Question about JVC AV-27230 27" TV

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  • megone Jun 16, 2008

    JVC AV-20420 turns off after 4 seconds and won't turn back on power light flashes.



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It could be a memory error or a main power supply malfunction.please contact the nearest repair shop.

Posted on Jul 19, 2008


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Posted on Jan 02, 2017


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3 Answers

TV turns itself off?

I am sharing four cases in which your tv either turns itself off or appears to turn itself off.

TV appears to be off
  • You using your tv as a monitor or your pc is in sleeping mode.
  • Your cable or satellite Box is not outputting a signal.

TV turns iteself off
  • The sleep timer is set.
  • The off timer is set.

Your tv appears to be off:

If you are using the tv as a monitor If you are using tv as a monitor and the stand-by light only
blinks for a few seconds when you press the power button,your pc is in the sleeping mode. To take your pc out of sleep,press a key from your key board or move the mouse.Tv turns on.

If you are using TV with a cable or satellite Box

If you have a cable or satellite Box your Tv may appear be off because the cable or satellite Box is not outputting a signal.Press the guide or info button on the cable or satellite Box remote control.

if the screen displays info or guide data,the problem is caused by the Box,you must call your cable provider.
if screen does not display info data,change the source on your TV.


Nov 14, 2014 | Televison & Video

1 Answer

Sony grand wega keeps turning itself off

Try to restore settings to default, if not try upgrading the software...... but iam pretty sure it is ur sleep timer ;)

Feb 05, 2014 | Televison & Video

1 Answer

SONY HDTV-LCD MODEL - KDF-42WE655 turns itself off. Lamp light indicator flashes red. Should I attempt to reset ? It is approx. 4 years old

I'd wager that somewhere in the menu settings, there is a "Sleep Timer". Check the menu for the sleep timer, which turns off the TV after a set length of time. Also, check your remote, there might be a "Sleep" button that would do the same thing, press it multiple times until it reads "Sleep: Off" or something similar.

Dec 19, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Digital input not working and greyed out on the menu.

Most JVC TV's with HDMI and Digital Input have an optical sensor inside the case to sense if someone is trying to bypass the hardware encryption. My JVC was exposed to sunlight prolonged sunlight and triggered this optical sensor which disabled my HDMI ports. This may be the same situation for you.


Turn the TV on, and enter the Service Menu. Select 2 for Self Check. Then turn the TV off, and after the fan turns off, unplug the power cord. Reconnect the power cord, turn the TV on, and the HDMI port is re-enabled.

Here's how to get to Service Menu:

Before entering the SERVICE MENU, confirm that the setting
of TV/CATV SW of the REMOTE CONTROL UNIT is at the
"TV" side and the setting of VCR/DVD SW of the REMOTE
CONTROL UNIT is at the "VCR" side. If the switches have not
been properly set, you cannot enter the SERVICE MENU.
1) Press [SLEEP TIMER] key and while the indication of
SLEEP TIMER 0 MIN is being displayed, press
[DISPLAY] key and [VIDEO STATUS] key (Fig.2)
2) The SERVICE MENU screen of Fig.1 is displayed.
3) Verify what to set in the SERVICE MENU, and set
whatever is necessary (Fig.1).
Refer to the SERVICE ADJUSTMENT for setting.
4) Press the [BACK] key to return the SERVICE MENU.

Dec 12, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

My tv will not turn on and the on timer light is

Try the following blog. It has detailed instructions on how to fix a common problem on this JVC TV series. I did and I fixed my TV for 2 bucks at home.

Good Luck...Kim

Jan 14, 2010 | JVC AV-36950 TV

1 Answer

Power/standby light flashes 7 times and the tv doesn't turn on

Audio Protect (7 Flash): When DC voltage is detected at the speaker or
woofer outputs, IC3604/pin128 (TV-micro) goes low and IC3604 turns off
the main power (AC relay turns OFF).
Troubleshooting Tips:
1) Main cause of defective will be located on the KD-board
2) Confi rm KD-board is securely seated on the G2-board
3) Replace KD-board

Jun 13, 2008 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer


is this electricity pocket plugged up to a timer ? or take the tv back to the shop... lost the receit just look for the same tv on computer

Feb 20, 2008 | Toshiba 28N33 28" TV

1 Answer


check your sleep timer settings thats the most comman prob

Dec 18, 2007 | Philips 27PT81S 27" TV

1 Answer

Magnavox lcd tv

Setting the Sleep Timer sleeptimer.gif The sleep timer allows your LCD TV to automatically turn OFF after a given amount of time. You can set the sleep timer using your remote control or through the onscreen display (OSD).
1. Press the SLEEP button on the remote control. The sleep timer appears at
the top of your screen.
2. Press the SLEEP button one or more times to select the time you want.
3. Press the EXIT button to hide the sleep timer display. Your sleep timer is now running in the background. The sleep timer will be hidden after 10 seconds.
Turning On the LCD TV.
1. Press the MAIN POWER switch in the back of the unit (see Back Connectors for location). The Status LED on the front turns orange
and your LCD TV is ready to turn on.
2. Press the POWER button on the front of your LCD TV or on your
remote control. The Status LED on the front turns green.moz-screenshot-6.jpgmoz-screenshot-5.jpg

Dec 18, 2007 | Televison & Video

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