Monitor intermittently goes dark and will not come on
Having problems for about a week, monitor may jump or flash, once a white type light up the middle of the screen, then goes black. If i turn the pc off, unplug everything and wait 45 minutes or so, it may come back on. is the monitor going out? I've had about 3 years - do I need to update a driver or something? I have checked all the ''power source'' /connection problems and that's all ok.
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satservice, What happens AFTER 15 min of FLASHING?? What did unit do or act like 3-4 weeks ago? Is the screen both BLACK and BLANK? or is screen just black and you can SEE win-desktop if you shine a bright flashlight 1 inch from screen at differnt angles? Can you use your Samsung warranty? Will monitor do same when connected to different KNOWN GOOD prebooted to desktop PC? Are you refering to the "power ON" indicator light on front BEZEL as the FLASHING thing? Need more info, but I suspect "shutdown of units "switch-mode-power-supply" due to detection of FAULT CONDITION having been detected with other circuit or with itself. Read some of my other responses in my fixya profile that deal with BLACK SCREEN repair. If this response useful, rate on fixya. 12fixlouie
I tried the reset procedure, i've left it unplugged now for a week and upon ...Now the fifth died. This time, no illumination, just flashing blue light. ...The screen is completely black, the power button is dark blue and no amount of ... The monitor was gone for about 2 weeks (maybe 3) I left it plugged in and ... deliverator.silverfir.net/?p=369
The high pitch sound is coming from the inverter. It is faulty and needs to be repaired or replaced. The inverter supplies high voltage to the CCFL lamp, this lamp gives the backlight to the LCD so you can see the LCD images.
Check out LCD parts for parts, service and DIY info. use this link :- www.lcdparts.net
This monitor is know for a lot of parts that go bad, luckily they are usually the same ones.
If you are a technician or know one who can help you. Below is a list of part to repair/replace once the case is opened. (dont try this if your unfamilier with working on electronics.
1) F601= 2A Fuse 2) C605= 68uf 400v (must change) 3) R615= 0.68ohm 1watt 4) Q601= SSS6N60A 5) R613= 1Kohm 1/8watt (value changed to 2.3Kohm or higher) 6) R623= 4.7ohm 1/8watt (value changed to 7.2ohm or higher) 7) D604= 1N4148 8) IC601=UC3842B 9) C707 & C703= 1000uF 16V (must change, because of bad ESR value) secondary filter capacitor.
This problem of dell e151fp lcd monitor, you just need to resolder the inverter section (bad points or dry joint) and also check the capacitor value with ESR meter. It will solve your problems.
I had the same problem for about a week and solved it yesterday by
downloading the latest driver by NVDIA who makes my video card (NVDIA
I had previously updated the latest Sony driver for the monitor. It did
not solve the problem but could be part of the solution in conjunction
with the new video card driver.
Assuming you've already checked your driver and system settings, tried a different monitor, and checked the cable and connector pins, this would almost certainly be a problem with the power or signal circuit board inside the monitor.