Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

1 Answer

Why is the blue light on front blinking

The Blue light on front is blinking! I unpliuged it for five mins and pluged it in and it turned on. The screen had a red tent to it and than it Turned on and the light started bloinking again! why is it doing it and how can it bw fixed?

Posted by terryspoffor on

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1 Answer

SD Tech

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  • JVC Master
  • 14,553 Answers

My answer is based on the model number here-AV-56WP74 or similar--blue light blinking is shutdown to protect the power supply in the set.

A few questions you could answer:

before this happened was screen red (too much) or had colors skewed or a little 3d looking?

The most common issue on this set if that is convergence and it can easily escalate to where it shuts the set down and blue blinks constant.

There is a simple way to confirm or deny that issue--Got someone willing to try that? Set will be unplugged and entire front grill under screen removed to try it(I can tell you how and what to do)

If no skill at all--consult a shop--if want I will answer questions or comments you post on this page--(add a comment button)

SD TECH-

Posted on Apr 03, 2012

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5 Related Answers

Anonymous

SOURCE: Blue light and lamp light flashing, no picture.

Look in the owners manual for the directions on how to remove the lamp. Your model the lamp goes in from the front on the left looking at the TV. There is a thumb screw in the back on the corner holding the left front speaker on. Under the panel there is another thumb screw holding the lamp door on. You will need a Phillips screw driver to remove the lamp. You will most likely find that the lamp is bad. You will either have to order a lamp directly from JVC, a service center or a parts distributor.

Posted on May 11, 2008

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Anonymous

  • 1 Answer

SOURCE: tv troubleshooting

I have a 61" JVC that just stoped working. I turn it on and nothing bu the blue light stays on and the red light blinks 8 times and then the blue light joins in.

Posted on Nov 03, 2008

Ronnie Houston

  • 2920 Answers

SOURCE: Laptop screen has been invaded by green and red/purple germlins

haveyou tried shutting it down and restarting it? it may just be the screen going bad

Posted on Jan 26, 2009

Anonymous

  • 2 Answers

SOURCE: 52 inch rear projection tv turns off after a minute

try turning off the auto shut off feature in you set up screens . you can find them through the menu button on your remote. scroll through till you find it and turn it off.

Posted on Jan 30, 2009

ginko

Ginko

  • 19396 Answers

SOURCE: Light blinking on tv

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 22, 2009

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and there are sic controls on this little black screen control block
look for the screen controls and turn the blue one just slightly clockwise and you will see the blue screen will light up and you will have little arched lines turn the control back slowly till the lines disaper and the screen goes black

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