– 110 –
Indoor P.W.B.
Outdoor P.W.B.
Terminal board
Terminal board
IF receive
input(RXD2)
IF transmit
output(TXD2)
Microcomputer
D821
R826
R821
C822
R813
C821
C802
5V
R807
IC801
R805
R825
0V
0V
C803
C804
C805
0V
0V
0V
0V
R823
R811
5V
5V
5V
5V
5V
5V
C824
0V
R830
R829
R827
R828
Q801
0V
5V
0V
0V
0V
0V
R803
R804
C801
R806
R810
Q803
R812
Q802
50
49
D
C
D
C
I/F 0V
D101
5
6
7
5V
R822
R824
C823
3
2
1
IC801
Q821
(Communications from outdoor microcomputer to indoor microcomputer)
(Communications from indoor microcomputer to outdoor microcomputer)
Fig. 3-1 Indoor/outdoor interface Circuit
Fig. 3-1 shows the interface circuit used for the indoor and outdoor microcomputers to communicate with each other.
Summary of Contents for RAC-25FX8
Page 44: ... 49 MODEL RAC 25FX8 RAC 35FX8 SELF CHECK SELF MODE FORCECOOLING RED RED RED ...
Page 48: ...BASIC MODE MODEL RAF 25FX8 RAF 35FX8 57 button 63 67 67 71 75 67 ...
Page 148: ... 166 SELF DIAGNOSIS LIGHTING MODE MODEL RAC 25FX8 RAC 35FX8 ...
Page 191: ...TC NO 0780EF RAF 25FX8 RAC 25FX8 RAF 35FX8 RAC 35FX8 Printed in Japan HRT ...