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Replacing ballast board

Hi! My VPL-CS4 powers on intermittently - every 2-3 weeks. In researching the solution I read your answer to the problem "LED won't come on and only faint hum is heard". How does one replace the ballast board? Got any suggestions?


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I want a ballast board part number 913700808905 EUC120P/H11 where can i get one its for a samsung dlp tv

Posted on Jul 28, 2009

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Ballast board is difficult to obtain better ask good service center for help.

Posted on Jul 08, 2008

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That's interesting.. After researching that model I can tell you that it has an intergrated internal power supply(transformer) which does contain a fuse. It is located where your power cord plugs into, inside the unit, start with that. Was it plugged into a surge protector? When you had the power failure the second time was there a fluctuation of power, ie your lights in your house flickering on or off or increasing, decreasing in brightness? This will help me determine if it's something else. Also be sure to check your power cord, look for any kinks, breaks, chips in insulation. Anyway Good Luck

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My sony projector vlp-cs4 is no power on... Please how to do?


hi,
check the power cable first. also check the power at the wall out let. if all ok, the ur projectors smps power supply have some problem. check the same if found faulty replace it. for any assistance feel free to contact through fixya.
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Dec 26, 2010 | Sony VPL CS4 Multimedia Projector

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JVC DLP MOD#HD55G466 what is the voltage from power supply to ballast and into the lamp.I have no voltage to the lamp could it be ballast?


Hi,
Ballast board gets voltage from power supply connector CN90BL and volts readings are as follows:
Pin-1 = 380V DC
Pin-2 = Ground
Pin-3 = 15V DC
and output of ballast board would be 12,000 volts AC that goes to lamp to generate spark in its electrodes to produce high bright light.

If you get volts on input of ballast board but still lamp does not fire up then ballast board is not working.
Ballast board part number is QAL0765-001 and available with tv-part.com for $125
Hope these info will help you.
Thanks.

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1 Answer

The tv picture goes out


Sounds like the ballast has gone out. Samsung recommends replacing the smps board(power supply board) when you replace the ballast because it is the smps that takes out the ballast. replacing just the ballast ,machine may work ok for a short time but will destroy the new ballast fairly quickly.

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1 Answer

It won't turn on. The TV has been intermitant for a about a week.


Hi.

Try first leaving the TV disconnected from power for several hours. Also test on a different main, eventually using an extension.
If the problems started intermittently last week, then there is probably a fault.

If there is no power at all it is a faulty power supply.
If the TV instead is in standby, then the set must be tested to find the fault.
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RCA HD50LPW42 Shuts Down after 30 mins


Well it seems you may have an issue with your ballast that it's losing the energy it used to have , but we would need more info for a more accurate answer about this, discountdashmerchantdotcom

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4 Answers

VPL-CS4


Projector on Standby, press RESET, <<=, ==>, ENTER to reset lamp timer.

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3 Answers

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Hi there

Replacing the lamp won't make any difference at all.

If you have checked the fuse on the Powersupply Board and it tested ok , then the whole Board will need replacement.

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1 Answer

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Hi there

Your Projector needs a new lamp and do remember to reset the lamp timer after replacing the lamp .

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