A
B
C
D
E
1
2
3
4
5
6
7
RX-V740/RX-V740RDS/DSP-AX740
RX-V640/RX-V640RDS/HTR-5660/DSP-AX640/DSP-AX640SE
148
VBA
T
VDD1
VDD1
VDD1
C1
470
µ
+
C2
0.1
µ
C3
C4
OPTION
OPTION
OPTION
OPTION
Q4
BA
CKLIT LED
USE LED
X1
4.0MHz
20
11
3
2
1
21
22
19
17
VDD
PC1
PC2
PC0
P17/ANI7
P16/ANI6
P15/ANI5
P14/ANI4
P13/ANI3
P12/ANI2
26
27
28
29
30
31
P1/ANI1
32
33
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
57
58
59
60
61
62
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
1
PA
0
PA
1
PA
0
63
64
PA
1
PA
0
PB7
PB6
PB5
PB4
PB3
PB2
27
28
1
2
7
8
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
9
10
PB1
PB0
14
15
13
VSS
OSC1
OSC2
18
PC3
RES
PC4
C6
0.1
µ
Q3
KST3904
Q2
KST3904
R
R4
560
R11
27k
R12
18k
R13
5.6k
R8
470k
R5
330
R4
560
R2
10
R3
10
Q1
8050D
D3
D2
D4
VDD1
VDD2
PD1
12
PC1
16
VDD1
VDD2
PB7
IC1
R1
100
VBA
T
VDD2
LCD GND
VDD1
BA
TT
C9
0.1
µ
C10
0.1
µ
IC4
D6
IN
OUT
GND
D5
PB3
PB2
PB1
PB0
PB5
PB5
E
K58
K59
K60
K61
K62
K63
K57
V
OL +
CH +
CH –
ST
ANDBY
6
SLEEP
8
PB6
K50
K51
K52
K53
K54
K55
K49
SKIP +
V
OL –
TV PO
WER
12
10
V
-A
UX
MD/CD-R
PB5
12
14
K42
K43
K44
K45
K46
K47
K41
SELECT UP
ST
OP
REC
DISPL
Y
RETURN
D-TV/CBL
DV
D
PB4
K34
K35
K36
K37
K38
K39
K33
DGF
A
V PO
WER
MUTE
PLA
Y
11
9
TUNER
C
PB3
K27
K28
K29
K30
K31
K25
FF
SKIP –
STEREO
TV
V
OL –
VCR 1
VCR2/D
VR
PB2
K18
K19
K20
K21
K22
K23
K17
SELECT DO
WN
TV LOL +
REW
3
1
SYSTEM PO
WER
CD
PB1
PB0
K10
K11
K12
K16
K13
K14
K15
K9
A
UDIO
MENU
P
A
USE
RE-NAME
K64
CLEAR
75
B
PHONO
K2
K3
K4
K8
K5
K6
K7
K1
AMP
TV MUTE SELECT
TITLE
CODE SET
42
A
6CH INPUT
C9
0.1
µ
C1
470
µ
R7
220k
R6
18k
10
11
DGE
8
9
DGD
6
5
DGC
4
3
DGB
2
1
DGA
RX-V740/RX-V740RDS/DSP-AX740
■
REMOTE CONTROL RAV236, RAV237