Televison & Video Logo

Related Topics:

Question about Televison & Video

1 Answer

Tv Is not respondind

I have citizen TV Model #C24401,When I turn it on,I get power light On,but I m not getting any picture or sound.I is just dead

Posted by callasif on

Ad

1 Answer

Anonymous

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

This denotes a problem with the power supply either the low voltage power supply of the high voltage power supply. You will need the following documents and equipment if you plan on doing this yourself: 1) a schematic diagram 2) a Multimeter 3) an oscilloscope 4) a signal generator (color bar, cross hatch, and purity) The schematic will let you know where the test points are and the level of voltage and signal are supposed o be at the test point. The multimeter will allow you to trace and measure DC and AC voltages throughout the set. The oscilloscope will allow you to view the waveforms generated by the signal generator, this is needed to tell if a component is not processing the signal in the proper fashion. The signal generator creates a standard reference to measure by. Since this prolem is in the power supply section you should determine if the problem is a blown fuse by visually inspecting the fuse. Than you will need to determine if the problem is in the high voltage power supply. You do this by checking the transistors in the horizontal section of the TV. you will find the problem either in the low or high voltage power supplies.

Posted on Oct 10, 2007

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Sony TV model # KDL55HX800- no sound/no picture. 3.3 volts and 12 volts seems to be OK . Relay clicks on/off on power board. What shold I look for ?

  1. buy the service manual yet?
  2. get a real shop TV to fix it?
  3. what to look for in this complex mess really? well lots.
  4. all DC supply rails not just 2.
  5. Screen dead make sure LED back lamps have DC power.
  6. does flash light pointed to screen show data/??????
  7. no sound but gee lacking a screen how would you find a sound source input. hard no? yes. a mp3 file on USB"
  8. its not just dead clicker battery is it?
  9. this tv uses 167watts of power old is it? 2010 made. 12 years old it is. but is LED back lamp'ed I think.
  10. connect DVD deck player via HDMI and put in DVD and push play on deck and hear sound now?????????? hummmmm
  11. below RIGHT BOTTOM TV SIDE TURN OFF POWER SAVINGS?
  12. THERE IS 2 POWER ON BUTTONS 1 TV , 1 REMOTE BOTH FAIL>? AND SAVER BUTTON TRY BOTH MODES? YET.
  13. turn up volume and try playing DVD? fo sound works Backlamps are dead?
  14. The TV will indicate any problems with the STANDBY indicator flashing in reD and is a code. does it.
  15. the LED driver board bad or power to it is dead. (LED back lamps)
  16. and vastly more , any board that kills power DC or data then the screen goes dead.
0helpful
1answer

My tv has no sound of picture

I cant see your TV. maker nor model , of 1000s
nor can I see if HDMI cables are attached, or optical sound cables.
nor if TV has external speakers or top brand RECEIVER to them.
is it a SMART TV< with TV screen apps and all that?
no sound or picture you typed "of"
and is a key fact that, and means TV is dead if or picture is dead.

the TV needs service if it is dead,
The TV can lose sound easy if you have the sound setting wrong
but the screen dead is 10x worse if true means mostly internal power supplies are dead.
my TV makes chime tuned on did yours before?
My LG even has logo for LG, as turned on, did yours?
0helpful
1answer

I have a 55 in HP TV and has power, when i press the on button the light turns blue but no picture THIS IS A FLAT SCREEN TV 55 IN.

get it fixed, call a service tech or take it in to a shop.
NO model TV stated at all just TV (HP)
HP LD5511 55"(this?) or some old plasma TV? what model is it , thanks.
on the rear is a tag that tag shows the model
first is age, how old is it and models tell me that.
the early LCD TV have back lamp that go out.
is sound dead, too? if yes, the TV has a bad internal power supply.
if sounds good but screen is dead, (use a flashlight pointed at the screen see video now (weak sure) but if seen that tells you the back lamps are burned out. (did TV screen run hot for many years )
yes, those are the ones that burn out.

here is the model prefix letter decode rules on HP TV.
  • PE or PL = Plasma TV
  • LC = LCD TV
  • LT = Professional Flat Panel LCD TVs
  • SL = MediaSmart LCD TV
  • MD or ID = Rear Projection Microdisplay TV
as you can see TV means Little. lacking full model numbers.
0helpful
2answers

Samsung LA40A550 no picture and sound

Power supply board is dead.That the board,the power a/c cord go into it.Replaced the power supply board will solved ur tv power lite LED light indicator blinking and ur tv power will be stable and work again.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
0helpful
1answer

Philips Model 50PL9126D\37 Turn TV on and after a

Ur LCD inverter board is dead,must change to get ur picture back.It usally a long board.
3helpful
1answer

TV power light comes on but no picture/no sound

chip on ic board repair shop might replace it and reprogram if the tv is worth the fix
3helpful
1answer

Citizen house tv that has a 'lock' logo on screen

The TV has been 'Locked'. To unlock it press the DISP button for 4 seconds. Since you have a universal remote and there is no way to determine which button is the DISP button try holding each button on the universal remote for 4 seconds until, hopefully, you find the correct one.
0helpful
1answer

KOLIN TV - Snap sound and went dead

The number is 1-888-796-8298,you need your model and serial number,tell them what happened and they will tell you where to take it.You should have some warranty.
Not finding what you are looking for?

240 views

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76851 Answers

Marvin
Marvin

Level 3 Expert

85240 Answers

Lawrence Oravetz

Level 3 Expert

10558 Answers

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

Answer questions

Manuals & User Guides

Loading...