Märklin 7686 Handbuch Seite 10

3. Electrical connections for the turntable
Important: The 7686 turntable is designed to
be operated only on the Märklin Digital H0
system. This turntable cannot be used with
Märklin Digital= for two-rail layouts.
The ribbon cable for the turntable has a
sixpin special plug which is inserted into
the corresponding socket on the receiver.
The center sockets B and 0 on the receiver
are connected to the Digital power circuit
(Central Unit or Booster). The socket L must
be connected to the same transformer as
that supplying the Digital power circuit (ill. 1).
The existing control box for the 7286 Con-
ventional Turntable is no longer needed
when converting this turntable with the 7687
Digital Retrofit Kit. Simultaneous hookup of
the conventional control box and the digital
decoder is not possible.
For digital locomotive operation the sockets
B 0 0 for locomotive power are connected to a
digital power circuit (Central Unit or Booster)
(ill. 1). This power circuit may be different from
that supplying power for controlling the turn-
table.
For conventional locomotive operation the
sockets B 0 0 are connected to a standard
train transformer (example: 6627/6631, ill. 2).
The running rails on the turntable are electri-
cally separated from each other. This will
allow you to use one of these rails for a "track
occupied" feedback signal.
The sockets marked in colors to the right
of the receiver are intended for additional
function indications (see Part 8).
Important Information:
The 7286 turntable has been delivered
since 2002 in a technically different version
that is part of the usual ongoing product
development. The current version of the
7687 has already been designed for this
change. If you have a turntable that was
bought before 2002, then you must have
the turntable and the 7687 electronic cir-
cuit adjusted to work together. You can
have your authorized Märklin dealer send
the 7286 turntable along with the 7687
electronic circuit to the Märklin Service
Department.
Caution: With this adjustment work,
damage is possible to the electronic
circuit or the turntable. These damages
are not covered by the manufacturer's
warranty!
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