(Topic ID: 85150)

Future Spa Club - Come on in the water is warm!

By Xenon75

7 years ago


Topic Heartbeat

Topic Stats

  • 336 posts
  • 90 Pinsiders participating
  • Latest reply 9 days ago by steve-o
  • Topic is favorited by 35 Pinsiders

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#123 3 years ago
Quoted from LongJohns:

Hi gents,

I am working on a project Future Spa and have a question with regards to the driver board J3 connector (right most one on the top).

According to the wiring diagram there should be a white-brown wire at pin 10 of J3. On the solenoid driver board J3 pin 10 goes to the "-" (negative) lead of capacitor C23. Is there any wire sitting in location pin 10 of the J3 connector housing?

Sounds like someone's bodged the connection up onto pin 1 instead of pin 10 for whatever reason. If the negative lead of C23 is floating, the 5 volt regulator will not be able to provide a stable +5V supply.

You should do the ground mods on the solenoid driver board - one of them is to connect the "-" (negative) lead of capacitor C23 to the main ground trace on the SDB for better redundancy.

http://www.pinwiki.com/wiki/index.php?title=Bally/Stern#Solenoid_Driver_Upgrades

2 months later
#156 3 years ago
Quoted from Thorzhammer88:

- The first is the J3 connector, pin 13 on the rectifier. It’s supposed to be a WHT/YL wire that goes to the solenoid bus, but it’s missing.

Ignore it. It's a left over on the schematics from the days when the knocker was in the head.

Quoted from Thorzhammer88:

- The second is the J1 connector on the MPU, pin 8. Notes say it’s reseeved for future use. The wire I have connected is GRY, and I’m unsure where it leads.

It's the Lamp Strobe #2 signal for the 2nd lamp board - i.e. it goes to J1 pin 3 on the Auxiliary Lamp driver board.

Quoted from Thorzhammer88:

- The last is J2 connector on the MPU, pin 2. No notes or info (other than the general info of it being connected to play field strobe) about this being a pin. Right now I have a GRY/YL wire at that location and could use some more info.

See the playfield switch schematic below:
.
FutureSpa_SwitchMatrix_PF.jpg

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