Star Trek next generation

[wastestudio]

Hi all

Got a query I’m sure you lovely lot will be able to help with. I’ve got hold of a STNG machine and all is working lovely expect there were no batteries in the memory and therefore the machine has no way of keep system settings. I’ve checked out the board and battery holder and all looks clean so installed 3 new batteries but still no saving…does anyone know how I can test/trouble shoot this? Any advice/pics/videos would be massively appreciated

Best

Norm

 

[Asiapinball]

Looks like the bottom right battery pad is missing and also there has been some battery leakage on the pads as evidenced by green corrosion. I would start by replacing the battery holder with a remote one with long wires so that the battery holder can be placed well away from the boards.

If you had batteries installed correct way with machine turned off there should be 4.5v+ across bottom left to top right terminals so you can check this with your dmm to confirm battery holder is the problem.

The board looks clean otherwise so 90% sure it will just be battery holder issue.

 

[Asiapinball]

Example of remote battery installation in my cftbl. Usually I would do this with longer leads and have the battery holder in bottom of cabinet. OK like this if you check and change batteries regularly. Note the sticker on top is date batteries were last changed. And use quality batteries duracells not the cheap rubbish.

 

[Ragnar1057]

There is some useful information that may help here - https://www.pinwiki.com/wiki/index....Settings_Not_Held_or_Battery_Depletes_Rapidly
A faulty diode can sometimes cause problems and is easy to test with a DVM

 

[wastestudio]

Looks like the bottom right battery pad is missing and also there has been some battery leakage on the pads as evidenced by green corrosion. I would start by replacing the battery holder with a remote one with long wires so that the battery holder can be placed well away from the boards.

If you had batteries installed correct way with machine turned off there should be 4.5v+ across bottom left to top right terminals so you can check this with your dmm to confirm battery holder is the problem.

The board looks clean otherwise so 90% sure it will just be battery holder issue.

My thoughts exactly just checked the voltage and showing not a lot - never put a battery holder on before as my other machines had all been done before I bought them - will give it a YouTube search but thinking it should be easy enough?

 

[Asiapinball]

It's an easy soldering job. Just cut the 6 legs on the old battery holder first and then you can take out the old legs one by one. It's hard to mess up the soldering as the traces and through holes are quite chunky. All the usual pinball suppliers have the 3x AA remote holders as do electronic suppliers.

 

[Asiapinball]

Longest part of the job is taking the board out of the machine and reinstalling it.

 

[wastestudio]

Longest part of the job is taking the board out of the machine and reinstalling it.

Super star thanks for your advice will get a replace battery holder and get cracking

 

[wastestudio]

There is some useful information that may help here - https://www.pinwiki.com/wiki/index....Settings_Not_Held_or_Battery_Depletes_Rapidly
A faulty diode can sometimes cause problems and is easy to test with a DVM

This is Great!! Very useful indeed