venom
New member
Jamma harness wont fit to original micro switches ?
Hi I have an old arcade cabinet which I am converting to a jamma machine. It had a 22 pin connector so as advised stripped that out and replaced with a new Jamma harness, I have mended the power supply to get +/- 12 and 5 volts. Restored the locks and coin mechanisms. However the new new jamma harness does not fit it and the old connections of the joystick and button micro switches. The jamma ends are smaller than the micro switches ? The microswitch metal lug is about 6mm and the old connector from 22 pin edge is about 7 mm. On the jamma harness the ends are about 4.5mm, so are too small to attach to the 6 mm micro switch. I was wondering have I got old joysticks and buttons? Are new joysticks and buttons set to a standard size which the jamma harness end should easily fit on to ? I.e are the switches bigger than normal. As in if I order new joystick and buttons of ebay which come with new microswitches will the jamma 4.5 mm connector fit on them ok. Alternatively I will have to re-crimp about 20 connections with larger 7mm ends. Help ! Pictures of my whole cab are in a previous post. The picture attached is better than a thousand words !
Thanks in advance
Hi I have an old arcade cabinet which I am converting to a jamma machine. It had a 22 pin connector so as advised stripped that out and replaced with a new Jamma harness, I have mended the power supply to get +/- 12 and 5 volts. Restored the locks and coin mechanisms. However the new new jamma harness does not fit it and the old connections of the joystick and button micro switches. The jamma ends are smaller than the micro switches ? The microswitch metal lug is about 6mm and the old connector from 22 pin edge is about 7 mm. On the jamma harness the ends are about 4.5mm, so are too small to attach to the 6 mm micro switch. I was wondering have I got old joysticks and buttons? Are new joysticks and buttons set to a standard size which the jamma harness end should easily fit on to ? I.e are the switches bigger than normal. As in if I order new joystick and buttons of ebay which come with new microswitches will the jamma 4.5 mm connector fit on them ok. Alternatively I will have to re-crimp about 20 connections with larger 7mm ends. Help ! Pictures of my whole cab are in a previous post. The picture attached is better than a thousand words !
Thanks in advance

