(Topic ID: 143551)

Installing Remote Battery Holder


By Blake

3 years ago



Topic Stats

  • 21 posts
  • 11 Pinsiders participating
  • Latest reply 2 years ago by Brtlkat
  • Topic is favorited by 2 Pinsiders

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#1 3 years ago

im installing a remote battery holder on my world cup and wanted to know how to identify the positive and negative with the original holder already clipped? there does not seem to be any indication on the board itself?
thanks
blake

#2 3 years ago

Williams World Cup, the System 3?
If so, here's a pic of a System 4 MPU, which is similar. The negative side goes to the connection that touches the large ground plane on the perimeter of the board.

http://www.pinwiki.com/wiki/index.php?title=File:WMS_sys4_MPU_board.JPG

--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#3 3 years ago
Quoted from ChrisHibler:

Williams World Cup, the System 3?
If so, here's a pic of a System 4 MPU, which is similar. The negative side goes to the connection that touches the large ground plane on the perimeter of the board.
http://www.pinwiki.com/wiki/index.php?title=File:WMS_sys4_MPU_board.JPG
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

thanks just what i was looking for. and we are sure positive goes to the trace connected to the diode?
blake

#4 3 years ago
Quoted from Blake:

we are sure positive goes to the trace connected to the diode

Well...I am.
And I've done hundreds of them.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#5 3 years ago
Quoted from ChrisHibler:

Well...I am.
And I've done hundreds of them.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

thx a bunch chris!

#6 3 years ago

And if in doubt, use a meter with power on before you solder on the wires.. You will see +5 (or something close) if you chose the right pins.

#7 3 years ago

image.jpg
use a 4 battery holder and solder the diode in the battery holder

#8 3 years ago
Quoted from Raff:

se a 4 battery holder and solder the diode in the battery holder

...with the banded side of the diode pointing toward the positive connection.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#9 3 years ago

i installed it exactly like the first picture in the link showed. mine is a 3 battery holder. whats the benefit of the four with diode installed?
thanks
blake

#10 3 years ago
Quoted from Blake:

whats the benefit of the four with diode installed?

No benefit other than you can see that there is a blocking diode installed. The diode stops the batteries from being charged when the machine is ON. So on a three battery pack you will just have a diode in line with the positive wire. The banded side nearest the board the unbanded side nearest to the pack.

#11 3 years ago
Quoted from Blake:

i installed it exactly like the first picture in the link showed. mine is a 3 battery holder. whats the benefit of the four with diode installed?
thanks
blake

Your board is trying to charge whatever batteries it finds but typically you will not be using rechargeable batteries and you can damage regular batteries if you let it try to charge so the solution is to add that diode, it stops the charge.

#12 3 years ago
Quoted from Raff:

use a 4 battery holder and solder the diode in the battery holder

Why are there 3 wires soldered to the board in this picture?

#13 3 years ago

My guess, the 3rd is a ground wire to bulletproof old Gottliebs. It goes back to the frame of the power supply.

#14 3 years ago

Has anyone replaced the three batteries in an Addams Family. If so can you post a picture so I can see how to do this. Thanks.

#15 3 years ago
Quoted from DiggerPSU:

Has anyone replaced the three batteries in an Addams Family. If so can you post a picture so I can see how to do this. Thanks.

Your TAF is a WPC-089...
See this... http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Relocating_the_battery_from_the_MPU_board
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#16 3 years ago
Quoted from RoyF:

Why are there 3 wires soldered to the board in this picture?

As noted, that's a ground mod wire.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#17 3 years ago

yep that is a ground wire i added

6 months later
#18 2 years ago

I'm looking to add a remote battery holder to my Whirlwind. Can anyone provide some tips and pictures to help? This is my first time doing this.

Thanks

#19 2 years ago

My two cents, if you intend to install a battery remote instead of an NVRAM:

1. Run the wiring for the remote all the way from the MPU to the coinbox, and leave the remote in or on your coinbox. That way, when you need to check or change your batteries, you'll only need to open the coindoor instead of moving the machine, removing backglass, possibly damaging backglass, etc.

2. Install molex connectors on the remote wiring 6-8" off the MPU. That way, if you ever need to remove the MPU or send it out for servicing, the remote is easily disconnected.

#20 2 years ago

How much harder is it to install NVRAM?

#21 2 years ago
Quoted from Pmaino:

How much harder is it to install NVRAM?

Not to bad if you can solder . FWIW nvram will not hold your time and date.

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