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Burn transistor of toshiba projection tv

Pls help me model no 43ph14p

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Posted on Feb 03, 2008

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Hi all. i got 1 toshiba led tv 32pb10e problem DOUBLE IMAGE WITH DISPLAYED RED N BLUE COLOR ONLY ON SCREEN . I TRIED REPAIRED SINCE LAST NIGHT BUT CANT . PLS HELP ME IM URGENTLY NEED REPAIR IT . TQVM


The old projector TV's are using 3 lamps for Red Green Blue....in your case the Green lamp stopped working....either the Green lamp burned or the lamp board is defective.

Mar 31, 2016 | Toshiba Projection Televisions

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Red power button blinking but tv won't power on


chec your ic register diode and transistor.
aslo check poer supply waltage and earthing properly.

Oct 11, 2008 | Toshiba TZ50V61 50" Rear Projection...

4 Answers

10 yr old TOshiba rear projection ultravision 55inch screen shrinks vertically (top to bottom about 15 inches) when first started, when hit it sometimes goes back to full screen.


This sounds like poor solder connections at the vertical IC. If this is corrected soon, there will be no other problems. If left as is, the IC will eventually fail. If you can solder, you can fix this yourself. Look for a small flat IC with about 11 pins attached to a heat sink. It will be marked LA7837 or something similar. If you post the model number, I can give you the exact part marking.

Kep me posted.
Dan

Sep 08, 2008 | Projection Televisions

1 Answer

The tv keeps turning itself off and on. It is a Toshiba 46HM94P


Probably a lose connection, Cold soldered, Power supply need to replace or check some parts are already defective like capacitor and resistors that change value or your horizontal out circuit have problem on the out stage like the transistor and capacitors or burned resistors. Send me picture then I'll instruct you where can you find them

Aug 14, 2011 | Toshiba Projection Televisions

1 Answer

Picture went off while watching toshiba projection tv.


The projection TVs use a bulb that will get progressively dimmer (hardly noticible) and then one day just burn out. You need to get the model # of the TV and source a replacement bulb and change it.

Hope this helps,

Thanks!

Jan 20, 2010 | RCA Projection Televisions

1 Answer

Where can I buy an STR-4525 transistor for my Toshiba Rear Projection tv?


That is a drawing number for the IC itself. I will need the model of the TV and the location number for that IC to be able to look up the Toshiba part number. The location number will be silk screened onto the pc board where it came from.

Dec 02, 2009 | Toshiba TP55G60 55" Rear Projection...

1 Answer

Toshiba shuts dowm


pls .check your tv power cabel pin and plugg bitwin sparked or luss canaction [pls unplugged cabel pin and see tv. power cabel pin on top side black spot.]
pls try power cabel properly canact if loose replace with new.
NOTE:most of tv poblum is making power cabel loose. so canacting tv power cabel or power bord check with electrician

Oct 08, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Picture problem


Aside from the parts you mentioned check the vertical connection to the yoke (usually yellow and green wires), it may have a cracked solder joint or it could be burned. Also check the yoke for a broken vertical winding.
If the line is yellow with no other colors you may also have a bad color gun or drive transistor. If all color guns are working the line should be white.

Mar 14, 2008 | Projection Televisions

1 Answer

1997 Toshiba 50 inch tv


Sounds as though you have a filter capacitor bad in the power supply. I strongly suggest you have it checked and repaired soon, before it burns up a transistor or regulator. The cost may be a bit high now, but will escalate to possibly a complete power supply board. If you can repair your own set, check the main power supply filter capacitors. Good luck. I hope this has helped.
Ed
NC Electronics
Mills, Wyoming

Feb 18, 2008 | Toshiba TP50G50 50" Rear Projection...

1 Answer

Model 55X70 Toshiba Projection tv


dont know about warranties but horizontal lines means your horizontal frequency which runs about everything has drifted off sync and if too high or low it will activate shut down circuits in high voltage and power suppy, even causing HOT transistor to short. good luck and call a tech.

Sep 01, 2007 | Toshiba 55HX70 55" Rear Projection...

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