Question about Mag Innovision LT776s 17" LCD Monitor
MAG 17 inch LCD Symptoms: 1: Monitor bulb stays on for a couple of seconds when power is turned on (to monitor) or when the display setting are changed from the control panel (from second monitor, running dual monitors). Example: if I change the refresh rate of the monitor it will light up for a couple of seconds. 2. I reset the monitor and this allowed it to stay lit for a small period of time but then problem returned. I then adjusted the brightness and found that the problem is related to this area. If I turn down the brightness below 70 percent it remains lit. The unit is about 11 months old. Is the bulb going bad? or the bulb controler? It is still under warranty so i should be able to have any repairs done for free. But the tech side of me wants to know what's causing this problem. Thanks for your help. Sincerely, Dean
This is a generic symptom that could happen to any LCD
The following is a generic answer applicable to most.
Two possible causes are bad capacitors or a bad light inside the LCD panel.
Open the unit and check to see if any of the capacitors in the power supply or other boards look domed or vented on the top.
Replace any capacitors accordingly. Use the same value capacitors. Most often, 1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
If this doesn’t solve the problem, try checking the surface-mount transistors on the inverter board that run the lights. Some times these transistors go bad. Check the area for any cracked or overheated ceramic or mylar capacitors.
Also, you may have a bad light inside the panel. This is tough to test without a spare light to use for troubleshooting.
You can take the panel apart and inspect the lamps but it is very tedious. It's tough enough to get them apart and back together again never mind keeping the layers clean. You have to try not to get any dust between the layers or you will see it in the picture.
There are usually two light fixtures each of which holds two lamps. One fixture is at the top and one at the bottom. Remove them one at a time and inspect the lamps to see if any are broken or very dark on the ends. If one looks out of place, it could be bad.
You'll have to find replacement lights on the net. It's not easy to replace them, but if you've gone this far, good luck. You should be able to get generic instructions off of the site that sells the lamps.
Posted on Mar 27, 2008
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 19, 2017 | Sony SDM-HS74P/S 17" LCD Monitor
Oct 15, 2010 | Sony SDM-HX73 17" Flat Panel LCD Monitor
Dec 14, 2009 | BenQ FP731 17" LCD Monitor
Jun 29, 2009 | Mag Innovision LT782S 17" Flat Panel LCD...
May 11, 2008 | Mag Innovision LT982s 19" Flat Panel LCD...
May 11, 2008 | Mag Innovision LT776s 17" LCD Monitor
Jan 19, 2008 | KDS K717s 17" LCD Monitor
Dec 31, 2007 | Mag Innovision LT976S 19" Flat Panel LCD...
108 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: