Doepfer Pocket Dial (device no longer available) - Manual (Page 9)

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User's Guide Page 9
(4) Adjusting the MIDI master channel
To set the MIDI master channel, hold the button labeled CHN at the right side and keep it held down.
The LEDs of bank 1 and 2 will light up (do not let go of the button until the required value has been
selected). In this mode the control knobs become channel selectors, and do not transmit the normal
control data. To select a channel, simply move one of the control knobs that relates to the channel
required (to set channel 5, move control knob 5). As soon as one of the knobs is moved all LEDs turn off
to indicate that the new master channel is adjusted. If you accidentally move the wrong knob, just move
the correct one, as it is the last knob moved that determines the actual MIDI master channel set. The
new master channel is stored into the non-volatile memory as soon as the CHN button is released. After
the next power on this channel will be used as MIDI master channel.
The master channel is used to select which channel the Pocket Dial will transmit on when using relevant
presets. In some presets (such as the MIDI volume - preset 0) each knob is assigned to a different
channel, whilst other presets have all knobs on the same channel, it is on these presets that the master
channel is used. The master channel is also the channel which the Pocket Dial will receive and transmit
MIDI program change data on.
(5) Transmitting MIDI program change messages
To transmit MIDI program change messages, hold the button labeled PRG at the right side and keep it
held down. The LEDs of bank 3 and 4 will light up (do not let go of the button until the desired program
change messages has been sent). In this mode the control knobs #8 is used to transmit program
change messages on the MIDI master channel, and does not transmit the normal control data. The
knobs 1 ~ 7 and 9 ~ 16 have no function while the PRG button is held down.
(6) Clearing an error
As soon as the Pocket Dial recognizes an MIDI overflow (too much data in one go) all four LEDs turn
on (i.e. error display). To clear an error, press one of the 6 buttons.
The error display indicates that the merge capacity of Pocket Dial was exceeded or that SysEx
messages destined for Pocket Dial could not be processed because they were sent too fast.
In both cases probably wrong or incomplete MIDI data have been received by Pocket Dial and/or
transmitted to the MIDI output of Pocket Dial. To avoid errors the transfer of the MIDI data should be
repeated at a lower transmission rate.