Remote Control - Yamaha A-S700 Service Manual

A B
A-S700

■ REMOTE CONTROL

1
SCHEMATIC DIAGRAM
VDD
C1 + C4
2
47uF/10V 0.1uF U1 SC73P1601
1
GND VDD
2
P50 P53
3
P51 P23
4
XT1 P22
3
C2 X1
3.84MHz
C3
5
XT2 P21
6
P52 P20
7
P00 P13
8
P01 P12
4
9
P11
P02
10
P03 P10
5
6
7
60
C D
R1
3.3 ohms
20
19
220 ohms
K32 K24 K16 K8 K40 K48
18
K31 K23 K15 K7 K39 K47
17
K30 K22 K14 K6 K38 K46
16
K29 K21 K13 K5 K37 K45
15
K28 K20 K12 K4 K36 K44
14
K27 K19 K11 K3 K35 K43
13
K26 K18 K10 K2 K34 K42
12
K25 K17 K9 K1 K33 K41
11
E F
PANEL
IR-LED
IR1
R2
Q1
KTC8050S
VDD
R3
15 K ohms
RAS7
WQ06690
G H I
KEY NO. LAYOUT KEY CODE
NO. Customer Code
1 7986
3 7986
1 2 3
4 7986
4 5 6
5 7986
7 8 9
6 7986
7 7986
10 11 12
8 7986
13 14 15
9 7986
10 7986
16 17 18
12 7986
19 20 21
13 7986
15 7986
22 23 24
16 7986
25
18 7986
26 27 28
19 7986
21 7986
29
22 7986
23 7986
24 7986
25 7986
26 7986
27 7986
28 7986
29 7986
J
Data Code Function
6F90
01FE
54AB PHONO
TUNER
0AF5 CD
11EE LINE1
12ED LINE2
13EC LINE3
14EB PRESET
16E9 PRESET
17E8 BAND
19E6 A/B/C/D/E
10EF
0DF2
0CF3
1BE4
05FA
09F6
06F9
55AA VOL +
04FB INPUT
02FD MUTE
07F8 INPUT
56A9 VOL -