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My Techwood TV, TWD 17LW1 has an intermittent fault - it goes to a blank screen with no sound, and the LED on the front goes to flashing red. Switching the power off and then on again often cures the fault, for a little while. Any ideas?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: red light on power button flashes, but no picture....blank screen

I would suspect a problem in either the backlight assembly, or the power supply that drives it. If it's the power supply, the part may be over $100.

Posted on Jan 18, 2007

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SOURCE: sound but no picture

Most likely - the CCFL backlight is not getting the power it needs to come on. You can verify by shining a light on the front surface of the set - if you can just make out a dim image, then that is it. On some sets, the CCFL can be seen through the vents on the rear.

Posted on Jun 19, 2008

  • 1 Answer

SOURCE: Philips 42PF7220A/37 42'' TV (LED flashes red 7 times)

Five buck solution; If you have any tek skills at all and are feeling adventurous; UNPLUG THE POWER, remove the back panel; You will be faced with the mainboard. In the lower right quadrant you will see two small capacitors, like tiny yellowish coke cans. If these are bulging, there lies your problem. These must be replaced. If you have no soldering skills, take only the mainboard to a fixit shop and have them solder in the two capacitors easily found on line. No guarantee's but worth a try

Posted on Dec 14, 2009

  • 1 Answer

SOURCE: cello l2232af power supply fault, when switching

I had this same problem with my 23" cello TV. It was a problem with the internal power supply - specifically the 12V output. It had fallen to 5V. I noticed that the three electrolytic capacitors (EC7 EC8 & EC9) had bulging tops as though they had been damaged. I replaced these and my TV is now working again although I don't know how long it will last. The three capacitors were 1000uf 16V types. I replaced them with 35V versions (which are physically bigger and a tight squeeze). Your TV repair shop should be able to replace these faulty components in under an hour.

Posted on Dec 19, 2009

  • 1 Answer

SOURCE: I need a universal remote

Did you ever get an answer to this? I'm having the same problem.

Posted on Dec 14, 2010

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My techwood tv won't turn on, the red standby light is on but flashes 7 times then goes off any hints to what the problem is


hi sounds like a power supply fault, swoolen capacitors normally cause this,but a bad mainboard can also cause this fault, thanks

shaun

Mar 20, 2017 | Televison & Video

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Blank screen, led lights flashes for a while and thn all three flash. also cannot turn off at tv or with remote. have to unplug


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1 Answer

Panasonic TC-P50VT20 blank screen with vertical lines


If you wish to get some details; visit the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Apr 05, 2017 | Panasonic Televison & Video

1 Answer

Is the Techwood TWD 17LW1 television set for digital signals


Refer its specification page of the user manual. To download the user manual, visit the site given below.
www.retrevo.com/
Gopakumar Gopalan Google

Feb 08, 2015 | Televison & Video

1 Answer

No picture no sound. Red led blinks once relay clicks once and repeats


These blinks [flashes] are fault indication. You can get an idea about the faulty stage circuit inside the TV, by the number of these blinks. Count it carefully, by switching it ON and OFF, more than 2 times at least, so that, you can make sure about the number of these blinks. If you wish to get more details, check the site linked here. Surf the site in "MOSAIC" view.
http://electronicshelponline.blogspot.com/

Jan 25, 2014 | Sony KV-XF34M65 34" TV

1 Answer

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What is the exact model number to your Bush TV?

Apr 24, 2012 | Televison & Video

1 Answer

Sound but no picture


Most likely - the CCFL backlight is not getting the power it needs to come on. You can verify by shining a light on the front surface of the set - if you can just make out a dim image, then that is it. On some sets, the CCFL can be seen through the vents on the rear.

Jun 18, 2008 | Televison & Video

1 Answer

Hitachi 61UWX10B 61 in | TV will not turn on


If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:
  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system1.gif. If it finds that there truly is a problem, then the set is shut down and the LED will again flash.

Jan 30, 2008 | Hitachi 61UWX10B 61" Rear Projection...

2 Answers

Hitachi 61UDX10B









[BRAND SPECIFIC][TOSHIBA][QUICK FIXES]
Flashing LED
<< Back to Quick Fixes Page
If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:
  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash.

Jan 22, 2008 | Hitachi 61UWX10B 61" Rear Projection...

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