Toshiba MMD-AP0726HP-UL Service Manual page 73

Check codes Detected by TCC-LINK Central Control Device
Check code
Outdoor 7-segment display
Main
remote
control Sub-code
C 0 5 –
C 0 6 –
C 1 2 –
Differs according to
nature of alarm-causing
trouble
P30
(L20 displayed.)
Location
of Description System status
detection
TCC-LINK TCC-LINK Continued
central control operation
device
transmission
trouble
TCC-LINK
Continued
central control operation
device reception
trouble
Batch alarm
General- Continued
purpose for general- operation
device purpose device
I/F control interface
TCC-LINK Group control Continued
follower unit operation
trouble
Duplicated Continued
central control operation
address
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Trouble detection
Check items (locations)
condition(s)
Central control device is • Check for defect in central
unable to transmit signal. control device.
• Check for defect in central
control communication
line.
• Check termination
resistance setting.
Central control device is • Check for defect in central
unable to receive signal. control device.
• Check for defect in central
control communication
line.
• Check terminator resistor
setting.
• Check power supply for
devices at other end of
central control
communication line.
• Check defect in P.C.
boards of devices at other
end of central control
communication line.
Trouble signal is input to • Check trouble input.
control interface for general-
purpose devices.
Trouble occurs in follower
• Check check code of unit
unit under group control. that has generated alarm.
([P30] is displayed on central
control remote control.)
There is duplication in central • Check address settings.
control addresses.