Doepfer Schaltwerk (device no longer available) - Manual (Page 31)

Doepfer Musikelektronik GmbH - SCHALTWERK Users Manual - Aug. 1997 - Page 31
9 Troubleshooting
•
If you experience any of the following difficulties
while using the Schaltwerk, look at this troubleshooting
guide to help you remedy the problem.
•
Apparent failures are often related to the particular
behavior of the machine. A deeper understanding of the
functioning circumvents or avoids these troubles.
•
If you can not come to a satisfying solution, then
maybe are you encountering a real hardware or
software problem.
•
In this case, it is recommended that you take contact
with your retailer, distributor or the factory. We will try
to solve your problem in the shortest delay.
9.1 Cabling problems
•
MIDI data cannot be sent or received.
−
Check first that your setup is properly connected.
−
Ensure to use only authentic MIDI cables instead of the
hi-fi, or home-made variety, that could differ from the
MIDI specifications.
−
Try swapping cables to identify if one of them is not
faulty. Especially all cables presenting dents, notches,
cuts or perforations, as well as badly soldered contacts.
•
There is no Sync signal sent nor received.
−
MIDI cables cannot be used to convey the Sync signal.
While they are both of the same mechanical type, their
inner cabling differs. Nevertheless, cables offering the
complete inner cabling do exist, and can be used for
both applications.
−
When connecting to external devices, both devices
cannot be set simultaneously to input or to output. They
should be set differently to get a functional coupling.
9.2 Reception problems
•
If data seems to come in, but leads to strange tuning
results.
−
The receiving device is not set to input mode
−
The Schaltwerk and the receiving device are set to
different MIDI channels.
−
The receiving device is muted by another message
sent out inadvertently (Volume off: control 7 with
value 0), etc.
•
Data seems to be sent by the Schaltwerk, but leads to
strange results.
−
Different MIDI channels are set for the different
functions of the Schaltwerk.
−
The various functions of the Schaltwerk are not
activated properly, set to OFF, or are listening to the
wrong MIDI inputs.
•
The MIDI data present at the MIDI inputs is not
available at the MIDI outputs.
−
The Schaltwerk has no Merge function. The incoming
data is not sent along the onboard generated data to
the outputs. If all you need is to have the data sent to
the Schaltwerk be available to other devices, a THRU
box allows you to have multiple flows of the same
data going to separate MIDI connectors. If you want
your receiving devices to be controlled both by the
Schaltwerk and another source simultaneously, you
need to combine several MIDI flows into one. This is
the work of a Merge box, such as the:
✖ DOEPFER MMR4/4