My screen will turn on right after unit is plugged in and stay on for a short period of time, then it shuts off and the red light near the power button blinks and teh tv will not turn back on. This could be a loose connection in the power plug how do I fix it?

How old is the tv set also do you have it plugged up to a power cord? Can you tell me how many times does the light blink thank you.

"The air conditioner cools the room but it shuts of." -- Temperature reached, but does not turn back on automatically? Stops short of reaching temperature? Shuts off for a period, but will come back on only to shut off again later?
Most importantly, how do you get it to turn on again?
"The power light doesn't come on while unit is on." -- If the unit is on and the power light is not, then the power light must not be operating (is burnt out).
Actual answer: "Can I replace the plug?" -- Of course you can.
What is causing you to feel that the plug needs replaced?
:o).

HI:
This is a plasma unit and philips plasma's are nortorious for bad power supplys, your problem may very well be the power suppy in the television, it is possible you blew a low B+ fuse on the power supply. There is also a issue with the Y-sustain board failing in this model, If you open the back and looking at the unit from the rear the y board is on the left side of the unit and the PS is in the center. disconnect the Y-sustain power plug from the power supply and turn on the unit if the unit stays on with no red light then the y board is bad. it does the same then replace the Power Supply.

If the PSU is confirmed working, it is either something wrong with the microcontroller in the southbridge that controls the power on sequence, the linear regulator that powers it and/or the ROL board, or a short in the 5V standby (blown capacitor, transistor, etc).

The easy way to determine which one of these is the problem is to look at the light on the PSU, if when you plug it into the 360 it turns red briefly (or stays red), there is a short on the standby power (If the short was on the switched supply, the 360 would power up then flash 3 red lights with error 0001 or 0002, or power up for a split second then shut itself off). Also measuring the resistance from 5VSB to ground is a pretty sure fire way to tell

If the 5V standby power is NOT shorted, then the issue is either in the power button on the RF board (easily tested by powering up the box via another method), the southbridge, the the voltage regulator supplying it.

The two regualtors are U5B1 (3.3V) and U5B2 (1.8V). They are located on the top of the motherboard near the back, jsut to the left of the large screw hole in the center of the motherboard (near the fans). The large tab opposite the 2 smaller pins is the output of each regulator, so they should measure 3.3v and 1.8v respectively when the 360 is in standby (off but plugged in).

If those measure ok, then I'd say the southbridge is dead (that motherboard is nothing but a nice paperweight)

bright red with lines left to right? would be shorted crt. shutting off would be normal due to high beam current.

that depends on the value of the television and the cost of replacing the power supply and connections.
Most likely you have a short in your power supply or other connections causing the tv to protect itself by shutting down. You can check with our Repair Service lookup icon for a repair service near you.
Before you call them you may try unplugging your unit for 30 minutes or so and plugging it back in.

Hi ,
u check almost all ....
also check with u r power buton of front panel of pc if this button is get short then it is possible .....please disconnect switch from board & just short with any metal ....if u r pc is not geting shut down please replace rower switch ...


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i also have the same problem with the flashing green light for a while then a different red light starts blinking on and off around 5 times....and i replaced my burnt bulb with a new one...still no picture.

my screen will turn on right after unit is plugged in and stay on for a short period of time, then it shuts off and the red light near the power button blinks and teh tv will not turn back on. there might be problem of loose contact in power supply Thanks

Its late, so just to make sure I'm not brain-dead basically your laptop runs fine as long as its powered by the AC adaptor but dies fairly quickly while running via battery. This is very typical of a battery that will no longer hold a charge, not normally a user repairable item. It could also be that the charging electronics (in the laptop) isn't charging the battery, again not a typical user repair job. About your only option short of taking it to the repair shop is buying or borrowing a battery as a test.