Spy Hunter driving me nuts already....

TheDrewster

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So I bought a new Absolute Position PCB and I got virtually no change. I still cant coin up the machine and the steering wheel and pedal do not work. The game senses the coin chutes and credit button in test mode, but will not coin up in game mode. Test mode does not sense steering or pedals at all.

UGH!!!!! HELP!!!
 
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Ok so I did a little more poking and prodding and got the SSIO into diagnostic mode where it says "SOUND BOARD INTERFACE ERROR" so I think its safe to assume that the problem lies within my SSIO, correct? So now what?
 
spy

this is why you only should pay 20 buks for such a beast lol
 
turn dip switch 1 and 3 on on the ssio (the DS at the edge of the board). that should tell you whether you've got a bad ram or rom. If it doesn't do anything at all, then look at the z80.
You have replaced the ribbon cables already i assume? they're notorious for causing problems. Also clean and reseat all the socketed chips on the ssio - and check the sockets with a magnifying glass or jeweler's loupe for corrosion while you've got them out.
As far as the absolute position sensor goes - have you checked for +5 and gnd to it, and continuity of the harness between it and the ssio? Those connectors are known trouble spots.
 
turn dip switch 1 and 3 on on the ssio (the DS at the edge of the board). that should tell you whether you've got a bad ram or rom. If it doesn't do anything at all, then look at the z80.
You have replaced the ribbon cables already i assume? they're notorious for causing problems. Also clean and reseat all the socketed chips on the ssio - and check the sockets with a magnifying glass or jeweler's loupe for corrosion while you've got them out.
As far as the absolute position sensor goes - have you checked for +5 and gnd to it, and continuity of the harness between it and the ssio? Those connectors are known trouble spots.

I have not replaced the ribbons yet, but I have reseated them. I will run the test and report back. I havent taken a close look at the ribbons, but can I use standard IDE cables? Just curious.
 
sorry. i meant turn dip switch 1 and 2 on. 1 and 3 is the oscillator test.
Solid light and sound is a good sign - at least its running code, i think....

So try that - turn 1 and 2 on and see what the led does.

you can use ide cables if you can find the right ones. The connectors need to be no more than 4" long, and 2 rows of 25 pins. Most ide connectors from computers are 20 pins -you'd need to get scsi cables.

Bob Roberts sells new cables, fwiw. Since your getting an SI error, chances are, there's a bad cable since the oscillator test is running.
The harness connectors are notorious for going bad as well. The wires tend to pop out of the crimps. Once you get the cables straightened out, most likely the ssio error will go away. Once that happens, you can figure out if thats your problem or if its in the harness.
 
1 and 2 shows no errors. Solid LED. I also replaced the Z80 just for the hell of it. No change.

Now, I swapped some ribbon cables from the other side of the boardset since I figured they would be working, and still nothing changed. Should I go ahead and replace the cables anyway?
 
Ok, one more thing, it doesn't happen often, but it does happen. Check the voltage at one of the eproms on the ssio- bottom left and top right corner of the eprom. If its less than 5.0v adjust the power supply until you get 5.0v. Sometimes you can be getting enough power to the cpu, but not the ssio.
Also, press the red reset button on the ssio, and see if you still get the error.



if your still getting the sound board interface error, i'd start pulling socketed chips and cleaning them, and checking sockets.

As far as replacing cables, its never a bad idea to replace them. I do on every pcb i repair. There just too old and tend to crack and break - especially if they're the single row flat copper trace kind.
 
Ok, I checked the voltages and I am getting 5.05 on the SSIO via the ROM legs. Everything has been reseated. I also disassembled the entire cabinet and put it back together and still no change. I made a video showing exactly what I am experiencing:

 
a few things to try-
1. unplug the 3 connectors on the ssio, and see if you still get the SBIE.

2. can you read the markings on the roms on the ssio? Are they in the correct position?

3. Test the eproms and ram and cables.

4 i think you said you replaced the z80 already.

5. visually inspect the sockets for corrosion and missing pins.

6. Download the schematics from www.klov.com and trace continuity of every wire coming off the 19 and 23 pin connectors on the ssio.

You've got more than one problem that i can see. Your weapons van lights shouldn't come on unless you've credited the game up. Its on the same connectors as the ab. pos. board, as is the Cheap squeak deluxe - it shouldn't play peter gunn unless you have started a game. It playing when the machine's powered on indicates its not recieving a signal from the ssio.
Why that is? Could be a bad connection, or something bad on the ssio. Being that it keeps giving SBIE's, there's most likely something going on with it. they're pretty much interchangable with other mcr ssio boards. That looks like the next step to me, getting rid of the sbie.

Oh, and the dac on the Cheap squeak deluxe sounds like its going out. I forget the part number, but its socketed on the CSD - i think electronic goldmine has them.
 
I have an untested Satans Hollow boardset on the way. I am praying that it has a good SSIO board. I will also be getting some SCSI cables from a friend tomorrow. I will report back.
 
Replaced the SSIO and no change. I still get a SBIE and I even plugged in the Satans Hollow boards I got and it also boots up to a SBIE.
 
wondering if your roms are either in the wrong position, or the ssio is strapped for 2532's and you've got 2732's. They came both ways.
Also, are you using the new ribbon cables? Have you tried cleaning the headers on both the cpu and the ssio? And, check continuity between each end of the ribbon cables, and make sure you've got them hooked up properly.
 
Yes, I am using new SCSI cables and I have cleaned the headers. ROMs are in the right position, I checked and double-checked.
 
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