Remote Control - Yamaha YSP-900 Service Manual

YSP-900
I REMOTE CONTROL
• SCHEMATIC DIAGRAM
Q5
DTC144EKA
IC2 1pin
22k-ohms
D4
MIE-544A2
R25
2ohms (1/4W)
R26
27ohms
Q3
2SD1781K
C24
4 3
IC6
D6
1 2
C23
C2
0.047
Q1
M1
C1
0.022
2SC2412K
ELM6253-0901F
+3V
78
Q4
DTA113ZKA
R29
IC3 3pin
1
C
SW1
2
C22
R27 D5
510ohms HBR1105W
C3
560P R6
180K
C4
V+
2
R4
-
C6
1
R10
4.7K
680P
IC1
3
+ 4.7K
0.047
V-
NJM2132V
R23
1K
Q2 2SA2119K
D3
+5V
L1 L2
10UH 100uH
RB161M-20
8 7 6 5
IC3 BD815BFVH
1 2 3 4
R24
47K
IC4
8 16 24 32 40 48 56
7 15 23 31 39 47
6 14 22 30 38 46 54
5 13 21 29 37 45
12 20 28 36 44 52
11 19 27 35 43 51
10 18 26 34 42 50
9 17 25 33 41 49
C11
C3
10P
R12 R15
560P
180K 100K
C4 6
- C10 V+
7 6
R14
680P IC1
-
5 7
+ 3.9K
0.047
IC2
5
+
NJM2132V
V-
NJM2132V
IC4 4pin
+3V
R28
6.8ohms
C20 C21
1000µF 2.2mF
6.3V 5.5V
(for BU)
59
58
100uF/16V
OS Cap.
D2
C13
6
-
7
820P
SB01-05Q IC2
5
+
NJM2132V
+5V
Q5 Base