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How to mend techwood 42inch dead av box.

No power light just standby mode

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Posted on Jan 02, 2017

bestdarngood
  • 3037 Answers

SOURCE: techwood twp 4210 media box

DEAD AV BOX NO POWER LIGHT

UNPLUG FROM THE MAINS
UNSCREW THE TOP CASE
UNPLUG THE 2 SOCKETS REF PICTURE ( TECHWOOD AV BOX RESET AND UNPLUG )

LEAVE THEM UNPLUGED AND “PLEASE BE CAREFUL AT THIS POINT” SWITCH THE MAINS BACK ON AND SWITCH THE POWER ON THE AV BOX, IF YOU GET A RED LIGHT SWITCH THE SET OFF.(PLEASE NOTE THE RED LIGHT MAY NO ALWAYS COME ON, SO DONT BE ALARMED).

PLUG BOTH THE LEADS BACK IN AND SCREW TOP CASE BACK.

CONNECT ALL BACK UP AND YOU SHOULD BE WORKING NOW
JOB DONE HARD RESET.

Let me know if you need any further help

thank you for using fixya and good luck

Posted on Apr 15, 2008

  • 14 Answers

SOURCE: dead set no standby light power ok up to

Could be anything! From a main board to a power supply. I recommend getting service on it from a authorized sony service center. If standby light doesn't appear at all for any given time, then it maybe the power supply.

Posted on Jun 23, 2009

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1 Answer

My onkyo HT RC330 will not power up at all. Have had problems past couple of months with starting it but if you played around with swith it would start. Now nothing.


Try resetting the AV receiver To reset the AV receiver to its factory defaults, turn it on and, while holding down VCR/DVR, press 8 ON/STANDBY. "Clear" will appear on the display and the AV receiver will enter Standby mode.

It is possible that the protection circuitry has been activated. Remove the power cord from the wall.. Disconnect all speaker cables and input sources, and then leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect only the power cord and set the volume to maximum. If the AV receiver stays on, set then the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your dealer.

If the standby light is lit it and the unit will not boot it is most likely that the protection circuit has been activated. If there is no standby light then check the fuses. These units check that the power supplies are operating near specification. If a capacitor or resistor in the circuit, or a broken solder connection the unit will shut down. Because of the temperature the thermal cycling around the power supplies a broken solder joint can occur. This will make for an intermittent operation.

Hope this helps.
26289825-owoa52fq3dbvw0lom3ojbzgr-3-0.jpg Failed resistor or capacitor


26289825-owoa52fq3dbvw0lom3ojbzgr-3-2.jpg

26289825-owoa52fq3dbvw0lom3ojbzgr-3-5.jpg

Sep 23, 2016 | Onkyo Ht-rc330 5.1-channel Home Theater...

1 Answer

Techwood twp 4210 media box


DEAD AV BOX NO POWER LIGHT

UNPLUG FROM THE MAINS
UNSCREW THE TOP CASE
UNPLUG THE 2 SOCKETS REF PICTURE ( TECHWOOD AV BOX RESET AND UNPLUG )

LEAVE THEM UNPLUGED AND “PLEASE BE CAREFUL AT THIS POINT” SWITCH THE MAINS BACK ON AND SWITCH THE POWER ON THE AV BOX, IF YOU GET A RED LIGHT SWITCH THE SET OFF.(PLEASE NOTE THE RED LIGHT MAY NO ALWAYS COME ON, SO DONT BE ALARMED).

PLUG BOTH THE LEADS BACK IN AND SCREW TOP CASE BACK.

CONNECT ALL BACK UP AND YOU SHOULD BE WORKING NOW
JOB DONE HARD RESET.

Let me know if you need any further help

thank you for using fixya and good luck

Apr 15, 2008 | Televison & Video

1 Answer

My techwood freeview box was working i feel aaleep n woke to a black screen & my freeview box appears to be atuck in standby mode. Can you help please?


