lethal enforcers monitor dead?

tinsley

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i just picked up a lethal enforcers game. the machine powers up (the marquee lights up, the coin op light up) but the monitor does nothing. when powered off, i can see the monitor make a odd color, then it fades away. now, i am new to arcade games so i am wondering what to look for to try and locate the problem. i really have no clue where to even start. it appears to be a phillips monitor, not sure of model # though...
 
Does the game play "blind" ?
(can you hear it, coin it up, etc)

And Philips is most likely the "tube" manufacturer, not the chassis which is what would be needed.
But from your description it almost sounds more like there is no game signal.
 
i just noticed that you can not hear anything. so like you said, i guess there may be no game signal. hmm, where to start at now?
 
Got a volt meter ?
Check the power supply.
I would think it has a general switching power supply in it.
+5v -5v +12v DC
 
i just noticed that you can not hear anything. so like you said, i guess there may be no game signal. hmm, where to start at now?
It could be a lethal enforcers board with bad sound section. If this is the case you might not hear anything at all. You should check the voltages on the harness or if it's a dedicated version or at the switcher itself if it's a conversion.

You might want to try removing the back cover on the game and then powering up the game. If you can see a faint orange glow in the neck of the tube then the game pcb might be your problem.
 
Ah, I always forget about the potential of the bad Konami sound glob.

when powered off, i can see the monitor make a odd color, then it fades away.

That statement is what makes me initially think the monitor is coming on and turning off normally.
But as suggested, open the cabinet and see if the heater in the tube neck is staying on. (glowing orange)
 
Depending on the monitor type, the glob you see in the center of the screen is usually due to a loose wire or poor connection between the chassis and the neckboard (or pots in between), sometimes to the focus pin of the socket...
 
there is no neck glow on this. what should i look at to fix this issue? cap kit? flyback? i have never attempted anything with a monitor, so all of this will be an experience...
 
by the way, i did check the voltages, all are good. just no neck glow as stated above...
 
by the way, i did check the voltages, all are good. just no neck glow as stated above...
Have you tried your Capcom bowling PCB in the lethal enforcers cab? Have you checked to see if the fuse on the chassis is still good or if it's blown? You might want to pull that and check to see if it's open.
 
yeah, tried capcom pcb in there. same results. i have never pulled the chasis and havent checked the fuse. from what i understand, you need to short the discharge the chasis before removing it? never done that, not sure how...
 
ok, i did not remove the chasis but i did (unwisely?) stick my hand in there and pull the fuse. tested it, it was not blown. this is, just from what it looks like inside the cab, a k7000 chasis. so, what would my next steps be?
 
Can you list what you have done so far to troubleshoot the lethal enforcers cab? Have you also made sure that the video wires are properly connected to the monitor chassis?

If you haven't done these steps yet you might want to.

Test all voltages at switcher.
Test all voltages at jamma harness coming from switcher.
Trace video signal from Jamma harness to video connector going to chassis for continuity.
Test voltage coming from iso.
 
Can you list what you have done so far to troubleshoot the lethal enforcers cab? Have you also made sure that the video wires are properly connected to the monitor chassis?

If you haven't done these steps yet you might want to.

Test all voltages at switcher.
Test all voltages at jamma harness coming from switcher.
Trace video signal from Jamma harness to video connector going to chassis for continuity.
Test voltage coming from iso.


I have done the first 2 steps listed here. I have not checked for continuity from harness to video connector. i will do that next. Where is the iso so I can test that voltage? Again, this is a first for me...
 
I have done the first 2 steps listed here. I have not checked for continuity from harness to video connector. i will do that next. Where is the iso so I can test that voltage? Again, this is a first for me...
To test the voltage coming from the iso you would just check what the voltage going to your monitor is. The monitor gets its power from the iso.
 
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