Question about BenQ FP737S-D 17" LCD Monitor

1 Answer

Found them ah found them....so if i change these 4 will it make the screen work again?? do i test them as a normal transistor test ? can i test them in situ on board or remove to test ? many thanks for your help viziks....andy

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 105 Answers

If you are referring to the C5707 inverter driver transistors, you can test them in circuit with an ohmmeter. Usually one pair will show shorted although only one may be actually shorted. Normal procedure is to replace the pair that shows in circuit short. If you do not resolder the transformer connections your transistors will short again.
Monitor Mike

Posted on Jan 04, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

793MB flyback went off.


bad power supply, a blown out transistor,diode, but check horizontal output first..
take it out, then test again,,if its stops ,and power light comes on,, then change h-output transistor.

Mar 05, 2014 | Samsung SyncMaster Computer Monitors

1 Answer

Dell E173FP power led orange/flashing failure returns


First, you can get the service manual here: http://elektrotanya.com/
If the transistors failed again, yes the 0.22uf (part of tuned circuits for the inverter transformer oscillator circuits) changed value, the frequency will be off and causes over heat on the transistors due to too much current draw, You can also have bad inverter transformer, you can check the DC Ohm value but if it has one short turn, it will not show up on DC Ohm test, you have to use ringer testing (I use SENCORE LC75).
http://s807.photobucket.com/home/budm/allalbums

Mar 29, 2010 | Dell E173FP 17" LCD Monitor

2 Answers

Monitor LED blinking--no display--How to open the cabinet


check the vga cable if it is attached properly to your computer. Make sure that the VGA cable is connected to the Video Card that you are using.

check in the manual if you need to install the driver first.

also check if the monitor will work to another computer. If not, Then you can check the VGA Cable and replace a new one.

Hope this will help you out .. =)

Aug 24, 2009 | LG Studioworks 700S 17" CRT Monitor

3 Answers

Dell E152FPc Monitor powers up, and screen goes blank in 5-10 sec


ok every one there is a fix the are 4 transistor 2sc5707 and 2 transistorfu9024n and i cap 16v1000uf
if you replace these your problem will be fix for a while but to it better then dell replace the 2sc57o07 with radio shack tip3055 they are 15 amp trans instead of the low 8 amp dell uses they fail because the amps at the test for the transistor is more than 8amps all the correct parts are sold in a kit on ebay look up the 2sc5707 but i recommend upgrading to the tip3055 transistors they are a bigger transistor but you can lay them down and they work great. the capicator can be found at radio 35v1000uf is a good replacment make you monitor better because the new parts are stronger then the originals so no more failures after.

Jan 26, 2009 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

Monitor turn on but only a black background appears


Is that white substance heatsink greese that's been burned up or the transistor fried with some melted tape?

Jul 03, 2008 | Dell E173FP 17" LCD Monitor

6 Answers

BenQ FP731 17" LCD Monitor Problem


Connect it to another device, if you get the same result the backlight is bad! These can be replaced, but can be costly!

Nov 14, 2007 | BenQ FP731 17" LCD Monitor

6 Answers

Dell E172FPb 17" LCD Monitor Problem


Your inverter power supply has gone bad. You will need to replace the whole board or replace the the 2sc5707 transistors in the inverter area. Check out this link for installation videos and how to for that model
http://www.lcdrepair.us/Installation.html
They also sell the whole board as well as repair kits

Oct 27, 2007 | Dell E153FP 15" LCD Monitor

5 Answers

Horizontal output transistor keeps failing


The horizontal output transitor is always connected to the primary winding of the flyback transformer (via collector) and also to the horizontal deflection coil via an electrolytic capacitor. The most likely suspect for damaging the transistor is the fylback transformer. In some countries there are electronic stores that test flyback transformer by winding a few turns on the ferrite core and applying a test voltage. This test will only test the secondary. The primary winding is difficult to test for turn to turn short because the resistance is quite low and you do not know the 'good' resistance.

May 15, 2007 | ViewSonic E70f 17" CRT Monitor

6 Answers

Dell Blinking Power Light


Just wanted to say Thank You for the info on this site. I had the same problem as previously posted. When powered up, the monitor showed a fast flash of the desktop and then went black, with the power indicator flashing green. I read the posts, purchased the capacitors and the 4 - 2sc5707 transistors through ebay. I ordered them on the 6th and rec'd them today. I only had one bad capacitor and one transistor that checked bad, but I ordered 5 caps and 4 transistors. When ordering the caps be careful of the height of the caps. I found this to be a problem because I ordered the 50v, 105 degree Panasonic caps that didn't fit with the enclosure attached, so I used the 4 good caps removed previously and replaced the bad one with a 470uf, 50v. 85 degree cap from Rubycon I found among my spare parts. Installed the parts and the monitor is working properly (for the last two hours) so I'm happy for as long as the repair lasts. Thanks again for the info.

Dec 05, 2006 | Dell E173FP 17" LCD Monitor

Not finding what you are looking for?
BenQ FP737S-D 17" LCD Monitor Logo

Related Topics:

182 people viewed this question

Ask a Question

Usually answered in minutes!

Top BenQ Computer Monitors Experts

Tony

Level 3 Expert

2598 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a BenQ Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...