SECTION  1 
CIRCUIT 
OPERATION 
DESCRIPTION 
TABLE 
OF 
CONTENTS 
I. 
DESCRIPTION 
OF 
GX-F71 
AUTO 
TUNING 
FUNCTION 
............ 
1-
2 
I.  GX-F71  AUTO TUNING BLOCK  DIAGRAM 
................... 
1-
2 
2.  DESCRIPTION 
OF 
GX-F71  AUTO  TUNING  FUNCTION 
.......... 
1-
3 
3.  INPUT OUTPUT MODES 
OF 
EACH  TERMINAL 
OF 
AUTO TUNING CPU (M58841-600P) 
......... 
1-
4 
II. 
GX-F71 
SYSCON 
CIRCUIT 
FUNCTIONS 
....................... 
1-
5 
I. 
GX-F71  SYSCON  BLOCK  DIAGRAM  . . .  . .  . .  . . . . . . . . . . . . . . . . 
1-
5 
2.  MEANING  EACH  TERMINAL OF CPU (LM6402 H063)  . . . . . . . . . .  . 
1-
6 
3.  CONNECTION 
OF 
EACH  TERMINAL 
OF 
IC 
(LC7800) 
FOR EXPANDING  GX-F71  INPUT PORT 
...... 
1-
8 
ill. 
DESCRIPTION 
OF 
GX-FSl 
CIRCUIT 
.
......................... 
1-
9 
I. 
OUTLINE OF  GX-FSl  AUTO TUNING  SYSTEM 
................ 
1-
9 
2.  GX-FSl  AUTO  TUNING BLOCK  DIAGRAM 
................... 
1-
9 
3.  GX-FSI  AUTO  TUNING FUNCTION  DIAGRAM 
................ 
1-10 
4.  GX-FSI  PRE 
AMP 
BLOCK  DIAGRAM 
....................... 
1-11 
N. 
AUTO 
FADER 
CIRCUIT 
.................................. 
1-12 
V. 
CAM 
MOTOR 
DRNE 
CIRCUIT 
............................. 
1-13 
VI. 
REEL 
MOTOR 
DRNE 
CIRCUIT 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
1-14 
1-1