Receiver Circuit - Hitachi RAF-35NH5 Service Manual

. Receiver Circuit

MODEL RAD-25NH5, RAD-35NH5
Light receiving
The Light receiving unit receives an infrared signal from the wireless remote control. The receiver amplifies
and shapes the signal and outputs it.
MODEL RAK-18NH5, RAK-25NH5, RAK-35NH5, RAK-50NH5
MODEL RAI-25NH5, RAI-35NH5, RAI-50NH5
12V
R412
R413
The light receiver unit receives the infrared signal from the wireless remote control. The receiver amplifies
and shapes the signal and outputs it.
5V
unit
0V
5V
R411
0V
R419 R611
C405
0V 0V
Fig. 2-1
Fig. 2-2
V
DD
V
out
IRR
GND
Fig. 2-3
- 256 -
Wireless input
13
C611
Micro computer
R611
13 RECEIVER I/P
0V
Microcomputer