Question about Toshiba 22el833g Led Tv - Toshiba

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Basically it does not switch on, perhaps the power supply is broken, please help

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Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. 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/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Posted on Apr 05, 2015

Testimonial: "As i was waiting for an answer here i found and for some reason i have the circuit diagram for this set now to find a technician that is willing to have a look at it, thanks"

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Posted on Apr 05, 2015

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If the air pump isn't working perhaps the power supply isn't reaching it or the pump is broken.

If the pump is running perhaps the air intake is blocked or perhaps the hose(s) have an obstruction or perhaps the outlet orifices are blocked.

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It depends. If if has an external power supply, you can try a different supply of the same rating. Beyond that, it may be a blown fuse, which may be internal on the power supply board, or as you say perhaps a broken power switch. Whether it's easy or not will depend on your diagnostic skills, how much you know about electronic repairs, and your availability of parts.
Generally, i suggest people take their repairs to professionals as poking around inside electronic gear can cause more damage, both to the gear and to themselves.

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My punch-out arcade control panel does not respond anymore. All I did was replace the non working micro-switches. Before the non-working micro-switch would make a buzz sound. Please help.


Perhaps check the electrolytic capacitors in the power supply. They may or may not be bulging on top.

http://www.microwavecontrol.com

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Please help me. Am having HP desktop computer. When I plug in the power cable the green light on the board switch meaning the board and the power pack are working but when I press the switch key the...


Open the side of the case and look look for a led on the mainboard. It should be on if the power supply is working properly. Have any changes been made inside the computer such as a new video card or harddrive? Perhaps the connector for the power switch has either come of the mother board or has failed.

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The coil is powered directly from the ignition(no fuses) on the pink wire. Perhaps you have a security system installed that is interrupting the circuit. It may also be that the wire itself is broken.

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I had not getting sound from my pc


Well, you need to be a bit more descriptive. Is this a desktop with external speakers, laptop, what operating system etc.

A few things to check off first (assuming resonably recent Windows OS):-

In the system tray, (bottom right hand corner by the clock) is there a speaker icon? If so, a single left-click with the mouse shold pop up a volume box. Is the slider right at the bottom, or perhaps the mute is clicked?

A double click of the same will give a bigger volme control box. Perhaps one of those is muted/low.

Check for broken wires or wires not fully pushed home.

If you have external speakers with a power button, this can be so that a battery supply can boost the volume. If the batteries go flat, switching to OFF should give you normal level sound.



I hope that this helps, but please post back with more information or other tests you have done so we can rules them out too.


Cheers,
Robin
Lancashire, UK

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1 Answer

It stop shredding and red light turn on


Check your power supply, but usually there is an internal fault with the Motor, or switch. basically all they are is a switch, going to a Motor. To troubleshoot simply check for Voltage, at the Motor Terminals, if none find out why, usually, a broken wire, bad switch, bypass to test, or at worse a burnt out motor. This is evidenced by the fact you have full voltage at the Motor terminals but still no go. repair, and you should be all good.
You can test the Motor by simply putting the Power supply directly across the Motor terminals, for a very brief moment, and see if it runs.

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Dell Flat Screen off/on switch broken


Mohons, Get with the the program, will ya!! A video clip is worth a thousand words!! Try a search at YOUTUBE for the longer 6 to 10 minute video clips of "LCD monitor disassembly" and "LCD monitor repair". Here is a clue. "Parting the rear cover from the front plastic bezel is the hardest part." Go watch some video. You will be glad you did. And while your inside the monitor, why don't you check the "switch-mode-power-supply board for any swollen and/or leaky electrolytic filter capacitors! Do you have an OHM-Meter or DVM to check the switch? Bye for now. 12fixlouie
ps. could be SMPS is not "listening" to a GOOD switch!

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Hi. I returned from vacation and turned on my power strip and monitor, tried to start my emachine t5026 computer and got nothing. the power light on the back of the power supply is off. If I unplug or...


Your Power supply is most likely dead.

A power strip is not sufficient protection against black outs, brown outs, power surges and other electrical interruptions that occur in the house. Many PC components are very sensitive to fluctuations in power and power supplies often are among the first casualties when a serious problem occurs.

To protect yourself against these common power issues you should invest in an Uninterruptible Power Supply or UPS. A UPS is basically a battery backup that will provide power when brown-outs or black-outs occur and will protect the delicate electronics in your PC. You can purchase them at most stores that sell computers and components.

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