Question about JVC LT42P789 42 in. LCD TV

1 Answer

Tv will not turn on i push power on button and blue lights click on an tv acts like it will come on but then tv shuts off and no picture appears

Blue lights come on but no picture appears.an then tv shuts itsself off

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • JVC Master
  • 34,102 Answers

The blue light merely indicates power is getting to the TV. When you press the power on button, the defective power supply shuts the TV down immediately

Posted on Jan 06, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 105 Answers

SOURCE: my tv won"t turn on.

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.

Posted on Apr 29, 2009

  • 1 Answer

SOURCE: JVC 42 INCH PLASMA POWER LIGHT BLINKING ONLY NO PICTURE

no kidding? what is the problem so prevelant in this unit? obvious design flaw.

Posted on Jul 26, 2008

  • 8457 Answers

SOURCE: No picture or sound!!

Call the tv warrenty serviced repair,tv under a one old right?The tv power supply board is dead,need repairing by replacing power supply parts call like capacitors common parts dies by leaking gases in the power supply board.

Posted on Jul 07, 2010

  • 8457 Answers

SOURCE: On/Off blue light blinking, TV won't come on.

Ur power ic inverter board is dead.
U need new one.

Posted on Aug 19, 2009

Testimonial: "Thanks for the advice. Will try it."

  • 608 Answers

SOURCE: I turn on the tv then it turns back off on its own

I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Posted on Dec 09, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My LG Plasma 50PK550 doesn't show a picture when I push the power button. It will also shut off when I push either the Input or channel buttons.


Main digital board fault. Check and replace the main digital board. Contact any service technician. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/

Jan 27, 2017 | LG 50PK550 50 HDTV Plasma TV

1 Answer

Element flat screen tv screen appears off when power is on


At this stage, try replacing ps Caps. Old elements had cap problems in ps area.

Feb 11, 2014 | Element Electronics Televison & Video

1 Answer

Tv takes to long to turn on and screen resizes


sounds like a power supply issue. partstore.com might have a power supply for this tv

Mar 18, 2010 | Sony KDS-R50XBR1 50" HDTV

2 Answers

Tv won't stay on push on button and shuts off w/in 2 seconds


common to having a flyback transformer problem. this will require parts replacement

Dec 27, 2009 | Sony FD Trinitron WEGA KV-36FS120 36" TV

2 Answers

I turn on the T.V. and the blue light is blinking and the T.V. doesn't turn on


1. simultaneoulsy press and hold [menu] and [vol-] on TV side panel
2. press and release [power] on TV side panel
3. count to 5 and release[menu] and [vol-]
4. TV should have turned on
5. if not, unplug TV and press[power]
6. repeat from step 1 if the TV does not power on the 2nd time

Jul 10, 2009 | JVC LT42P789 42 in. LCD TV

1 Answer

My tv won"t turn on.


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.

Apr 07, 2009 | JVC LT-42X579 42 in. LCD TV

1 Answer

I went turn on my tv the picture came on then off


Picture turned Yellow because the Blue CRT stopped working. Power turns off because the power supply is indicating a fault. you probably lost your HT (high tension [voltage]) power supply on the blue CRT (picture tube). Professional assistance is recommended. HT power supply CAN DELIVER A LETHAL SHOCK even when the set is unplugged.

Jan 15, 2009 | Philips 46PP9302 46" Rear Projection...

1 Answer

Blinking green reset light


Can you please supply us with the make and model as well as the blink count of the green light. That count should be indicating the problem circuit. Once that info is posted, we should be able to give you more details and possible solutions.
Dan

Jun 19, 2008 | Televison & Video

1 Answer

Error Code 5 flashes when unit shuts down


Good Day;
It sounds like the TV may have a shorted CRT, picture tube, but let's trouble shoot:
1. Unplug TV from wall.
2. Remove speaker grill, two on bottom, the screws are covered with plastic caps, right and left side on bottom next to floor.
3. Remove inner panel.
4. The blue tube is the one the right side, remove socket, with phillips driver, make sure it's not touching anything.
5. Plug and turn TV back on, if picture appears with no blue it's the tube.
6. If still shuts down, bad blue CRT driver IC.
CAUTION: Call a factory authorized service dealer to give you an estimate, if this sounds too hard.
Good Luck, Day, Big Irish.

Jun 18, 2008 | Sony KP-51WS510 51" Rear Projection...

Not finding what you are looking for?
JVC LT42P789 42 in. LCD TV Logo

614 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74106 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Are you a JVC Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...