Akai GX-A5

CAUTION:
Connect
a
resistor
(22
kohms)
between
LINE
OUT
and
GND,
while
PB
LEVEL,
PB
EQ,
REC
LEVEL
and
each FREQUENCY RESPONSE adjustments.
Adjustment Test Tape & Adjustment
Ste
iy
Pi
|justmen
“P|
Item
Supply
Signal
|
Mode
Point
eis
Remaths
315Hz —6.040.2dBm
1 | PBLEVEL or PB ae or
333Hz (ch) | _6.620.24Bm
VRI(Lch)
2 PBE 10kH: PI —21.0 +11
Q Iz. 'B VRIb(Reh) 21.0 +1.0dBm
Normal Normal
3 Position Blank Tape REC/PB VR 6 (Lch) 1kHz, 10kHz
Frequency 1kHz, 10kHz VR 6b (Rch) Flat +0.3dBm
Response —26.0dBm
CrO2 CrO2
Position Blank Tape 1kHz, 10kHz
$ Frequency 1kHz, 10kHz REC/PB ie Flat +1.0dBm
Response —26.0dBm
Metal Metal
Position Blank Tape 1kHz, 10kHz
5 | Frequency 1kHz, 1okHz | RPC/PB vee Flat #1,0dBm
Response —26.0dBm
Normal
Blank Tape VR 3 (Leh)
6 REC LEVEL 315Hz REC/PB VR 3b (Rch) —6.0+0.5dBm
—6.0dBm
Metal REC
7 BIAS Blank Tape or FL 1 (ich) Less than
Filter No Signal REC FL 1b (Rch) —46dBm
Input PAUSE
é MPX puaraiee REC FL2(Lch) | — Less than Set DOLBY NR SW to
Filter 19kHz, 0dBm PAUSE FL 2b (Rch) ~35dBm DOLBY-B or DOLBY-C.
Meter Waetas REC | VR7(Lch) ovu
Sensitivity 1kHz, —6.0dBm PAUSE VR 7b (Rch) | INDICATION
HX-A3X ONLY.
Set the dbx SW to dbx|
10
Gales
ad)
piesa
STOP
VR8
15mV+0.15mV
|
disc.
Connect
the
digital
ee voltmeter between TP1
(and TP2 (4).
NOTE:
1.
Above
adjustment
except
for
step
8
and
step
10,
adjustment
should
be
made
with
Dolby
NR
and
dbx
at
OFF
POSITION.
-2, Use the following cassette measuring tapes:
NORMAL TAPE : Maxell UDI C-60
CrO2
METAL TAPE :
TAPE : TDK SA C60
TDK MA C-60
3. Refer to Fig. 6-1, for above adjustments.
SERVICE MANUAL GX-A5 [Xe ————— rn
13