The TV does not memorize scanned tv stations-over-the-air broadcast tv channels. Both regular channel scan, AND add channel scan. The scan works perfectly as long as the TV is turned on, but if the tv is turned off in the normal manner with remote or side power button, NO channels can be received until a re-scan. Is there a lithium battery for memory, as in a PC computer? Or did some impossible to find chip go bad?? Please help. Thanks.bp
No. It has no such battery inside. Its memory IC is non-volatile type, and need no back-up electric charge to retain the data, even after it is switched OFF. http://electronicshelponline.blogspot.com/
SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound
You most definately have bad capacitors in the power supply. try and get it repaired as soon as possible, not an expensive repair that iv'e seen.
SOURCE: Blue light
Okay, I found a fix! Called JVC, spoke to somebody there, here it is:
1)unplug the TV completely, no wall no power strips, completely
2)wait 10 sec
3)plug TV back in and Turn it on, the light will still be doing the same thing
4)wait 30 sec
5)ON THE TV, not the remote, locate the menu, volume (-) and power button.
6)while simultaneously holding down the menu and volume (-) button, pressed the power button ONCE and continue to hold the other 2 for 10 sec.
7)on the remote control, go to menu>settings>system info
*** now this I know as a FACT will work on systems that display: JVC - ver.5.32FO001, but I don't know of any other versions***
8)press the mute button on the remote twice
9)unplugg TV again and wait 10 sec.
10) plug TV in and turn on
It SHOULD be working normally now... Thanx to the guys a JVC support for this one, I know it seems like an obvious first place to look, but sometimes it isn't. I for one checked online forums first.
SOURCE: JVC LT 32E479 UNABLE TO SWITCH ANY CHANNELS
go to menu select TV settings select add a channel In the scan boxes type 1 and 3 or what every you have your Satellite set to Then hit start scan The TV will come on reset to channel 3.
SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound
Hi , I have the same problem with my LT-42X688,so i called the service of my extended warranty provider . the TV technician just left and told me the motherboard is the problem. he said its the third one this week he has seen with the same symptoms. he ordered the motherboard and i've got to wait 5 to 7 work days before the part will be in . I will keep you posted when the guy will return.
SOURCE: My JVC LT-42X579 42 in. LCD TV is only 13 MONTHS
I contact JVC and was told to first make sure your cable box or whatever you use to normally watch TV is powered on and is ready to work
He told me to unplug TV for 10 seconds at least. Then he had me press and hold down the "MENU and VOLUME DOWN (-)" buttons, at the same time for about 10 seconds. Then after 10 seconds of holding the 2 buttons down, he had me continue to hold the 2 buttons and press and let go of the power button. In other words after 10 seconds of holding down the volume down (-) and menu buttons, add the third button (power) and immediately let go of all 3 buttons, at the same time.
It worked for me instantlynd hopefully it works for you!!!
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