Marantz 5010 - Page 21

19. Record-Playback Frequency Response Meas- STANDARDS
urement 1. NORMAL position:
250Hz-6.3kHz...... +2.5dB
SET
UP
40Hz-13kHz......
+2.5,
—4dB
1. Power voltage:- 50 or 60Hz AC voltage rated with DOLBY switch at OFF,
for the unit to be used in a market country. 2. CrO, position:
2. Input:- 1kHz, —60dB signal with —20dB as 250Hz-6.3kHz...... +2.5dB
OVU. 40Hz-14kHz...... +2.5, —4dB
3. Playback output level:- Same as the recorded with DOLBY switch at OFF.
signal level. 3. Fe-Cr position:
4. Load:- Measuring instrument input im- 250Hz- 6.3kHz...... +2.5dB
pedance. 40Hz-15kHz...... +2.5, —4dB
5.
Measuring
output
terminal:-
LINE
OUT.
with
DOLBY
switch
at
OFF.
6. Cassette tape used:- TDK AC-211, AC-511 4. NORMAL, CrO, and Fe-Cr positions:
and SONY CS-30. 250Hz-6.3kHz...... +4dB
40Hz-10kHz...... +4, —6dB
PROCEDURES with DOLBY switch at ON.
i
1. Record the 1kHz signal in the normal |
recording state. In turn, reduce the input |
level by 20dB with an attenuator. Then,
record the 1kHz, 40Hz, 10kHz, 13kHz,
14kHz and 15kHz signals.
2. Play the recorded 1kHz signal back in the i
normal playback state.
3. Let the 1kHz, —20dB-down signal level be
OdB as reference level. Read difference of
the 40Hz, 10kHz, 13kHz, 14kHz and 15kHz |
signal output levels from the 1kHz signal.
OdB reference level. |
4. Proceed for the NORMAL, CrO, and Fe-Cr
positions each in the same manner. |
5. Proceed both for the right and left channels
in the same manner. |
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Hl
}
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i
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Mode: record
1K, 40, 10K. 12.5KHz
at OSC
Blank Tape
cttenuator
Mode | Piayback Mic
Recoraed VTVM
Portion looKa [7]
PERS
Line Ovt