Toshiba RAV-HM301SDTY-E Service Manual page 33

Optional Connector Specifications of Indoor P.C. Board (MCC-1643)
Connector
Function
HA
CHK Operation check
DISP Exhibition mode
Option control kit
Pin
Specifications
No. No.
①
CN61 ON/OFF input
②
0V
③
Remote controller
prohibited input
④
Operation output
(Open collector)
⑤
DC12 V
⑥
Warning output
(Open collector)
①
CN71
Check mode input
②
0V
①
CN72 Display mode input
②
0V
①
CN521 12V
②
5V
③
Transmission
④
Receive
⑤
0V
HA ON/OFF input
(J01: YES/NO=Pulse (At shipment from factory) /
Static input selection)
Permission/Prohibition of remote controller operation
stop is performed by input.
Operation ON (Answer back of HA)
Warning output ON
This check is used to check indoor operation. (Performs
operation of Drain pump ON without communication
with outdoor and remote controller)
Communication is available by indoor unit and remote
controller only.
Connected Application control kit (
– 33 –
Remarks
TCB-PCUC2E)