Akai GX-646

REC HEAD
AUDIO
OSCILLATOR
(23.2KHz)
AC VOLT METER
Fig.
17
Rec
Peaking
Adjustment
Instrument
Connection
AC VOLT METER
(LEFT)
REC HEAD
AC VOLT METER
(RIGHT)
Fig. 18 Rec Peaking Adjustment
[
ADJUSTMENT
|
TEST
TAPE
ADJUSTMENT
|
|
oe
ITEM
SUPPLY
SIGNAL
|MOPF|
point
RESELL
REMORS:
FWD
Playback
|
700
Hz
7-1/2
i
Vs
|
040.5
4B
zal
~|
aybac
z
7-1/2
ips.
+0.5
dBm
:
Level
0
VU
Test
Tape
eevee
VEO
SOES
(0.775V)
|
‘
“|
REV
Playback
|
700Hz7-1/2ips.
|
pey
|
R650
ia.
|
0
+0.5
dBm
|
Level
0
VU
Test
Tape
|
_(0.775V)
|
|
Set
TAPE
SELECTOR
93.2
kHz
from
Maximum
AC
|
to
“NORMAL”
3
REC
Peaking
es
Oscillator
REC
VLi
1
mH
Voltmeter
|
Tape
Speed
3-3/4
ips.
indication
See
NOTE
6,
7,
9
and
ai
|
|
Figs.
16,
17,
18.
Set
TAPE
SELECTOR
to “NORMAL”
4
BIAS
OSC
REC
TI
100
0.5
kHz
|
18Pe
Speed
7-1/2
ips.
Connect a Frequency
Counter between TP
he
[and
GND.
Fig.
16.
|
oe
——
—
17