Sea Wolf will not coin up...

learpilot2

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I just bought a great looking Sea Wolf, but it will not coin up and start play. All the coin drop switches and start switch check ok. Is there any pcb dip switch to set free play to bypass the coin door. I can't post credits to start a game. Any ideas????
 
There's no free play option on the dipswitches. Mine is set to factory settings, but the coin door has been rewired to coin up using only the start button. The coin drops have been bypassed, so there is a way. Not really sure I can explain it more than that because I am anything but a game tech.

If your coin drops and start button are getting power though, there is definitely something more wrong, but I guess I can't be the one to tell you exactly what that would be.

You might want to email Alex(Elektron Forge) with your question or check out Andre's website: www.arcadesolution.com and email him.
 
checked all the coin door wiring...

I checked all the coin door wiring. voltage is good on the power supply, all the switches work, and i tested all the coin door wiring all the way back to the pcb board edge connector. The pcb must not be registering the grounded signal. I heard of people soldering a bypass somewhere A1 on the pcb. I am not sure that would work for me since everything after the pcb checks good.
 
no voltage on leads at coin door...

It looks like coin up and start buttons complete a circuit to ground when pushed. I checked the continuity of the wires back to the daughter board edge connector. Checked good. I did not check for voltage upon power up.

I powered up the Sea Wolf, and checked for voltage on both the coin drop switch and start switch on the coin door. No voltage on the input lines to these switches. Only .2vdc on the coin drop switch.

I am no expert, however, should'nt there be a voltage coming from the pcb to the coin and start switches that is looking to be grounded to start the game? I measured the voltage off the daughter board pcb edge connector with no reading on start lead, and .2 vdc on the coin up lead.

I heard of people shorting pins 3 & 6 and 2 & 7 on the small chip at A1 on the daughter board. Any one heard of this? Would this work when I have no voltage going to the coin door? Is it a bypass for faulty coin door wiring which I do not have? How would I know which pins on the chip are 3,6,2, and 7. I do not have a wire diagram.

I hate hacking a board if not needed.

Thanks,

Rick
 
That could most likely be the fix - its an optocoupler that protects the inputs and apparently prone to going bad. Phet just fixed a bad fire button on his doing the same repair.
 
I have four L7617 chip in the way of the pins to be jumped

I went to jump the pins 3 & 6 and 2 & 7, and there are four L7617 chips in the way. Do I jump the solder side with the chip intact, or remove these chips. The last guy that did this sent me a photo of his pcb, and those jumped pcb holes had no chips installed.

How do you read pin numbers on a chip socket? Left right then line by line top down?

1 2
3 4
5 6
7 8

?????
 
Yep just like you labeled it...this should help...


From this page: http://www.marvin3m.com/video/seawolf.htm

seawol6s.jpg
 
Jumper install question

Ok. I think I will try it.

Do the optos look like little IC chips? I have 4 of them on the board near A1.

Do I remove all four of them, and put in jumpers as shown.

I heard to jump pins 3&6 and 2&7. Those pins do not seem to match up with the picture shown. It looks like in the picture that pins 3&4 and 5&6 are jumpered on each of the four empty chip slots. A total of 16 jumpers total.

Do I just use 22 gauge solid copper wire to jump, and solder on the solder side?

Thanks for the help
 
Just jump the pads that the picture shows. You can see the solder pads/holes where the chip legs are supposed to be, you can see which pads the jumpers span to. Looks to me that there are 2 chips for a total of 16 solder pads at A1. Looks like they jumped the center 4 pads at each chip location.
 
It works...

Thanks for all the help! I pulled out 4 optcouplers and jumped them like your diagram. The coin switch started the game! That was it. Thanks!

Once I hit the coin switch, the game starts without pushing the start button built into the center of the coin door. Not sure why it does that. I checked the start button wiring, and it was not shorted to ground. Not sure why the game starts immediately after the coin drop switch is activated. I may just take the wire from the coin switch and move it to the start switch. I assume then, hitting the start switch will immediately start a new game. That would work better since the game has no free play mode.

The only problem left is the monitor blooming, no explosion image, and the periscope image crosshairs don't align with the fired shot sometimes, and the periscope sounds like a rock tumbler when turned. I think it need to grease the bearings and clean the periscope pcb contacts.

I will keep you posted of my repair progress.

It sure was fun to hear the sonar ping and uboat noise again. The last time I heard that noise was when I was 10 years old.

Thanks for the good help.

Rick
 
Once I hit the coin switch, the game starts without pushing the start button built into the center of the coin door. Not sure why it does that. I checked the start button wiring, and it was not shorted to ground. Not sure why the game starts immediately after the coin drop switch is activated. I may just take the wire from the coin switch and move it to the start switch. I assume then, hitting the start switch will immediately start a new game. That would work better since the game has no free play mode.

That's normal the game will start up whenever you deposit a coin. If there are extra credits on the machine then you can use the button to start the game.
 
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