Jungle Queen
Gottlieb, 1977Hey all, I have a new issue that popped up today on a Gottlieb Jungle Queen. Symptoms as follows:
1. 500 points for rollovers A, B and C not scoring, and drop targets not scoring (but they are adding bonus)
2. M relay is locked on.
Otherwise the game works great. Any ideas?
Thanks!!
Quoted from HowardR:Turn the machine off, then turn it on and start a new game. If the M relay locks on immediately, check for a playfield switch stuck closed.
Negative @HowardR, the M relay does not lock on right away, but it does lock on when you start a game and then hit a rollover switch at the top (A, B, C).
What do you think?
Quoted from RetroRyan:Negative HowardR, the M relay does not lock on right away, but it does lock on when you start a game and then hit a rollover switch at the top (A, B, C).
What do you think?
Check the normally-closed score reel end-of-stroke switches
pasted_image (resized).pngQuoted from HowardR:Check the normally-closed score reel end-of-stroke switches[quoted image]
Thank you I will check these today and report back!
Quoted from HowardR:Does the M relay lock on if you activate it manually?
Quoted from RetroRyan:Yes. HowardR
1) Does a 100 point scoring unit solenoid pull in and stay pulled in when you activate M?
2) Does M lock on if you put a piece of paper in one of the 100 point scoring unit end-of-stroke switches and activate M manually?
Quoted from HowardR:1) Does a 100 point scoring unit solenoid pull in and stay pulled in when you activate M?
2) Does M lock on if you put a piece of paper in one of the 100 point scoring unit end-of-stroke switches and activate M manually?
@HowardR, no. If I put a piece of paper at end of stroke on 100s unit at player 1 and activate rollover, M relay does not stay pulled in. This sounds like progress?....
Quoted from Dono:I think Howard nailed it... that EOS switch is not working properly... can you tell us what the contacts are doing when you manually move the counter via the plunger?
YES Dono that EOS switch 8s either the problem or the result of another problem in the circuit. The M relay does stop pulling in when I engage that score reel coil then will lock on again when any playfield score using the 100's reel 8s actuated. The wires look good to the switch and everything seems in order. Is there another place I should be checking for a short?
I had the same problem
Quoted from RetroRyan:YES Dono that EOS switch 8s either the problem or the result of another problem in the circuit. The M relay does stop pulling in when I engage that score reel coil then will lock on again when any playfield score using the 100's reel 8s actuated. The wires look good to the switch and everything seems in order. Is there another place I should be checking for a short?
So when you manually activate that plunger, can you confirm that the EOS is opening at the end of the plunger stroke, and closing at the end of the stroke?
Quoted from Dono:I had the same problem
So when you manually activate that plunger, can you confirm that the EOS is opening at the end of the plunger stroke, and closing at the end of the stroke?
I'm confused, you say in post 10 that if you place paper in that EOS switch on 100s reel player one that the M relay doesn't stay pulled in... but then you say that the EOS switch is gapped properly... not trying to be an ass here, but how can the EOS on that reel NOT be the problem? Have you actually viewed that EOS switch in action when the M relay fires? Maybe when manually testing it's opening ok, but being pulsed from the M relay, perhaps the coil plunger isn't completing its stroke quite the same way.
Quoted from Dono:I'm confused, you say in post 10 that if you place paper in that EOS switch on 100s reel player one that the M relay doesn't stay pulled in... but then you say that the EOS switch is gapped properly... not trying to be an ass here, but how can the EOS on that reel NOT be the problem? Have you actually viewed that EOS switch in action when the M relay fires? Maybe when manually testing it's opening ok, but being pulsed from the M relay, perhaps the coil plunger isn't completing its stroke quite the same way.
I will double check this weekend. I see your point. Maybe the coil isn't plunging far enough to open EOS... Tis possible. I will report back. Thanks!
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Watertown, SD