20 Most Recent Philips 42PF9631D 42 in. Plasma Television - Page 4 Questions & Answers

First you have to find replcament capacitors from the TV manufacturer on the internet. then you learn how to disassemble your TV and power supply, to use screw drivers and soldering iron. Then you can replace any capacitors. Radio Shack salesmen can help technically.

You need to replace the caps on the PSB-Power supply board

Best regards and Semper Fi

Hi, 9 times out of 10 it will be the capacitors on the power supply board,easy job if your handy, dear as hell if you put it in a shop

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Unplug the box's power cord for 5 minutes and wait for it to reset, plug it in, wait another 3 minutes for the box to reboot, then power up the box. If that doesn't fix it then you might have to call your satellite/cable company.

Do a tv system over haul reset.Tries unplug,replug the tv an hour later.Go to the tv menu,goto AUDIO,go down to do the resetting,now the tv is back to factory setting.Go to the tv menu,than goto PICTURE,go down to resetting,to reset all the Tuner board setting,back to the factory setting.The audio,should be back now.Not,retraced from the speakers,wires back to the board connections,unplug,replug every connnetoins and replaced all the supporting components near the speakers wires are connected.

No matter how many blinks it have,95% of blinking light front panel power indication,it the power supply board or it beside supporting boards have dead capacitors.Replaced those dying to be dead capacitors will solved this power problems.

You have a plasma and the problem is , as you guessed, in the syncro module. Unfortunately you can't fix it, the entire motherboard must be replaced (since the syncro is part of the mainboard chip) and it's only available to authorised dealerships. But, since this will be a relatively cheap fix - less than $250 - and the image quality of your tv is rated almost everywhere as excellent, you should fix the tv and keep it.

An issue i came across with this particular model tv was there were two (2) 3300 micro-farad 25v caps on the power board that have gone bad, preventing the tv from starting up. I replace those two capacitors and it started right up! I suggest having a tech do it, unless u have experience with electronics. I cannot be held responsible for any damage done to your tv, warranties voided, or shocks you may receive. but that should get it to start back up.

loud noise ? ! just indicate that the main power supply capacitors are bad, or sometimes is just the ceramic filters.
undo the back and check for any blow capacitor or burned components.
the new power board cost 139.99 on ebay
http://cgi.ebay.com/Power-Supply-LJ44-00117A-PS-425-PH-Philips-42PF9631D-37-/260597950481?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3cacd92811#ht_500wt_928

if you dont want to fix your TV, let me know cuz i will buy for parts, write me to
[email protected]

Common short the cover cap over the video & sound boards short out if you remove it the cap only (shield metal) it usually will fix this

Power supply needs repair.Est in range of $150 is fair. Find a qualified shop

Hi,

I would suggest few options for you to get the audio back. I hope video is coming out correctly?.

1. Select the proper HDMI input where you connected BDP.
2. Set the HDMI audio set up to ON/bitstream(do not select OFF).
3. If the Digital Audio Output set up is available select PCM/ALL and not OFF.
3. If you have connected external amplifier pls..remove this?
4. Are you playing a DVD/BD with normal Dolby content or DTS content? Because some TV sets do not have the decoders to decode the DTS content hence there would be no sound.

Let me know if you still have problems

This actually sounds more like a signal issue on the cable box. When you go from regular digital chs to HD channels sometimes boxes will distort or pause the picture when changing channels (it's not the cable or satellite, it's your TV trying to read the different format of the chs) this is normal. Also, some TVs may need to have a firmware update and you can normally get it from the Manufacturer's website

If you have the experience and the tools, the best thing to do would be to first download the service manual, which you can do for free at the following website:

http://www.eserviceinfo.com/download.php?fileid=47612

It is a multipart self extracting rar archive, and free of viruses.

On page 20, starting at fig. 5-6, there are troubleshooting flowcharts that you can then follow to identify the issue and find out what you have to do to resolve it. There is a built in system which will blink the LED's in specific patterns to help identify which area of the TV is having issues. Again, if you have the experience and tools you'll be able to follow the charts to the resolution of your issue. If you have never worked with TV's then it would be better to leave the diagnostics and repairs to a repair tech. There are lethal voltages inside all TV's that must be dealt with properly.
Good luck with whatever route you choose to follow.

Recheck ur power supply board,check all the capacitors on the board.Find any bulges on top,rusted forms on the power board.Replaced these capacitors,should solved ur power problems.Or tries Wesites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

either the on off relay, or the bulb, my guess is the on off switch.
lightning?or power surge?

posible bad power supply , maybe 2 bad capacitor on power supply , u may want to hire a tv tech for this job $300

just call the customer care, they'll send there executive,, and he'll finsh the, job,,,
dont let any one else screw up ur tv set

Screen damage. Is it under warrenty. Is it insured