Yamaha PortaTone PSR-2000 Manual de serviço - Página 2

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Yamaha PortaTone PSR-2000 Manual de serviço
LSI PIN DESCRIPTION
HD63266F (XI939A00) FDC················································································································· 13
AK5351-VF-E2 (XV510A00) ADC ········································································································ 13
HD6417709F80B (XV250B00) CPU····································································································· 14
TC203C760HF-002 (XS725A00) SWP30B ·························································································· 15
HG73C205AFD (XU947C00) SWX00B ································································································ 16
YSS236-F (XT013A00) VOP3 ·············································································································· 17
µPD789022GB-A15-8E (XZ560100) CPU KBS···················································································· 18
S1D13305F00B100 (XQ595A00) LCDC ······························································································ 18
AD1854JRSRL (XY782A00) DAC ········································································································ 19
HD63266F (XI939A00) FDC (Floppy Disk Controller)
PIN
NAME
I/O
NO.
1
8"//5"
I
Data transmission speed
2
XTALSET
I
Clock select
3
/RESET
I
Rest
4
E//RD
I
Enable/Read
5
RW//WR
I
Read/write/Write
6
/CS
I
Chip select
7
/DACK
I
DMA acknowledge
8
RS0
I
Register select
9
RS1
I
10
VSS1
Ground
11
VSS2
12
D0
I/O
13
D1
I/O
14
D2
I/O
15
D3
I/O
Data bus
16
D4
I/O
17
D5
I/O
18
D6
I/O
19
D7
I/O
20
/DREQ
O
DMA request
21
/IRQ
O
Interrupt request
22
/DEND
I
Data end
23
VSS3
Ground
24
1/2 EX1
25
VCC1
Power supply
26
NUM1
I
27
NUM3
I
28
IFS
I
Host interface select
29
SFORM
I
Format data
30
/INP
I
Index pulse
31
/READY
I
Ready from FDD
32
/WPRT
I
Write control signal
AK5351-VF-E2 (XV510A00) ADC (Analog to Digital Converter)
PIN
NAME
I/O
NO.
1
AINR+
I
Analog signal input (R channel +)
2
AINR-
I
Analog signal input (R channel -)
3
VREF
O
Reference voltage
4
VA
-
Analog power supply
5
AGND
-
Analog ground
6
AINL+
I
Analog signal input (L channel +)
7
AINL-
I
Analog signal input (L channel -)
8
TST1
I/O
Test mode setting 1
9
HPFE
HPF on/off
10
TST2
I/O
Test mode setting 2
11
TST3
I/O
Test mode setting 3
12
VD
-
Digital power supply
FUNCTION
FUNCTION
PIN
NAME
I/O
NO.
33
/TRKO
I
Track 00 signal
34
/INDEX
I
Index signal
35
/RDATA
I
Read data input from FDD
36
XTAL2
Clock
37
EXTAL2
38
NC
39
XTAL1
Clock
40
EXTAL1
41
VSS4
Ground
42
VSS5
43
NC
44
VCC2
45
VCC3
Power supply
46
VCC4
47
/WGATE
O
Write control
48
/WDATA
O
Writ data to FDD
49
VSS6
Ground
50
/STEP
O
Step signal to control head of FDD
51
/HDIR
O
Direction
52
/HLOAD
O
Head load
53
/HSEL
O
Head select
54
VSS7
Ground
55
/DS0
O
56
/DS1
O
Drive select
57
/DS2
O
58
/DS3
O
59
VSS8
Ground
60
/MON0
O
61
/MON1
O
Motor on
62
/MON2
O
63
/MON3
O
64
VSS9
Ground
PIN
NAME
I/O
NO.
13
DGND
-
Digital ground
14
TST4
I/O
Test mode setting 4
15
AMODE2
Interface clock select 2
16
/PD
I
Power-down mode
17
MCLK
I
Master clock input
18
SCLK
I/O
Serial data clock
19
LRCK
I
Input/Output channel clock
20
FSYNC
I/O
Frame synch. clock
21
SDATA
O
Serial data output
22
CMODE
I
Master clock select
23
SMODE1
I
Interface clock select 1
24
VB
-
Digital power supply
PSR-1000/PSR-2000
DM: IC300
FUNCTION
DM: IC800 (PSR-2000)
FUNCTION
13