Question about Toshiba 40H80 40" Rear Projection Television

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Toshiba 40PW8DB Rear Projection

Heard a small 'pop' lost picture and sound, but power is still getting to the set as the on/off standby light by the switch is still illuminated.

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The scan derived voltages are running ,not firing up the b+ voltages for remainder of the set to operate.pop migt have a cap ,ic etc. service required .

Posted on Apr 13, 2008

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Hi i have a sony kp-41ds1u rear projection which has lost picture and audio but the power light flashes on when pressed ? can it be fixed ?. It was turned on one morning but made a small pop sound and lost...


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Look at the hori output Transistor and right behind it feeding to output is a 2K volt capacitor Ive seen them with tiny burt hole in them,causing lost of high voltage,if it is OK then you either have Bad FBT or Bad STK ICs. STK392-110s Mats Has Parts for this set 1-800-628-1118

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Made a pop sound and lost picture


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1 Answer

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Could be convergence is simply blown and loading down the power supply... You could try testing the circuit if you have the meters and scope, I'd be glad to send you the service manual just drop me an email...
Bill
premtech@willapabay.org

PS: please remind me of the model number. I get more than 3000 emails a day and I'm over 50 - so I'll likely forget this post two hours from now... :)

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1 Answer

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You need to replace the lamp in this set. The "pop" you heard was the lamp popping.

Josh

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1 Answer

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