Doepfer MTC64 Power Board - Manual (Page 5)

Construction Notes
• Pay attentuion to all safety rules and laws that are valid in your country.
• The complete construction has to be mounted into an isolating case before
the mains voltage is applied. It has to be impossible for the user to touch
any part that may lead mains voltage (including cables, electronic parts,
fuses, fuse holders, connectors, pcb tracks, wires, cables and so on).
• It is not allowed to operate the MTC power boards without the case
described above.
• If a metallic case is used it has to be connected to the mains shield. The
cross section for this connection has to be more that for the other mains
cables.
• For all wiring and connections parts have to be used (e.g. cables, wires,
switches, connectors) that are specified for 230V~ (resp. 115V in 115V
applications) and the corresponding current.
• In Germany only yellow/green cables are allowed for shield connections.
This color is not allowed for any other function !
• For the mains power supply cable a fuse has to be used the corresponds to
the sum of all loads (max. 16A). This depends upon the number of outputs
in use (e.g. partial version with 2/4/8 outputs only) and the power
consumption of the actual loads (max. 2A for each load).
• The terminal screws have to be tightened very fast to avoid slipping out of
the cables.
• The pc boards has 3 mm mounting holes that can be used to mount the
board to the bottom of the case with screws, washers, nuts and spacers. If a
plastic case is used even plastic screws/washers/nuts/spacers have to be
used. In case of metallic screws/washers/nuts dangerous voltages may
appear at these parts outside the plastic case. If a (grounded) metallic case
is used even metallic screws/washers/nuts/spacers are allowed.
• The minimum distance between the case and all parts that may lead mains
voltage (including the pc board) is 10 mm. Consequently spacers with at
least 10 mm length have to be used to mount the MTC power board on the
bottom of the case.
• The MTC64 main board has to be adjusted to the desired Midi channel, note
number range (resp. program change number range), mode (note or
program change) and polarity before the case that contains both MTC power
board(s) and the corresponding main board is closed. Please refer to the
user's manual of MTC64 main board for details.
• If the outputs of the MTC power board behave the other way round the
polarity of the MTC64 outputs have to be changed.
• The MTC64 main board requires a separate power supply +7...12V, e.g. a
wall outlet version power supply. The power supply for the MTC64 main
board may be put into the case of the MTC power board to have only one
mains connection.