Toshiba RAV-SM1603AT-E Service Manual page 93

10-2-4. Distinction of error mode by LED indication of outdoor unit
On the Type AP112, AP140 and AP160, a Dip switch (SW801) and LED are provided on the P .C. board of the
outdoor unit.
Exchanging this Dip switch enables users to know the status of the outdoor unit in that time.
Lighting status of LED enables users to know the distinction stage before trouble of the outdoor unit will be
determined and displayed on the remote controller.
Depending on the indoor unit to be combined, the error of the outdoor temperature sensor (TO) may be
confirmed on LED indication only.
Model Dip switch
SW801
SM160
(MCC-1531)
Bit 1
OFF
ON
OFF
ON
l ²
¡
: Go on, : Go off,
D800
(Red)
Bit 2
OFF
²
l
OFF ——
ON
When this LED lights,
add +16 pulses.
When this LED lights,
add +256 pulses.
ON
Total pulses of LED which lights at the respective positions become PMV opening.
For example, in case of
PMV opening becomes 256 + 32 + 4 + 2 = 294 pulses.
¥
: 1Hz flash, : 5Hz flash
LED
D801
(Yellow)
For error display,
refer to on the next page.
During timer short
l
During pump down operation
²
Protective operation count
Normal time, Count 1
Count2, Count 3
Count 4, Count 5
Count 6, Count 7
Protective operation
PMV opening data (Lower 4 bits data)
When this LED lights, When this LED lights,
add +8 pulses. add +4 pulses.
PMV opening data (Upper 4 bits data)
When this LED lights, When this LED lights,
add +128 pulses. add +64 pulses.
ll ll
¡ ¡ ¡¡
(Upper 4 bits, Lower 4 bits),
– 93 –
D802 D803
(Yellow) (Yellow)
l l
² ²
l l
l
¡
Under backup control
l
¡ ¥
¡ ¡
² ²
When this LED lights,
add +2 pulses.
When this LED lights,
add +32 pulses.