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Where is ac power supply board located? - Akai PT4298HD Rear Projection Television

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GO THROUGH TRACING THE MAIN CORD, IT WILL LEAD YOU TO MAIN BOARD, MOST PROJECTION TV HAVE 2 OR MORE BOARDS.....IF YOU ARE ABLE TO SEE BIG CAPACITORS HAVING 400V OR MORE VALUE, THATS THE ONE..CHECK OUT..

Posted on Oct 13, 2009

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Posted on Jan 02, 2017

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Replaced Main power supply,inverter board,Digital main on Emerson LC320EM1F but it doesn't turn on,except stand by red light


The power supply board is at fault. You have a shorted diode. Location of this diode is D639. Replace it with an NTE 5087A. The board you will fix, has the power AC cord attached to it! Thanks for asking, Matt of Martins TV.

Nov 23, 2013 | Emerson LC320EM9 32 in. LCD HDTV

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Where is My Philips 32pfl3505d f7 LCD TV fuses


I assume you are referring to the ac fuse, it is located on the power supply board. Just follow the ac power cord and it should lead you to it. If your set doesn't have a built in power cord, the fuse will be next to the power cord connector.

Sep 01, 2012 | Philips 32PFL3505D 32 in LCD TV

2 Answers

46RV535U 46 in. HDTV LCD TV where is the fuse


There are several fuses on the power supply board.

Usually the one that fails is not the main AC line fuse (which is close to the AC line input), but the PFC fuse located, you guessed it, next to the PFC regulator IC on the board.

When the PFC fuse is blown (measuring open) you also need to replace the PFC IC and possibly other components on the board. Most of the time the PFC is sufficient though.

Here's a link for repair service for the board:
http://www.coppelltvrepair.com/p/751/toshiba-46rv535u-power-supply-board-repair-service-for-dead-refusing-to-power-tv-or-faint-display-problem

Also search there for the TV model, we may have repair kits or exchange services available!

Hope this helps!

Jul 30, 2012 | Toshiba Regza 46RV535U 46 in. LCD HDTV

2 Answers

Phillips 32 inch lcd will not turn on


What is status of Led lights on front of set?

Mar 14, 2012 | Philips 32PFL3505D 32 in LCD TV

1 Answer

My HP D530C does not power on. The power LED flashes 4 times. What is the fault? Pls let me know asap. Thanks.


HP xw6200 Workstation - Diagnostic LED Code: Four Flashes ISSUE: When the workstation is powered on, the front LED might flash red four times, once per second, followed by a two second pause. SOLUTION: The front LED flashing four times is a sign of a power failure. To fix this issue, complete the following steps:
  1. Open the access panel, and check to see if the four-wire power supply cable is properly connected to the system board.
  2. There may be a faulty device. Locate it by removing all devices and then reinstalling them one at a time until the workstation fails. Replace the device causing the failure. Continue adding devices to ensure all are functioning properly.
  3. Verify the power supply functionality, as follows:
    1. Disconnect AC power.
    2. Remove all internal power supply cables from the system board.
    3. Plug in AC power.
      • If the power supply fan spins, and the BIST LED illuminates, then the power supply is good. Replace the system board.
      • If the power supply fan does not spin, or the BIST LED does not illuminate, replace the power supply.

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3 Answers

Fuse keeps blowing in my philips 32pfl3505d/f7 tv


Good day!!!!


That problem is cause of shorted bridge diode or power mosfet..

just see the picture below to see the image of bridge diode and power mosfet..

bugoy31_16.jpg

If you don't have a tools or you have no electronic background you only have to is order the new power supply board..

I hope this solution will be helpful..Thanks for using fixya....

Sep 04, 2011 | Philips 32PFL3505D 32 in LCD TV

1 Answer

Where is the power supply located in a samsung HLN5065W?


Follow your AC cord that plug into wall outlet it goes to Power supply board located on far left side up front . Whats wrong with your TV? Maybe I can help you.

Sep 24, 2009 | Samsung HLN5065W 50" Rear Projection...

1 Answer

Keep blow fuse on power supply board, viewsonic vx910


Replacing the fuse twice is OK but going beyond that doesn't make sense.
I don't know where the fuse is located in the circuit, AC input or some output point.
If it is the main AC fuse, the main power supply is probably faulty and one needs some experience to locate the shorted component.
If it is on the output side you have a shorted part and the above admonition applies; you need some training to know what you are looking for.
If the supply is on a separate board as is common, look for a part (assembly) number and do a search to see if there are companies offering repairs on that supply; if not, you may get stuck buying a new one and there is no guarantee that the supply didn't fail for a reason. You could have a 'downstream' problem that killed the supply.   

Oct 10, 2008 | ViewSonic VX910 19" LCD Monitor

1 Answer

Olevia LT23HVX 23 in


power supply board is the board where the ac cord plugs in .the . capacitors have numbers printed on board right beside them. there are three to change also check fuse on the board to.

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1 Answer

Location of Power Supply Board ???


the pwr supply board has the AC PLUG going straight to it!...and yes it has a transformer...and fairly large capacitors....but so does the x-board...and the y-board on a plasma

Dec 20, 2007 | Akai LCT2721AD 27 in. LCD Television

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