Hi Yvonne
"FreeView"
You must be in Australia. Like me.
I would assume that you have pulled the power out & reset the unit. I don't have the freeview box but they can be similar to other set top boxes.
Does the user manual indicate that holding down certain buttons on startup will cause a reset?
Some of these units have an internal backup battery to keep your parameters in memory. Often not user accessible.
But in emergency, the battery (if you find it) can be given a quick short with a jumper wire to reset it.
Otherwise You might need a tech to look at it or swap it out
Good Luck

Apr 02, 2015 | Televison & Video

1 Answer

Techwood TV won't turn on


no you just need a new power supply and mainboard in this unit!

Jan 21, 2013 | Televison & Video

2 Answers

A-SV640 KEEP GOING TO PROTECT MODE


Hi, try powering up the unit with out any speaker connected if it still goes to PROTECT try factory reset if possible.
To reset the AV receiver to its factory defaults, turn it on and, while holding down VCR/DVR, press ON/STANDBY. "Clear" will appear on the display and the AV receiver will enter standby mode.
If this does not fix your problem you should take your unit to service . :)

Dec 12, 2012 | Onkyo Audio Players & Recorders

1 Answer

I have a techwood tw4205 plasms tv, however the box turns on and the light goes green as does the light on the tv but no picture comes on what could this be please


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_17_2012_2_13_02_pm.jpg

May 16, 2012 | Televison & Video

2 Answers

Receiver stays on stand by


Turning On and Standby
On the AV receiver, press the [ON/STANDBY] button.
On the remote controller, press the [RECEIVER] button, followed by the
[ON/STANDBY] button.
The AV receiver comes on, the display lights up, and the STANDBY indicator goes off.
To turn the AV receiver off, press the [ON/STANDBY] button, or press the remote
controller's [ON/STANDBY] button. The AV receiver will enter Standby mode.

If you have any trouble using the receiver, a simple reset could solve your problem.Note that resetting the AV receiver will delete your radio presets and custom settings.
To reset the AV receiver to its factory defaults, turn it on and, while holding down the [VCR/DVR] button, press the [ON/STANDBY] button. "Clear" will appear on the display and the AV receiver will enter Standby mode.

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Hope you are satisfied with my solution.Your valuable feedback would be appreciated.Thanks for choosing Fixya.

TinuAlbinAlex

Jun 15, 2011 | Onkyo TX-SR307 A/V Receiver

1 Answer

Canrt seem to get a connection from box to the tv.all wires are in correct .have tried the hold the button untill it beeps twice an still no picture. platstation 3 3-275772-01


  1. Make sure the AV Cable is connected to the AV MULTI OUT port on the back of the PLAYSTATION 3 system. Connect the other end of the AV Cable into the yellow port for video, and into the white and red audio ports on the back of your TV.
  2. While the PLAYSTATION 3 system is in standby mode (red light on the front of the system), hold down the touch-sensitive ON/OFF button on the front of the system until the system goes into standby mode again . (So the light cycle would go from: red light to --> green light --> then back to red light) This will ensure that you have held down the On/Off button long enough to reset the Video Output Settings.
  3. Turn on the PLAYSTATION 3 system and once the system finishes powering up, the Video Output Settings will automatically be reset to the Standard Resolution (or detect the current display output settings of your TV/monitor).

Jun 25, 2010 | Sony Video Game Consoles & Games

1 Answer

Switched from HD tv to AV input tv and there is no picture on screen


try video reset

when ps3 is in standby mode(red light)
press and hold the power button till you hear a second beep.

standby mode press hold power........"beep"......"beep"..release power button

Oct 25, 2009 | Sony Playstation 3 (PS3) Console

1 Answer

My (Techwood 400 Watt Home Theater Receiver PLR85) won't turn on


I have had the same problem.

You have a faulty cooling fan.

The system senses the fan isn't working, and knows that without it, it will over-heat. So it goes into a "self-protect" mode - hence the green light.

You need to replace whatever part of your fan has gone bad.

Ryan
Franklin, IN.
MusicManRyan@hotmail.com

Jun 06, 2009 | Audio Players & Recorders

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