Question about Toshiba 50H72 50" Rear Projection Television

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Toshiba projection tv 50 inch

The tv turn but no sound no picture it is a 1997

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  • etgchange Jul 06, 2008

    Hi

    I have a Toshiba 50H72 and it was fine with no problems. Next day you could turn the TV on and the red power light goes on but no picture and no sound. Checked the PD0074 deflector board and found fuses F850 and F851 blown. I replaced them and again they blew.

    Any ideas of what is wrong?

    thanks, Ed

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I have TOSHIBA PROJECTION TV MODEL TZ50V51. While it was on all of a sudden it wnet blank. When you power, the red light lits and starts blikning with nothing coming on. Help please

Posted on Oct 03, 2008

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Need to test F470 and F850 for open.. Simple continuity to see if either fuse is open.. If F 470 is open replace it and C884 and if F850 is open you probably you may need to replace the two convergence amps STK392-110... Large black Ic's screwed on an aluminum heat sink...
Bill

Posted on Feb 03, 2008

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SOURCE: toshiba projection tv 50 inch

Something is preventing the power supply from operating:
Possible causes in order of likelihood:
1) Convergence amps failed overloading the supply (See if you can disconnect them)
2) High Voltage circuit has died. (Right on schedule since your TV is 10 years old)
3) One of the CRTs has shorted
4) The power supply itself has died (Is there a lot of dust covering it?)
See if you can isolate the failure by working down the list.
Hope Ya Fix it!

Posted on Jan 07, 2008

Maciso
  • 125 Answers

SOURCE: No sound

make sure the external speakers are not turned off

Posted on Aug 23, 2008

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1 Answer

Turned itself off. I turned it back on and the green power light blinks for awhile then blinks red for awhile.no picture or sound


Get rid of this TV. Had one and replaced the bulb and light engine many times. Just buy a Samsung or Vizio 50+ inch instead and be very happy. Those Panasonic projection TV's were terrible. You will find a 50 inch Vizio for around $500 bucks and it will blow your mind how great the picture looks.

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3 Answers

Toshiba projection tv 50 inch


Something is preventing the power supply from operating:
Possible causes in order of likelihood:
1) Convergence amps failed overloading the supply (See if you can disconnect them)
2) High Voltage circuit has died. (Right on schedule since your TV is 10 years old)
3) One of the CRTs has shorted
4) The power supply itself has died (Is there a lot of dust covering it?)
See if you can isolate the failure by working down the list.
Hope Ya Fix it!

Jan 07, 2008 | Toshiba 50H72 50" Rear Projection...

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Need the model number to help as I am not sure of you have a RCA or a Toshiba

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I have a toshiba 32 inch 1997 tv. When I turn32G90 it


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Theatre View Toshiba Rear Projection TV 50 Inch with no sound or picture and a red light keeps blinking


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No sound


make sure the external speakers are not turned off

Apr 28, 2008 | Toshiba TZ50V51 50" Rear Projection...

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

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