Toshiba MMK-AP0074MH-E Service Manual page 62

Check code
Wired Outdoor 7-segment display
remote
Check code Auxiliary code
controller
L05 — —
L06 L06 No. of indoor units with priority
L07
— —
L08 L08 —
L09 — —
L10 L10 —
L20 — —
L28 L28 —
L29 L29
A-3-IPDU
FAN
IPDU
1 2 3
01 ¡
02 ¡
03 ¡ ¡
04 ¡
05 ¡ ¡
06
¡ ¡
07 ¡ ¡ ¡
08 ¡
09 ¡ ¡
L30 L30 Detected indoor address
— L31 —
Detected
Check code name
position
I/F Duplicated indoor units with priority
(Displayed on indoor unit with priority)
I/F Duplicated indoor units with priority
(Displayed on the unit other than
indoor unit with priority)
Indoor Group line in individual indoor unit.
Indoor Indoor group / address unset
Indoor Indoor capacity unset
I/F Outdoor capacity unset
TCC-Link Duplicated central control addresses
Indoor
I/F Quantity over of connected outdoor
units
I/F IPDU quantity error
A-3-IPDU
FAN
IPDU
1 2 3
0A ¡ ¡
0B ¡ ¡ ¡
0C ¡ ¡
0D ¡ ¡ ¡
0E ¡ ¡ ¡
0F ¡ ¡ ¡
¡
¡ mark:
Error position.
Interlock in indoor unit from outside
Indoor
Extended IC (Integrated Circuit) error
I/F
Status Error detection condition
All stop Indoor units with priority were
duplicated.
All stop Indoor units with priority were
duplicated.
Corresponding At least one indoor unit
unit only stops. connected to a group existed in
the individual indoor units.
Corresponding Address was not yet set up.
unit only stops.
Corresponding Indoor unit capacity was unset.
unit only stops.
All stop On the I/F P .C. board for
service, jumper line was not cut
according to the model.
All stop Duplicated central control
addresses
All stop There were more than four
outdoor units.
All stop No. of IPDU units detected
when power was turned on
were less.
Corresponding • Outside error input terminal
unit only stops.
Detected signal to (CN80) for
more 1 minute
Operation P .C. board (I/F) parts error
continues.
Check item (position)
• Check display of indoor unit with priority.
• Check display of indoor unit with priority and outdoor
unit.
• Check indoor address.
• Check indoor address.
Note)
After installation, this code is displayed when the power
is firstly turned on.
Set up indoor capacity. (DN=11)
Check model setup on outdoor I/F P .C. board A'ssy for
service.
• Check central control address.
• Check network adaptor P .C. board.
(In case of TCC-Link)
• Check No. of connected outdoor units.
(Max. 4 units per 1 system)
• Check communication line between outdoor units.
• Check outdoor P .C. board (I/F) error.
• Check model setup for outdoor I/F service P .C. board.
• Check connection of UART communication connector.
• Check Comp. IPDU, fan IPDU, and I/F P .C. board error.
Note)
UART: Universal Asynchronous Receiver Transmitter
n Outside device is connected to connector (CN80):
1) Check outside device error.
2) Check indoor P .C. board error.
n Outside device is not connected to connector (CN80):
1) Check indoor P .C. board error.
Check indoor (I/F) P .C. board.