Hi All.

Recently I repaired two Sega G-Loc motor power supply boards. The DC voltages on both boards were all tested and found to be working correctly as per the instructions here:
https://www.gamoover.net/Forums/index.php?topic=28660.0

After completing the repair, I plugged these boards back in to the machine, noting the Digital Motor Control Board was untested. The two motor power supplies were plugged into the digital motor control board BUT the digital motor control board was not plugged into the PCB.

Even though the digital motor control board, was not plugged into the PCB both of the motors moved on two separate occasions, causing the AC safety switch in the G-Loc machine to turn off.

After removing one of the power supply boards, I have found that the AC input into the L2 transformer drops from 340V AC down to about 260V AC when switched on. I suspect that one of the K1250's has blown, but I am seeking advice on trouble shooting before proceeding any further.

Here is a video of the issue.

Does anyone on the forum own a Taito WGP DX / Deluxe Cabinet like the one pictured below?



I need to know if this version of the game uses the Taito Motor Control PCB which is the PCB on the right of the image below.



I've tried to find a digital copy of the manual to confirm but haven't had any luck.

Thanks in advance! 

Hi All,

Apologies for not being able to write messages in French. I was attracted to the forum because of the wealth of technical expertise here. I am an Australian collector of mainly 90s dedicated arcade machines. I enjoy fixing and restoring machines. My current project is a G-Loc Deluxe with significant corrosion issues.

I've started working on the 839-0213 PCB. I need to replace all of these components which are labelled as "Z##" but I cannot figure out what they are.





I think they are either a Zener or TVS diode, but I am not sure. The end with the orange bands is connected to +5VDC and the end with the black band is connected to ground.



Can anyone help me identify what these are so I can replace the corroded ones on my board?

Cheers