– 29 –
Pin No.
Pin Name
I/O
Description
41
SPEED SW
I
Recording time mode selection signal input from the REC TIME switch (S1)
“L”: normal, “H”: double (1/2 speed)
42
RESTART
O
Motor restart control signal output to the capstan/reel motor driver (IC601)
“H”: fast forward/rewinding
43
MOTOR CTL
O
Motor start control signal output to the capstan/reel motor driver (IC601)
“L”: the motor is rotating, “H”: the motor is stopped
44, 45
NC
—
Not used (open)
46
MOTOR DIR
O
Motor direction control signal output to the capstan/reel motor driver (IC601)
Output “L” only when rewinding “L”: counterclockwise, “H”: clockwise
47
BEEP
O
BEEP sound signal output to the PB amp (IC301)
48
TAPE SW
I
Cassette tape detect switch (S702-2) input terminal “L”: cassette detected, “H”: no cassette
49
NC
—
Not used (open)
50
WAKE UP
I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept key entry
in the power off status or hold the key status “H”: key is pressed
51
SPCON OFF
O
Variable/not variable switching signal output to the playback speed control circuit
Output “H” only when playback “H”: playback speed is variable
52
SPEED CTL
O
Switching signal of recording time mode output to the speed control circuit for motor rotation and
recording bias control circuit “L”: double (1/2 speed), “H”: normal
53
CS
O
Chip select signal output to the LCD driver (IC1)
54
SD
O
Serial data output to the LCD driver (IC1)
55
SCK
O
Serial data transfer clock signal output to the LCD driver (IC1)
56
NC
—
Not used (open)
57
AVSS
—
Ground terminal (for A/D converter)
58
NC
—
Not used (open)
59
AVR
I
Reference voltage (+3V) input for the A/D converter
60
KEY IN2
I
Key input terminal (A/D input) S8 to S10 (COUNTER RESET, EASY SERCH +/–)
61
KEY IN1
I
Key input terminal (A/D input) S2 to S7 (STOP
x
, PLAY/DIR
bB
, FF/CUE
M
,
REW/REVIEW
m
, REC, PAUSE
X
)
62
MD SW
I
A tape rotating direction detect signal input from the direction switch (S701) (A/D input)
“L”: FWD direction, center voltage: REV direction, “H”: stop
63
BATT DET
I
Battery voltage detection signal input (A/D input)
64
NC
—
Not used (open)
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
