Yamaha PortaTone PSR-A300 Manual de servicio - Página 14
Navegue en línea o descargue pdf Manual de servicio para Instrumentos musicales Yamaha PortaTone PSR-A300. Yamaha PortaTone PSR-A300 40 páginas.
PSR-A300
IC BLOCK DIAGRAM
HD74LV32AFPEL (IS003200)
Quad 2 Input OR
DMLCD: IC204
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
AK4385ET (X6040A00)
D/A Converter
DMLCD: IC431
MCLK
DZFL
1
16
2
15
BICK
DZFR
3
14
SDTI
VDD
LRCK
4
13
VSS
5
12
PDN
AOUTL+
CSN
AOUTL-
6
11
7
CCLK
7
10
8
AOUTR+
CDTI
AOUTR-
8
9
ADCS7478AIMF (X5892A00)
A/D Converter
DMLCD: IC901
V
DD
1
CONTROL
GND
2
LOGIC
V
IN
3
SUCCESSIVE
T/H
APPROXIMATION
ADC
14
NJM4580E (X2331A00)
Dual Operational Amplifier
DMLCD: IC432
Vcc
14
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
CSN
µP
CCLK
Interface
CDTI
LRCK
Audio
Data
BICK
Interface
SDTI
PDN
CS
6
SDATA
5
SCLK
4
+
V
A Output
1
+V
8
-
A
INPUT
B Output
2
7
-
+
-
A+INPUT
B
INPUT
3
6
+
-
-
B +INPUT
V
4
-V
5
MCLK
De-emphasis
Clock
Control
Divider
∆Σ
8X
SCF
Interpolator
Modulator
∆Σ
8X
SCF
Interpolator
Modulator
SN74LV138ANSR (ISO013810)
DECODER
DMLCD: IC831,832
A
1
16
A
Select
2
B
Y0
15
B
3
14
C
Y1
C
4
G2A
G2A
Y2
13
Enable
5
G2B
Y3
12
G2B
6
11
G1
Y4
G1
Output
7
Y7
10
Y7
Y5
Y6
8
GND
9
VDD
VSS
DZFL
DZFR
AOUTL+
AOUTL-
AOUTR+
AOUTR-
Vcc
YO
Y1
Y2
Output
Y3
Y4
Y5
Y6