Question about IBM ThinkVision L170 17" LCD Monitor

2 Answers

IBM LCD Monitor Model # 6734-ABO

Hi! How are you? This monitor was working perfectly when suddenly, No picture... Like the other posts pointed out, You can shine a flashlight at the screen and see the image, so something is wrong with the backlighting circuit. Now I have to assume that "caps" is an abreiviation for capacitors... There appears to be one board for graphics rendering and one dedicated to backlighting. I am an auto mechanic, not an elecs tech, but I would think if the problem were the back light bulbs, then all of them would not fail at once, correct? I have looked for a fuse in this unit and found nothing that resembles a conventional fuse anywhere. Is there a schematic available anywhere for this unit? What would the fuse look like? Which capacitors are responsible for the backlighting circuit? Thank you very much. Would just buy a new unit but am totally broke.
Adam Drennen

Posted by on

  • greatfull Oct 23, 2008

    same problem have you found a solution yet?



2 Answers

How would u test the capacitors on what setting?

Posted on Oct 04, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 293 Answers


Well, to look for a bad capacitors you need to tested with a ESR meter. But if you are lucky sometime you can spotted just by look at the top of a caps for stress mark (like it going to burst out). The caps look like a tiny battery, other look like a blue button with 2 pins. Sometime it not the caps's beyond repaired. Anyways, good lucks!

Posted on Oct 03, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician 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 repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Vaio LCD problem

Periods.......Nice little items because they denote the End of a sentence.
See how this works?

"I have a vgn cs36gj, I was working with it, suddenly the LCD became pale black, I connected it to external monitor and it has a picture, sometimes after turning on for 30 minutes LCD start working normally, but after turning off and disconnecting power when I turn it on, it only shows a pale black picture, you know it is on but only black!"

Now you try it.........

"I have a vgn cs36gj. I was working with it, suddenly the LCD became pale black.
I connected it to external monitor and it has a picture."

Okay, I got that part.........

"sometimes after turning on for 30 minutes LCD start working normally, but after turning off and disconnecting power when I turn it on, it only shows a pale black picture, you know it is on but only black!"

Laptop LCD?
External monitor LCD?
Man on the moon LCD?

1) If the external monitor LCD goes 'pale black', the problem is the graphics chipset.
This I do not believe

2) If the laptop LCD goes pale black, this I believe.

Post back in a Comment.


Apr 25, 2013 | Computers & Internet

1 Answer

Moniteur thinkvion 6734-ab0

i had the same trouble i changed 2 capacitors on the power supply board a 470uf at 25 volts and a 1000uf capacitor 25 volts.look for any capacitor where the top is bulged and replace them. my monitor works great again.

Jun 22, 2012 | IBM ThinkVision L170 17" LCD Monitor

1 Answer

How can i fix the continous on & off blinking of my ibm l170p monitor

If your monitor is blinking or flickering increase the refresh rate.

Apr 07, 2012 | IBM ThinkVision L170p 17" LCD Monitor

1 Answer

I have a type 6734-LB1 17" Lenovo ThinkVision

where will i get to install the software/drivers of IBM 6734-L-B-1 for listening Music

Sep 30, 2011 | IBM L170M (Black) 17 in. Flat Panel LCD...

1 Answer

Monitor IBM thinkvision 6734-ACO 17", turn OFF

Sounds to me your high voltage powersupply is out. To repair open monitor and remove high voltage powersupply. Inspect the caps on the board. Look for the ends of the caps to be mushroomed out. Replace these caps, usally 470 uf caps. Replace with 25volt caps. Might also be some 100uf caps as well. This is a common problem with all LCD monitors.

Jul 22, 2011 | IBM Computers & Internet

1 Answer

I have an image with the flashlight, but no backlighting on my IBM 6734 lcd monitor

The inverter module is bad or the back light behind the LCD screen has stopped working, I would suggest an estimate if you decide to have it repaired.

Jan 22, 2011 | IBM ThinkVision L170 17" LCD Monitor

1 Answer

Need a service manual for an IBM 6734-HB0 Monitor

MY IBM monitor is very dark screen even in setup menu at the start

Jan 26, 2010 | Computers & Internet

1 Answer

Lamp cicuits in lcd monitor

AnBparts ebay store is very helpful.

They have this IC in small qty.

I've made several purchases from them and they are very reliable.

Here's a link:

Boise LCD - monitor repair

Mar 16, 2009 | Computers & Internet

1 Answer

LCD flat panel monitor blinks logo over and over

Sounds like the LCD monitor is not getting a proper input signal. Check your cables between the computer and monitor. Replace them if need. Also check the pins and make sure that none are bent or disfigured.

Try a replacment monitor from a family member or friend. If their monitor works ok.....then your due for a replacment. The are very little user servicable parts inside.

Jan 23, 2009 | IBM ThinkVision L170 17" LCD Monitor

3 Answers

Good picture for 30 seconds then screen goes black with a faint ghost of the image

i hope the problem will be in LOT of the need to replace the LOT

Jun 14, 2007 | Mag Innovision LT576s 15" Flat Panel LCD...

Not finding what you are looking for?
IBM ThinkVision L170 17" LCD Monitor Logo

Related Topics:

855 people viewed this question

Ask a Question

Usually answered in minutes!

Top IBM Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18413 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you an IBM Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides