Having problems with your Samsung SyncMaster 740b 17" LCD Monitor ?

Blank screen i have 3 samsung 740B 17" monitors its been 2 years and i have 2 down,both source buttons light up telling me power is good.ive tried different monitor with the same cpu and it works fine. i have 7 work stations at my work 4 have dell monitors running for 5 years +, and 3 are samsung,which i only have 1 left working now. only had them for 2 years. just woundering if theres anything i can try or are they garbage?


Answers :

Hello
\015\012I 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
\015\012to solve dark screen problem, how to check and replace capacitors, how to solve the problem non-optimal mode (without reprogramming MCU or
\015\012changing the main board) photo are included. 100% functional. The repair process is very simple 30-40min. (does not need a lot of
\015\012experience in electronics and expensive instruments) and is not expensive. With this manual you can solve problems by yourself and save
\015\012money.
\015\012
"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
\015\012as 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
\015\012recommended 1280X1024 60Hz"
\015\012
\015\012the manual you can find on ebay (my ebay name is asnerejas123):
\015\012Samsung monitor repair manual guide 710n,913v,510n more
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\015\012Riparazione - repair Lcd Samsung monitor 710n,913v,510n
220498645860
\015\012Reparaturhandbuch für Samsung 710n,913v,510n und andere
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Hallo mckay14,
\015\012
\015\012Seems I having the same problem, I have resoled the problem by opening the screen from the top and you’ll see on the left of the center the output cable. Now there are two things you can do:
\015\0121. Computer must be running and the LCD connected, go with your fingers inside the top opened screen and disconnect only the left side of the output. You’ll see that the screen will turn white now, put the cable back in inside now and presto it is working again.
\015\0122. Take out this cable and cut the 4 left wires, extent the cable and use as 4-way switch. Now you can use the switch in the same way, when you switch off wait for the screen to turn white and then switch it on.
\015\012
\015\012You do not have to worry that you will get a shock when you put you fingers inside as that in that area only data is transfers, in other word low power on electric.
\015\012
\015\012But that is not all, I can even tell you “how did this happen?”
\015\012It seems that the Samsung 740b has a problem with changing the refresh rate, was your refresh rate was @70, @72 or @75, this is not standard supported and causing this malfunction.
\015\012
\015\012Now there can be a third solution without opening the screen, the Samsung 740b has a DVI input. If one of your computers has a DVI output graphic card then try that as it is using a digital signal. I have high hope for this but I do not have DVI output...
\015\012
\015\012
\015\012With kind Regards,
\015\012CrazyLex.
Repair Help & Product Troubleshooting for Samsung SyncMaster 740b 17" LCD Monitor

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