Question about Philips 42PF9631D 42 in. Plasma Television

2 Answers

Red LED blinking after turn on the TV (Philips Plasma 42PF9631D

Turn on TV (March-27- 2009 / 1700PM......PST)
1. Green LED stay on about 10 seconds, then OFF
2. Red LED appearing and blinking forever (Nothing show on TV screen)
3. Upgraded new software
http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?scy=US&slg=AEN&sct=PLASMA_LARGE_32_42_SU&cat=FLAT_TV_CA&grp=TV_GR&session=20090328141356_75.53.183.168&ctn=42PF9631D/37&ds=42PF9631D/37&mid=Link_Software&hlt=Link_Software
4. TV now work fine
5. Setting sleep mode (at night)
6. Same problem occur when turn on TV (next morning March-28-2009 / 0800AM....PST)

Posted by hoidaonguyen on

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2 Answers

Ginko

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  • 19,396 Answers

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.

Posted on May 21, 2009

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Anonymous

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Remove capacitors at the power module. The one on the midle on the PCB. There should be a 4 amp fuse between them, Note polarity before removing them.They might look ok from the top. Replace them with newones. Also the 4 amp fuse. That should do it!

Posted on Jul 27, 2010

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