Yamaha A5000 Editor, Руководство по обслуживанию, Страница: 24 / 61

A5000/A4000
24
While sounding, the LCD shows as belows.
RESULT OF THE TEST
No display
END OF THE TEST
After displaying the [ENC5] STOP, the test will be finished.
14 1 kHz ASSIGNABLE OUT-R
Insert the appropriate phone plugs into the STEREO OUT-L, R,
ASSIGNABLE OUT-L, R terminals. Check the output wave form
and the output level of each output by using an oscilloscope, an AC
voltmeter (with JIS-C filter) and a distorition factor meter.The
MASTER VOLUME control must be set at maximum for these
checks.
ASSIGNABLE OUT-L: less than -70 dBm (10 k ohm load)
ASSIGNABLE OUT-R: 1 kHz +/- 1 Hz, sine wave, less than 2.5%
distortion
-1 +/- 3 dBm (10 k ohm load)
While sounding, the LCD shows as below.
RESULT OF THE TEST
No display
END OF THE TEST
After pushing the [ENC5] STOP, the test will be finished.
15 REC IN (MIC) / SPF
Insert the appropriate phone plugs into the STEREO OUT-L, R
terminals. Check the output wave form and the output level of each
output by using an oscilloscope, an AC voltmeter (with JIS-C filter)
and a distortion factor meter. The REC GAIN and the MASTER
VOLUME control must be set at maximum for these checks.
Input sine wave signal : -50 dBm, 1 kHz +/- 1 Hz, less than 0.005%
distortion
impedance 600 ohm
When inserting in the REC IN-L
STEREO OUT-L: 1 kHz +/- 1.5 Hz, sine wave, less than 3.0% distortion
-1 +/- 4 dBm (10 k ohm load)
STEREO OUT-R: less than -55 dBm
RESULT OF THE TEST
OK :
NG :
END OF THE TEST
After pushing the [ENC5] STOP, the test will be finished.
12 1 kHz STEREO OUT-R
Insert the appropriate phone plugs into the STEREO OUT-L, R,
ASSIGNABLE OUT-L, R, PHONES terminals. Check the output
by using an oscilloscope, an AC voltmeter (with JIS-C filter) and a
distortion factor meter. The REC GAIN and the MASTER VOL-
UME control must be set at maxium for these checks.
STEREO OUT-L: less than -75 dBm (10 k ohm load)
STEREO OUT-R: 1 kHz +/- 1 Hz, sine wave, less than 2.0% distortion
-1 +/- 3 dBm (10 k ohm load)
PHONES (L): less than -60 dBm (33 ohm load)
PHONES (R): sine wave, less than 3% distortion
+7 +/- 3 dBm (33 ohm load)
While sounding, the LCD shows as belows.
RESULT OF THE TEST
OK :
NG :
END OF THE TEST
After pushing the [ENC5] STOP, the test will be finished.
13 1 kHz ASSIGNABLE OUT-L
Insert the appropriate phone plugs into the STEREO OUT-L, R,
ASSIGNABLE OUT-L, R terminals. Check the output wave form
and the output level of each output by using an oscilloscope, an AC
voltmeter (with JIS-C filter) and a distortion factor meter. The
MASTER VOLUME control must be set at maximum for these
checks.
ASSIGNABLE OUT-L: 1 kHz +/- 1 Hz, sine wave, less than 2.5%
distortion
-1 +/- 3 dBm (10 k ohm load)
ASSIGNABLE OUT-R: less than -70 dBm (10 k ohm load)
OK AUTO MANUAL
N G S W P a c c e s s e r r o r AUTO MANUAL
O u t p u t o n
OK AUTO MANUAL
N G S W P a c c e s s e r r o r AUTO MANUAL
O u t p u t o n
O u t p u t o n
1 2 : S T E R E O O U T - R
AUTO MANUAL
1 3 : A S S I G N A B L E O U T - L
AUTO MANUAL
1 4 : A S S I G N A B L E O U T - R
AUTO MANUAL
1 5 : R E C I N ( M I C ) / S P F
AUTO MANUAL