Just Dirt?? Lethal enforcers screen goes blank

gjinc

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Ok I have not played this game in a few months. The last time I did it worked. So I fire it up and play for about 5 minutes then the screen goes blank. I slap the side and it comes back on. I check for loose connections and did not find any. Turn the game back on and it works for about 5 minutes and the screen goes blank. I hear the voices and music so I assume it is playing blind.
It has a Mitsubishi A63LAV61X tube and I saw a sticker that has WG 1597373 on the chassis
I tap the HV cage and the screen comes back on. So I move the focus pot and the screen pot back and forth a few times and played the game for about 30 minutes.
Looking for opinions, could it have been dirt on one of the pots or do I need to look for something else ??:confused:

THANKS
 
cracked solder joints likely on the header pins or around the flyback, pull the chassis and touch up all the pins and anything else that looks suspect
 
Almost certainly sounds like a bad solder joint. Check your video pins as well as the flyback.
 
Victory was short lived..
Ok, I redid the solder on the flyback and video inputs and still have the same problem. I don't know how to describe what I am seeing and I'm having trouble catching it on camera, but the there seems to be some distortion in the back ground just before it blanks out??
Also I don't know what you mean by "header pins", can you explain?
Thanks
 
your gopnna have tolookover the whole thing... especially the header pins where the video inout wires hook up, all larger resistors, yoke area, any heatsink mounted ics, etc betc

if this is a k7000 desolder check and resolder r101...

can you post a pic of the chassis so we know wher we are dealing with?
 
I found
NANAO 05A0046001 and 05T00905

DSC03384.jpg


DSC03385.jpg
 
Is that the chassis that was in your machine ?

You started off with a Wells Gardner serial number and now you're showing pics of a Nanao chassis.
 
somewhere on that chassis is some resistors that run real hot.. almost guarantee that you will find burnt/crackes solder connections somewhere around there...


that looks like a nanao dual res, mostly used on sega games of the early 90s...


yes that scares me too... like.. seriously.. how long did this run before it krapped out???
 
On the side of the HV cage is the sticker with WG1597373
It is also on the chassis, where the card mounts

that white sticker has the wg number, the one to the left of the yellow High Voltage sticker
DSC03378.jpg
 
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somewhere on that chassis is some resistors that run real hot.. almost guarantee that you will find burnt/crackes solder connections somewhere around there...


that looks like a nanao dual res, mostly used on sega games of the early 90s...

check the solder of those resistors to the right of that large filter cap first...


hopefully this was just a frame swap as in somebody took the nanao chassis yoke and tupe and dropped it into this wg frame...


pretty weired that the wg serial number is on the chassis though.. odd indeed.....
 
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