Having problems with your Projection Televisions ?

Toshiba Model # 42H81 Power Light comes on No picture. No high voltage. Found shorted Horizontal Output Transitor. Replaced transistor. Still no picture.

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What is DC voltage on "C" of transistor at turn on?


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Toshiba Model # 42H81 Power Light comes on No picture. No high voltage. Found shorted Horizontal Output Transitor. Replaced transistor. Still no picture.

What is DC voltage on "C" of transistor at turn on?SD TECH ... Toshiba 42H81 42" Rear Projection Television

I have a problem w/ my 29 inch tv, the horizontal output was easily getting hot then after 5 mins of observation the base, emitter & collector becomes shorted, i found out that one of the transistor is already leaked but i don't know what was the exactly replacement of this transistor dd3852. kindly solve it for me pls. thanks & God Bless

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At first,It blown the horizontal output tr. in sec right after I switched on, and I found that cap. c424 was short cct.,so I replace it, tv now works, can see a normal picture, but only last about 5-10 sec , then switched off by itself and stay in stand by mode. I can switch on again but turn itself off the same. I've got no clue now.

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I had 3 horizontal black lines on my samsung pn50c450b1dxza. i replaced the y buffer board. there was no picture but still sound. when i put the old y buffer board in the picture works again, but still with the horizontal lines in it. is the new board i ordered defective? or is there another problem?

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I have Hitachi 65f710 projection tv, that has no power, I found a thermal fuse open in the power supply, I replaced that; the Tv came on but has no hi voltage, the tv has b+ but not at HOT hight voltage transistor. what else you think can be done. Right now I have no picture Thanks

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SONY TRINITON KV-32XBR15 The picture has collapsed on the left and right horizontal plane. This problem causes an " Horu-Glass" picture/raster display. I have checked for cold solder joints in the Horizontal and Flyback transformer areas. I resoldered every suspected joints. The problem still exists. The Flyback transformer shows a low voltage of 21VDC, it must be 28VDC. Please let me know any sugestions, tks

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I have a Model HLT5055WX/XAA that will turn on, but shortly after coming on the picture goes out. Audio still works but picture goes out and the lamp turns off. I think i need to replace the lamp but am not sure.

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Hi guys am Suteka from Leeukop I have a Sansui TV model no:SV2918 The output voltage is 143V it keeps blowing the Horizontal transistor, How can I reduce this voltages I checked dry joints as well as swollen capacitors and some diodes all seems to be just fine. I will greatly appreciate if you may help me

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LG LED 42LE5300. We just bought this TV last week. When we first installed it, we noticed uniform horizontal tiny lines on the picture. We tried to change the cable box, use high res. HDMI, even tried playing blue ray disc on it, but still had the lines. We were going to return it, but one evening, we turned it on, & it was clear, w/ no lines. We thought that was it, a few days later, the lines are back. What can we do to fix it? Or do we just need to replace the TV? We're very disappoint

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DP42746- no picture no sound C5040 shorted and replaced and still same

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Horizontal output c5885 and diode #817 keep on shorting out when replaced

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Hello, I have an Orion STV2763a with a solid line of white across the screen with about 2" of static below it. Found the LA78041 Vertical deflection IC to be bad, replaced it and d418 and d419, two 33 volt zener diodes and C414 [email protected] capacitor. still same issue, checked my voltages into the IC and are as follows. Pin 1 should be 3.9 v, varies from 2.4 to 4.6. Pin 2 should be 26v, is 29 to 31v. pin 3 should be 2.2v, is 2v to 3.2 v, pin 4 is ground, and has 0 v. pin 5 is vertical output, should

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My TV turns on shows picture but shortly later cuts off. During the time while its on I can change channel, inputs but I get no sound. I took panel apart and found a blown bulb. I changed the bulb and still the same issue. First I was getting 13 blinks and after replacing 1 bad bulb it only gives me 8 blinks. Please help me solve this issue and fix my TV.

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Set came in with shorted hor output transistor. Standby B+ is 180volts. Other supply voltages close to normal. With 60watt bulb for load the B+ is 142.5volts.

\015\012\015\012\015\012\015\012\015\012\015\012\015\012\015\012\015\012"Set came in with shorted hor output transistor. Standby B+ is 180volts. Other supply voltages close to normal. With 60watt bulb for load the B+ is 142.5volts." (sic) ... Flat Panel Televisions

I have jvc av32150 the horizontal transistor is defective replaced it but after 2 minutes black out again

Check and replace its LOT {Line Output Trasformer}. It is faulty. ... JVC AV-32150 32" TV

Hello sir, i have a L.G television ,is blowing the horizontal output..so i decided to change the flyback transformer. But still is still blowing the horizontal output

The problem has been answered a few while ago. ... Standard (CRT) Televisions

Replaced the lamp in my Optoma Rd50 and the screen still reads that I need to replace lamp also T.v still having the same picture problem as before replacement lamp? what else could be wrong?

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No picture, good sound...replaced both main inverter and slave inverter and still no picture.

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