Waking up a monitor

Mongo

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I am working on a Medium Res NT-2701 with horizontal collapse. I think I have the problem fixed but I don't have a medium res game to test with. Since my fix should be pretty evident with just about any signal, I tried to power up the monitor to see if I was getting full deflection. It appears the monitor won't "wake up" unless it sees a specific signal. What signal is it and how do I trick the monitor to force it to come on?
 
If it's anything like a PC monitor, it's looking for a valid sync signal. That's how "powersave" mode on PC monitors works, by the way - the PC stops outputting a sync signal, which triggers the monitor to shut down into sleep mode.

Alternatively, you could scream "WAKE UP!!!" really loud at the picture tube. It won't make the monitor work, but it'll make you feel better.

-Ian
 
Yeah... I was hoping I didn't need a perfect sync signal (since I didn't have one) to wake up the monitor. Alternately, I was hoping that simply grounding the sync input or something like that would bring the monitor up but I don't like to just go around grounding things...

There was screaming going on but it was due to the monitor now completely losing deflection. I never did solve the sync/wake up problem. I just put together a JAMMA harness with a Medium Res board to get it working....

Anyone have an idea regarding losing both vertical and horizontal deflection? IC401 perhaps?
 
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