CT-S670D
33
7. GENERAL INFORMATION
7.1 PARTS
PD5431A (IC501: MAIN UNIT)
System Control Micro-computer
7.1.1 IC
No.
Name
I/O
Description
1
MTRR
I
Level meter R ch input
2
MTRL
I
Level meter L ch input
3
XNRR
O
NORMAL Tape Recording: “L”
4
XNRL
O
NORMAL Tape Recording: “L”
5
METR
O
METAL Tape Recording: “H”
6
METL
O
METAL Tape Recording: “H”
7
VCOI
O
DIR VCO oscillation control Stop: “H”
8
SCK
O
Clock output to DSP
9
SO
O
Data output to DSP
10
SI
I
Data input from DSP
11
RSTB
O
Reset output to DSP
12
PDB
O
Power down output to DSP
13
RQB
O
Request output to DSP
14
CSB
O
DSP chip select
15
RM2
O
Motor driver control terminal 2
16
RM1
O
Motor driver control terminal 1
17
RM0
O
Motor driver control terminal 0
18
RMPL
O
Reel motor torque control terminal
19
XL3
I/O
BLE · XD BIAS control terminal 3 (L ch)
20
XL2
I/O
BLE · XD BIAS control terminal 2 (L ch)
21
XL1
I/O
BLE · XD BIAS control terminal 1 (L ch)
22
XL0
I/O
BLE · XD BIAS control terminal 0 (L ch)
23
XR3
I/O
BLE · XD BIAS control terminal 3 (R ch)
24
XR2
I/O
BLE · XD BIAS control terminal 2 (R ch)
25
XR1
I/O
BLE · XD BIAS control terminal 1 (R ch)
26
XR0
I/O
BLE · XD BIAS control terminal 0 (R ch)
27
SOLA
O
Solenoid control terminal A
Pin Function
No.
Name
I/O
Description
28
SOLB
O
Solenoid control terminal B
29
CPM
O
Capstan motor control terminal
30
DIG1
O
Digital input select terminal 1
31
DIG2
O
Digital input select terminal 2
32
SSEN
I
Supply side sensing input terminal
33
REMT
I
Remote control input terminal
34
POFF
I
Power off input terminal
35
REST
I
Reset input terminal
36
XCIN
I
Sub clock input terminal
37
XCOUT
O
Sub clock output terminal
38
XIN
I
Clock input terminal
39
XOUT
O
Clock output terminal
40
VSS
I
GND
41
X12V
O
VC12V control terminal “H”: 12V ON
42
TSEN
I
Take up side sensing input terminal
43
BIAS
O
Bias control terminal “H”: Bias ON
44
TOCD
O
CD SYNCHRO control terminal
45
SW3
Switch input terminal 3
|
|
I
|
48
SW0
Switch input terminal 0
49
RMPS
O
PLAY torque SLOW terminal (Used at DTC)
50
DAT
I/O
EEPROM/DAC data input/output terminal
51
CLK
O
EEPROM/DAC clock input/output terminal
52
NC
I
OPEN
53
CSDA
O
DAC chip select terminal
54
ERR
I
DIR error input terminal
55
441k
I
f=44.1 input terminal
56
EMPH
I
Emphasis input terminal
¶
The information shown in the list is basic information and may
not correspond exactly to that shown in the schematic diagrams.