Question about Philips 42PF9630A 42 in. Plasma Television

1 Answer

What part i.e sound card, circuit board would I need to fix the sound on a Philips plasma tv model #42pf7320a/37?

I posted this question earlier and I am sorry for the repetition but I don't think I was concise enough in describing my issue. The picture on the tv is very sharp and clear but there is no audio; HOWEVER, I do hear white noise..low hum with a shishing sound similar to what you would hear if your TV has that grainy black and white snow like when a tv or radio station goes off air. I cannot control the volume of the sound and there are no volume bars appearing on the screen but I can mute the sound. Also I have tried connecting and reconnecting the cable , dvd player and other devices in different ports so I am guessing something internal is the issue. I am pretty handy and can probably fix it myself if I knew what parts I might possibly need. Any assistance would be greatly appreciated. Thanks.

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  • Philips Master
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Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Jul 23, 2015

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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 93 Answers

SOURCE: Philips 32TA2800

The Way Im understanding your problem is,
it seems like you need to hook your rcas directly to the tv and switch the surround to aux or something similar to that.

Posted on Jun 14, 2009

Anonymous

  • 44 Answers

SOURCE: Philips 42'' Plasma TV 42PF7320A/37 red led error codes

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. Is a Link to a photo of the PCB. Make a note of the locations of all cable connections then unplug them all. Un-install PCB, Check all 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. Look to see if the Caps are deformed and or split at the top. 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

CAYPIANAN

ESTEBAN MERINO

  • 227 Answers

SOURCE: Philips 42PF7320A/37 blinking red light

hello, amigo if the all the caps are godd then you have to replace the power supply board. don't try to fix it this is not an easy task. you are looking at almost $200.00 with tax an shipping. just go to google and type your tv model # and ask for the power supply board or just look for the part# on the board itself. good luck

Posted on Jul 29, 2009

robo_geek

  • 128 Answers

SOURCE: No data is sent to the screen

When the screen goes completely black, shine a very bright flashlight closely at the screen. If you can see the image, then the most likely problem is that the backlight inverter has failed.

The inverter is a circuit board that works like a flourescent light ballast. If the inverter fails, there is no backlight, and the screen is black.

Since the invertor is a high-voltage component, I would also listen for any unusual sounds associated with the failure: e.g. buzzing, whistling, popping.

To rule out some sort of connection failure, see if you can recreate the failure mode when using the TVs internal setup menu. The setup menu does not rely on any external inputs....of course neither does the volume control or channel indicator on the screen.

Posted on Oct 07, 2009

Anonymous

  • 30 Answers

SOURCE: screen started to go black while watching the tv.

yes, by canging the bulb. it proboly went out while the television was already dead. you can try but i would hire a proffesional. it may cost 100$ or more.

Posted on Oct 11, 2009

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Clear picture but white noise and static?!!!!!. What do you say?. Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
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