Dec 24, 2010 | Sony Televison & Video

4 Answers

Shutdown after video comes up the green power light stays on but the set will not shut down while changing channels. (philips 27 pt543s) ic702 eeprom and ic7200 control/signal processor has been...


Re:"shutdown after video comes up the green power light stays on but the set will not shut down while changing channels."

Hi.

I do not think this has anything to do with logic circuits and video processing. When you stay on one channel the horizontal and vertical alignment circuit works more than if you change channels all the time.
This is just a guess, but have a look at convergence ICs. when you keep changing channels the power amp ICs (or transistors) go on and off, if one of them is defective it will overheat and shut down.
Other possibility is an internal tuner failure. Also test using a DVS or VCR.

Nov 01, 2010 | Philips 27PT543S 27" TV

2 Answers

I can't program my tv to regular antenna channels


You can program to regular (analog) antenna channels. To do so you must use the original remote which has a TV/DTV switch in the top right corner of the remote. Choose the appropriate mode for the type of channel you want to see or scan for. Here is a link to the owners manual and a picture of the remote swithc. The info on the signal switching is on pg.13.
http://tv.manualsonline.com/manuals/mfg/funai/cr130dr8.html?idRes=707655

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Oct 27, 2010 | Durabrand DWT1304 13" TV

1 Answer

Philips 32pw9617 crt no picture on analog channels but sound ok


this is your tuner board faulty replace tuner board hope this helps

Mar 26, 2010 | Televison & Video

1 Answer

No picture at all,sound ok 3 tube crts off after 4secs when on


might be a crooked flyback transformer, first check for shorted transistors around the transformer and components at the horizontal output stage..

Mar 31, 2009 | Philips Televison & Video

1 Answer

I think my picture tube is going out on my Zenith System 3 Tv


Hi, Sorry it took someone so long to get back to you, but nobody likes to give bad news. This tv has a 1.7R tube with 530 resolution and an NTSC tuner which means it is analog and with the new change this month you would need a converter box anyway unless you have cable or satellite. Because of this particular tube and the labor to change it, it would indeed more expensive to replace it than buy a new one. Best of luck to you!

Jan 24, 2009 | Zenith C27A24T 27" TV

1 Answer

Projection TV keeps shutting down


Good Day;

Sounds like you have a bad green picture tube that has failed. To check this out; remove front speaker grill, remove small panel, you will see three CRT's (pictue tubes) sticking down, remove the little board on the middle tube then restore power. If TV stays on more then likely the CRT is bad but not always the driver on board could also be bad, check voltages.

Good Luck, big IRISH.

Sep 05, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

No picture, but power light is on


THE POWER SUPPLY OF YOUR TV WAS THE PROBLEM,YOU COLD SOLDER THE MAINBOARD OF YOUR TV,AND THE CRT SOCKET CONNECT TO THE TUBE IS ALSO COLDSOLDER,.

Mar 13, 2008 | RCA 27F530T 27" TV

3 Answers

No picture or sound


It sounds more like a shut down circuit problem if you can feel static from the face of the picture tube after it tries to start up. There are several things that can trigger a shut down condition on TV's. For instance, if there is no vertical deflection signal present, the set may shutdown to prevent a permanent line being burnt across the front of the tube. If the power supply wasn't regulating the B+ voltage properly, it would shutdown to prevent damage in the horizontal sweep section. Or if the horizontal deflection circuit was defective and allowing the high voltage to climb too high (say above 33,000 volts) then the sensing circuit would trigger a shutdown event. If any of the above sounds like gibberish to you then you will need to take the set to a professional for repair.

Nov 24, 2006 | Sharp 36U-F810 36" TV

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