Question about Televison & Video

2 Answers

Acer AL2671W. Stuck in standby - 5v, 12v, 24v all correct. No response to front panel or remote control.

Posted by on

  • 1 more comment 
  • welshanorak Jul 10, 2008

    Yes +5v present. Still in standby - inverter does not toggle with 'on' switch.

  • welshanorak Jul 22, 2008

    Thanks - I was afraid that was the case!

    Glyn

  • Jaime Hernandez May 11, 2010

    You should also have +5v.

    Did you measure the voltages with the TV on?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Hi,
On main board (central one covered by heatsink), Measure on cold start voltage at tab of U42 if less than 1.75V replace U42 (You need a decent multimeter for this measurement.).
If you also have/had scrambled picture issues check C414 (470uF16V) near LVDS on main board.
Good luck...
SDS

Posted on Jun 11, 2012

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,294 Answers

If all the voltages appear normal, I would suspect a main failure because in many LCDs the power supply will power up only after all the voltages circulates through all the circuits and check OK.
You can also have the TV connected to the main power source and press the ON and monitor the voltages at the moment you press the ON button.

Posted on Jul 11, 2008

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

Need service manual for vizio model vf551xvt/vf5521xvt


It will be difficult to get this document over net; because, they don't have their on circuit design. all of it are borrowed. Contact the authorized service centre.

Dec 24, 2015 | Vizio VF551XVT 55 in. HDTV

1 Answer

Hi there, i have a baird lcd model j047baird\r\nthe fault i am having is, it stuck in stby. power supply look fine all voltage is there. if i disconnect the lead j5 from main board to invertor the screen...


there is 2 problems that makes this tv have standby fault.. so here they are,!

1.)main av board ---the 8 leg eeprom loses programing just under LVD CABLE TO SCREEN -£14.99 from a guy or if you can program yourself 4.99 for the flash to reprogram,.

2.)POWER SUPPLY FAULT IS MLT199TL PSU. (UA4)AREA, SG3525AN (16 leg) Regulating pulse width modulator.

the first fault all votage at psu will be there ,, 5v / 12v / 24v

the second fault psu will have 5v standby but no 12v or 24v this will stop the secondary from fireing up.. hope this helps.

Jul 31, 2011 | Televison & Video

1 Answer

When i go to turn my tv on all it does is blink that it is in standby mode. The individual i got it from had a surround sound system hooked up to it and i dont know if they have a remote. They are looking....


The first thing you need to do is to check whether your power supply is working well.
To do this, you need to open the back cover of your tv.
You can immediately reach the power supply. Test the power output using a multitester. There must be an output of 5v,12v, and 24v.
24v is for the screen to lit up.
5v is for the the cpu supply.
12v is for the audio...
You can repair the power supply if it is not functioning or buy a new power supply.
To repair the power supply repace the regulator transistor,the opto isolator, the ic that gives the signal to the opto isolator and check for open resistor near the regulators.

I hope this will help.

Feb 04, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Television keeps switching to stand by


first you check all secondary voltages in smps.ie.110v,24v, 12v and 5v.check horizental driver transformer and it's voltage.finally change standby transistors. thank you

Oct 08, 2010 | Televison & Video

3 Answers

Polaroid 26inch lcd tvred standby light on but power wont turn on. I've unplugged the tv, changed the batteries in the remote. The tv stays with the red standby light only.


You need to open it up and checking the voltages in the power supply sections, you should have 5v (for logic circuits), 12v for sound, 24v for backlight inverter circuits. Look for bad caps with bulging tops in power supply also.

Jan 12, 2010 | Polaroid FXM-2611C 26 in. LCD Television

8 Answers

Acer AL2671W stuck in standby


This too was my problem... ended up googling my heart out trying to find the solution to this problem and found a blog posting

"AL2671W Stuck in Standby Hey - I fixed a TV! It' s been a long time actually since I did something useful for someone. I got asked to look at an Acer AL2671W LCD TV. Bought for about £500 five years ago, and that was cheap then, recently it has regularly refused to come out of standby. Now it is stuck in Standby and won't work. So where do you start? Google of course! Some results showed that this was a common fault on these TV's. One guy in a forum said 'easy fix, replace C280 100uF 16V on the main board'. Good enough of a clue to take a look. You have to firstly remove the SCART socket block before the back will come off and then the inner metal cover over the PSU, audio card and main card as mentioned before. It looks just like a mini ATX card. It is a multi layer, double sided PEC with surface mount and traditional components. Bad news though, no C280 to be found. I buzzed through the front power switch to check it wasn't stuck and traced the cabling to the socket on the main board. Very close by the socket is C380, this is an electrolytic 100uF 16V. Too much of a coincidence? Anyway worth a punt I thought so I changed it for an 100uF 40V I think it was and re-assembled the TV. It worked! the TV now comes out of standby and has been returned to its owners. Result! Posted by andychamb"

I end up finding an old ATI card (since it was unsupported with win7) that had the same value capacitor and replaced C380, located around the centre, bottom left corner (the left one). works like a dream.

Jun 13, 2008 | Acer AL2671W 26 in. LCD Television

2 Answers

Sansui dvd recorder SAN0901


turn the power on. to get rid of the red light you need to press the timer/rec button on the remote until it turns off. the red light means it is programed to record.

Dec 01, 2007 | Sansui VRDVD4005 DVD Player/VCR

1 Answer

Daewoo DVRS04 DVD Recorder


problem is on your power board,replace elco on +5v ,-5v 12v, 24v

Nov 28, 2007 | Daewoo DVRS04 DVD Recorder/VCR

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

Related Topics:

152 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

71736 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

yadayada
yadayada

Level 3 Expert

68032 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...