Question about ViewSonic E50C 15" CRT Monitor

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A HOIRIZENTAL LINE APPEARS WHEN THE MONITOR IS SWITCHED ON.LED LIT NORMALLY.NO VIDEO.NO HEATER VOLTS INDICATION SIGHTED AT THE BACK OF CRT.

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I have two monitors. One Samsung SyncMaster 2233 an one Samsung SyncMaster 2243. My problem is that the SyncMaster 2233 for some reason is totally black. I'm usually not terrible with these things, but my...


hello Gabriel

Could you check your SyncMaster 2233 for me and tell me your findings. If this monitor is connected from your computer and when both switch on, did the led indication lamp from your monitor lit steady green? or this lead indication lamp lit green then turns red?

1. If the led indication lamp lit steady green then there is nothing wrong with the settings, configurations, driver or hardware on your computer. The problem would be the backlight inverter lamp in your monitor is busted. Or it could be the inverter board that supplies high voltage for the backlight inverter lamp that is bad. You can replace the backlight inverter lamp located at the upper and lower part of the monitor with a replacement part you can purchase at shoppejimmy.com. Inverter board repair can be risky if you don't have the skill. Even opening the back cover of your monitor and replace by yourself the inverter lamp is risky too, could inflict more damage. you can bring it to a local professional service man.

2. If the led indication lamp lit green then turns red, then if not the video card the power supply section from your monitor is bad, you can replace polarized capacitor with same value. Just inspect and those with blown or leaking capacitor. You can also check the terminals and solder joints for the 15-pin vga terminal connector where vga cable is connected on your monitor. Resolder the terminals.

3. If the red indication lamp did not lit at all. Power supply section in the monitor is bad. You can check the output voltage from the power supply section. +5VDC is supplied for the main board and +24VDC is for the inverter board. Replace leaking or blown capacitor with same value.

Just remember, this should be done when computer and monitor is turn off
Post back if you have more questions. I am willing to give you assistance.

Feb 10, 2011 | Samsung SyncMaster 2233BW 22" LCD Monitor

3 Answers

I have the VE278Q which is connected by display port, every time i turn off my computer and then turn it back on the monitor can't be found, I have to unplug the display port cable, unplug the monitor,...


when you say monitor can't be found did you mean the monitor has no reactions when you turn on your pc?

here are some test you may need to do to know which part is faulty
1. Turn on your computer, did it display the monitor's logo on screen? When it does monitor is good, when only blank screen it could be the vga cable or the video card.
2. See if the led indication lit. When it lit to steady green, it's good signal is coming in from the video card. It should be followed by screen display. If no display it could be the backlight inverter lamp busted or faulty inverter board. When lit green then turns red, no signal coming from the video card. Check vga cable if fix properly to both monitor and video card. Or may need to reseat properly connection of video card from the motherboard. If no led indication lamp, then monitor is dead. Check ac power cord for continuity using multitester. Check power supply section in the monitor, replaced bulged or blown capacitor with exact value, this components were the first to get affected when lcd monitor failed o turn on.
3. When computer was turned on got display and then monitor turns black, go check the vga cable, Fix the connection properly or may need to replace it with new one.
4. When no signal appears or display blank screen after logo, then check video card. First remedy is to disconnect it the reseat properly to the motherboard. If this have no effect change your video card.

go follow these steps and let me know which is closely to your problem so I can give you a good advise.

Jan 30, 2011 | ASUS LCD Monitor

1 Answer

I HAVE SAMTROM MONITOR OF 56V IF I SWITCH ON COMPUTER IN CENTRE THE CONTROL LOCK APPEARS FOR HOW TO REMOVE IT IT STAYS NEAR 20 TO 30 MINUTES


get it repair or it would be wrost...because in this fault 5 volt regulator i.e 7805 gets malfunctioned and it may led to switch off your monitor.

Aug 21, 2010 | SAMTRON 55V 15" CRT Monitor

1 Answer

How do I turn it on


Hello.

