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•Be sure to ask a qualified industry specialist or your nearest dealer to take
out the PCB unit. (You will be charged.)
•Before removing the PCB unit, be sure to turn OFF the main power switch
and unplug the power cord from the receptacle.
•There are high-voltaged parts inside the product. Other persons than
qualified industry specialist should not open the side door. When the
side door is opened, pay due attention not to touch the inside unnecessarily.
•Do not touch the PCB unit with wet hands.
•Keep the PCB unit’s DIP switches at the factory settings.
•Strictly refrain from disassembly and repair of parts which are not indicated
in this manual, as well as settings and remodelling.
7-8 Taking out the PCB unit
How to take out the PCB unit
1 Be sure to turn OFF the main power
swith and unplug the power cord
from the receptacle.
2 Detach the side door of the control
unit (see at right).
3 Disconnect all the connectors from
the PCB unit as well as the
connectors 1 and 2.
Screws
Side door
Do not disconnect
these cables.
Sound cable
(red / white)
1
2
PCB unit
7-segments display
7 Maintenance