(Topic ID: 215514)

Big Buck Hunter Optos Stuck Closed

By zucot

6 years ago

Topic Stats

6 posts
2 Pinsiders participating
Latest reply 5 years ago by Cycloneman
No one calls this topic a favorite

You

You are not signed in!

Find in topic

Linked Games

Big Buck Hunter Pro Stern, 2010

I'm troubleshooting a big buck hunter where the Bird and Ram opto switches are stuck closed in test.

I have replaced the optos.
I have replaced the opto amplifier board.
All of the other switches in that row work fine.
I have not tested the other switches in the Ram or Bird opto column.
As soon as I plug in the 5 pin connector on the opto amplifier board, the switches are stuck closed in test.
As soon as I plug in the switch drive connector at J1 in the backbox, the switches are stuck closed in test.
The opto switches are not glowing red at any point.

Is it likely a transistor for those switches? Anyone know which transistor it is? The BBH manual is not the best.

Any help would be appreciated!

OP
Quoted from zucot:
I'm troubleshooting a big buck hunter where the Bird and Ram opto switches are stuck closed in test.
I have replaced the optos.
I have replaced the opto amplifier board.
All of the other switches in that row work fine.
I have not tested the other switches in the Ram or Bird opto column.
As soon as I plug in the 5 pin connector on the opto amplifier board, the switches are stuck closed in test.
As soon as I plug in the switch drive connector at J1 in the backbox, the switches are stuck closed in test.
The opto switches are not glowing red at any point.
Is it likely a transistor for those switches? Anyone know which transistor it is? The BBH manual is not the best.
Any help would be appreciated!

no it would not be a transisitor.a transisitor is for the coils and flashlamps not optos it sounds like a problem on the opto board.i would also say its not the connectors because you said the optos close when you plug in both connectors on cpu and opto board.the optos not glowing clearly indicates a problem on opto board or the wiring go to and from the opto board.there should be a small red led light on the opto board.is it blinking or staying lit?

Thanks for the reply. The lights on the opto amplifier board flash and go dead as soon as I plug the 5 pin wiring harness in. This happens with and without the optos plugged into the board.

I reseated all of the wires in that 5 pin connector.

This opto amplifier board came from a known working game.

are all those optos in the same row in the switch matrix chart?

Quoted from Cycloneman:
are all those optos in the same row in the switch matrix chart?

Yes.

OP
Quoted from zucot:
Yes.

check and see if theres continuty with a meter from the connector to the board.there might be a break in the wiring

Promoted items from Pinside Marketplace and Pinside Shops!

Reply

Wanna join the discussion? Please sign in to reply to this topic.

Hey there! Welcome to Pinside!

Donate to Pinside

Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!

Help – Contact – About Pinside – Support Pinside – Top