Yamaha Portatone PSR-VN300 Servicehandleiding - Pagina 15
Blader online of download pdf Servicehandleiding voor {categorie_naam} Yamaha Portatone PSR-VN300. Yamaha Portatone PSR-VN300 38 pagina's. Service manual
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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
1
16
2
BICK
15
3
14
SDTI
LRCK
4
13
5
12
PDN
CSN
6
11
7
CCLK
7
10
8
CDTI
8
9
• NJM4580E (X2331A00)
Vcc
14
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
DZFL
DZFR
CSN
µP
CCLK
VDD
Interface
CDTI
VSS
AOUTL+
AOUTL-
LRCK
Audio
Data
BICK
AOUTR+
Interface
SDTI
AOUTR-
PDN
Dual Operational Amplifier
DMLCD: IC432
+
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
Divider
Control
∆Σ
8X
Interpolator
Modulator
∆Σ
8X
Interpolator
Modulator
• SN74LV138ANSR ( IS013810 )
DECODER
DMLCD: IC831, 832
A
1
Select
2
B
3
C
4
G2A
G2A
Enable
5
G2B
G2B
6
G1
G1
Output
7
Y7
Y7
8
GND
VDD
VSS
DZFL
DZFR
AOUTL+
SCF
AOUTL-
AOUTR+
SCF
AOUTR-
PSR-VN300
16
Vcc
A
B
Y0
15
YO
14
C
Y1
Y1
13
Y2
Y2
Output
Y3
12
Y3
Y4
11
Y4
10
Y5
Y5
Y6
9
Y6
15