Toshiba RAS-18YKH-E Service Manual page 34

Indoor Printed Circuit Board (P.C.B.)
MMC-1293
MMC-1275
5V-power source transistor (emitter pin)
B
12V-power source transistor (emitter pin)
A
Switch board
Serial input LED (Orange) from outdoor
J
Serial output LED (Green) to outdoor
K
Reset input (Pin 7)
D
TA sensor input
E
– 34 –
Watchdog timer output
C
(CPU Pin 28)
Power source (R.S.SER)
Transformer
primary side
Temp. fuse
Transformer
secondary side
Light-receiving unit
Buzzer board
Louver
Fan revolution
pulse input
TC sensor input
F