DTX-MULTI 12
32
[Test method]
Press the [ENTER] button to execute the test.
Input sine wave to the Lch and Rch of the [AUX IN] terminal
with standard monaural plug connected to the [OUTPUT]
terminal and measure output waveform level and distortion of
the [OUTPUT L/MONO] and [OUTPUT R] terminals.
Operate the [AUX IN GAIN] volume to check that volume is
changed.
[Check item]
· Input sine wave of +0 dBu, 1 kHz ± 5Hz with distortion of
0.1 % or less to the [AUX IN] Lch. (Connect the Rch to the
GND)
· [OUTPUT L/MONO]: Frequency: 1 kHz ± 5 Hz
Waveform:
sine
wave
Level: +3.5 ± 2 dBu (load of 10 k
Ω
)
Distortion: 0.5 % or less
· [OUTPUT R]:
Level: -75.0 dBu or less
· [PHONES] Lch: Frequency: 1 kHz ± 5 Hz
Waveform:
sine
wave
Level: +6.5 ± 2 dBu (load of 33
Ω
)
Distortion: 0.5 % or less
· [PHONES] Rch:
Level: -55 dBu or less (load of 33
Ω
)
· Input sine wave of +0 dBu, 1 kHz ± 5 Hz with distortion of
0.1 % or less to the [AUX IN] Rch. (Connect the Lch to the
GND)
· [OUTPUT R]:
Frequency: 1 kHz ± 5 Hz
Waveform:
sine
wave
Level: +3.5 ±2 dBu (load of 10 k
Ω
)
Distortion: 0.5 % or less
· [OUTPUT L/MONO]:
Level: -75.0 dBu or less
· [PHONES] Rch: Frequency: 1 kHz ± 5 Hz
Waveform:
sine
wave
Level: +6.5 ± 2 dBu (load of 33
Ω
)
Level: -55 dBu or less (load of 33
Ω
)
[MIDI code output for judgment result]
Press the [EXIT] button to return to the “test number selection
screen”. Press the [+/INC] button to proceed to next test.
31. AUX IN (ph)
[Test Code]
A0 1F 00
[Initial indication]
31:AUX IN(ph)
Press [ENTER]
[Test contents]
Check that signal inputted from the [AUX IN] terminal is
outputted from the [OUTPUT] terminal as speci
fi
ed signal.
Check also that no signal is output from the [OUTPUT]
terminal.
[Test method]
Press the [ENTER] button to execute the test.
The [MASTER] volume and [PHONES] volume should be set
at MAX.
Input sine wave to Lch and Rch of [AUX IN], insert standard
stereo plug to the [PHONES] terminal and measure each output
level.
Insert standard PHONE plugs to the [OUTPUT L/MONO] and
[OUTPUT R] terminals and measure level at each output.
[Check item]
· Input sine wave of +0 dBu, 1 kHz ±5 Hz with distortion of 0.1
% or less to the [AUX IN] Lch, Rch.
· [PHONES] Lch, Rch: Level: +6.5 ± 2 dBu (load of 33
Ω
)
· [OUTPUT L/MONO], [OUTPUT R]: Level: -87 dBu or less
[Judgment indication]
None
[MIDI code output for judgment result]
None
[How to quit test]
Press the [EXIT] button to return to the “test number selection
screen”. Press the [+/INC] button to proceed to next test.
32. ROM (IC10)
[Test Code]
A0 20 00
[Initial indication]
32:ROM (IC10)
Press [ENTER]
[Test contents]
Executes ID Read test of the PROGRAM ROM (FLASH
ROM). Device ID is obtained from the ROM and is compared
with the speci
fi
ed ID.
[Test method]
Press the [ENTER] button to execute the test.
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TEL 13942296513 QQ 376315150 892498299
