Question about Philips 201B4099 21 in.CRT Conventional Monitor

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Phillips 201B4 turns off 2 seconds after power up

On power up, no led, I can hear the CRT power up. Display on for 1 second, then shuts off. What can I checkj on the power supply?

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  • 60 Answers

First you need to check if your coputer it is powered on. try your monitor to other computer and other monitor to your computer to see where is the problem

Posted on Dec 10, 2008

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Posted on Jan 02, 2017

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It sounds to me that the monitors power supply is dying. I would replace it with a different monitor as soon as possible. I would consider this a dangerous situation, and a possible fire hazard.

Thanks for using FixYa,

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Vs-50609


Good Day, checho3435;

Look for fluid on the PCB's or check these items:

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source). Good Luck, big IRISH>

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TV turns itself off after a few seconds, no picture at all


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
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2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
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Hope this helps

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