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I have a toshiba 37hl67u the thing has sound and the screen lights up and has sound but it has no picture I have took this tv apart no bad caps or circuits that I can tell how do I check the screen it self or what else can cause it?

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  • Master
  • 8,617 Answers

The TCon is usually the cause of that issue. You can get a TCon board from www.tvrepairworld.com

Posted on Nov 09, 2012

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: i have a toshiba 32hl67u lcd tv

I had same thing happen recently on same model. Turned it on one night, light came on in screen, briefly saw info bar at top, then nothing. Cannot get picture, volume or menu. Each time I turn off and turn on the same thing.
Any solution to this appreciated.

Posted on Jan 02, 2009

javswr
  • 44 Answers

SOURCE: No Picture & No sound. Red LED, Green LED, Red LED.

If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Posted on Feb 28, 2009

  • 453 Answers

SOURCE: TV just shut off....

nop , u may need the g board , for this repair u need a tv tech to do the job

Posted on Jun 04, 2009

  • 8457 Answers

SOURCE: My Polaroid FLM-2601 will power on to the point

U have to replaced the whole power board,because the cap that install backward,it cause ur power ICS regulator are dead.U can't buy those ICS,because the tvs compannies only sale thesse ICS only to their sub contractors.

Posted on Mar 16, 2010

  • 308 Answers

SOURCE: Bad backlight inverter on 42" RCA LCD

Does the backllght go out after a few seconds? Could still be a lamp or something else on the inverter boards. You could try used inverter boards from the same set with other problems (broken screen), Or a complete working backlight from another set but very delicate operation to swap the LCD display from one panel to another.

Posted on Apr 03, 2010

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37" Toshiba TV (37av50u) no picture no sound?


Boards:
http://www.shopjimmy.com/catalogsearch/result/?q=TOSHIBA+37av50u

You need to check the DC output voltages on the power supply DC output connectors first.
http://assets.shopjimmy.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/f/s/fsp1884f05.jpg


Please read my guide to get some understanding.
Basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 17, 2011 | Toshiba Televison & Video

1 Answer

Re:toshiba 55h70 tv i unplugged the tv to paint. when i plugged back in a wk later i have no picture or sound. nothing. can't access the menu - completely dark screen. the red lite "on" button...


I would check the fuse on the main board. Check the Capacitors on the Power Supply board. Seeing that you unplugged it and replugged it in you might have bad caps that were weak to begin with. Please learn how to safely work on a TV before attempting . Even when a tv is unplugged it has enough power to kill you. Discharge all Capacitors first. make sure its unplugged of course.

Jan 06, 2011 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 42WP56T TV made a crackle sound then lost picture. Sound works but no picture except small pixel like image on corner of screen What happened can I get replacement part?


More often than not, this is caused by faulty sustain boards. I would like you to take off the back cover and observe for faulty caps on the two boards labelled X-main and Y-Main. The electrolytic caps(will be cylindrical in shape and will have an X mark at the top)caps will be bulged, cracked or blown off if they are bad. If its ceramic caps you are bound to see some burn marks on the board near them. Look for any other signs of evident damage, and if you find any replace both of the sustain boards(should cost you around 150-200$) as these boards usually take out one another when they go bad.

Dec 23, 2010 | Toshiba 42WP56 42 in. EDTV-Ready Plasma TV

1 Answer

Bad backlight inverter on 42" RCA LCD


Does the backllght go out after a few seconds? Could still be a lamp or something else on the inverter boards. You could try used inverter boards from the same set with other problems (broken screen), Or a complete working backlight from another set but very delicate operation to swap the LCD display from one panel to another.

Apr 03, 2010 | Vizio VW32L 32 in. LCD HDTV

1 Answer

No picture on my Toshiba 42HP66 plasma tv.


I too have this problem with no help from hh Gregg, where I bought the tv, and no help from Toshiba. I resorted to calling the BBB and complaining about the defective workmanship. I took the tv, which is less than 2 years old, apart and found the y-sus board, behind the y-sus board is a foam rubber spacer to seperate the circut board from the backside of the screen. I think this pad is designed to prevent heat buildup in the y-sus board. The pad itself is held on by glue and that glue melted causing the y-sus board to short out. I noticed this after finding a tacky substance behind the board. The heat from the plasma screen melted this and also the pad itself. Toshiba claims no resposibility because the tv was out of warranty. Thanks Toshiba.

Jan 22, 2009 | Televison & Video

1 Answer

No Picture & No sound. Red LED, Green LED, Red LED.


If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Jan 14, 2009 | Akai LCT2660 26 in. HD-Ready LCD...

1 Answer

I have a toshiba 32hl67u lcd tv


I had same thing happen recently on same model. Turned it on one night, light came on in screen, briefly saw info bar at top, then nothing. Cannot get picture, volume or menu. Each time I turn off and turn on the same thing.
Any solution to this appreciated.

Dec 20, 2008 | Toshiba REGZA 42 in. Flat-Panel LCD HDTV

4 Answers

When I Turn on my toshiba 32AV500U there is sound but no picture


The problem isn't with the lcd panel, its with toshiba not willing to sell the backlight master or slave inverters seperately from the panel. If you check either the master or slave will have a blown 5 amp fuse, ussually 2 or more transistors inline with the transformer will be shorted.

Nov 16, 2008 | Televison & Video

1 Answer

No picture only sound, Toshiba 36A 36" TV tube type


my friend if you open the tv carefully look to see if the tube itself has light, or if you have high voltage i coulbe many different things.wish luck!!



caypianan@yahoo.com

Aug 10, 2008 | Toshiba 36A50 36" TV

1 Answer

Toshiba 32AF42 Poor picture quality


TRY ADJUSTING THE SCREEN CONTROL ADJUSTMENT AT THE BOTTOM OF THE FLYBACK TRANSFORMER.THIS SHOULD REMOVE THE RETRACE LINES AND ANJUST THE HASY LOOK TO THE PICTURE IF NOT YOU HAVE A BAD CAP IN THE SCREEN CIRCUIT .LOOK FOR A 10MFD/250V CAP IF FEEDS THE NECK BOARD ATTACHED TO THE PICTURE TUBE 200V DC.

Jun 22, 2007 | Toshiba 32AF42 32" TV

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