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Logik LCX27WN2 When switching on the Logic Lcx27wn2 the screen lights up blue then goes black with no picture. there is sound.

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  • goldie1665 Oct 06, 2008

    Picture shows for a split second

    sound no picture

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5 Suggested Answers

johnychel
  • 796 Answers

SOURCE: logik tv lcx27wn2

A) Complete main module # 9-1674-01 subbed to new # 9-1674-03R=$250 CDN (LG Electronics) B) TX3200=Flyback # 95-4134-15/31=might be subbed to 95-4480=$65 CDN (LG Electronics) C) QX3200=HOT # 121-1167-01=$14 CDN (LG Electronics)=2SD1539=2SD2578=RCA # 242224=Philips # 4835 130 48074=NTE2302=ECG2302 D) CRX3412=115V B+ rectifier diode # 103-417-07/06A=$4 CDN (LG Electronics)=NTE580=ECG580 E) CX3412=115V B+ rectifier filter capacitor=100Uf,200V F) R3243=110/120 K ohm,1/2W (off the HOT’s collector) found underneath a 3 watt resistor G) Bleeder focus assembly/HV tripler block # A-17196-12/05=$168 CDN (LG Electronics) Other common failures for chassis:GZ: Bad solder connections in bridge and SMPS R3429=open=dead set IC3415 & IC3402=defective=dead set 120 K ohm resistors on crt driver boards module 9-1303

Posted on Jun 18, 2008

Pyrhyc
  • 2028 Answers

SOURCE: logik tv lcx27wn2 sound but no picture

the only info I could find on this is one withthe same problem. Replacingthe monitor had no effect and the store exchange it.

Posted on Jun 18, 2008

  • 1027 Answers

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: Blue to Black screen on Sony KP-57WV600

Rowdyroddy,

Thanks you so much for this info.

I had the same problem with my Sony KW-57wv600. Blue screen turns black after a few seconds, and then standby light flashes seven times.

I called a local TV technician, and described problem. I was told it would not be cost effective to fix. After reviewing the "simple" instructions given on www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html I figured I had nothing to lose.

10 minutes to remove front panel, a "very slight" turn of a screw, and TV worked again perfectly. I could not believe it!

Thank you so much for your help!

SHAME ON SONY FOR NOT POSTING THIS FIX ON THEIR WEBSITE! SHAME ON THE TECHNICIAN AT SONY WHICH INSISTED A SERVICE TECHNICIAN WAS REQUIRED.

I have always been a fan of Sony, swearing by Sony products exclusively. After this experience, I am now forced to consider some other options when purchasing electronics in the future.

Posted on Mar 04, 2009

  • 49 Answers

SOURCE: my logik lcxw30nn6 goes blank

Hi
Its your invertor thats gone mate
do a search on ebay a guy will fix for around £45

Posted on Mar 11, 2009

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1 Answer

Whats needed if logik tv model LCX27WN2 will not power on


Fault in the main power supply regulator board. 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.

Feb 24, 2015 | Televison & Video

3 Answers

Logik tv lcx27wn2


Please post the message that appears.

Jun 18, 2008 | Televison & Video

1 Answer

Logik LCX27WN2 switches to standby every time


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 tobuy and 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.4_12_2012_9_54_20_pm.jpg
caps in power supply puffed up on top like these

Apr 12, 2012 | Televison & Video

1 Answer

Ive lost the pin for my logik tv model no lcx27wn2


have you tried the usual 0000 default pin?

Apr 02, 2011 | Televison & Video

1 Answer

My logik lcx27wn2 tv has sound but no picture i have turned it off and on but still nothing


I know not of this specific model, but it is not uncommon for ribbon cables to become loose or dirty. It is usually pretty easy to pull a tv apart just remember where all screws and cables came from, and then reconnect them and power up before putting it back together, in case there is anything amiss. Ribbon cables can be easily rubbed clean with an eraser. or alcohol and Q-tip

Jan 31, 2010 | Televison & Video

2 Answers

Unlocking Logik TV set


If you have child lock on a logic tv. On your remote the bottom where the button is music / sound. Hold in for 5 minutes and the lock will come off

Jul 16, 2008 | 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

Logik tv lcx27wn2 sound but no picture


the only info I could find on this is one withthe same problem. Replacingthe monitor had no effect and the store exchange it.

Jun 18, 2008 | Televison & Video

5 Answers

No picture but has sound


My LG TV
switch on no picture but short period of sound then nothing

Jan 20, 2008 | Sony KP-51HW40 51" Rear Projection...

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