Question about Sharp AQUOS LC-45D40U 45 in. LCD Television

1 Answer

LC-45GD4U Hi, my tv powers on showing the blue light which flashes for 4 seconds then turns off its followed by the red light which starts blinking for 2 seconds pauses and then repeats. I already changed the t-con board, what other options should I try to solve this issue??

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  • Edgar Flores
    Edgar Flores Oct 26, 2012

    I believe i misworded my question: the tv turns on shows the blue light for 4 seconds, then turns off and then turns off the red light starts blinking 2 times, pauses and then repeats when I power the tv on. Aside from replacing the t-con board, I also replaced the power supply. Any other advice for this issue??

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  • Sharp Master
  • 933 Answers

I'm believe the 2 flashing code specifies a problem with the power supply. It is possible that one or more of your supply voltages is out of wack. Have the power supply tested.

Posted on Oct 26, 2012

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myterminal
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SOURCE: Display powers of with power up of AVC

Actually, I have heard about this kind of a problem before too.
Let me enquire more about it and I will let you know.

Posted on Apr 26, 2008

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SOURCE: No power on LC32D50U Sharp

bobnyc, Is set under warranty? How old is it? Did it display a "perfect" picture yesterday, and not today. How is or was the AUDIO. Can you hear anything or nothing? Is the SMPS power supply board a "COMBO" or is the INVERTER supply located elsewhere? To where do the CCF tubes connect to get power? Tell me, do u have a good DMM, 100mhz Ocilloscope, Isolation transformer, and soldering iron/ solder wick???? If have some answer to some these ??? contact me @ louie12fix on fixya or at lmistyrel @aol.com PS: I highly recomend use of digital cam to take pic's before taking stuff apart. Could help when reassembling.

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circuitworld
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SOURCE: Sharp LC-26D43U TV. After power is turned on the

Power board is detecting an 'over-or-under-voltage' condition from other circuits. Could also be high dc volt shut-down. In either case, the tv is in protection mode to stop further damage this is why it flash an error code 4 times. Each number flash intervals tells the tv-technician what area the fault may potentially be. take it back if its under warranty, or have a repair shop near you fix it.

Posted on Nov 21, 2009

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SOURCE: My sharp LC-37d62u display problem

This problem very common in sharp tv.The POWER,OPC flashes.First turn on have power LED indicator light stable at all? Tries the power again couple times will have backlight come back on,than it will work.Not at all more than 5-6 times than ur main turner signal board is the problem,must replaced.

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Testimonial: "Took a part back panels looking at the circuit board power capacitors, plugged in TV to power outlet, and powered up normally."

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SOURCE: I have an aquios LC-42D64U which suddenly has the

This problems is very common on Sharp tv after a year or two.I have one too 46" Aquos.The tv Tuner signal board have problems,but this tv still usable.My tv does Power and OPC LEDS lights flashes alots many times as the tv getting older.This how i solved it.If POWER and OPC LEDS lights flashes,just press the remote power again wait awhile.Sometimes POWER and OPC LEDS lights will flashes again,just press the remote power button again and wait awhile.Sometimes POWER and OPC LEDS lights will repeat like 3 or 4 everytimes,just must press the remote power switch wait awhile eventually the backlight,will light up the Tuner signal board kick in and work.Have to press the remote power button and wait for the POWER and OPC LEDS to stop blinking and the Tuner signal board to kick in.But like POWER and OPC LEDS blinks 10 or 12 times and remote power button press 10 or 12 times,it time to replaced the tv Tuner signal board.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

Posted on Feb 05, 2011

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320_128.jpgexpl330_128_blue_pop.jpg340_small.jpg

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The following procedure will re-establish the communication link between the Headphones and the Wireless adapter, this is called "pairing". Before you start please make sure both the headphones and the wireless adapter are fully charged and turned off.
Note: The headphones and the wireless adapter come pre-paired from the factory.
1. Press and hold the power button on the headphones. See Figure 1.
headphone.jpg
Figure 1

2. Continue to hold the button down until the LED starts flashing red/blue in an alternating pattern. Release the button when the LED starts flashing red/blue. See Figure 2.
headphone-flash.gif
Figure 2
3. Once the headphones LED is flashing red/blue, press and hold the power button on the wireless adapter. See Figure 3.
receiver.jpg
Figure 3
4. Hold down the button until the LED starts flashing red/blue in an alternating patter. The LED will blink blue, then turn off for a few seconds then blink red/blue. Release the button when the LED starts flashing red/blue. See Figure 4.
receiver-flash.gif
Figure 4
5. Once both the headphones LED and the adapter LED is blinking red/blue, press the volume up button once on the headphones. See Figure 5.
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Figure 5
Once the headphones is paired with the adapter, the LED on the headphones will blink blue once every two seconds. See Figure 6.
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Figure 6
When the adapter is paired the LED will be solid blue. See Figure 7.
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Figure 7
The adapter may continue to blink red/blue for a few seconds even after the headphones LED starting blinking blue. This is normal; the adapter may take a few additional seconds before the LED turn solid blue.
Once the headphones and the adapter are paired, it is not necessary to pair them again even if the batteries on both units are completely drained.
Additional Note: Repeated pairing will not improve the sound quality or give the headphones and the adapter a cleaner connection.

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