Spy Hunter Trouble Shooting Help

squall280

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Ok so i have a dead Spy Hunter. He is what's going on.
Marquee Light works as does the coin insert lights.
We have a loud hum/boat horn noise comign out of the speakers.
No Picture on tube and no glowing neck.
so now i checked the fuses and all have no power going to them(talking about the five fuses on the bottom).
i checked to see the power going to the monitor chassis and i am getting normal readings.

anyone?
 
Ok so i have a dead Spy Hunter. He is what's going on.
Marquee Light works as does the coin insert lights.
We have a loud hum/boat horn noise comign out of the speakers.
No Picture on tube and no glowing neck.
so now i checked the fuses and all have no power going to them(talking about the five fuses on the bottom).
i checked to see the power going to the monitor chassis and i am getting normal readings.

anyone?

It sounds like you may have a few things wrong. If you have power at the monitor chassis (i.e. 120 VAC on the connector leading to it from the isolation transformer) and you have no neck glow/picture, there could be numerous things wrong with the monitor. It could need a new fuse, flyback, HOT, etc. If you need help, I recommend posting the issue (and brand) in the monitor subforum.

Regarding the rest of your issues--it sounds like you have good unregulated 12 volts, as you are hearing sound (audio amp is receiving power) and your coin door lights are lit.

I would pull the main power connector going to your 3 board stack and see what voltages are present with a multimeter. You should have +12V and +5V going to the stack from you linear power supply. If your +5V is too low, this could easily make your board glitch.

Here is something you should also do--power down the machine, and check for continuity (with a multimeter) across the fuses on the suitcase power supply (the big one in the bottom of the cab).
 
ok here is what i have done.
i pulled the chassis and put in a semi working one.....(its works just distorts a wavey image). anyways no image....
checked power and it all seems on the up and up. my multimeter reads 1 when you set it to continuity so when i checked fuses it would spike and go back to 1.

any further advice?
 
It sounds like it could be a board issue.

When I got my Non-working Spy Hunter, it was multiple problems (power and board). I by-passed the power board using a new replacement and replaced the interconnect cables and now it runs great (minimal hum with the power board). Plus I had to repair the cheap squeak.

I think I was pretty lucky. No major board issues.

The power on Spy Hunters is not simple and a missing or low voltage is always a possibility though.
 
ok here is what i have done.
i pulled the chassis and put in a semi working one.....(its works just distorts a wavey image). anyways no image....
checked power and it all seems on the up and up. my multimeter reads 1 when you set it to continuity so when i checked fuses it would spike and go back to 1.

any further advice?

If you have a set of grabbers to connect to your multimeter, I recommend putting the two leads on the +5V and the ground connections of any logic chip on your SSIO board. (It is the board that a bunch of the external connections attach to in the stack.) I would like to know if you are actually getting +5V to your logic chips. This would also tell us if your voltages are getting dragged low. Often on these systems, you can pull the power connector coming from the linear power supply and read good voltages, but the power is not able to maintain these voltages under the load of the boardset.
 
Hope you don't mind if I piggyback on your thread Squall.

I'm having the near exact symptoms as you are with my SH (no screen -- even with 125.5v going to it -- and an audio hum). I have a new power supply adapter in there that is giving 4.7v to pins 2-5 on the J1 connector of the CPU and 11.9v on the 18 pin (which should be within range). The Cheap Squeak is blinking constantly and I'm getting now light at all from LED 3 on the Super Sound board.

What should I look at next?
 
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