Having problems with your Samsung SyncMaster 940N Flat panel Monitor ?
Samsung SyncMaster 940n monitor that turns on then goes black
\015 I have a Samsung SyncMaster 940n monitor, three years old, it comes on for 5-6 seconds then turns black. It doesn't attain the normal blue color before going black. Other posts suggest needing to replace a capacitor and fuse. Is this what I need to do? And what is a good source for these parts?\015
Rcpips, You may need to replace one or possibly 5 -8 aluminum can "electrolytic filter capacitors" on the "switch-mode-power-supply/CCFL inverter board. If, as you say "works for 5 or 6 seconds" then that means that fuse is good. Another thing you will need to inspect SMPS board for is "cold" "frosty looking" solder joints where the components (surface mount or through hole) are soldered to the copper circuit traces. May need large magnifying glass or low power inspection microscope to locate them. Resolder any that look bad or loose. Some solder joints have thinner than "hair" thermal fractures that can also cause YOUR TYPE OF SYMPTOM!! PARTS: digikey. mouser. newark. and possibly Radio Shack. If buying filter capacitors, make sure they are rated 105 deg C only!! NOT 85 deg C!!! If caps need to be replaced (swollen, leaky) be sure to tell us the brand name you find installed on your unit! CAPXON, ELITE, JUN-FU are just 3 that you don"t want to find in your unit. BAD news if you do!! If DIY suits you, remember to document with "close-up" digital stills your unit tear-down, so you can reassemble unit without any "extra" parts laying on kitchen table!! Filter capacitors are polarized. You put them in + to +, - to -!!! if you put them in backwards they go BOOOOMMM!!! Hope this helps a little. lmistyrel on aim or 12fixlouie at fixya.
Repair Help & Product Troubleshooting for Samsung SyncMaster 940N Flat panel Monitor
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.
Suggested Questions/Answers :
Samsung SyncMaster 940n monitor that turns on then goes black
Rcpips, You may need to replace one or possibly 5 -8 aluminum can "electrolytic filter capacitors" on the "switch-mode-power-supply/CCFL inverter board. If, as you say "works for 5 or 6 seconds" then that means that fuse is good. Another thing you wi ... Samsung SyncMaster 940N Flat panel Monitor
Samsung SyncMaster 17" LCD Blacks out
If you have a second monitor, you could use your computer until the monitor goes black... then plug in a replacement monitor. My guess is that one will display black too...\015\012\015\012My gut feeling is that your VGA card is on the fri ... Samsung SyncMaster 17" LCD Monitor
Monitor is going out...
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 m ... Samsung SyncMaster 940N Flat panel Monitor
Samsung SyncMaster 215tw screen goes black after about 1 sec.
I have the same problem its defenitly a problem with the lcd monitor not with the graphics card nor the pc. I hooked up the digital and afterwards the vga connection both had the same result. 1 s perfect screen all visible but than black. pushing the ... Samsung 215TW SyncMaster 21" LCD Monitor
My samsung t220 turns on then goes black
... Samsung SyncMaster T200 LCD Monitor
Samsung SyncMaster 710N Monitor SLEEP MODE
Hello,\015\012\015\012The monitor is not going to sleep the power supply board is shutting down.\015\012If you can solder you should be able to repair the monitor yourself.\015\012The problem is caused by blown capacitors on the power boa ... Samsung SyncMaster 710N 17 in. Flat Panel LCD Monitor
Monitor goes blank after 3 seconds -Samsung SyncMaster 920NW
Hello i have the same problem, there are 4 lamps (bulbs) inside the monitor when some of them falls the system turn off, cheks and good look ... Samsung SyncMaster 920NW Monitor
Syncmaster 910t blinks image perfectly once and goes back to black
I've had same problem and I fixed it!With good CCFLs, clean supplying voltages, all good capacitors and resoldered junctions, the backlight still turns on for fraction of second and goes off.It is in the Power Supply / Inverter board. In ... Samsung SyncMaster 910T 19" LCD Monitor
Monitor Issue: 5 seconds of picture the monitor goes black.
