Question about Toshiba REGZA 42 in. Flat-Panel LCD HDTV

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No picture on toshiba 42" flat screen tv

Model 42hl67us has sound but no picture. Put flashlight to screen & think backlight is out ( i can see picture behind flashlight ). I have it apart, was looking for bad caps. or fuses. I don't have service manual but didnt want to throw it out without trying. Can someone guide in the rite direction? Please help

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Most likely you have bad light

Posted on Dec 22, 2017

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Definitely a blown fuse, you just need to locate it.
Look up the diagram for your make and model.

Posted on Dec 22, 2017

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Posted on Jan 02, 2017

Anonymous

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SOURCE: 42" Toshiba Plasma TV no picture or sound

My experience with 42" plasma tv's with no picture or sound was a missing power supply voltage. On the power supply board check voltages on the plug. The voltages should be marked on the board,

Posted on Mar 02, 2008

Anonymous

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SOURCE: TOSHIBA FLAT SCREEN TV has black screen but power light is on!?

Try resetting the TV by leaving it unplugged for an hour.
Plug it back in and check to see if it works normally.
If that doesn't work, rule out the Directv box by pressing the reset button near the access card. The box could be putting out a signal that doesn't have video or audio.
If everything fails, have the tech man come back to check everything that he did before you use the warranty on the TV.

Posted on Feb 20, 2009

Anonymous

  • 187 Answers

SOURCE: Green light but no picture, no sound

Your mainboard is damaged, replace it and that will solve your issue.

Posted on Jun 06, 2009

Jim Krause

  • 1779 Answers

SOURCE: 47inch toshiba lcd tv (HL167) black picture, but

Best to replace both at the same time . Yes they are easy if you can find the parts.

Posted on Dec 15, 2009

Chi Chu

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SOURCE: Toshiba REGZA 42

The 2 long boards call the LCD inverter boards are dead.These 2 long inverter boards help the LCD screen to have backlight to produced a picture.These 2 long LCD inverter board are dead,must be replaced to get a picture again.Tries websites like Shopjimmy.com,Ebay.com to buy these 2 refurbishes long LCD inverter boards for the replacement.

Posted on Jul 05, 2010

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1 Answer

I have sound but no picture


If it's LED or LCD then it's backlights-- just shine flashlight on screen at an angle and see if you can see any movement or bring up menu display and with a flashlight you should be able to see it---as stated above---
Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing inverter will solve the problem---ou cannot see anything at all then it's T-Con board--

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How can I fix black screen on Philips 42" LCD TV?


chances are it is cracked solder joint on internal board,
check link below, press the helpful button

http://www.repairfaq.org/samnew/tvfaq/tvtmmqcs.htm

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1 Answer

Have a toshiba 42" tv has sound but no picture how do I fix this?


Does your backlight turn on when you here the sound? If it does replace your T-con board. If you don't get any backlight, then you either have an inverter problem or a panel problem.

Mar 18, 2013 | Toshiba REGZA 42 in. Flat-Panel LCD HDTV

1 Answer

Sound but no picture


Show a flashlight on the screen from a safe distance. If you can see the picture, the backlights are off. The TV needs servicing.

Aug 21, 2012 | JVC 42 in. LCD TV

1 Answer

I have a 42 in magnavox 43mf439b/f7 tv. It is about 2 years old. i have no picture but i have sound. if i change channels the sound changes. I did a little research and i believe that i have...


You were smart to test the image for burned out backlights! :)
Typically, on a screen this size, the backlight inverter is the first place to look.
I found the part number...
27-D026774 Funai TV Module, backlight inverter, PNF10092, I420H1-16A0, 42MF439BF7

You can by it here...

http://www.tristatemodule.com/p-13231-27-d026774-funai-tv-module-backlight-inverter-pnf10092-i420h1-16a0-42mf439bf7.aspx

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1 Answer

Picture does not always come on, sound always comes on, when TV is turned on; some times takes as many as 5 cycles to get picture to activate.


Sounds like inverter boards or backlight boards are defective, there two of them in most Toshibas
and the master board usually dies. If when the tv is on and has sound look closely with a
flashlight shined at the screen you may see movement of the picture, as the screen is most
likely working, just no lights behind it.

Oct 21, 2010 | Toshiba 32C100U 32 in. TV

2 Answers

Comes on ,but no pic or sound.light blue screen. i think the blub is gone


You can tell if the bulb is out by powering up the TV and holding a flashlight to the tv. Put the flashlight close to the screen and see if you can see any picture. If you can see picture, then it's the backlight. If you can't see pictures it is probably a more serious issue and would likely need to be repaired by the manufacturer.

Feb 24, 2010 | Proview PA-32JK1A 32 in. LCD Television

1 Answer

47inch toshiba lcd tv (HL167) black picture, but


Best to replace both at the same time . Yes they are easy if you can find the parts.

Dec 15, 2009 | Toshiba REGZA 47HL167 TV

1 Answer

Screen displays no signal after a power failure; can hear sound, no picture


It's either the backlight lamp or backlight light inverter is busted due to the power failure.Here's how to determine which is which:
  1. Grab a flashlight.
  2. Turn on the TV.
  3. Shine the flashlight onto the screen.
  4. If you cannot see any display even a faint one, the backlight inverter is dead, else the backlight lamps are busted.
  5. Replace which ever is the culprit.

Sep 25, 2009 | LG 42LC2D 42 in. LCD HDTV

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