VI. 
REEL 
MOTOR 
DRIVE 
CIRCUIT 
R99 
+14 
--------------''Mr---, 
r-
7 
IC 
10 
I 
BA6109 I 
REW------------1. 
I 
I 
FF-----------{ 
5 
I 
I 
u 
(!) 
0 
..J 
11.1 
Q: 
a. 
L 
______ 
_ 
STOP----------------' 
Functions 
IC 
IO 
@ 
is 
"H" 
in 
REW 
mode and then  @ : H and 
@: 
L and the motor turns in the reverse direction. 
IC 
10 
® 
is 
"H'' 
in 
FF 
mode  and  the  @ : 
"H" 
and 
® : 
"L" 
and the motor turns in the normal direction. 
In 
the 
PLAY  mode, 
IC 
IO 
®  becomes 
"H" 
and  the 
motor 
turns, 
but 
voltage  ©  changes  to  voltage  (SY) 
D16 as TRIS 
is 
turned on and voltage  @ 
is 
reduced to 
SY, thus determining the take up tension. 
With  GX-FSI,  F31, 
FF 
input 
is 
@  and 
REW 
input 
is  ®· 
Only  the  outputs 
of 
@  and  ®  are  reversed  and  the 
function remains unchanged. 
1-14 
Q: 
11.1 
> 
Q: 
0 
C44 
7 
I 
I 
I 
I 
I 
__ 
_J 
@ 
L 
H 
IREEL 
MOTORI 
BA6109 
®  ® 
@) 
H  L  H 
L 
H 
L 
Fig. 9  GX-F7 l  Reel Motor Drive Circuit