Table of Contents
Advertisement
5-6. IC PIN FUNCTION DESCRIPTION
IC701 TB2004FN-020-ER(SYSTEM CONTROL)/MAIN BOARD
Pin No.
Pin Name
I/O
1
GND
2
OSC
3
CL
4
IN-1
5
IN-2
6
IN-3
7
IN-4
8
IN-5
9
IN-6
10
IN-7
11
IN-8
12
I/O-1
13
I/O-2
14 – 16
OUT-8 – 6
17
OUT-5
18
OUT-4
19
OUT-3
20
OUT-2
21
OUT-1
22
VDD
23
CONT
24
VCC
–
Ground
–
For generation of system clock (fosc = 3.2 kHz)
I
Reset signal input
I
PAUSE ON/OFF by the PAUSE switch and V•O•R switch "L": ON, "OPEN": OFF
I
Recovery to FWD when opening/closing the cassette lid "L": ON, "OPEN": OFF
I
Direction "L": ON, "OPEN": OFF
I
REC/PB selection "L": ON, "OPEN": OFF
I
FF/REW "L": ON, "OPEN": OFF
I
POWER : ON/OFF "L": ON, "OPEN": OFF
I
Photo reflector pulse input for tape end detection
I
FWD/REV selection "L": ON, "OPEN": OFF
–
Not used
–
Not used
–
Not used
O
LED ON/OFF "L": ON, "OPEN": OFF
O
Audio mute "L": ON, "OPEN": OFF
O
Motor brake "L": ON, "OPEN": OFF
O
Motor direction "L": FWD, "OPEN": OFF
O
Motor ON/OFF "L": ON, "OPEN": OFF
–
Power supply for CMOS block
O
Voltage doubler circuit control output
–
Power supply for bipolar block
Description
— 26 —
Advertisement
Table of Contents
