By Sense-A
Mon Sep 17, 2018 2:40 pm
I have a fairly new MPC Stuff MPC 1000 pad upgrade. It included the pad sheet sensors and the PCB board. Unfortunately, it is outside their 90 day warranty.
It has rarely been used and shows no signs of any wear or tear. It's been safely in storage most of its life.
My problems are isolated to pads 1 and 2.
Unfortunately, I am rarely getting any velocity on pads 1 or 2. However, the pads receive pressure correctly. Also, sometimes pad 1 triggers pad 2 and pad 2 triggers pad 1. This is erratic. What sort of scenario would allow correct pressure readings but not velocity?
My suspicion is that there may be some kind of grounding issue. I wonder if the PCB board that gets tucked beneath the pad sensor tray is shorting to the chassis. However, if that were the case then all the pads should stop working. It could one or two bad solder joints on the PCB board, but they all appear okay to the naked eye. The ribbon cable also appears to be correctly seated. I tried reseating it and no change. There are no apparent cracks or scratches in the conductive leads that go from each pad to the end of the ribbon cable...
I wonder if the conductive leads from pad 1 and 2 are shorting to each other somehow....
I've tried both JJOS2 and free Akai OS. The problem is same regardless of which OS.
I am trying to isolate the problem to either the sensor sheet or PCB board.
It has rarely been used and shows no signs of any wear or tear. It's been safely in storage most of its life.
My problems are isolated to pads 1 and 2.
Unfortunately, I am rarely getting any velocity on pads 1 or 2. However, the pads receive pressure correctly. Also, sometimes pad 1 triggers pad 2 and pad 2 triggers pad 1. This is erratic. What sort of scenario would allow correct pressure readings but not velocity?
My suspicion is that there may be some kind of grounding issue. I wonder if the PCB board that gets tucked beneath the pad sensor tray is shorting to the chassis. However, if that were the case then all the pads should stop working. It could one or two bad solder joints on the PCB board, but they all appear okay to the naked eye. The ribbon cable also appears to be correctly seated. I tried reseating it and no change. There are no apparent cracks or scratches in the conductive leads that go from each pad to the end of the ribbon cable...
I wonder if the conductive leads from pad 1 and 2 are shorting to each other somehow....
I've tried both JJOS2 and free Akai OS. The problem is same regardless of which OS.
I am trying to isolate the problem to either the sensor sheet or PCB board.