Question about Scanport H21 21" LCD Display Monitor

1 Answer

Scanport H21 problem.

Monitor turned black in 5-10 minutes after normal start. Green light is flashing. Power supply has outputĀ voltage up-down (both +5v and 12v). Power supply was fully tested outside the monitor (works absolutly normal). After disconnect from the power can be turned ON again in half hour with perfect image. Thanks for any input.
Serge
shapiros@thirteen.org

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Fried chips? Tech with electronic repair requested.

Posted on Sep 08, 2017

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MicrowaveSvc
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SOURCE: H21 LCD Monitor -No display

With that many boards, it probably has a separate ballast (inverter) to run the lamps. In the power supply section, I would look for bulging electrolytics and bad connections. In the ballast I would suspect a shorted output transistor, a bad output transformer, a bulging capacitor or bad connections.

Posted on Jan 21, 2007

  • 1 Answer

SOURCE: Need power supply board for H21 LCD monitor

H-21 scan port Dark Screen, If you unplug the green light flashes 2 or 3 times ending any activity until completely unpluged and plugged in again. My other scan port works fine using 1st monitor cables. I've used both ports on the graphics card. It's definately the monitor power supply or other componant.

Any ideas?

Bill

Posted on Nov 25, 2008

  • 1 Answer

SOURCE: Scanport N7 LCD Monitor won't stay on

it seems a whole lot of people have moniters with fatal ailments as i do as well. after spending $ 150.00 at computor stores & still had the same problem with my Moniter I just orderd another new moniter & the Problem is fixed..

I Think there killing moniters on purpose

Posted on Jun 17, 2009

  • 1684 Answers

SOURCE: how can i get a power cord for a scanport 17

Hello,

We carry the cords on our web site at: www.ccl-la.com

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Dec 29, 2009

prashanthcl
  • 460 Answers

SOURCE: power cord working but monitor not on

Your monitor has any hardware issue.you can check it from service center

Posted on Mar 24, 2010

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1 Answer

I've got a Scanport H21 monitor that the green light comes on but has a black screen. Can not dring up a menu or "VGA IN" message.


I am in computers. This is either a #1. display that is going out. #2. the video card fails some times, #3. or the monitor is not plugged in all the way. #4. The VGA cable is not firmly attached to the Momputer/monitor. Your VGA IN message that the computer does not have its signal to the monitor that the connection to the computer is good. God Bless
John

Apr 16, 2017 | Scanport H21 21" LCD Display Monitor

1 Answer

I've got a Scanport H21 monitor that the green light comes on but has a black screen. Can not dring up a menu or "VGA IN" message.


You can try a different cable for VGA. Check if the port is lose. The green light is only indicating a proper power supply to the monitor. The display is very much dependent on the VGA cable. If your monitor also has HDMI port, you can try to connect using that cable (provided the display adaptor also has HDMI port). If nothing works for you, take it to a hardware engineer or local repair shop.

Jan 20, 2014 | Scanport H21 21" LCD Display Monitor

1 Answer

I have to hold the power on button down for several minutes to get the monitor to turn on, it attempts to but only for a split second.


Capacitors failing to hold charge, pressing the power button allows flow of current to the capacitors on the power board, which are then leaking the current rather than "storing" it, there is therefore insufficient charge to power the inverter with the jiuce it needs to light the screen.

Check capacitors for bulging or leaking ( better still get someone who is comptent to do it) . remember do not touch capacitors until 24 hours after powering off, as the can still retain a charge

Feb 07, 2011 | Scanport H21 21" LCD Display Monitor

1 Answer

Ineed to buy power supply board 710 n


Hi,

If you are looking for where to buy power board on your monitor, i will advice you go to any computer accessories shop around your locality to get the power board or you can order online from amazon.com.

Take care.

Aug 07, 2010 | Scanport H21 21" LCD Display Monitor

1 Answer

Flat screen will not turn on.


Hello David,

This is a classic symptom of a blown power supply board. If you open the monitor and look at the power supply board you will find parts called capacitors with bulging tops, they blow out because of trapped heat in the case. We have pictures on our web site at: www.ccl-la.com/capacitors.htm that will show you what to look for and what you need to get for the repair job. If you don't want to do the repair yourself we do offer a repair service for $35 plus return shipping. Youcan contact us at tech@ccl-la.com if you need any more information about the repair.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Jan 25, 2010 | Scanport H21 21" LCD Display Monitor

1 Answer

Won't power on. have to click the power on and off sevral times.


could be a faulty cap in the power supply usually the 470uf cause start up problems

Jan 05, 2010 | Scanport H21 21" LCD Display Monitor

1 Answer

Need power supply board for H21 LCD monitor


H-21 scan port Dark Screen, If you unplug the green light flashes 2 or 3 times ending any activity until completely unpluged and plugged in again. My other scan port works fine using 1st monitor cables. I've used both ports on the graphics card. It's definately the monitor power supply or other componant.

Any ideas?

Bill

Nov 12, 2008 | Scanport H21 21" LCD Display Monitor

2 Answers

H21 LCD Monitor -No display


With that many boards, it probably has a separate ballast (inverter) to run the lamps. In the power supply section, I would look for bulging electrolytics and bad connections. In the ballast I would suspect a shorted output transistor, a bad output transformer, a bulging capacitor or bad connections.

Jan 19, 2007 | Scanport N9 19" LCD Monitor

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