JPAC fault

[JonnyG]

Just stumbled across a fault with my JPAC, it seems to be functioning OK, with all the inputs working fine and the correct LEDs lit. Recently however, I had need to solder the sync pins together on the VGA connector as it would lose sync occasionally, this has required me to remove all the jumpers from the JPAC's sync pins to get a proper picture.

Tried to map a new switched key in Win IPAC but i get a driver failed to install message. Checking out its entry in device manager I see...

This device cannot start. (Code 10)

An unknown item was found in the report descriptor.

Device USBVID_D208&PID_0310&MI_027&173e23af&1&0002 was configured.

Driver Name: input.inf

Class Guid: {745a17a0-74d3-11d0-b6fe-00a0c90f57da}

Driver Date: 06/21/2006

Driver Version: 10.0.19041.868

Driver Provider: Microsoft

Driver Section: HID_Inst.NT

Driver Rank: 0xFF3202

Matching Device Id: USBClass_03

Outranked Drivers:

Device Updated: false

Parent Device: USBVID_D208&PID_03106&2af6c4ed&0&4

Anyone else run into this issue? As I say it functions fine but if I ever wanted to map buttons to something different it is effectively locked in its current config.

It was bought in 2014 so it's the version with the 2x PS2 connectors for power and keyboard passthru, rather than the newer micro USB version. Currently connected to my Lordsvale cab's harness via a MVS adapter which has been in place since purchase. Tested on the cab's Win 10 PC and my main desktop, same fault.

JonnyG2022-08-19 10:39:19

 

[tronads]

I had this recently....when you read the help pages, it suggests when you get this fault to make sure that non of the buttons are held down on power up. For me though it was doing it on the groovymame pc, but when I removed the jpac completely from the machine, it was working when hooked up to the laptop.

 

[JonnyG]

I've got a few extra buttons wired in to the jpac so I guess I could try disconnecting them, but not getting any random button pressed I can see.

Cheers for the idea.