Toshiba RAV-SM304SDT-TR Service Manual page 119

12-1-3. LED Display on P.C. Board
1. D501 (Red)
• It goes on (Goes on by operation of the main microcomputer) at the same time when the power supply is
turned on.
• It flashes with 1-second interval (every 0.5 second): When there is no EEPROM or writing-in operation fails.
• It flashes with 10-seconds interval (every 5 second): During DISP mode
• It flashes with 2-seconds interval (every 1 second): While setting of function select (EEPROM)
2. D403 (Red)
• It goes on when power supply of the remote controller is turned on. (Lights on hardware)
3. D503 (Yellow): Main bus communication
• It goes on for 5 seconds in the first half of communication with the central controller.
4. D504 (Green): Sub bus communication
• It flashes for 5 seconds in the first half of communication with the remote controller. (Group master unit)
• It flashes with 0.2-second interval (for 0.1 second) for 5 second in the latter half of communication be-
tween master and follower in the Gr indoor unit.
5. D14 (Orange)
• It flashes while receiving the serial signal from the outdoor unit. (Hardware)
6. D15 (Green)
• It flashes while sending the serial signal to the outdoor unit. (Hardware)
12-1-4. Function Selection Setup
<Procedure> Perform setting while the air conditioner stops.
1
TEST SET
CL
Push + +
The first displayed unit No. is the master indoor unit address in the group control.
In this time, fan and louver of the selected indoor unit operate.
2
UNIT LOUVER
Every pushing
played one after the other. In this time, fan and louver of the selected indoor unit only operate.
3
Using the set temperature
4
Using the timer time
5
SET
Push button. (OK if indication lights)
• To change the selected indoor unit, proceed to Procedure
• To change item to be set up, proceed to Procedure
6
TEST
Pushing button returns the status
to the normal stop status.
buttons simultaneously for 4 seconds or more.
button (button at left side), the indoor unit No. in the group control is dis-
buttons, specify the item code (DN).
TEMP.
buttons, select the set data.
TIME
2
.
3
.
3
6
FILTER
RESET
1
<Operation procedure>
1 2
– 119 –
TEMP. ON / OFF
TIMER SET FAN MODE
TIME SAVE VENT
TEST SET CL SWING/FIX UNIT LOUVER
3 4 5 6
4
5
2
END