Akai GX-77 Service Manual

NOTES:
Bias Filter
Adjustment Test re Adjustment
Set TAPE SELECTOR to
Less than “EE”. Tape Speed 7-1/2 ips.
-30 dBm Line Volume at MAX.
1 See NOTE 8.
Fig. 41
. Output Level Control should be at maximum.
. Except for Steps 7, 8 and 9, set Tape Speed to 7-1/2 ips.
.
Except
for
Steps
3,9
to
12
and
14,
set
Tape
Selector
Switch
to
NORMAL
Position.
.
Set
Bias
Adjustment
Volume
to
center
position.
. Use the following open measuring tapes:
NORMAL Tape: Maxell UD
EE Tape : Maxell XLII
TDK SA
.
If
it
does
not
comply
with
the
specifications,
repeat
Steps
5
to
9
and
10,
and
re-adjust.
.
Light
the
bar
meter
in
the
ascending
order
with
VR10
and
set
VR1O
in
position
immediately
when
0
dB
is lit.
.
Unless
the
core
is
moved
intentionally
this
adjustment
is
not
necessary.

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