Yamaha DGX-220 Service Manual page 17

• NT3881DFG-01 (X3148A00) LCD DRIVER
NAME
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 OSC1
25 OSC2
26
27
28
29
30
31 CLK1
32 CLK2
33
34
35
36
37
38
39
40
●
AK4385ET (X6040A00) DAC (Digital to Analog Converter)
PIN
NAME
NO.
1 MCLK
2 BICK
3 SDTI
4 LRCK
5 PDN
6 CSN
7 CCLK
8 CDTI
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I/O
S22 O
S21 O
S20 O
S19
O
S18 O
S17 O
S16 O
S15
O
S14 O
S13 O
S12 O
Segment signal output for LCD
S11 O
driving
S10
O
S9 O
S8 O
S7 O
S6
O
S5
O
S4 O
S3 O
S2
O
S1
O
Vss Ground
I Oscillator
O Oscillator
V1
V2
V3 Power supply
V4
V5
O Data latch clock
Data shift clock
O
Vdd
Power supply (+5 V)
O
M
Alternated signal for LCD driver output
D O Display data interface
RS I
I
R/W Read/write
E I Enable
DB0 I/O Data interface
DB1 I/O Data interface
I/O FUNCTION
I Master Clock
I Audio Serial Data Clock
I Audio Serial Date Input
I L/R Clock
I Power Down mode
I Chip Select
I Control Data Input
I Control Data Input
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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
PIN
NAME
NO.
9 AOUTR- O
10 AOUTR+ O
11 AOUTL-
12 AOUTL+ O
13 Vss
14 VDD
15 DZFR
16 DZFL
NAME I/O
DB2 I/O
DB3 I/O
DB4 I/O Data interface
DB5 I/O
DB6 I/O
DB7 I/O
C1 O
C2 O
C3 O
C4 O
C5 O
C6 O
C7 O
C8 O Common signal output for LCD
C9 O driving
C10 O
C11 O
C12 O
C13 O
C14 O
C15 O
C16 O
S40 O
S39 O
S38 O
S37 O
S36 O
S35 O
S34 O
S33 O
S32 O
Segment signal output for LCD
S31 O
driving
S30 O
S29 O
S28 O
S27 O
S26 O
S25 O
S24 O
S23 O
DMLCD:IC501
I/O FUNCTION
Rch Analog out(-)
Rch Analog out(+)
O Lch Analog out(-)
Lch Analog out(+)
- Ground
- Power Supply
O Rch Data Zero Input Detect
O Lch Data Zero Input Detect
DGX-220/YPG-225
DMLCD:IC601
FUNCTION
17