To power on the Gateway VX750, press the power button on the front. The power button has 3 sides with a "G" in the middle.

The LED indicates the power status of the monitor.
  • Not lit - The monitor is turned off or does not have power connected.
  • Blinks one time and then goes off - The LED blinks one time when the monitor's power cord is plugged into an AC outlet to indicate that power is detected.
  • Lit solid blue - The monitor is turned on and active.
  • Blinking blue - The monitor is in power saving mode. Before entering power saving mode, a message briefly appears.
Hope this helps.

Aug 12, 2010 | Gateway VX750 (Black, Platinum) 17" CRT...

1 Answer

AOC color monitor model 5En...during power on all led lights blinks then stops blinking without display action. all led lights on no more action observed.


actually if u repair an aoc monitor alone without getting connected to cpu once u switch on the monitor all led's will lit on ( green light ) it will remain on situation until u connect the vga connector to cpu that's the time led's will lit off and only the power led will remain in green condition.some aoc 5en once u power on power led is in green condition and if not connected to cpu it will be in orange condition.hope u get some idea but i am not sure if it will work with ur monitor. but as long as LEDs lit on i think no problem with ur monitor.

Nov 02, 2009 | AOC 5 En 15" CRT Monitor

3 Answers

700e Lg crt monitor problam power on eht on but not display


The normal crt monitor have a demo display when you unplug the vga cable to PC like this image below.. fd6b6b9.jpg
Note:
If the crt monitor green LED light steady and heater beam have light, the horinzontal and High Voltage supplied to tube is completely good. If you encountered this problem just focus on video section of crt monitor. But before you start... find the flyback transformer behind this they have two controls screen & focus. After you found it plugin the monitor use plastic precision or small screw philip driver for safety to high voltage at horizontal area choose screen control rotate it to clockwise direction follow this....
5b5166c.jpg If the display responses or from dim to lighter 100% you have a problem to ABL find this at the bottom of horinzontal section near at flyback transformer pins trace the line of ABL for dried solder, open resistor if nothing happen find the Video IC at chroma section and replace it. follow this...
3c6e89c.jpg For LG & Redfox you found LM1269NA Visit this site for seaching semiconductor matches www.alldatasheet.com Good luck.

Check this site for searching semiconductor
www.alldatasheet.com

Aug 12, 2009 | LG Studioworks 700S 17" CRT Monitor

1 Answer

Screen suddenly goes blank


when you open your pc now,do you still hear a click sounds like you hear before ,when your computer has no problem yet? now there is no sounds .do the ff..
1.try to press the numlock key and observe it ,if the indicator LED lite on and off,the problem of your computer is your video card,
2.if you can't hear anything, when you open your unit and the indicator of your monitor goes the color orange,pls..check your memory .clean the memory and the memory slots using the contact cleaner .before you replace a new memory.
3. and try to use a another monitor,maybe your monitor has the problem.

Apr 01, 2008 | Samsung SyncMaster 551 15" CRT Monitor

1 Answer

I have to heat up my CRT


it is a weak cathode heater inside the CRT. One fix, besides what you are doing, is to replace the glass tube (crt) inside the monitor. Unless you can find a used one, may be hard to find now. It may also be possible to supply the heater filament with a separate supply. I believe this requires a 6 volt supply, so try adding a 10 volt (FUSED- 2 amp) supply to the filament only.

Nov 20, 2007 | Computers & Internet

2 Answers

No display


check the power cable, whether pluged well or not remove the monitor cable which is connected to your CPU only pluged the power cable and watch the LED status and let me know

Oct 10, 2007 | Proview PS 720F-1s (Silver, Steel Blue) 17...

1 Answer

The monitor would not turn on. Only the orange LED does.


1. Make sure the monitor cable is fully plugged into the computer. 2. If the new monitor works fine, The connection between the previous monitor and the PC was bad. Reconnect the original monitor to the PC and make sure that the connection is snug. Tighten down the video connectors until they are snug. Try again. good luck..

Jan 06, 2006 | Hitachi CM772 19 in.CRT Conventional...

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