(Topic ID: 227195)

WPC Schematic Experts - help please on a T2 issue

By brainmegaphone

5 years ago

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42 posts
15 Pinsiders participating
Latest reply 5 years ago by tktlwyr
Topic is favorited by 4 Pinsiders

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Terminator 2: Judgment Day Williams, 1991

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Quoted from Schwaggs:
J121 connector in your picture needs to be replaced. It looks like someone hacked the IDC connector with crimp-on pins. Both the leads for the insert in question are the ones that have been hacked.

Definitely not a hack. Much more reliable to do that way than the original IDC pins.

As noted previously the light board under the playfields doesn't have its connector attached.

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

J120 isn't pinned correctly. Use zaza's diagram to get the wires to the correct pins.

J120 may have been pinned wrong to bypass burned header pins. Remove J120 and inspect the pins, or post a good photo of the pins.

With J120 removed, see if your "CPU" lamps work.

J120 and J121 are exactly the same on the board, so it doesn't matter which the manual says the connector should go to, they're the same. The wires do need to go to the correct pins though.

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

Quoted from Schwaggs:
So using crimp pins in an idc housing is not a hack to you?

The far superior Molex Trifurcon pin fits perfectly in the housing with the IDC pin removed.

If you think installing anyPin NVRAM in a game, or changing rusted and pitted balls with new, is a hack, then yeah, maybe you'd consider better pins attached to the wire more reliably a hack. Otherwise no, Trifurcon pins in the IDC housing is definitely not a hack.

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

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