Question about Samsung SyncMaster 740BX Monitor

3 Answers

Samsung sync master 740n have power no display can you help me?

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  • Adrian Papa
    Adrian Papa Jul 12, 2009

    what is inverter? ty

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Even after replacing the capacitors still same what else could be the problem???

Posted on Jul 23, 2012

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Hello
I am a technician-informatic. I have repaired about 80 Lcd Samsung monitors with theese problems. I offer the repair manual.
Manual has been done with the experience of the repairing Samsung Lcd monitors. Manual was made by me and shows how to open monitor, how
to solve dark screen problem, how to check and replace capacitors, how to solve the problem non-optimal mode (without reprogramming MCU or
changing the main board) photo are included. 100% functional. The repair process is very simple 30-40min. (does not need a lot of
experience in electronics and expensive instruments) and is not expensive. With this manual you can solve problems by yourself and save
money.

"Not Optimum Mode 1280x1024 60Hz"
- The monitor turns on but turns off by itself, the LED blinks green.
- If you detach from the PC points to "control cable" the picture runs continuously in the vertical direction or presents while line , and
as soon as it is reconnected, the monitor goes off.
- The monitor does not turns on and dont dispaly anything, the LED blinks green-lit, if you detach from pc points to "control cable".
- The monitor turns on, works well some time, but after a window apiers "Not optimum mode. Mode recommended 1280X1024 60Hz"
- The monitor turns on, works well only with low resolution 800x600, when try to change a window that reads "Not optimum mode. Mode
recommended 1280X1024 60Hz"

the manual you can find on ebay (my ebay name is asnerejas123):
Samsung monitor repair manual guide 710n,913v,510n more
220498646211
Riparazione - repair Lcd Samsung monitor 710n,913v,510n
220498645860
Reparaturhandbuch für Samsung 710n,913v,510n und andere
220499443698

Posted on Oct 27, 2009

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  • 34 Answers

Replace the inverter

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: Samsung sync master 740N no

Yes, look for two 1000uf capacitors on the power supply PCB near the output cable to the main PCB. They will have swelling and discolouration. Replace those and should fix your problem.

Posted on Oct 06, 2010

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1 Answer

Samsung LCD monitor Model 740N no display.


pls chek 1000/25cap ,and inverter fuse, and 5402 ics

Jan 11, 2013 | Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

White spot at the bottom of my samsung sync Master 153v monitor.it is quite disturbing please help in sorting out the issue


is it a large spot or just a pixel??
if it a large spot most likely the screen has been damage in someway, either something hit it and damged the lcd. if it just a pixel there nothing much you can do but replace the whole screen.

the same goes for the larger spot. you just have to replace the screen.

check on ebay for prices you can get a good deal.

I’m happy to help further over the phone at https://www.6ya.com/expert/david_92c86cbc79e9b552

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2 Answers

Samsung sync master 740N no display. Flickered started then the display goes after its been on for a short wile. Could this be a problem with the capacitors?


Yes, look for two 1000uf capacitors on the power supply PCB near the output cable to the main PCB. They will have swelling and discolouration. Replace those and should fix your problem.

Oct 06, 2010 | Samsung SyncMaster 740N 17" LCD Monitor

2 Answers

Hi, I am having Samsung LCD sync master 943nwx, after power on momentarily display is coming and going,


it may simply be a lose connection with the monitor cord. or the monitor cord may to be replaced.

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