Question about Televison & Video

1 Answer

My lg rt21fa32 no power. Secondry voltage comes and go down

Posted by on

Ad

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.

  • Televison & ... Master
  • 74,185 Answers

There should be some short with its main digital board. Contact any technician to make it sure. If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic equipment service help. You can get a solution there. Type in the brand name to your device to its search box, can be located at the top right of the display window. It will make search easy. More than Nine Lakh viewers cannot be wrong.
http://electronicshelponline.blogspot.com/

Posted on May 08, 2013

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

60PN5000 LG turns off after about 3 mins. Power supply board?


Could be, but other boards can pull down a voltage too. To find this measure all the different voltages on the power supply board. If they are all present and correct then the problem is elsewhere. If you have a lower voltage, remove a wire connector going to another board and re measure the voltage. If the voltage returns to normal, then the board that that wire connector goes to is the problem. Do this again with each of the other connectors on the power supply board. If, after you have all the connectors removed and the voltages don't come back, then the power supply board is bad. You can get replacement parts here: TV Parts Universal TV Stands DLP Chips ShopJimmy

Jul 28, 2017 | LG Televison & Video

1 Answer

Emachines e4026 non-responsive


I don't think it's an overheating CPU. It would stay on for a bit longer if it was that. My best guess is a power supply issue. Either your power supply is bad, or more likely something is pulling too much power from it. Emachines are notorious for using the bare minimum hardware... possibly the extra hard drive is pulling more juice than the power supply can handle, so it shuts down. Try disconnecting power to the new hard drive and see if the machine comes up. If it does, you need a new, higher wattage power supply.

Sep 06, 2007 | E-Machines eMachines Desktop PC

1 Answer

My LG 42LH30 UA LCD TV WONT POWER ON WAHTA CAN I DO TO FIX IT


open it up check the power supply for busted/swollen or leaking caps if it has some change them out with new caps with same uf and voltages (although you cna up the voltage a little) - check the voltages coming from the power supply if the tv will stay on long enough to do so - if not order a power supply

thanks,
michael

Mar 21, 2011 | LG 42LH30 42 in. LCD TV

1 Answer

When its turned on it clicks on and off over and


The logic board is sensing an overload condition and is stopping the power board from producing high DC voltage. The logic board will try 3 times to boot-up the power supply and when the same condition appears it shuts the power supply down. DC high voltage output is being held down and only 5volts stand-by is active. The power board needs to be tested and logic controls also. If you have some test equipment and some electronics background I can show you how to fix this problem....

Get back too me about this when you can....
circuitworld@comclast.net

Dec 28, 2009 | LG 37LG30 37 in. LCD HDTV

2 Answers

LG 26LG30 screen suddently went blank. Light flashing blue/red


There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

Nov 14, 2009 | LG 26LG30 26 in. LCD TV

1 Answer

I have a friend with a quasar SP-3231 television manufactured in 1998. When they try to turn on the tv, you can hear the relays engage, but the picture never comes up. Preliminary testing indicates there...


The set you are talking about I am unfamiliar with .. however as an engineer for 23 years I am sure it is not unlike any other CRT TV as you say you have no voltage on the rgb is the tube heater on ( you should see a glow at the end of the tube ) if not check you heater rail voltage , check your oscilator Ht output transistor should be 300 to 360 volts on the emitter if this goes down then the lineoutput satge will not opperate hence no picture and in many cases the audio is fed from the secondry of the Line output transformer hence no sound either .. DO NOT ATTEMPT TO DO THIS UNLESS YOU HAVE HAD TECHNICAL TRAINING VOLTAGES HERE ARE IN EXCESS OF 19 KV to 25,000 Volts DEPENDING ON TUBE SIZE AND SHOULD NEVER BE ATTEMPTED BY UNTRAINED PERSONEL... Vortash

May 10, 2009 | Quasar SP-3231 TV

1 Answer

Light blinking problem in LG 775N ( White ) 17'' CRT monitor


any shortage in secondry side of monitor ..
plz check shoting.

Feb 25, 2009 | Computers & Internet

1 Answer

Where is it


No Sir, Main power supply has 2 portion, 1st is called primary and 2nd is called secondary. Primary power area is connected to ac oulet directly and secondry power area is isolated and source of power to projector circuits. Lamp power supply calls "Blast Power Supply" in projectors (Its very high voltage area). Please be careful while testing power supplies.

Jul 25, 2008 | NEC VT460 Multimedia Projector

1 Answer

Display problem


pls check all the electrolytic cap after the secondry power and electrolytic cap to in/output the vertical ic and at horizontal cct.

thanks.

Dec 17, 2007 | LG Studioworks 700S 17" CRT Monitor

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

Related Topics:

25 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74185 Answers

Cindy Wells

Level 3 Expert

5123 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...