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電子キーボード Yamaha Portatone PSR-530のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha Portatone PSR-530 50 ページ。
PSR-530
• HD63B05V0F073P (XR951A00) CPU
PIN
NO.
NAME
I/O
FUNCTION
PIN
NO.
NAME
I/O
FUNCTION
1
/RES
1
Reset
21
07
I/O
2
/I NT
1
Interrupt request
22
06
I/O
3
NUM
1 '
Non-maskable interrupt
23
05
I/O
4
A7
I/O
24
04
I/O
■
Porte
5
A6
I/O
25
03
I/O
6
A5
I/O
26
02
I/O
7
A4
I/O
Port A
27
01
I/O
8
A3
I/O
28
00
I/O
9
A2
I/O
29
DO
I/O
10
A1
I/O
30
D1
I/O
Port D
11
AO
I/O
31
D2
I/O
12
BO
I/O
32
D3/TX
0
Serial data output
13
B1
I/O
33
D4/RX
1
Serial data input
14
B2
I/O
34
D5//OK
0
Clock for serial operation
15
B3
I/O
Port B
35
D6//INT2
1
Interrupt request 2
16
B4
I/O
36
/STBY
1
Standby mode signal
17
B5
I/O
37
TIMER
1
Timer
18
B6
I/O
38
XTAL
0
Clock
19
B7
I/O
39
EXTAL
1
Clock
20
VSS
Ground
40
VOO
Power supply
■ 1C BLOCK DIAGRAM (IC:^ □ y
• M5227P (XF751A00)
5-Band Graphic Equalizer
• MC34051P (XP094A00)
Dual EIA-422/423 Transceiver
• TC74AC32P (XG658A00)
Quad 2 Input OR
-VCC
GNO
4VCC
OUT
-IN
*\H
NFS
INS
Vcc
4B
4A
4Y
3B
3A
3Y
• TC74AC139P (XL123A00)
Dual 2 to 4 Demultiplexer
• TC74HC374AP (IR037400)
Octal 3-State D-Type Flip-Flop
• pPC4570HA (XB247A00)
Dual Operational Amplifier
14