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PSM217-404-H-R psu problem

2 Dead popped capasitors on main board: C124 and C126 470uF 16v Replacement did not fix. PSU making a hissing noise near the transformer when plugged in. No power what so ever. Once turned on a white screen. (usually blue for no signal / idle) Noticed badly darkened part on soldering side of the PSU. Item verification number Q601 item barcode: D F / R W. No idea what part to look for.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: main board dead

Sometomes does not show display

Posted on Jan 15, 2008

  • 56 Answers

SOURCE: psu shut down

99% TIME IT IS A FAULTY FAN GOING OUT.

REPLACING THE FAN INSIDE THE POWER SUPPLY WILL RESOLVE THE PROBLEM.

P/S ARE CHEAP, JUST BUY A NEW ONE OOR REPLACE WITH ONE YOU HAVE ON HAND

CANDYMANGANDY

Posted on Jan 27, 2009

  • 11 Answers

SOURCE: No picture on N3250W viewsonic

I just had a viewsonic supply all apart with a blown capacitor, I believe c36. q7 a surface mount npn transistor on the solder side of board was shorted. Replaced cap and transistor, set works fine. Also, check all your electrolytics on this board as they sometimes swell and go bad.

Posted on Jan 28, 2009

jell587
  • 447 Answers

SOURCE: PC will not power up

Check that the ram memory hasn't come unseated from the mobo. If you are using an above board video card also check that it is properly seated as well.

The clicking noise from the PSU is kinda perplexing though...

Posted on Mar 01, 2009

  • 1684 Answers

SOURCE: ViewSonic Vx924 No power

Hello,

If youcan take a picture or two of the boards in your system as close and clear as you can and go to our web page and email them to me I will check and see if we can help you find the problem.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Aug 14, 2009

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1 Answer

Our tv when itis on for a while some times the picture freezes an then goes blank an a loud hissing an squeech sound we have to unplug it to turn it off.


Hissing sound normally from Power Supply unit(PSU), usually from Transfomers in the PSU. Usually caused by bad capacitors. Try this capacitor replacement kit, on ebay only $15. http://www.ebay.com/itm/Repair-Kit-RCA-L32WD22-LCD-TV-Capacitors-/230637983468?pt=LH_DefaultDomain_0&hash=item35b31856ec

Could not find any PSU board available at the moment, but have tried that kit and it works.

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When I put my PSU on the ON position, it makes no noise, but when I turn it off, it makes a hissing noise and does the same if I unplug it. It was bought two weeks ago and made noise when I first used it,...


if its only 2 weeks old should and its brand new be under warranty

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Hi, have a philips 42pf7321d/37 tv that won't turn on, I replaced 2 capacitors that were bad but when I tried to turn it on again two leds on the power supply turn on making a clicking noise they stay on...


Hi.

The clicking noise and the leds on mean that there is an incorrect voltage value detected from the main controller board. When this happen we say that the main controller is forcing the PSU to standby, sending the set in protect mode.In protect mode only

The PSU can be tested bridging the low voltage control lines that are turning the higher DC volts from PSU on.

The procedure to test the PSU is illustrated in the following article. I wrote the article for LCD, but the procedure is more or less the same on your plasma. Simply disregard the part on inverter (plasma work in a different way and have no inverter or backlight system) How to test an LCD TV or monitor PSU

Bridging the voltage lines is a repair suitable for an experienced technician. If you are a DIYer, better testing the resistors and components near to the faulty capacitors by reading Ohms to check if they have continuity. This operation is done with power not connected.

If you need to replace the whole board, here the part number: POWER SUPPLY UNIT LJ44-BLAH101C PHILIPS. The part is temporarily out of stock, and may be available ordering from Philips.

Here the service manual:
PHILIPS Chassis EP1.1U AA Service Manual.

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2 Answers

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Hi,
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1 Answer

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Have you verified that the PSU is OK.

DO you have a voltmeter?

Check the voltages on the main connector to the board

HERE is the 24 pin ATX connector

HERE is the 20 pin ATX connector

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Post back results and I will try to assist furher

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