Yamaha psr-262 Panduan Servis - Halaman 14

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Yamaha psr-262 Panduan Servis
PSR-260/262

LSI PIN DISCRIPTION

• YMW728-F (XU355A00) GEW12 (AWM Tone Generator)
PIN
NAME
I/O
FUNCTION
NO.
1
PL0
I/O
2
PL1
I/O
3
PL2
I/O
4
PL3
I/O
Port L
5
PL4
I/O
6
PL5
I/O
7
PL6
I/O
8
Vdd
Power supply
9
PA0
I/O
10
PA1
I/O
11
PA2
I/O
Port A
12
PA3
I/O
13
PA4
I/O
14
PA5
I/O
15
PB0
I/O
16
PB1
I/O
17
PB2
I/O
Port B
18
PB3
I/O
19
PB4
I/O
20
PB5
I/O
21
Vss
Ground
22
PC0
I/O
23
PC1
I/O
24
PC2
I/O
Port C
25
PC3
I/O
26
PC4
I/O
27
PC5
I/O
28
PD0
I/O
29
PD1
I/O
30
PD2
I/O
Port D
31
PD3
I/O
32
PD4
I/O
33
PD5
I/O
34
Vdd
Power supply
35
PE0
I/O
36
PE1
I/O
37
PE2
I/O
Port E
38
PE3
I/O
39
PE4
I/O
40
PE5
I/O
41
TESTE
I
Test Mode E
42
TESTD
I
Test Mode D
43
Vss
Ground
44 DACLMM
O
1bit DAC Output L (-)
45 DACLPP
O
1bit DAC Output L (+)
46 DACRPP
O
1bit DAC Output R (+)
47 DACRMM O
1bit DAC Output R (-)
48 DAC_Vss
Ground
49
X_O
O
Crystal quarts Output
50
X_I
I
Crystal quarts Input
14
M: IC701
PIN
NAME
I/O
FUNCTION
NO.
51 DAC_Vdd
Power supply
52
SYI
I
Synch. signal
53
ICN
I
Inicial Clear
54
Vss
Ground
55
MA19
O
56
MA18
O
Memory address bus
57
MA8
O
58
Vdd
Power supply
59
MA17
O
60
MA9
O
61
MA7
O
Memory address bus
62
MA10
O
63
MA6
O
64
MA11
O
65
Vss
Ground
66
MA5
O
67
MA12
O
68
MA4
O
Memory address bus
69
MA13
O
70
MA3
O
71
MA14
O
72
Vdd
Power supply
73
MA2
O
74
MA15
O
75
MA1
O
Memory address bus
76
MA16
O
77
MA0
O
78
MA20
O
79
Vss
Ground
80 ROMLOEN O
OEN pin
81
MD15
I/O
82
MD0
I/O
83
MD7
I/O
84
MD8
I/O
Memory data Input / output
85
MD14
I/O
86
MD1
I/O
87
MD6
I/O
88
MD9
I/O
89
Vdd
Power supply
90
MD13
I/O
91
MD2
I/O
92
MD5
I/O
93
MD10
I/O
Memory data Input / output
94
MD12
I/O
95
MD3
I/O
96
MD4
I/O
97
MD11
I/O
98
Vss
Ground
99
MIDII
I
MIDI Input
100
MIDIO
O
MIDI Output
• KS0066U-10B (XV226A00) LCD DRIVER
PIN
NAME
I/O
FUNCTION
NO.
1
S22
O
2
S21
O
3
S20
O
4
S19
O
5
S18
O
6
S17
O
7
S16
O
8
S15
O
9
S14
O
10
S13
O
11
S12
O
Segment signal output for LCD driving
12
S11
O
13
S10
O
14
S9
O
15
S8
O
16
S7
O
17
S6
O
18
S5
O
19
S4
O
20
S3
O
21
S2
O
22
S1
O
23
Vss
Ground
24
OSC1
I
Oscillator
25
OSC2
O
Oscillator
26
V1
27
V2
28
V3
Power supply
29
V4
30
V5
31
CLK1
O
Data latch clock
32
CLK2
O
Data shift clock
33
Vdd
Power supply (+5V)
34
M
O
Alternated signal for LCD driver output
35
D
O
Display data interface
36
RS
I
37
R/W
I
Read/write
38
E
I
Enable
39
DB0
I/O
Data interface
40
DB1
I/O
Data interface
IC BLOCK DIAGRAM
M: IC501
M: IC801, 802
A
B
Select
T . S . D
C
G2A
ST. BY
G2B
Enable
BS
BS
FILTER
G1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Output
Y7
GND
LCD: IC401
PIN
NAME
I/O
FUNCTION
NO.
41
DB2
I/O
42
DB3
I/O
43
DB4
I/O
Data interface
44
DB5
I/O
45
DB6
I/O
46
DB7
I/O
47
C1
O
48
C2
O
49
C3
O
50
C4
O
51
C5
O
52
C6
O
53
C7
O
54
C8
O
Common signal output for LCD driving
55
C9
O
56
C10
O
57
C11
O
58
C12
O
59
C13
O
60
C14
O
61
C15
O
62
C16
O
63
S40
O
64
S39
O
65
S38
O
66
S37
O
67
S36
O
68
S35
O
69
S34
O
70
S33
O
71
S32
O
Segment signal output for LCD driving
72
S31
O
73
S30
O
74
S29
O
75
S28
O
76
S27
O
77
S26
O
78
S25
O
79
S24
O
80
S23
O
M: IC601
1
16
Vcc
A
2
B
Y0
15
Y0
3
C
Y1
14
Y1
4
G2A
Y2
13
Y2
5
G2B
Y3
12
Y3
Output
A
B
-
-
6
G1
Y4
11
Y4
7
Y5
10
1
2
3
4
5
6
7
8
9
Y7
Y5
Y6
+V
-IN
-V
-IN
+V
8
9
Y6
OUT
+IN
+IN
OUT
A
A
A
B
B
B