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The clicking sound is a safety device that prevents that TV from starting because a fault has been detected.
The fault is also indicated by the two blinks. Two blinks point at a problem with one of the low voltage lines (it should be 15V) from the power supply. The PSU is the part to be tested and eventually replaced. Before calling the technician try to unplug the power cord and leave the TV to rest for about one hour before restarting.
What Operating system Windows 7 , XP? Right click on desktop, go to personalize, left hand grid find display left click, click on detect, should help. Or, How many buttons are by the power button! One may be marked by a screen symbol> try a RGB cable and hook up to a TV or Monitor!
This set has a number of problem detection circuits and safety shutoffs. The clinking you are heearing is the power relay turning on then off as a problem is detected and hte set shuts down. This is normal expected behavior when the set has a problem. The most common cause of this is a defective horizontal output transistor that has failed. Expect a parts cost in the $30 range for this repair.
You have a power supply or high voltage problem that system control is detecting that is keeping the set from coming on and possibly causing more damage. Have a repair shop check it out for you. Thanks for using Fixya.
The clicking noise is the protection switch that keep shutting down the unit. This happens when an internal fault had been detected.
Do the following:
Unplug the unit from power for some time. Remove the bulp and refit it in place. Restart the unit.
If still in protect mode (clicking , lamp light and no start), then there is a fault. When the problem is the lamp, the lamp light will come on, but usually protection does not click. Before buying a new lamp that is expensive, have the projector checked, testing with particular attention the high voltage board that will supply power to the lamp. That may be the fault. If you have a replacement lamp in storage replace the lamp first.
The real deal here is the protection circuit has activated. This is
caused whenever an excessive amount of current is being drawn from the
main power supply. Upon detection of same, it immediately takes over
the power management of the set and shuts it down. The clicking sound
you hear is the ON relay turning on the set, but immediately the power
mangement system shuts it OFF. You should hear two clicks, but they
may be so close together that it sounds like one click.
This set is getting rather ancient and I would not recommend you spend
much money on it for this reason: It is highly likely that once the
set if repaired that another failure would occur. This is because of
the law of averages; the first failure is often followed by another
failure from anywhere within the set.
There is a problem inside that is being detected during the power-up sequence. The clicking is the main power relay that is being tripped when the problme is detected. With no symptoms to guide me other than the clicking, I can't state the exact problem. This could be as simple as a bad cap in the power supply or something more severe. An examination of the boards and some measurements would be necessary to provide you with a reasonable estimate for the repair. I would suggest that you bring this to an authorized Panasonic service center for an estimate first. Armed with their evaluation, I may be able to walk you throught the actual repair.
Do you have the speakers plugged into the correct plugs in the sound card? Make sure speakers are not plugged into the mike jack. Do you hear any static as you remove and replug the jacks? Do the speakers have a power light?
Open Control Panel ->Sounds and click on Sounds tab. Do any sounds play? Click on the Audio tab and make sure Default device is your sound card. Click on Volume tab and then Advanced. Make sure nothing is muted.
Assuming you have Windows, check the sound card in Control
Panel->System, Hardware, Device Manager. Check for correct drivers.
If necessary, uninstall sound card and let Windows detect it again and