My Mag LT776s is several years old. The display is is normal for 5 mins or so, then the screen goes black. The power button led goes from green to amber. If I power off and on I get a normal display that shuts down after a minute or two. Hit the off/on switch again and I get a 30 second display before the screen goes black.
Would an overheated power supply do this? I hate to shell out $30 for a new power supply and then find out some other chip or board is faulty instead.
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No, it has a normal, seperate power cord. But the socket in the monitor is very small, it's a small round one. When facing the monitor from the back, it's located directly to the right of the monitor-stand, at the bottom-side of the screen. Just put the monitor on it's side to see it clearly.
Is the green light on (still indicationg power?
Ist put your ear to it and switch on - hear any buzzing?
Most like the HV Fluro Inverter for the lamps has an issue. For some the 2SC5707 may have gone - common.
I have the same problem with a customer's monitor (LT716S); it turned out to be damaged power supply board. As I understand it, MAG has a 3 year warranty on parts, will probably charge you a flat labor fee plus shipping. If you do not have your purchase documentation for warranty, dump it and replace. If you can, then you may wish to have it repaired.
My customer replaced theirs; I am trying to purchase replacement parts to repair...good luck.
Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages. Good Luck!
This is not quite clear.
You say no image at home or at school
but worked at the store
Did you see it working at the store?
Check the cord sonnector for bent pins and or replace the cord- then come back
I have the same problem except it usually happens after Ive left my computer idle for a while... i.e . Overnight, I usually turn off the monitor and I hit the button after I come back to turn it on. I get the same flashing light for several minutes. This has been a problem for several months, but only recenly have i gotten the same error message you mentioned. Each time ive booted the computer up cold or restarted it has worked fine but this time it took longer along with displaying the message:
Top Left to Right: SH770 P001
Bottom Left to Right: AU M170EN05
Anyone else who can clear this up?