Yamaha PSR-170 User Manual

PSR-170
11
● S6A0069X10-Q0RJ (XV226A00) LCD DRIVER
DM-LCD : IC006
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
O
O
O
O
O
I
I
I
I/O
I/O
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
Vss
OSC1
OSC2
V1
V2
V3
V4
V5
CLK1
CLK2
Vdd
M
D
RS
R/W
E
DB0
DB1
NAME
Segment signal output for LCD
driving
Ground
Oscillator
Oscillator
Power supply
Data latch clock
Data shift clock
Power supply (+5 V)
Altamated signal for LCD driver outout
Display data interface
Read/write
Enable
Data interface
Data interface
FUNCTION
PIN
NO.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
DB2
DB3
DB4
DB5
DB6
DB7
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
NAME
Data interface
Common signal output for LCD
driving
Segment signal output for LCD
driving
FUNCTION
■ IC BLOCK DIAGRAM
1
2
3
4-V
8
7
6
5
Output A +V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+-
+-
● µPC4570G2 (XF291A00)
Dual Operational Amplifier
DM-LCD : IC004
BSBS
FILTER
ST. BY
T . S . D
(N.C.)
BS2
OUT2
Vcc
OUT1
BS1
POWER-GND
STBY
FILTER
NF1
IN1 IN2
NF2
PRE-GND1 PRE-GND2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
● BA5417 (XV771A00)
Power Amplifier
PN-AM 1/2 : IC101

Yamaha PSR-170 Specifications

General

Type	Portable Keyboard
Keyboard	61 keys
Effects	Reverb, Chorus
Polyphony	32 notes
ROM	100 voices
Display	LCD
Presets	100 styles
Connections	Headphones
Power Supply	AC adapter or batteries