Question:
1. When all channels are not connected to any input, the impedance test of all channels shows a resistance value of around 3000k. When one channel is powered down, the resistance value of that channel will decrease by 300k. After powering down 6 channels, the remaining last channel shows a resistance value of around 400k. Why does the closure of a channel cause the resistance value of other channels to decrease?
2. When one channel is connected in series with a fixed resistance value, closing other channels also causes the resistance value measured by this channel to change. Why does the enable of other channels affect the measurement result of the channel?
