Question about ViewSonic PT810 21" CRT Monitor

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I am working on a Viewsonic PT810, FCC ID # GSS21000, that has the following symptoms: Hit power switch - power LED on front of monitor turns green - then LED turns red - then monitor and LED shuts off. This all happens within the course of 1 second. The monitor sounds like it is trying to start up. I hear HV crackling normally ect.... I do not have the service manual as yet so I would appreciate any direction I can get... Regards,

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Here are the service manuals: http://elektrotanya.com/?q=showresult&megnev=VIEWSONIC&megnev2=PT810&kategoria=monitor&kat2=schematics

Check the typical components: caps, H.O.T, solder joints, etc.

Posted on Oct 02, 2010

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1 Answer

Viewsonic 5230p video black banding with blue and then will clear up


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

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Sir i got a viewsonic lcd 19" model 1918 it


Hi,
Let the unit cool down for 30 min., give proper ventilation because your processor have a heat sensor, once reached the peak temp the unit will automatically shuts off. Keep away all the obstruction from your vent.
Let me know if the symptom is still there...
Thanks for using fixya.

Feb 02, 2011 | ViewSonic VX910 19" LCD Monitor

1 Answer

I have viewsonic va1912, when i plug it to my main outlet the led lgiht turns blinking green.... I already replaced some capacitors, 2200uF 10V, 1000uF 25V, 1000uF 10V, 220uF 25V but the still the same,...


What DC voltgae are you getting on the 10vdc rating caps, it should be 5vdc, and 12_18vdc on the 25vdc rating caps. You should check with the load such as 12v 1157 carbulb but do not hit the power button (make sure the power is off, the power supply is always running without the power switch activated) because we want to see if it will maitain 12v with external load not with the inverter circuits.

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

Oct 22, 2010 | ViewSonic VA1912wb Monitor

1 Answer

My monitor will not come on when power is applied automatically. the monitor does not come up when my system comes on. I just replaced the monitor which i swapped same exact monitor, but this one will not...


Please work through the following steps to troubleshoot your no power problem with a ViewSonic Monitor:

Troubleshooting Power Issues:
  • Disconnect and securely reconnect the Power Cable. Then retry the Power Switch.
  • Try using another Power Cable. Most Computers use a similar power cable.
  • Check the power source using another electrical device (like a radio) to make sure the power source is supplying sufficient voltage.
  • If the monitor is plugged into a power strip or extension cord, try connecting to a dedicated wall outlet.
  • If you are using a Thinpanel series LCD (e.g. VP191b, VP201b, etc) check the power switch next to the AC input port on the monitor and make sure it is ON.
  • If you are using an LCD TV, note that some models have a main power switch on the back side – confirm it is on the ON position.
  • If using a remote control, make sure the battery is properly installed.
If the LED is on, but there is no video, use the following links:
  • LCD or CRT monitors : Orange/Amber LED - monitor is receiving power, but no video signal received:
    • Verify that the computer is turned on. You can test this by pressing the Num Lock key on your keyboard once or twice. If the Num Lock light does not turn on/off, then the computer is not working.
    • Make sure the video cable supplied with the panel is tightly secured to the video card in the computer.
    • Check video cable to ensure all pins are straight. If the cable is detachable, try a different video cable
    • If your monitor is connected to a Laptop or Notebook computer, the video output on your laptop may be disabled. Consult your laptop’s user manual or contact the laptop manufacturer for assistance on enabling this feature.
    • Connect the monitor to a different computer system (if available) to see if the issue is with the video card or the monitor. Check the user's guide to see if any special conversion connector or adapter is required for proper signal continuity between the video card and the LCD.
    Red LED:
    • If the LED is Red and the monitor has no video (no picture), please try the display with another system.
    Green LED - A signal is detected from the video source:
    • Check the video cable to verify that the cable connection is good and the pins are not bent or broken.
  • LCD TVs
If you have tried the above steps and the problem persists, please Contact Technical Support at ViewSonic.

I hope this will allow you to resolve this issue. If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!

Mar 27, 2009 | ViewSonic E70f 17" CRT Monitor

1 Answer

My viewsonic monitor is not working


Considering the price of monitors versus the cost of repair. It would cost less to replace the monitor.

Mar 12, 2009 | MPC Computers Viewsonic E771 17 in.CRT...

1 Answer

Screen goes white after 12 seconds


Per the first hit on Google for 'viewsonic fades white', http://forums.worldofwarcraft.com/thread.html;jsessionid=A68BB7FE4AF6EC93EB730E8588C865A2?topicId=4064461903&sid=1
(which you should go on and read in another tab,) you need to contact Viewsonic about an inverter board (for the CCFL backlight) or switching your backlight to LED while spoofing the INVERTER_OK signal to keep the display from giving up as it does.

So...this should be a hint that you should respect others' time (or be moved to increase usability) better by searching for cures in similar Viewsonic monitors, and of course checking the obvious search terms.  Viewsonic evidently has a nifty knowledge base available for all on the web, so that one would be a nifty surprise.

Aug 18, 2008 | ViewSonic VX1945WM LCD Monitor

1 Answer

Monitor is on when computer boots up , then turns off


You can email rhartze@key-services.com and provide your telephone number... he will call you to assist.

Dec 13, 2007 | ViewSonic VA720 17" LCD Flat Panel Monitor

1 Answer

ViewSonic Monitor has trouble to wake up after been shut down?


Ok sounds to me like a power supply problem.. this a a fairly common symptom. I suggest that as a temporary fix you set the monitor to NOT turn the power off to the monitor in sleep mode if possible, in your power settings for the monitor.

Jul 24, 2007 | ViewSonic VX924 19" LCD Monitor

6 Answers

Blinking Light


+++++++++++++++++++++++++++++++++++++++++++
This is the same problem with my 4 VG800 Monitors, you should be able to find the correct capacitor on your monitors by following the same procedure, I'm sure the boards are similar. Just get the correct value capacitor and try it in parallel with the initial filter capacitors right after the DC power in.
+++++++++++++++++++++++++++++++++++++++++++

Alright, I had 4 VG800 monitors with the exact same problem. The front led is blinky OR constant reddish/orangish OR picture is white with colored vertical lines OR no picture with whistling from the back of the monitor and backlights illuminated. All problems have the same solution. You need to disassemble the monitor (2 screws on the back, remove lower front button panel, remove 2 screws holding panel in and remove speakers, then remove panel and unplug speakers. Now remove lots of tape and screws from the cover in the center of the monitor). Now that you've exposed the amplifier board and the VGA to LVDS board, you want to look for the pair of 25V 100microfarad capacitors that are nearby the DC power in (they are right next to the black "100" inductor). Desolder the capacitor farthest from the DC jack and replace with an electrolytic with the same specifications. If you want to check that this is the correct solution please put the new capacitor (WATCH THE POLARITY) in parallel with the capacitor there want watch the front panel indicator go green and the monitor work properly.

I'll be posting and Instructable entry in the next few days on the process, watch for the username Waterppk on the website www.instructables.com

-Chris

Dec 11, 2006 | ViewSonic VX910 19" LCD Monitor

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