(Topic ID: 229142)

Cue ball wizard not completing startup


By JCNP

1 year ago



Topic Stats

  • 7 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by wayout440
  • Topic is favorited by 1 Pinsider

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#1 1 year ago

Bought the machine new in 1992. Used it for about 4 to 5 years in the house. Working perfectly. Brought it downstairs to use in the garage for a party. Plugged it in and had this problem. Been sitting in the basement of my new house for 20 years and finally decided to do something about it. Check connections, fuses and removed button battery. Soldered new pigtail for double A battery holder. No sounds are playing. Playfield is lit. This is the different images I get on the display when I power on. The images don't change only when powering on and off . The three boards on the back panel have blinking red lights. I thought maybe seeing these images somebody might have had the problem and would lead me in the proper direction. Thanks in advance.

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#2 1 year ago

Measure the power voltages with a DMM/Voltmeter to see if all are in spec, especially +5VDC logic, +/- 12VDC logic. Blinking LEDs on the circuit boards are generally a good sign there there is some CPU activity. Is there a beep at startup when you turn it on - I assume there probably is not. Are the playfield lights blinking (attract mode running?)

#3 1 year ago

Yes there are the two tones at the startup. Sounds like I remember
when it was working properly. The board is not in attract mode but the lights are on steady.

#4 1 year ago
Quoted from JCNP:

Yes there are the two tones at the startup. Sounds like I remember
when it was working properly. The board is not in attract mode but the lights are on steady.

It sounds like the sound board might be running, but the CPU might not be. Reseating all the ribbon cables might help, but +5 logic supply can also be suspect. You really should check it with a volt meter. Do not disconnect the DMD cables with the power on!

#5 1 year ago
Quoted from wayout440:

It sounds like the sound board might be running, but the CPU might not be. Reseating all the ribbon cables might help, but +5 logic supply can also be suspect. You really should check it with a volt meter. Do not disconnect the DMD cables with the power on!

Yes I will follow through on that and we will go from there, thanks.

2 weeks later
#6 1 year ago
Quoted from wayout440:

It sounds like the sound board might be running, but the CPU might not be. Reseating all the ribbon cables might help, but +5 logic supply can also be suspect. You really should check it with a volt meter. Do not disconnect the DMD cables with the power on!

Did check the cables. The voltage was 4.4 and adjusted the pot to 5.1. The DMD controller board has a solid light on. The CPU board has a series of fast flashes and then a slight pause could be as many as 10 12 flashes. Before we started working on it it was a slow steady Flash. The axillary soundboard has a slow steady Flash. When we were playing around with the power supply with the pot in it the Matrix got disconnected with the power on. When we plugged it back in we had no Matrix. Check the main fuses and the one that was 2.5 was blown. Put the fuse back in and did have the Matrix back but not the same display as I was showing in the pictures. I did read about not unplugging and plugging with the voltage on unfortunately when that occurred the other gentleman was pulling it and he didn't read about that . If you could when you have a chance could you check and see if the flashing lights on yours is what I'm describing. The machine is basically at the same state as it was except for the information on the screen is different. Of course open to any ideas . Thanks.

#7 1 year ago

All boards start up basically almost simultaneously with slow LED blinking, although the sound and CPU are slightly ahead when the switch is turned on. The DMD solid lit LED is because the U8 GAL chip fried. The CPU LED sequence you are seeing indicates a low CPU board battery or a bad U11 chip.

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