Akai GX-F51

3. CONNECTION OF EACH TERMINAL OF IC (LC 7800)
FOR EXPANDING GX-F71 INPUT PORT
1-8
PIN
1
2
3
4
5
6
7
8
9
IO
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Items connected to IC3
Items
connected to IC4
PLAY
SW
REC SW
FF SW
REW SW
EJECT SW
STOP SW
AUTO FADER SW
AUTO MUTE SW
REC CANCEL SW
AUTO LOADING SW
RESET SW
TAPE/TIME SW
GND
GND
MEMORY
SW
IPLS SW
OPEN ("H'') (No connection)
R104 of cam motor drive circuit
TIMER PLAY
SW
TIMER REC SW
ANTIREC SW
+5 Y (No connection)
+SY (No connection)
+SY (No connection)
+5 Y (No connection)
+SY (No connection)
MICON PIN2
GND
C-stop signal
of cam motor drive circuit
TUNING
MI CON PIN 35 ( For Mcchacontrol )
TUNING MICON PIN 36 Signal
TUNING MICON PIN 3 When TUNING
Mechacontrol signal from TUNING MICON
TUNING
MICON
PIN
I
SYSCON • NON I
• MICON OPER- STOP FF REW .
PIN ATION
REC/
I REC/ I TEST
PLAY PAUSE
I OFF
35 (0
0
)
MECHACON I
36 (01)
MECHACON II
3 (02)
MECHACON III
+SY
MICON PIN 2
34 (Al)
L
35 (A2) L
36 (A3) L
H
L
H
I
L H H
L
L
L
SYSCON MICON PIN
40 (B3)
SYSCON MICON PIN 39 (B2)
SYSCON MICON PIN 38 (Bl)
SYSCON MICON PIN 37 (BO)
SYSCON MICON PIN 33 (AO)
SYSCON MICON PIN
34 (Al)
SYSCON MICON PIN 35 (A2)
SYSCON MICON PIN 36 (A3)
+SY
+SY
L
I
H
L
L L L
H H L
I
I
I