Question about Philips 42PF9966 42 in. HD-Ready Plasma Television

1 Answer

FUSE KEEPS BLOWING WHEN POWERING ON

Philips 42pf9966 42 in hdtv ready plasma fuse keeps blowing when powering on what do you think, PS I can here a click each time I try.
I can use a soldering iron do you reckon I can fix it myself.

Posted by on

  • 1 more comment 
  • pop_rivett Feb 01, 2009

    I have identified the big storage capacitors but I am not sure about the rectifier diodes supplying the big storage capacitor(s) can you give me more of a clue what i am looking for & what test results I should get from them using a multimeter. Also can I damage any of the components using a multimeter, Regards pop

  • Martin B
    Martin B May 11, 2010

    There are usually 4 together, black & cylindrical with a band round one end. Where the mains comes onto the board. If there is a shorted one then the resistance will be signigicantly different from the others, probably only a few ohms.



    Sometimes they are moudled into a 4 leg block I dont know about this particular TV

  • Martin B
    Martin B May 11, 2010

    Check the rectifier diodes supplying the big storage capacitor(s) with a multimeter. One of them might have gone short circuit.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 44 Answers

I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsung. Known to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio connections. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. Link to a photo of the PCB. Make a note of the location of all cable connections then unplug them all. Un-install PCB, Check a Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.

Posted on Jun 25, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Turn on


Three thoughts---check for short to ground with fuse removed and power off (unplugged) on both sides of fuse.

Use a original type fuse---generic ones often blow for no reason.

Consider replacing the board if you can confirm issue is on it.

Nov 03, 2012 | Samsung UN55B8000 55 in. LCD HDTV

1 Answer

Fuse keeps blowing on my Philips 32pw8608/12


Please, never try to replace a fuse, without checking for any short circuit inside. You will only increase the damage inside. It is advisable to call in a qualified service technician as opening back cover by unqualified personnel is hazardous.

Aug 15, 2012 | Philips Flat Panel Televisions

1 Answer

No power or light, plus power supply keeps blowing fuse


you have a short most likely on the power supply but could be on the mainboard, inverter board, av/input board. The T-con board is fused and should blow its fuse before blowing the fuse on the power supply. I'm going with a faulty power supply, most likely a shorted Mosfet.

Sep 24, 2011 | Philips Magnavox 42MF521D/37 Television

2 Answers

Panasonis 50" plasma, both fuses keep blowing when


This is a dead short, check power supply for diodes bad or zeners

Mar 08, 2011 | Panasonic Viera TH-50PX80U Plasma TV

1 Answer

Keeps blowing the plug fuse and/or triping the circuit breaker when plug in? Been working fine for 5 years until now


That must be the mains cable or the filter box as it enters the TV.
The TV is fused internally so suspect the supply cable or mains filter capacirors.
Hope that helps.

Dec 10, 2010 | Hitachi 32PD5200 32 in. HD-Ready Plasma...

2 Answers

My Philips 42PF5421 tv keeps blowing the fuse. I have tried three in as many days but pop! I am replacing it with 3amp. ANy ideas?


the power board is what is my concern here.

Things to check
1. Buldging Capacitors

The power board is in distress if its poping that many fuses, I would just have you replace the power board.

Your full model number was not displayed is it a 21 D, B or C

you can find the part HERE


thanks and be sure to rate

Aug 20, 2010 | Philips 42PF5421 42 in. LCD Television

1 Answer

Panasonic plasma hdtv will not power on--no blinking LED, simply no LED. Other objects plugged into same surge protector are fine; no evidence or suggestion of a power surge.


The power supply board itself maybe the main problem inside the TV. Or, it maybe something simple like a blown fuse. Replacement fuses can be found at Radio Shack or some other electronic supply store.
If it turns out the TV keeps blowing fuses, the main power supply may need to be replaced. You can find replacements at a good price at Shopjimmy.com

Sep 12, 2009 | Panasonic TH-42PX60U Television

1 Answer

Philips model 29pt3425-79 flat screen wont switch on


May try to replace your power supply. Average cost runs $200 via Internet. Also may inspect test & replace deformed an or any bulging caps.

Jun 01, 2009 | Philips 37PF7320A 37 in. HD-Ready LCD...

1 Answer

The fuse keep blowing out after a while on my Sampo 47in what do you think could be the problem?


Some board may be loose or you have a major power supply problem. recommend professional repair..

Mar 09, 2009 | Sampo PME-42S6WT 42 in. HD-Ready Plasma...

Not finding what you are looking for?
Philips 42PF9966 42 in. HD-Ready Plasma Television Logo

589 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

68368 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

 Grubhead
Grubhead

Level 3 Expert

4593 Answers

Are you a Philips Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...