Question about LG Televison & Video

Open Question

I have a lg 47lb5900 tv screen flashes on and off II replaced pwr supply led driver brd still does the same thing

Posted by on

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

dodgecharger
  • 254 Answers

SOURCE: pc no start.........

You might have a bad power supply. If you have a voltmeter, check the voltage of the standby power supply. This voltage is present even if the system is off, plugged in. It powers a small portion of the logic circuit. It should measure within a couple of tenths of exactly +5 volts. If it is low, or high, this will prevent turn-on. The purple wire of the 24 pin connector is what carries this to the motherboard. The color coding layout is found at http://pinouts.ru/Power/atx_v2_pinout.shtml If by chance this voltage is OK, then check the full on voltages also. Repair of the defective supply is probably by replacement of one or more small electrolytic capacitors in the appropriate circuit, especially if you are technically savvy. Capacitors are available through several suppliers; Digi-Key supplyies Panasonic FC series which are suitable for switching power supplies. Or, you may just replace the whole unit.

Posted on Apr 25, 2007

  • 8457 Answers

SOURCE: LG 50 IN. PLASMA TV MODEL # 50PC1DR . POWER

Power supply board is dead,replaced the power supply board will get power.

Posted on Jan 27, 2010

  • 1121 Answers

SOURCE: have a Vizio VW32L HDTV10A

is 3,3v,5v and 12v power supply

Posted on Feb 20, 2010

  • 50 Answers

SOURCE: replace lamp led light

Have you reset the lamp timer?
Was the lamp module sitted properly?
Remove the back panel and vacuum all the dust.
Also use compressed air to blow out the dust from the inside.
Do not blow into the fan on the right as that will get the dust inside the lamp housing.

Posted on Mar 08, 2010

bhatgiri73
  • 106 Answers

SOURCE: nec pf-68v21 pwr led flashing red green after horizontal output

check the supply at horizontal driver trans former ,if voltage is correct at ho/driver trasistor ...then check allthe fusible resistances from power supply,,,if tv is taking h/oscillation for awhile ,,give more screen control in lot,,, & see for a horizontal line ,,,before tv becomes off,,, if so vertical ic problem...

Posted on Mar 16, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a LG 47LV5500-UA. Power light & shows LG symbol briefly, then no picture. sound went away. Followed SJvideo and there are no backlights, but can see menu on screen with flashlight.


Who are "THEY", will "THEY" pay for the parts if the problem is not fixed with the two boards? I would not listen to them, have a shop that knows for sure repair the problem.

Jul 06, 2017 | LG Televison & Video

1 Answer

Hitachi 65SWX20B no picture/sound, 4 out of 5 green LEDs on, red LEDs on, green B+ LED is off. Pwr Relay clicks on, TV only turns on/off. IP02 location/How to check for 14-20V on terminal 4 of IP02?


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Sep 20, 2016 | Hitachi Televison & Video

1 Answer

How to fix a lg tv 47inch with black screen no pictur 47LB5900 model


The red light merely indicates power is getting to your TV. There may be an open internal fuse or power supply failure.

Jul 17, 2016 | LG Televison & Video

1 Answer

How to fix LG 47LN5200 TV?


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Nov 30, 2015 | LG Televison & Video

1 Answer

LG 42LD560 LCD TV


mainboard failure
I suggest you change tha flash memory .
This would be the first thing to try

Jul 11, 2014 | LG Televison & Video

1 Answer

Nec pf-68v21 pwr led flashing red green after horizontal output


check the supply at horizontal driver trans former ,if voltage is correct at ho/driver trasistor ...then check allthe fusible resistances from power supply,,,if tv is taking h/oscillation for awhile ,,give more screen control in lot,,, & see for a horizontal line ,,,before tv becomes off,,, if so vertical ic problem...

Mar 16, 2010 | Televison & Video

1 Answer

53UWX10B


Good Day, Butchilee,
Sounds like you have patience, hope your TV has some trace left. Hit recommends that you replace the originals with
STK-392-150's and the resistors. Replace said items with care then back down on the screen/ focus controls and gradually bring the screens up until you have pic, adjust focus. Go into customer menu and adjust color down, set brightness to 50%, contrast to 100%. Then go back and adjust the screens for proper, black/white, tracking. AND It's best to double check the soldering connections.
Good Luck, Big Irish.

Jul 04, 2008 | Hitachi 53UWX10B 53" Rear Projection...

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

Related Topics:

36 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18387 Answers

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

Answer questions

Manuals & User Guides

Loading...