Akai HX-R44

Adjustment Test Tape & ADJ.
Step lee Supply Signal Mode Pirie Results Remarks
— >
FWD 333Hz (AT-750773) FWD —6.1 0.2 dBm
1 PB Level or PB VRS or
my 315 Hz (AT-750773) —5.5+0.2 dBm
- = +
REV 333 Hz (AT-750773) REV | 6.1 +0.2 dBm
2 PB Level or PB | or Confirmation
. 315 Hz (AT-750773) —5.5 +0.2 dBm
+ +
Normal
aad Normal Blank Tape
3 Position 1 kHz, 10 kHz REC/PB VR7 1 kHz, 10 kHz
Frequency Flat + 0.3 dB
—25.5 dBm
Response
CrO,
ne CrO, Blank Tape
4 eacagee 1 kHz, 10 kHz REC/PB, VR3 ae ers
ee —25.5 dBm ee
Response
Metal
hie Metal Blank Tape
5 ewes 1 kHz, 10 kHz REC/PB) VR2 isda ea
Frequency Flat + 0.8 dBm
—25.5 dBm
Response
Normal Blank Tape |
6 REC Level 1 kHz, —5.5 dBm REC/PB VRI —5.5+0.5 dBm
is Bias Filter No Signal input REC FLI Minimum output =e ee velunee
Maximum
a a ON
At this time, 0.1 dB
Ovu indicated decrease the Line
8
iii
1
kHz
input
ae
VR6
at
Line
output
Output
level
and
con-
—5.9 +0.2 dBm firm the Ovu indicator
is light off.
. 19 kHz te «OND?
9 MPX Filter : REC FL2 Minimum output DOLBY NR SW “ON
from oscillator
NOTES:
1.
Above
adjustments
except
for
Step
7
to
9
are
all
at
FWD
mode,
and
these
adjustments
at
REV
mode
are
not necessary, but the confirmation of each step at REV mode should be made.
2.
Above
adjustment
except
for
step
9,
adjustment
should
be
made
with
Dolby
N.R
at
OFF
position.
3. Use only the tapes recommended for each adjustment:
NORMAL Tape: MAXELL UD C-60
CrO, Tape: TDK SA C-60
METAL Tape: TDK MA C-60
4. Refer to Fig. 7-3, for above adjustments
SERVICE MANUAL HX-R44