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Need cct diagram or can I buy a new power supply pcb for a Philips 20PF4121

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  • caution23 Aug 01, 2008

    Hi

    Inverter board DAC-12MO19 AOF 3139 128 77613 REV 05



    Thanks

    Mike

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May have psu for this model please let me know no`s.on psu board.before it went completely did you have sound but no picture?
may be able to suggest solution if this is the case.SUPER8.

Posted on Aug 01, 2008

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Hi! i have a philips 20pf4121/05 flat tv.it won't turn on and green light is flashing few times and that s it.do you know how i can fix the problem?


Not likely to be a do it yourself repair. From the model number it is a 20 inch and if the power supply board is bad may not be economical to fix not to mention quite often on the smaller sets parts do not exist.

Aug 29, 2012 | Philips 20PF4121 20 in. EDTV-Ready LCD...

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Hi, I have Plasma TV Power Supply Board. The model of board is: LJ44-00144A PS-506-PH. The stand-by voltage 5Vstb works just fine. When I turn on the TV the Stand-by let in front of it comes blue like...


I have the same problem. As I see, here is dead sub PCB with microcontroller on board. Small PCB with 26 pins, mounted verticaly on main, big power supply board. It is not available as a spare part. You must buy complete power supply board LJ44-001444A, as I have done.

Aug 09, 2011 | Philips POWER SUPPLY (41644158) Power...

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As soon as i plug in my 42' flat screen philips hd tv, it just starts making a clicking noise over and over!!!!!


It sounds like the relay on the power supply pcb. What make and model is it? You might want to check the power supply pcb capacitors to see if there are any that are puffed up. To do this you need to place the tv face down on a padded surface that will support the whole tv. This is to protect the panel from damage. Then remove all screws that are securing the back of the the tv. Remove the back and check the power supply pcb. This is the board with the power cord going to it. If they are puffed they need to be replaced with equal or slightly greated values. The values are mfd and voltage. You will need a soldering iron to remove and install the new caps. If caps look good, then check the voltage levels of the dc output (marked on board next to the connector) with a dc multimeter. If all the voltages are correct and constant, then your power supply is good. But, this does sound like a power supply issue

Apr 03, 2011 | Philips Televison & Video

1 Answer

It does not on


Please of anyone solved this problem help me, please send any tips or help on ahonda55@hotmail.com

May 13, 2009 | Philips 20PF4121 20 in. EDTV-Ready LCD...

1 Answer

Looking for diagram of CWT-9200C PC Power supply


Hi guys
Thanks for your willingness.
I have found a cct diagram of a similar atx power supply which solves my problem.
Be Blessed
Andre

Feb 18, 2009 | Generic Memory 250 W POWER SUPPLY...

1 Answer

Philips tv 20pf4121 doesn't turn on


I had exactly the same problem When the TV was switched on all I could see was a flashing green light. After cheching the TV internals and not seeing a problem including the power supply unit which looked and checked normal. Here is what I did to get M TV working again.
Disconnect it from the power supply. Hold down all the buttons simultaneously i.e. the on/off, the volume, the programme, menu buttons, all of them simultaneously and Plug it into the power supply again.
Lo and behold My TV jumped back into life after an absence of about 4 weeks.
Try it yourself exactly as above.

Best of luck.

Irishfreethinker

Feb 10, 2009 | Philips 13MDTD20 13 in. TV/DVD Combo

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As I found somewhere on the internet; there are two 470uF/25V capacitors on the power supply board in the sub-woofer that are the cause of buzzing, crackling and then eventually no sound. Go to Radio Shack and buy two Catalog #: 272-1030 470uF/35V capacitors and change them out. They are in the middle of the Power Supply PCB and are close to the long flat aluminum heatsink. Make sure you match the polarity properly when replacing. Your unit will be as good as new and will proibably last forever now.

Jun 12, 2008 | Philips HTS3450 System

1 Answer

JVC VCR POWER SUPPLY DOES NOT START


Not many of us could help you, a quicker solution would be to Google your above question. " CCT Diagram+HR-J20ES/SA"

Jan 05, 2008 | Televison & Video

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