Question about Televison & Video

1 Answer

When power supply to TV exceeds 224V the TV switch off. It then tries to switch "on" again and will do so until the power supply to TV is lower than 224V. I ran a AC DC regulater to keep power output to TV as close to 220V. Then TV plays perfect. Aventually I unplug TV and go to bed. I have tried UPS's as well. Same problem. I think power supply unit in TV is damaged due to power surges. I replaced this 2 year old TV with a new one. Costly excercise. I still belive this TV can be fixed. The technician tried but unable to find the fault!!!! I live in South Africa and Hitachi parts is not so freely availible. If I new that I would never have purchase this TV. Where can I purchase a new power supply that is lacated in the TV unit itself. This might solve the problem??? Thanks

Posted by on

1 Answer

  • 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.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,654 Answers

If a power supply is what you want, they are available all over the world, just use the internet like you did tonight and use Google, type in your tv make and model and power supply and you will find them. Parts are really hard to come by now the Quake in Japan has shut down many suppliers. I am in America and we can;t get these here, but you should be able to find them online where you loive.Or simply contact Hitachi for the replacement. The reason the set is shutting down is just as you described it, it senses an over current and shuts down before burning up. The place you bought the set might be your best place to look, or the technician who looked at it should be able to get these parts.

Posted on Mar 23, 2011

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

Sharp tv works for a while then cuts of wont comes on again until I takes out the plug starts it back again


Most likely the power supply board needs to be replaced. The parts heat up and fail. After you let it sit for a while they cool off and start working again. This has probably been getting worse over months.

If you don't know what you're doing, DON'T OPEN THE TV UP TO FIX IT, THERE ARE HAZARDOUS VOLTAGES ON THE POWER SUPPLY BOARD, EVEN WEEKS AFTER THE TV IS UNPLUGGED!

If you don't know how to do it yourself, find some local Electronic repair shops, get quotes, try to find reviews on the shops.

Nov 09, 2016 | Sharp Televison & Video

2 Answers

Why wont the flashing red light go away and switch on my 32 inch led hisense tv


It could be your remote control batteries are dead? Try to manually depress on/off switch on TV.

Dec 03, 2014 | Hisense Televison & Video

1 Answer

After A.C. power failures, my Panasonic DMR-EH55 does not come "to life" again (even in "off mode"). Removing it from the power for several days then trying again (and repeating this if...


Possible that the main power supply has failed and so it is important that with your skills you must be able to check the power to the SMPS - switch mode power supply.
If power is good then the processor must be checked or there is failure on the motherboard.
Check this link;

http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies

Sep 03, 2011 | Panasonic DMR-EH55 DVD Recorder/HDD...

2 Answers

Tv plugged in and switched on, No standby light comes on there is a small red light on in the back of the set which would indicate power getting in but not switching on, Is there a fuse inside the unit or...


Tries tv unplug,replug it back like about an hour later for the tv to a resetting itself.Tv now,might and will work again sometimes.Not.Tries the power switch on the tv remote pushes off/on a few times,for the power supply board trying to kick start the tv Tuner signal board again.Still tv not have lit up the screen panel and work than it could be anythings in it boards are shorted or loses,if tv have a/c power to it.Take it to the tv shops for prices and quotes.Shops,must have trouble shoot and repair are ur best options.Replacement of refurbishes PCB boards,any replacements are a gest at best,if tv is a Plasma and still have power to the tv.

May 31, 2011 | LG RU-42PX10 42 in. HD-Ready Plasma...

1 Answer

When I hit the power button on my 32" Vizio Plasma


Hello,

You have a TV with a failing power supply board. There are parts in the power supply called capacitors that start failing and this causes the power supply to not be able to properly filter the voltages. When you keep turning it on and off the capacitors will finally hold a charge correctly so the voltages will stabilize and the TV turns on ok until the next time you turn it off. As time goes by the capacitors will degrade more until the TV will not work any more. If you can solder then you should be able to repair the TV yourself. We have a page on our web site http://www.ccl-la.com/blog/index.php/capacitors/
That explains what capacitors are and how to determine the bad ones that have failed. If you replace the failed capacitors in the power supply then you should have a working TV again.

BuddyMc
Corporate Computer

Dec 15, 2010 | Vizio VP322 32 in. Plasma TV

1 Answer

Hi, I have a Sony KDL-46XBR9 LCD Digital Color TV. This morning my son was watching cartoons and it clicked itself off. It has sometimes done this in the past, so we did something else for a couple of...


This tv have a power supply board is the causes and the problems.Ur tv power supply board finally gave out and not supply the right voltages to the tv system anymore.That the board,where the tv 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 06, 2010 | Televison & Video

1 Answer

VCR plays 15 seconds, TV shuts off. Same without tape inserted


Sounds like a typical Switched Mode Power Supply fault, or an internal thermal fault that is shutting down the power supply, over & over. Really you need to get it serviced. You need to get a firm "Quote" for repair, remember these days repair can often exceed replacement cost.

Feb 03, 2010 | Televison & Video

1 Answer

Vizio L42, wont turn on


Usually when this happens, the TV is in Protection Mode. When the TV detects something has gone wrong inside, the TV will prevent itself from turning ON.
Try leaving the TV unplugged for 30 -45 minutes so the TV can discharge and reset itself. If this doesn't fix the problem, most likely it's a power supply board related issue. At that point, you may want to get a price quote from a local TV repair shop. The cost of fixing the TV may exceed the price of a brand new TV.

Aug 06, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Toshiba cf32c50 tv will not turn on


This is a typical condition if the power supply has failed or a power-consuming circuit the supply services has exceeded a predetermined current draw. The relay you hear is preventing further damage or even fire.
You will need local tech help with this. 

Sep 29, 2008 | Toshiba CF32F50 TV

1 Answer

Tv switches itself off to standby


Sounds like a fault in the remote receive circuit or power supply. ambient electrical noise is getting into the circuit somehere. As it is not a new TV, I would suspect power supply capacitors, as they dry out with heat and age. Probably best to take it to a repair shop that gives free estimates/quotes, as there may be more on its way out and this is the first symptom.

Nov 29, 2007 | Philips TV Tuner Video Capture PCI Card -...

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

Related Topics:

49 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74106 Answers

Cindy Wells

Level 3 Expert

5099 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...