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SAMSUNG 400PXN MONITOR IS TURNING OFF AND ON ALL THE TIME

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Your high voltage power supply in the monitor is probably failing.
you will need to take it to a service center.

Posted on Apr 18, 2009

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Posted on Jan 02, 2017

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1 Answer

Samsung external monitor turns on briefly then goes black


Most likely it is a fault with the external monitor, either an inverter circuit board or the CCFL lamp.
To confirm if the laptop video card is faulty, connect another external monotor to the laptop and if the monitor is OK then it confirms the Samsung monitor is faulty.

Mar 31, 2012 | Computers & Internet

1 Answer

My new samsung 400pxn wont turn on it just keeps on making a continues clicking noise every 2 to 3 seconds and the power lights flicks on and off


This tv still under warrenty?Call Samsung for service.Ur tv the power supply board is dead.That the board where the power a/c cord plug into it.That is ur tv power supply board and is dead.It must require replacing.Tries websites like Shopjimmy.com,ebay.com to buy a refurbish power supply board for the replacemnt,if the tv is out of warrenty.

Jun 17, 2010 | Samsung SyncMaster 400PXN LCD TV

2 Answers

New Samsung monitor returns only a blank screen when turned on. what can I do?


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

Feb 04, 2009 | Samsung SyncMaster 910MP 19" LCD Monitor

1 Answer

SAMSUNG 56 V MONITOR DOES NOT TURN ON


1. change the 7805 reguletor ( cheak o/p voltage 5V comming or not )

2. solder the dry points in proccer , cristel

3. dry points in neck board.

Nov 17, 2008 | Computers & Internet

1 Answer

Samsung-SyncMaster-940MW power problems


I experience the same "power on" problem with mine, bought february 2007.

Just called the Dutch servicedesk of Samsung Electronics, just gave the serialnumber, next tuesday I will receive a new monitor.

Thumbs up this time for Samsung service

Sep 02, 2008 | Samsung SyncMaster 940MW 19" LCD Monitor

1 Answer

Samsunng 940mw lcd monitor will not power up. was blinking several times before it would turn on. now no power light nothing.


I experience the same "power on" problem with mine, bought february 2007.

Just called the Dutch servicedesk of Samsung Electronics, just gave the serialnumber, next tuesday I will receive a new monitor.

Thumbs up this time for Samsung service

Jul 21, 2008 | Samsung SyncMaster 940MW 19" LCD Monitor

1 Answer

No power but fuse ok


IF it is making a clicking noise it is the SUB PSU , the one that powers the embedded PC, there are 2 CAPACITORS on the PCB that will be domed at the top a 1000uf and 1500uf, they are on the secondary side , this is a common problem with this and the 460PXN (same psu) replace caps with higher voltage rating is my advice,!!! I did everything OK!!

Apr 25, 2008 | Samsung SyncMaster 400PXN LCD TV

2 Answers

Samsung 710N


hi, try with another crt monitor to check if the display card is ok..if that works fine then u will have to take it to the service center.. let me know..

Jan 10, 2008 | Samsung 710N V2 17" LCD Monitor

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