Toshiba SUPER MMK-AP0073H (IN) Service Manual page 141

C) In case that power of the indoor units cannot be turned in individually. (
a) Remove all CN41 connectors of the indoor units in the same group except those of the exchanged
indoor unit.
b) Turn on power of the indoor units and proceed to
H3
∗ After
connector to the original connection.
Indoor unit
(Case 1)
Indoor unit
(Case 2)
Remove CN41 connectors of the indoor units other
than the units to be changed in the same group.
P.C. board parts layout drawing
Method of DIP switch setting
Bit 1 Terminator resistor (for central control)
SW01
Bit 2 Remote controller A/B selection
Bit 1 Custom / Multi model selection
SW02
Bit 2 No use
∗1 : Match to set up contents of P .C. board before replacement.
operation has finished, be sure to return the temporarily removed group wire or CN41
P.C. board
A B A B
Group wire
P.C. board
CN41
A B A B
<MCC-1510>
Selected content
H3
.
Indoor unit
A B
×
Remote
controller
Indoor unit
A B
Group wire
Remote
controller
SW02
1
SW01
2
ON 2
1
IC10
MMK-AP
ON
OFF
141
CASE 2
)
Service P.C. board of the unit to be changed
Remove the group wire of the
terminal blocks A and B of the
changed indoor unit, and then
install the remote controller only.
Service P.C. board of the unit to be changed
ON
DIP switch (SW01, SW02)
J01
EEPROM (IC10)
3H series At shipment
1 OFF (Without terminator)
1 OFF (A selection)
ON (Multi model)
OFF