Question about Sharp Aquos LC-30HV4U 30 in. LCD HDTV

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Neovia NEO-2605DT 26"LCD

Red light ok in standby mode -glows red but if you try to switch power on with either the on/off button or the remote - the stand by light starts to flash and there's no picture
any ideas - be most grateful

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  • HubP Jan 18, 2009

    Hi,



    I have exactly the same problem : red light OK in stand-by mode, but when i try to turn on the tv, red light flash with no picture (black screen).



    I have dismounted the TV and change the fuse, but it doesn't work.



    Maybe, we have to change the electronic board ...



    Anyone can help us ?



    Thanks.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 15 Answers

SOURCE: Sharp LC-15AV4U 15 in. LCD Television

Sounds like a lamp error.... either a defective or broken lamp within the LCD1.gif panel itself, or you have a bad inverter.

Posted on Apr 02, 2008

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carmine8507
  • 7 Answers

SOURCE: sharp aquos red flashing light tv won't get picture

if the tv is still under the manufactuer warranty i would definitly give them a call. If it is a Sharp tv I would call the 1-87-BESHARP. I would also try unplugging the tv for at least 2-3 minutes and seeing if the tv will reset itself. Usually what happens with these tv's when the light blinks it locks the tv as a security issue. If the unplug does not help it will more than likely need service to get this fixed for you. The call line hours are M-F 7am-7pm S-S 9-5 and they will be glad to help you from there.

Posted on Nov 09, 2008

ginko
  • 19396 Answers

SOURCE: LC-37AF3X Sharp Aquos KCD TV

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

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

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

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 , starting the flashing light.

If you are in situation one, then the TV 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.

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.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Posted on May 05, 2009

ikebert
  • 47 Answers

SOURCE: After a momentary power outage Panasonic LCD TV has a flashing red light and will not turn on.

Try using a different outlet, the outlet or the tv may have been damaged in the surge. In the case of the tv contact the manufacturer and see if it's still under warranty. There may also be a way to 'reset' the tv by holding the power button down, try looking in the manual or calling customer support. In the future use a surge protector, many of today's electronics are still sensitive to power surges, older tv's were more resilliant than today's in this regard.

Posted on May 30, 2009

dsacco86
  • 1077 Answers

SOURCE: Sharp Aquos 32GA5U red blinking light in front but no picture!!!

Right now your TV is in " Protection Mode " because of a failed part inside. The blinking red light is a error trouble code. Only someone with the actual Service Manual for the TV will know what the code means. Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common board to go bad is the Backlight Inverter Board. It what supplies power to the screen. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptoms.

You have a few choices:

1. You can try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.

3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you red light blinking codes, circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.

4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.


I hope I shed some light on the subject for you.

Posted on Jul 19, 2009

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