Question about Panasonic PT-LB20U Multimedia Projector

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Wont power on

It acts like it has no power, have checked outlet and outlet has power.

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There is an internal power fuse, a thermal overload fuse.
the lamp must also be installed

Posted on Feb 25, 2011


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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the mother board or the power supply is broken.
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Look for power outlet and ensure there is power. Check TV on other power outlets. Ensure required voltage is there on the power outlet. Even then, if you notice that the TV does not work, it might be attended to by a skilled and qualifies service technician.

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see the diagram and pictorial and proceed with common sense:
1) test the fuse for open or band contact with VOM,see the diagram attached how to do it
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Did you check power to the unit? Double check the common and grounds. When servicing I will disconect(unplug from wall) power to the unit. Is it pluged in? Use another outlet(the outlet under the sink may be wired thru a switch for a disposer)even if you need an extension cord. Hope this helps.

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Unless the power cord is loose, it sounds like the unit is defective. There are two places to check the power cord. The 'brick' has to be firmly inserted into the back of the printer and the cord has to be properly fitting into the brick. If all is well there, it sounds like something more drastic is wrong.


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Dryer shut off towels were not yet dry, turned dial to restart dryer acts as if it isn't getting power I closed door and pushed start button. Nothing! Checked breakers and power cord at outlet all checked...

Hello mdonettaYou said,
Dryer shut off towels were not yet dry, turned dial to restart dryer acts as if it isn't getting power I closed door and pushed start button. Nothing! Checked breakers and power cord at outlet all checked okay. Any ideas.

yes, try unplugging the power cord or turning off the breaker for 5 minutes. Either will due. Some times the system needs to be reset!
If this does not work there are internal fuses that can be replaced!

Let me know how it goes!

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1 Answer

No power light on TV, power at outlet, acts like internal blown fuse

Make sure your main switch near the power cord where fits in the tv is on,if it is and you have power in the outlet you have a power supply problem.i sugest to take it to a repair shop.I am a technician but i am in Puerto Rico otherwise i would be more than happy to fix it for you.I have a good experience with these tv and have fix a lot with thesame problem.
Regards and good luck,

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