Question about Televison & Video
Try the circuit breaker and unplug and replug it in my TV does this sometimes
Posted on Jul 12, 2017
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Posted on Jan 02, 2017
This denotes a problem called blooming the horizontal lines you see are called retrace lines this is caused by the increase in anode voltage which could be caused by an increase in HV section current which trips the overcurrent protection dircuit and turns the TV off.If you do not have electronics experience I would suggest taking the set to a TV repair shop.
Posted on Sep 24, 2007
SOURCE: will not turn on
I have an RCA projection widescreen TV model # D52W19B and was watching when it made a pop noise and turned itself off. Now when you try and turn on you get a high pitch beep but TV keeps shutting itself off with no picture or anything. Could this be the bulb went bad?
Posted on Jan 14, 2008
SOURCE: Power won't turn on
The microprocessor in the keypad probably needs to be reset. With the unit unplugged, remove the keypad housing (one screw in back, one on the left side, rock it up enough to get a small screwdriver inside, then push back the soft plastic fingers to release the housing -- force it a bit, you won't break it). You do not need to remove the bottom cover.
Remove the keypad cover (4 screws) and the PC board (one screw). You'll see a factory reset button near the middle of the left side. Press and hold that for a couple of seconds.
If you want to test the unit before re-assembly, hold the PC board so it doesn't short against anything (there's nothing more than 5v on the board, so you won't get shocked), and plug the unit in. The display should appear. Unplug the unit, re-assemble, and then bake some bread!
There is also the possibility that the backup battery on this PC board is bad. Check it with a voltmeter -- it should be about 5v.
Posted on Jan 26, 2008
SOURCE: Totally lost power to HP 7110
Don't Worry the HP printer are deisgned to connect without the surg protector.
Try the steps mentioned bellow
Unplug the power cord from the All-In-One as well as the power outlet when there is still power in the All-In-One. and wait for atleast 1Min
Plug the power cord directly to a wall outlet without surg protector. (if possible connect it to a different power outlet)
Before connecting the power cord to the All-In-One press and hold the # and no 6 button and then insert the power cord, do not release the keys
until you see a message a reset (if the screen goes blank then release the keys and turn the power on)
If This does not work in the power cord you will see a rectangle box like thing thats a apdptor, after plugging it to the power oulet for a couple of minitues, check and see if you can feel any heat in the adaptor if yes then the adaptor is good the power cord may be bad, so accordingly replce the power cord or adaptor:
For HP Parts check the link bellow:
Posted on Oct 03, 2008
Most common reason is shorted convergence chips. Goto the site www.TvRepairKits.com and get their "chirping set" repair kit.
Posted on Feb 04, 2009
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