I had this similar problem. I found out that there was a bad 1000uf, 16V cap on the power supply board. The cap is too close to a heat sink and over heated. I bought the cap at radio shack for $2, installed it so that it is far away from the heat ... Computer Monitors
Syncmaster 226bw goes black
I think u have a problem with ur display,please contact ur service centre immediately to fix it. ... Gateway FPD2275W LCD Monitor
Screen goes blank when I move the mouse
Did it work properly using a VGA (analog) cable? If so, check your DVI (digital) cable against the pictures at the bottom of http://www.datapro.net/techinfo/dvi_i ... Samsung SyncMaster 204B 20.1" LCD Monitor
Half of the screen is black - Samsung SynchMaster 710N
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 m ... Samsung SyncMaster 710N 17" LCD Monitor
Samsung SyncMaster 173s turns on then 3 seconds later goes black
... Computer Monitors
My Samsung SyncMaster 910mp shuts down completely during work sessions. The screen goes completely black, the the green light that shows that the monitor is on goes off as if the monitor was turned off. I unplug the AC cord and re-plug it, it comes back on (after numerous tries). When it works the display is great, but finding the right "spot" is getting to be a chore. Is there a solution?
Please check your menu settings at your monitor and reset it to factory default,,, it seems the settings was config ... Samsung SyncMaster 910MP 19" LCD Monitor
Samsung SyncMaster 174v will display image for 2 seconds then go black. When I turn monitor off and then on again, it displays image with normal brightness for 2 seconds and then goes black. When I plug the monitor into another computer it does the same thing.
Hi\012\012\012\012\012\012 \012 Normal\012 0\012 \012 \012 false\012 false\012 false\012 \012 \012 \012 \012 \012 \012 \012 MicrosoftInternetExplorer4\012 \012\012 \012 \012\012\012\012\012\012 /* Style Definitions */\012 ta ... Computer Monitors
Samsung syncmaster 711p power issue
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 m ... Samsung SyncMaster 931B 19" LCD Monitor
Ground Noise Problem Possibly Attributed to Samsung Monitor
Do you have another power adapter to try? Sometimes those go bad, and are pretty cheap to test out (around $35-$50). Otherwise it is the DC-in board on your PowerBook. I replace about 2 of those per month with our clients up here on the PowerBooks ... Samsung Syncmaster 730B 17" Flat Panel LCD Monitor
Samsung SyncMaster 193s LCD monitor turns black after 2 seconds? The power stays on but the screen goes black after a couple secs of seeing exactly what I'm supposed to see. I turn it off, then right back on and repeat the process. I've never installed a driver or any software for it, but it has worked fine for a couple years 'til one day last week?
... Samsung SyncMaster 193S
Monitor turns off after 4-5 seconds
... Samsung SyncMaster 920WM LCD Monitor
I have a SyncMaster 204 T that the back light wont always light
Look for bad caps in the power supply first, see example of failed SAMSUNG monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums\0 ... Samsung SyncMaster 204T Monitor
I have a samsung Syncmaster 2343 and I can turn it on just fine and my computer recognizes that it's hooked to a moniter but the moniter shows the screen for a few seconds and then it all goes black. It's still on and still connected (blue light not flashing, just solid on) and I can still do stuff I just can't see anything on the screen. I'm working on an apple 10.5.8 laptop computer and the screen had been working fine for several months before this happened. It was working perfectly, I went t
If your up to opening the monitor it would do you well to look. It sounds close to what I experienced.Refer to Problems with Samsung SyncMaster 2053bw for info on opening. ... Computer Monitors
Sansung monitor going black!!
Hello, I have done some research about your product. If you have checked all the cables and connections to make sure the pins are not bent and cables are connected properly, etc. You stated that you hooked the monitor up to a different comput ... Samsung SyncMaster 216BW Monitor
Why does my monitor display go from 32 bit to 8 bit after bootup?
I'm havint the same problem. I tried drivers and a new card but had no sussess. It's a Dell 23" on XP-Pro ... PC Desktops
Samsung syncmaster 931a... connected to computer
Hi,\015\012its unlikely to be the cable. Most likely cause of this is a faulty inverter board. If you are lucky it will only be 1 or 2 blown capacitors which are easily identifiable and replaceable once you have got inside it. it could however, be al ... Computer Monitors
MY SAMSUNG SYNCMASTER MONITOR SCREEN DOES NOT COME ON WHEN I TRY TURNING IT ON. HOWEVER THE POWER BUTTON BLINKS GREEN. ANY ADVICE? THANKS SAMSUNG SYNCMASTER Monitor (black) 739S O seen at the back
The cable connecting to the PC might be loose, or the part entering the monitor could be.Try turning the monitor on, and after a few seconds, turn on the computer. You should be able to see the BIOS POST screen text flashing by. If you ca ... Computer Monitors