Toshiba RAS-3M18S3AV-E Service Manual page 83

Service Support Function (LED Display, Switch Operation)
1. Outline
A various setup and operation check can be performed by the pushdown button switches (SW01,02)
on the outdoor P.C. board(Display PCB).
Operation part and Display part on MCC-1646 (Display PCB)
Part No. Specifications
SW01,02 Pushdown button switch
D805
D801 to D804 Yellow LED
Display part on MCC-1665(Control PCB)
Part No.
D502, D511, D517
D501, D508, D515
* Every LED is colorless when it goes off.
Control P.C.B MCC-1665
D501,D508,D515 (Green LED)
:Serial signal (Outdoor → Indoor)
Performs the specific operation to check maintenance and
various initial settings.
(1) Power-ON display
Green LED
When the power of the outdoor unit is turned on, D805
LED goes on.
(2) Error display
When the outdoor controller detects some errors, some
LEDs go on or flash according to the error as described
in Error display table. (Refer to ---)
(3) Specific operation display
When SW01 or SW02 is pushed and a specific operation is
operated, some LEDs go on or flash.
Specifications
Indoor/Outdoor communication (Serial communication)
Orange LED
signal display (Receive signal from indoor signal)
Indoor/Outdoor communication (Serial communication)
Green LED
signal display (Send signal from outdoor signal)
Operation contents
Operation contents
D502,D511,D517 (Orange LED)
:Serial signal (Indoor → Outdoor)
- 83 -
FILE NO. SVM-15102