Akai GX-230D - Page 18

—
nS
SASS
3.
RECORDING,
PLAYBACK
AMPLIFIER
ADJUSTMENT
vRI VR3 9 -VR3b- VR R2 VR2b
50KB 2KB = 2KB_ Ss SOKB 20KB ae
“™ i NX >
@ Q@@® @ @
Test Tape
Adjustment Item Supply Signal
Playback Level
‘Adjustment
700 Hz, 7-1/2 ips.
“O” VU test tape
VU Meter Sensitivity
Adjustment
700 Hz, 7-1/2 ips.
“O” VU test tape
Scotch #211 tape,
1,000 Hz “O” VU
recording
Recording Level
Adjustment
Adjustment
Point
Result
0 +1.0 dB
(0.775V)
VR1 50 kB
VR3 2 kB “O” VU
0+1.5 dB
(0.775V)
VR2 20 kB
Remarks
within 0 +1.5 dB at
reverse playback
Monitor Switch at
SOURCE
Scotch #211 tape,
Frequency
Response
1,000
Hz
to
Re-adjust
recording
level
Adjustment
1,000
Hz,
10,000
Hz
C22
20P
16,000
He
fiat!
following
bias
adiustinent
—20
dBm
recording
Bias
Leak
Less.than
With
Monitor
Switch
at
TAPE
Adjustment
—30
VU
and
SOURCE
Positions.
NOTES:
1. Tape Speed at 7-1/2 ips. (19 cm/sec.)
2. Tape Selector at LOW NOISE.
3. Output volume maximum.
4. New test tape should be used.
5.
The
letter
b
following
an
adjustment
parts
number
indicates “right channel”.
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