Akai GXC-570D

|
Par eraeeen ana
Step
Adjustment Item
Result.
Remarks
Playback Level
Adjustment
Recording Level
Adjustment
(low noise tape)
Recording Level
Chrome Blank Tape
0+0.5 dBm
(0.775V)
Set Monitor
Switch to “TAPE”
Test Tape Adjustment
Supply
Signal
Mode
Point
333
Hz0
VU
VRI
S00B
Test Tape PLAY (CA-5205)
Low
Noise
VRI
10kB
Blank
Tape
(left
channel)
1,000Hz0
vu
|
REC
|
VRib
10kB
recordin
(right
channel)
:
(CI-5028)
0+0.5 dBm
(0.775V)
Set Monitor Switch to
“TAPE”
Refer to Note -1)
Set Monitor Switch to
3 Adjustment 1,000 Hz 0 VU REC “TAPE”
(chrome tape) recording Refer to Note -2)
Frequenc ae VRE 20 EB
cate ie P (left channel) 1,000 Hz
4 ReSponse 1,000 Hz REC | VR2 SOkB 10°000 Hz Set Tape selector to
Adjustment 10,000 Hz ? : “LOW NOISE”
: (right channel)| Flat response
(low noise tape) —20 VU
: : (CI-5030)
recording
Frequency Chrome Blank Tape
5 Response ers REC VR3 100B ae Set Tape selector to
Adjustment : (CI-5030) : “CHROME”
—20 VU Flat response
(chrome tape) ;
recording
Low Noise
Recording Level Blank Tape VR1, VR1b
6 Confirmation 1,000 Hz REC 10 kB 0+0.5 dBm | Refer to Note -3)
(low noise tape) 0 VU (CI-5028)
recording
VU Meter VR2, VR2b Set Meter selector to
7 Sensitivity 1,000 Hz STOP 5 kB 0VU “VU METER”
Adjustment (CI-5028) Refer to Note 4)
Peak Meter VR3, VR3b Set Meter selector to
8 Indication 1,000 Hz STOP 10 kB -8 VU “PEAK METER”
Adjustment (CI-5028) Refer to Note 4)
Chart 1
NOTES: 1. Recording level adjustment volumes (REC CAL) VR5 and VR6 are not located on the Pre-Amp P.C Board’
22
as in the case of an ordinary tape deck, but are installed on the front panel. When adjusting VR1 and
VRIb, set VR5 and VR6 to center position.
carried out with as little error as possible.
. Use the following cassette measuring tape:
Low Noise Tape:
Chrome Tape:
Fuji C-60LN
. After low noise tape adjustments, confirm recording level only.
. Following Step 4 frequency response adjustment, because the recording level may be slightly changed,
confirnr level and if necessary, carry out Step 2 Adjustment again.
. Set Monitor Switch to “SOURCE” and supply a 1,000 Hz signal to line input to obtain a 0 dBm line
output level.
. Because each of these adjustments are vital to perfect Dolby N.R. circuit operation, be sure that they are
BASF #SM Chrome C-60