Question about Philips 27PT81S 27" TV

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TV LED Flashes then TV shuts itself off

TV shuts itself off. TV will be on for an undertermined time and Red LED power light on front will flash then TV turns off. TV will turn back on either by remote or power button on set and the majority of the time will continue to shut itself off immediately after being turned on. If TV is left off for a long time TV will stay on for about an hour then start shutting itself off again. I have a feeling that it is a chip problem and needs replacing. The TV has been a good workhorse and in all other respects a worthwhile purchase.

Posted by Eugene Anton on

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Anonymous

Capacitor problems in power supply or a regulater isolate the power suppley by disconecting the line output stage/unplug scan coils for example and run a 60w bulb as a dummy load one wire to earth and the other to rail voltage colecter of line output transister if the bulb glows steady the power supplys fine

Posted on Jun 25, 2007

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My TV randomly switches itself off and the red light flashes continously and i have to pull out the plug. its getting more frequent

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Please check if you can access the "error code operational check" to narrow down where the fault came from.
How to enter to error code operational check.
Note : The TV must be in shutdown and not have been switched off. When the TV is switched off, the error code automatically resets to 12 (no error).
Press the buttons on the front panel "Input/Device" and "Menu" at the same time and hold it for 5 sec, activate the error code mode. The LED light will flashes denoting a two digit error code.
Example : if the error code is 22, the led will flash two times pause and then flash two times and will repeat the error code for five times.

If you can't access the error code operational check , please let me know the exact pattern of the flashes of the led light and its color. Check if it will continually flashes green to give you the caused of the symptoms and best solution.

Good luck and take care.

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8.2. Power LED Flashing timing table
When an abnormality has occurred, the protection circuit operate and cuts the power supply. At this time, the defective line can be
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4 MAIN 3.3V 88
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6 GC3FM-IIC IIC
7 GC3FS-IIC IIC
8 GC3I-IIC IIC
9 COLOR WHEEL STOP 110


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Green flashes then tv turns off
or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

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