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How do i determine if my ballast board or capacitor is bad in my toshiba hd tv model no 57HM167?

Unit tries to power up but no picture comes on. lights blink yellow and then blue with blue remaining on and yellow lights blinking. have tried to replace lamp twice with no luck

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The chances of the ballast failing are small on this model. Count how many times the Yellow light flashes before it pauses. Then google 57HM167 and the amount of blinks. ie " 57HM167 Yellow light flashes 3 times" That will tell you what you need to know. You can also post it here and we can help. I suspect you have a stuck fan(the fans are monitored to see if they are spinning. If not, they will not allow the TV to start up). Or you have the cover for the lamp not installed all the way. There is a switch that the lamp cover activates and the the TV will not turn on without it secured.

Posted on Apr 02, 2015

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TV comes on, but, no picture, no sound


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

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1 Answer

Horizontal lines and no picture or sound after approx. 5 minutes


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

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1 Answer

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Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

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1 Answer

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There is a ballast which drives the lamp--a hint would be to try to be in a position if possible to see if lamp ignites at all or even for a moment.

The ballasts do fail but rarely----it develops about 12,000 plus to the lamp and is much like spark plug wires as far as rf.

Some checks would have to be made and then the ballast priced--google the model number with ballast after it to get and idea.

No cut and dried solution here--several possible causes.

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1 Answer

Jvc hd-52g886 wont turn on


Hi!
That's a clear indication that you have a bad power supply in your TV.
If you know how to DiY...I suggest you open your TV. Locate the power supply section, it is where the end of the power plug is connected. Replace all blown or bulge or leaked capacitors with same value. That will fix your TV problem.
The hardest part is to disassembling your TV cover, cause you will need to pry off the snap in lock at the edge of your TV.

Power supply board should look like this. Examine the capacitors in the board
power%281%29.jpg2_23_2012_11_31_16_am.png

After replacing blown capacitors...it should work again.
caps%281%29%281%29.jpg

Things you will need.
1. A plastic flat end screw or any object with flat ends....to fry off the cover
2. Soldering iron.
3. Soldering lead
4. Soldering pump.
5. Flat and Philip Screw
6. Replacement capacitors (of same value with the blown one) that you can buy to any electronics store.

Hope it helps

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have the same tv,, power light blinks, book said it was bulb, bulb didnt fix it,took it to tv repair shop, they found a bad capacitor, replaced it with a higher heat range capacitor, this capacitor was on the power board for the lamp circuit, repair was $200, not bad since i paid $1500 for the tv, other than that issue, just replaced a couple of lamps

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1 Answer

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U hear alot of clicking,when power on to the tv?Yes,the ballast board,that the board that help to ignite the projection lamp is dead.The Ballast board is dead.Change the Ballast board.

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1 Answer

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board just follow the wires from where lamp plugs into.
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1 Answer

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1 Answer

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