Question about Sharp Aquos LC-37HV4U 37 in. LCD HDTV

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Display powers of with power up of AVC

Unit is five years old and until now no problems. Following suggested power up process (1) dispplay Main Power on yields red to blinking red expected. (2) AVC Main Power on and Display red goes off. Attempts to immediately repeat sequence yields no red light on Display when pressing Main Power button. Can only repeat process after diconnecting power cord for Display and AVC unit for an hour or more. Was able to gain normal expected Display functionality once, over two day period in the course of following these steps, maintained normal TV operation. Following normal shut off, back with same problem.

Posted by John Killmer on

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  • talog Dec 03, 2007

    Sharp has to know of this problem, I too have this problem on a unit 4-5 years old LC30HV4U and if there are this many looking for answers here how many more are out there? We need to let the right people know maybe even check with state consumers affairs department or BBB or maybe even Consumer Electronics there needs to be a recall on this.

  • Anonymous Jun 09, 2008

    My screen stays blue when I turn it on. The redlight will turn green than it turns red again? I need help.

  • Anonymous Mar 31, 2009

    followed the directions to turning on and off tv while holding buttons down - tv came on - enabled the write mode and then selected the second line down on the first menu 1-15 to have it restore. It went to ant A - turned tv off and now when we turn tv on the
    lights are green on both avc and tv, but screen is black - what can we try now? Also, to get it to turn on we still have to hold down all the buttons.

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Anonymous

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This is the problem with my LC-37HV4U. I plug in the AVC and the tv/monitor and I get both red power lights (not blinking) but no green lights, sound, or picture. I mean the tv screen stays black! It seems like their is no communication between the AVC and the monitor. I thought at least the screen would light up when the power light came on and being it has it's own power source. This tv is driving me nuts!! Can anyone please help?? Thank you.

Posted on Dec 03, 2009

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Mihalhs

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Sharp aquos 32 I got same issue with the flashing red light, however when i remove the dvi-d connection cable from the avc system and connect it to my computer it works without any problems. I'm going to try a converter ive got which i use to connect my old crt tv with my computer ill need some cables to do that and then connect it to my freeview box and see if that works. If it doesn't the only solution i see is to throw away the avc system and use tv as a monitoras a computer monitor.I'll let you know if it worked in few days.

Posted on May 08, 2012

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Anonymous

Same problem here 2003 LC-37HV4U, AVC unit just stopped working. Sharp wants nothing to do with it and won't help in anyway. You can buy a reman avc for $800.00. Best bet is to throw it out and buy a Sony.

Posted on Jan 13, 2008

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OK. Here seems to be a solution that is working now. Unplug both the AVC and the panel (I used a power strip to make this easier by just turning off the strip and back on again). With the AC removed, press the "MAIN POWER" on. Next, press and hold the "VOL (--)" and "INPUT" at the same time. Finally, plug the AC power back in and the set should come on.
After it came on, mine was in a factory test mode. I had to enable the write mode (I think it writes to the PROM) and then selected the second line down on the first menu (1 of 15 ) to have it do the restore or something.
Finally, my set came up with OPC enabled to auto and it seems to have a sensor issue. At night, the monitor is unwatchable with such low light. So, I turned on a bright light near the monitor and set that to "Manual". so far, for two days and nights now it has been working again. I hope this helps. Good luck! -Brad

Posted on Aug 15, 2008

1 Related Answer

bestdarngood

Benjamin Patri

  • 3037 Answers

SOURCE: Display powers of with power up of AVC

how many blinks does the red light give in a row? This would be an error code?

The problem for 7 blinks would be an Interface board. Apparently there is a glitch in the interface board that sends signals to the television. Basically the glitch shorts out the board and the t.v wont turn on and you will see the power light blink 7 times pause then 7 more. You can replace the board with a new one and update the software on the new interface board.


If is isn't 7, let me know and I will help you out with this

thanks

Posted on Apr 26, 2008

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Try these....please let me know the result:

Method 1
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Display powers of with power up of AVC


how many blinks does the red light give in a row? This would be an error code?

The problem for 7 blinks would be an Interface board. Apparently there is a glitch in the interface board that sends signals to the television. Basically the glitch shorts out the board and the t.v wont turn on and you will see the power light blink 7 times pause then 7 more. You can replace the board with a new one and update the software on the new interface board.


If is isn't 7, let me know and I will help you out with this

thanks

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