S80
30
T18. TO HOST
Connect pin No.3 to pin No.5, and connect pin No.6 to
No.8, and then execute testing.
Operate the HOST SELECT switch according to the
instruction on the LCD and check that “OK” appears
when [MIDI] is reached at the end.
When the HOST SELECT switch is set to the MIDI
position, the “SET HOST Sw [MAC]” message will
appear. Next set the HOST SELECT switch of the main
unit to MAC to begin testing.
DISPLAY OF RESULTS
OK
NG
(When unexpected data is received)
NG
(When reception is not completed within the specified time)
TEST END
The test ends after the result is displayed.
When the test result is “NG”, refer to “C. TEST
S E L E C T I O N W H E N A N E R R O R H A S B E E N
DETECTED”.
T19. 1kHz OUTPUT-L
Insert plugs into OUTPUT-L, OUTPUT-R, INDIV-1,
INDIV-2, PHONES (L), and PHONES (R), and then
connect the frequency counter, oscilloscope and AC
voltmeter (with a JIS-C filter).
Set the master volume to Max and check that the
following signals are output from OUTPUT-L, INDIV-
1 and 2, and PHONES (L).
OUTPUT-L: 1 kHz
±
1.5 Hz, sine wave, +6.0
±
2 dBm
(10k ohm load)
OUTPUT-R: -72 dBm or less (10 kohm load)
INDIV-1:
1 kHz
±
1.5 Hz, sine wave, +6.0
±
2 dBm (10
kohm load)
INDIV-2:
-72 dBm or less (10 kohm load)
PHONES (L): 1 kHz, sine wave, +5.0
±
2 dBm (33 ohm load)
PHONES (R): -64 dBm or less (33 ohm load)
While sound is being output, the following message
appears on the LCD.
DISPLAY OF RESULTS
TEST END
AUTO:
when the [INC] switch is pressed, the
sound output will stop and the next test
will be executed.
MANUAL:
when the [EXIT] switch is pressed, testing
will end, the initial display will be restored
and the next test number will be set.
T20. 1kHz OUTPUT-R
Insert plugs into OUTPUT-L, OUTPUT-R, PHONES (L),
and PHONES (R), and then connect the oscilloscope and
AC voltmeter (with a JIS-C filter).
Set the master volume to the Max position.
Check that signals are output at OUTPUT-L, OUTPUT-
R, PHONES (L), and PHONES (R) as described below.
At this time, signals are output at MEL for mLAN as
well.
OUTPUT-L: -72 dBm or less (10k ohm load)
OUTPUT-R: 1 KHZ
±
1.5 Hz, sine wave, +6.0
±
2 dBm
(10k ohm load)
INDIV-1:
-72 dBm or less (10k ohm load)
INDIV-2:
1 kHz
±
1.5 Hz, sine wave, +6.0
±
2 dBm (10k ohm load)
PHONES (L): -64 dBm or less (33 ohm load)
PHONES (R): 1 kHz, sine wave, +5.0
±
2 dBm (33 ohm load)
While sound is output, the following message appears
on the LCD.
DISPLAY OF RESULTS
TEST END
AUTO: when the [INC] switch is pressed, the sound
output will stop and the next test will be executed.
MANUAL: when the [EXIT] switch is pressed, testing
will end, the initial display will be restored
and the next test number will be set.
T21. A-D LEVEL, JACK
Set the A/D GAIN volume to the maximum level.
Input a 1 kHz sine wave of the following level through the
A/D input port according to the instructions on the LCD.
MIC: -40 dBm
±
0 dBm
LINE: -6 dBm
±
0 dBm
When a plug is connected to the jack, both “EXTRACT
PLUG” appears and the A/D level appear.
Summary of Contents for S-80
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