Led Indications On Pcb A Of The Dx-Coil Unit; Setting Of Dip Switches On Circuit Boards - Mitsubishi Electric GUG-01SL-E Handbook

(5) LED Indications on PCB A of the Dx-coil unit

For description of each LED (LED1, 2, 3) provided on PCB A, refer to the following table.
LED1
(Power for microcomputer)
LED2
( Power for remote controller PZ-01RC)
LED3
( Communication between PCB A and
outdoor unit)
If the lighting status of the above LEDs is improper, see (1) and (2).
(6) Setting of the DIP switches (function selection switches) on the circuit boards
The setting of the following DIP switches shall be as shown below (factory setting) and must not be changed.
Change of the setting inhibits the system from operating properly. When replacing the circuit boards, make
sure that the switch settings on the new board are the same as the old board. (All the switches on the service
circuit boards are set to OFF.)
Circuit board
PCB A of the Dx-coil unit
PCB B of the Dx-coil unit
Control circuit board of the Lossnay unit SW7-3 to SW7-10
Indicates whether control power is supplied to PCB A. Make sure that
this LED is always lit.
Indicates whether power is supplied to the remote controller.
Indicates state of communication between PCB A and outdoor unit.
Make sure that this LED is always blinking.
Switch No.
SW1-2, SW1-3, SW1-6
SW1-1, SW1-4, SW1-5, SW1-8
SW2-6 to SW2-8
SW3-1 to SW3-3, and SW3-6 to SW3-8
SW4-1 to SW4-8
SW6-1, SW6-2
SW11-4 to SW11-8
─ 14 ─
Setting
Must be ON
Must be OFF
Must be OFF
Must be OFF