My 2005 42 inch Plasma TV , Philips 42PF9630A/37, has sound and changes channels, but picture screen is black with a pixilated looking red cloud covering about half of the screen. the red dots are almost centered right to left and also occur on upper and lower half of screen. My research on line points to the main logic board as possibly causing the issue. Do you have any operating experience with this symptom and any recommended board changes to remedy ?
SOURCE: Red noise or flicker on bottom half a plasma screen
The old saying that a pictures is worth a thousand words could have been looking at this one... If the lower screen had been streaked in B&W or bands ran completely through the picture Old Drummer I would suspect the logic board also but that's lower y-board failure.
Bill
SOURCE: Philips 42PF9630A 42 in. Plasma 42 in. Plasma
Ok 7 red blinking led, remove the back cover of the TV. Looking at the power supply in the upper left of power supply. If everything is working fine you will see a solid green led if there is an error, you will see this light blinking also. Right below this led on the power board you will see a list of numbers 1-13 this will give u the problems that this led flashing problems are. More and likely u will have a problem with VSET or VSCAN. Which is connected to the Y-Main and Y-buffers,( the board that is too the left of the power supply if u look on the small print on this board you will see that it reads. 42HDV4 Ymain and the 2 small boards connected to it are Y buffers. To be sure that this board is bad if the TV keeps going into error protection. unplug the power supply and wait for the led to stop flashing. Disconnect the cable that plugs into Y-Main from the Power Supply. It should stay running. If u remove this board and look underneath u should be able to see where this board is getting hot. Easiest fix is to order a replacement. Y-main assembly.
SOURCE: Replacing the Y-MAIN or Y-SUSTAIN Board in Philips 42PF9630A/#&
I called PTS 1-800-844-7871 they told me it was an easy fix. The part is $162.75. Im gonna try it.
SOURCE: Black vertical bar about 4 and a half inches wide down center of screen
hi...
It sounds like an Intergrated Circuit (IC) has fried.
Your best bet in this situation is to contact ur tv service operator and let them recommend an authorized service center in your area....
rate me!!
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.
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