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Connected to power red light flickering on and off it makes a clicking sound but won't start screen black

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Power supply board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Posted on Apr 23, 2010

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Flickering light and screen


The power supply may be failing.

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Sharp model lc-20sh1u won't turn on, just makes a clicking sound and indicator light flashes red.


The clicking sound may be a power relay coming on and then off--problem indicates a trouble in the main power supply.

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Proscan 40LC45S screen flickers, red light flickers, won't turn on


check bad component parts at the power supply board as will as burnt parts.

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Screen goes black but still sound


I have the model Philips 37PF7320A/37 won't turn on and MOST articles on the Internet say it's the Capacitors capictors capictors..I checked all of them. My tv just blinked red lights, had the clicking sound at first power on, but then goes black. No sound. No picture. Nothing. Just blinking red lights.

MINE WAS RESISTOR no. 3318 , a 100 OHM RESISTOR ON POWER SUPPLY BOARD.

I BOUGHT REPLACEMENT FOR .99 CENTS SOLDER IT, AND EVERYTHING WORKED!!!

THAT WAS ALL IT TOOK.

JUST A SUGGESTION..
1. CHECK FOR BULGING CAPACITORS (90 PERCENT OF THE PROBLEM)
2. THEN CHECK FOR RESISTORS WITH MULTIMETER ( FALLS INTO THE OTHER 10 PERCENT OF THE PROBLEM.)

TELL ME IF THAT HELPS..normanw1@yahoo.com

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1 Answer

The light on a fan is flickering. It doesn't appear to be the light bulbs. This fan has a remote control and it controls the fan OK and turns the light on and off but it flickers. What could be...


Try changing or testing the batteries in the remote or take the remote out of the fans range. See if this stops the flickering. It can also be the individual bulb. Sometimes the monofillament wires become loosened. It won't hurt the fan to use a broken bulb but it will shorten the life of the bulb. They do get the daylights shook out of them! If all the bulbs flicker it can be the twist connects. These are located under the ceiling plate cover. To check, shut off the fan or turn off the braker switch to make sure you don't get a shock (but I really doubt it). Remove the face plate ceiling screws to expose the wiring. There should be a black and a red cap that holds wires together. Black is ground red is power. One at a time hold the wires of the black cap with one hand and give the cap a gentle clockwise twist with your other hand to see if they need tightening. Repeat with the other colored cap. Push the wires back up inside the housing if needed and replace the cover.
These are the simpelist things to try before calling an expert. I hope this helps?

Sep 22, 2011 | Vacuums

1 Answer

DX-PDP42-09 Won't power up. There is clicking for a few seconds, then led 2 starts blinking. The screen flickers and the red power light comes on. No picture, no sound. Which board do I need to...


Sir before replacing the board try to check first the power supply, this fault is commonly cause by bulging capacitor or leaky capacitor, this bad capacitor is producing a low and unfiltered dc output that causes your unit to malfunction.

ekcnoel_36.jpg
This is the bulging capacitor if you see this replace with the same type and observe polarity, capacitor is much cheaper than the whole power supply board replace this and it will fix the problem hope this help good day and best regards.

Sep 21, 2011 | Televison & Video

1 Answer

7000 PT will not start up (display flashes)


On that relay board their should be 2 lights engaged:
1.power 2.relay.
It sound like a loose connections there are 3 connections to the board first that I would look is the power connections to see if their is no broken wires, than the connector that goes to the display that may have exposed wires that may be grounding out on the frame and by jostling the connectors and see if either one stops the light flickering and relay clicking.Their can be also cold soldier connection on the relay board. Hope this helps

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1 Answer

Blank screen


its cheap buy a good one!!!!!!

Dec 22, 2007 | Computers & Internet

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