Roland DR-880 Dokumentacja Pobierz pdf (Strona 27)

DR-880

12-2. Check the residual noise of

“MASTER OUT” L (MONO)/R.

Listen to the noise, and verify the following.

1. Noise level: -73 dBu or less (both L and R)

2. No abnormal sound is present in the output.

3. No abnormal sound is produced when you apply physical shock to the

unit.

12-3. Check the residual noise of

“MASTER OUT” (PIN).

Listen to the noise, and verify the following.

1. Noise level: -82 dBu or less (both L and R)

2. No abnormal sound is present in the output.

3. No abnormal sound is produced when you apply physical shock to the

unit.

12-4. Check the residual noise of

“INDIVIDUAL.”

Listen to the noise, and verify the following.

1. Noise level: -77.5 dBu or less (both L and R)

2. No abnormal sound is present in the output.

3. No abnormal sound is produced when you apply physical shock to the

unit.

12-5. Check the residual noise of

“PHONES.”

Listen to the noise, and verify the following.

1. Noise level: -72 dBu or less (both L and R)

2. No abnormal sound is present in the output.

3. No abnormal sound is produced when you apply physical shock to the

unit.

12-6. Check the residual noise of

“MASTER OUT” L (MONO)/R at the Hi-

Gain setting. (INPUT residual noise

check)

Press [BANK] to select “Hi-Gain.”

fig.inputadcheck4.eps

Listen to the noise, and verify the following.

1. Noise level: -70 dBu or less (both L and R)

2. No abnormal sound is present in the output.

3. No abnormal sound is produced when you apply physical shock to the

unit.

13. Turn off the power.

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Roland DR-880 Dokumentacja Strona 27