Unplug the JVC from the power outlet for 10 seconds. Plug the JVC TV back into the power outlet. Hold down both the "Menu" and "Volume Down (-)" buttons for another 10 seconds. Just before releasing these buttons, press and hold the "Power" button.
https://www.techwalla.com/articles/my-jvc-av-27920-tv-wont-turn-on
https://www.youtube.com/watch?v=O-Uj0kPWdeQ
SOURCE: JVC 36" TV will not power on and has a blinking power light...
Hi and welcome to FixYa,
Almost always, when an electronic device/equipment fails when powered with and by a generator, it is the power supply unit (PSU). The PSU circuitry expects a fairly constant/stable power source (120 or 220). The output of the generator tends to fluctuate especially under varying electrical load. Additionally, the AC frequency (60Hz) of the generator's output also tend to vary which most PSUs don't like. A noteworthy point to consider is that the generator is floating electrically, its output has no reference to earth/ground.
If you are considering a DIY (do-it-yourself), foremost to inspect would be the PSU particularly the regulator transistor and determine if it outputs +5 and ~+135 VDC. Another to check would be the HOT (horizontal output transistor). If when the TV was used powered by a generator, there was considerable vertical rolling, the vertical deflection IC would also be a suspect.
A friendly reminder, exercise caution when repairing TVs. It stores up EHV (extremely high voltage). It would be to your advantage to reference a service manual (JVC AV-36D303) or at the very least a schematic diagram with voltage readings.
Good luck and Thank you for using FixYa.
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: JVC LT-32P679 Blinking Power Light, Automatic Shutoff
1. Hold [menu] and [vol-] button on the side of the TV
2. while holding these, press the [power] button on the side of TV (NOT remote)
3. blue light comes ON and stays ON
4. wait 10 seconds then let go of [menu] and [vol-]
5. wait another 30 seconds and some type of picture should appear
I think this is right. I got it from the JVC call centers guys so sorry if I missed or messed up a step.
SOURCE: no power - have checked fuses, power leads and master switch
Well yes, there a problem in the power supply modual.
It does sound like a failing power supply , becuse of the
fact you don't get charge up spark from the plug , wich is normal
affter it's been off /unpluged for 20 min or so .
check the resistance of the plug coming from the set with a volt meter if you have 10 meg ohms or higher,
it's an open circuit and more than likely a 1.50 fuse in the power
supply. If the fuse blows instantly then it's a shorted output transistor or rectifier diode in the switching power supply.
Be a shame to pay 300.00 plus for a stupid fuse.
hope that helps a little . if you have any questions just comment
an i'll respond
.
Rob
SOURCE: No power on TV - JVC LT-47X788 47 in. HDTV LCD
Power supply board is dead.U have a LED light indicator on LCD panel flashing?The tv is completely dead,no LED light at all?Tries Website like Shopjimmy.com.Ebay.com to buy a refurbish power supply for the replacement.
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