Akai GX-77 Service Manual

-——
Se
7)
STOP
>
FF
>
RWD
Mode
_
is
applied
to
each
reel
motor.
For
the
brake
PLG,
If,
in
FF
and
RWD,
2)
(O
FAST)
becomes
“H”,
@)
(QT
relay)
is
“H”
for
0.4
sec.
and
during
the
TR26
and
27
“ON”
and
RL]
“ON”,
and
+12V
time,
+36V
and
then
reduced
to
+14V.
FF,ON" REW ON"
STOP (LOADED) Ne re ee ey ee t
+10V
ic 1 (2)
(REEL MOTOR R)
! |
1c | 0.4 sec 0.4 sec
(oT)
1 @ |
(REEL MOTOR L)
J
1c 1 4) | |
(0
FAST)
|
|
|
1
@)
|
!
(BRAKE
PLG)
|
|
{
I
| +l2Vv
REEL MOTOR R | |
| t
| +12V
REEL MOTOR L
|
1 @ |
(P.8 MUTE) '
ALL H
8) FF + FWD Mode
Ic 1(2)
eeti-GronsRA
|
——}
—oereno
on
counter
REVOLUTION
|
|
1 |
|
1c 14)
(0 FAST)
i
|
1c 1@9) |
(BRAKE PLG) |
ic1@6) |
(FWD)
|
Ic 1@9 | 0.4 sec
(OT)
ic 164)
I
|
{
(P.8 MUTE) I
|
Vv
+3Vv
REEL MOTOR R ov
Fig. 14
16

Akai GX-77 Specifications

General

Track System	4-track, 2-channel stereo
Tape Speed	3 3/4 ips, 7 1/2 ips
Wow and Flutter	0.03% (19 cm/s)
Heads	3
Motors	3
Dimensions	440 x 244 x 358mm
Inputs	Line input (RCA)
Outputs	Line, Headphones