Question about JVC Televison & Video

3 Answers

It works for about 2 hours then just shuts down. The blue "on" indicator light simply flashes on and off. If I try to shut off the TV, nothing happens. If I unplug it and wait for a few hours and plug it back in, it comes on as thought nothing ever happened. How do I fix this?

Posted by on

  • 1 more comment 
  • sicilian01 Jul 29, 2008

    THIS IS NOT A PROJECTION TV, IT's A FLAT SCREEN HDTV

  • sicilian01 Jul 29, 2008

    32" JVC I'Art HDTV. This is a flat screen pic tube model, NOT PROJECTION. Plays for a couple of hours then pic and sound go away and the blue on light flashes on and off. Only way to shut it off is to unplug it. Then if we leave it off for several hours and plug it back in it will work for a couple and go out again.

  • sicilian01 Jul 29, 2008

    I'm pretty certain it's not cold solder joints causing this problem. It worked fine for a long time then this started. Something makes me think it may be power supply related but I'm not a tv guy.

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,234 Answers

The blinking light is an indication that the set is in protective shutdown. A problem has been detected and the set is shutdown to prevent further damage. While a poor solder connection could be the cause here, there is also the possibility that a defective component is the problem. Does the light blink in any type of pattern? Usually theprotective shutdown will trigger an indication circuit that will blink the light a different count depending upon what type of defect was detected. CAn you post that count here?

JVC sets are difficult because service information is not available outside of authorized service centers. Whether the problem is a bad connection or defective part, it is most likely within the power supply area.

Please keep us posted.

Dan

Posted on Jul 30, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,071 Answers

Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the LCD TV turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough.

Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".

Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....

Good luck:

Regards,
VOTIT

Posted on Jul 29, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • JVC Master
  • 19,396 Answers

It goes on stand by because of overheating, if it is a traditional projection tv it is usually a ballast problem or a problem on main pcb board. If it is a LCD , Plasma etc, it can also be the external poer adapter giving overvoltage after a while.
In first case you need a tv repaiman in second test and eventually replace power adapter.

Posted on Jul 29, 2008

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

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


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

Jan 06, 2013 | JVC LT42P789 42 in. LCD TV

1 Answer

When I was watching TV today my Sony Bravia KDL-40V4100 just swutched off by itself. After 15 minutes or so it came back on by itself, I shut it off soon after. Later on today after watching TV for 15...


When tv it shutting itself off by it own does the tv power LED light indication flashes?Tv turn on now,the tv power light indication,just flashes?Yes,than ur tv power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Dec 12, 2010 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

I have a mitsubishi the model number is wd-82837 it keep shut down after blue screen show


Ur tv"LAMP"LED light indication flashes or stay on?Ur tv projection lamp been inside this tv like a 1 1/2 or 2 years and tv been on an in used like 4 or 5 hours every day.Yes to all of this,than the tv projection lamp is the causes and it life are ending.The tv projection lamp require replacing.

Dec 09, 2010 | Mitsubishi WD-82837 82 in. HDTV DLP TV

1 Answer

My KP-51HW40 clicks off after running for a period. The red power light blinks when it goes off but screen stays dark. When TV is shut off for a while it restarts and runs fine. The "On"...


Hi,
KP-51HW40 shuts off due to incorrect white balance and blue arch lines is an evidence of that incorrect white balance. I hope tv standby red light would flashing 5 times then 3 seconds pause and again 5 times when tv shuts down.
This is rear projection tv that has three picture tubes (red-green-blue) inside to generate picture that projected at front screen. These three picture tubes must be drive with correct drive voltage to produce good picture of each color.
Solution for your tv problem is Screen Voltage adjustment that can be done easily if you are handy with electronics stuff repair.
Let me know your expertise level to guide you more and if you feel unconformable by tv repair then local tv repairman will help you to adjust white balance in tv.
Hope these info will help you.
Let me know if you have additional questions.
Thanks.

Nov 05, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

I have a Samsung HL-R5678W DLP TV that is acting up. When I first turn it on everything works, after 5 minutes it shuts itself off. After 2 minutes it will come back on without sound. It will do this a...


U turn tv on hear any squiling,grinding or motor noises?Picture show up before it shut down picture have flashes of black&white within the picture?Yes,to all of these,this tv have a colors wheel and it dead,require the colors wheel replacing.No,none of these problems.The tv projection lamp,if in this tv like a 1 1/2 or 2 years,tv ben on an watches like 4 or 5 hours a day?The "LAMP" LED light indication lite up or flahes,the projection lamp life is over.Require a new projection lamp.

Oct 22, 2010 | Samsung DLP HL-P5663W 56" TV

1 Answer

Blue light remains lit but lose picture. no other indicator lights flash. if i unplug the tv it will restart but lose picture again after half hour


I have a toshiba 50hm67 tv and with mine the blue light would come on and I would hear sound first and then the picture would finally come on... this happend for about a month.... next the yellow and blue light would come on but the pic still wouldn't come on until it clicked off and on by itself for about 10 min this went on for about a week. All of a sudden last night the red lights by the power light started blinking. No tv now and when the tv shut off it said lamp not working.

Sep 17, 2010 | Toshiba 56HM66 56" Projection HDTV

2 Answers

TV wont stay on.


Similar problem with my Sony. unplug for 36 hours and try again

Aug 13, 2009 | Samsung HL-R6767W Replacement Lamp

1 Answer

TV shuts off and red standby/timer lights blinks red until I power the set off. When it shuts down it does so with a very loud snap. When I turn it back on the screen is blue and has light blue...


The most common cause for what you are seeing is a shorted gun in the picture tube. When 2 elements (heater and cathode) of one of the guns inside the neck of the picture tube touch, that gun goes full on and overloads the flyback (high voltage) transformer. If it is in the blue gun, the screen will go bright blue with light blue "retrace" lines in it. The computer senses the overload and shuts the set off. At 2 years old the tech most likely tried removing the short by arcing between the elements. This works sometimes but the short often comes back a few months later. Another attempt at removing the short could be tried, and it might work this time, but it may or may not work for long. The ony other solution is to replace the picture tube but that would cost much more than the set is worth. A qualified tech will be able to tell you if this is the problem in your set.

Aug 21, 2007 | Sony KV-35S36 35" TV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

39 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72640 Answers

Jaime Hernandez

Level 3 Expert

2296 Answers

easy alberta
easy alberta

Level 2 Expert

132 Answers

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

Answer questions

Manuals & User Guides

Loading...