Doepfer A-100(~ 40 MB) - Manual (Page 10)

2. Overall design System A - 100 doepfer
4
Note: Older A-100 cases manufactured before 2000
may include a former power supply (A-100NT12) that
has only 650 mA available.
2.2 Installing modules
A
Important:
Before you install a module into the A-100
case:
D Calculate the total current requirement
of existing modules plus the new mo-
dule/s.
D Check that this total is less than 1200
mA.
D If it is, the existing power supply is fine.
D If the total current requirement is more
than 1200 mA, a second power supply
has to be installed by qualified personnel.
This cannot be carried out by the user.
But normally 1200 mA are sufficient.
H
Ignoring this warning can result in damage to
your system, and will void your guarantee!
Once you’ve checked that there is sufficient current in
reserve for the extra module/s, there’s nothing to stop
you going ahead and installing them. Read on!
D First of all, take the A-100’s plug out of the wall
socket.
D Plug the supplied ribbon cable into the module’s
bus socket (see 1
in Fig. 2). As a rule, the cable is
16-way, but some modules only have a 10-way
cable. Look carefully at the cable, and then press
the appropriate connector onto the module’s bus
pins (see
2
in Fig. 2).
A
Check very carefully that it is connected so
that the coloured marking on the ribbon
cable is at the bottom of the module’s
connector (see
3
in Fig. 2), and that the
connection is perfect, and pushed fully
home, not at a slight angle. Failure to
check this may result in the module’s instant
destruction as soon as the power is turned
back on.