Yamaha S-80, Service Manual

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S80
33
T28. EXIT
When testing is executed, the following message will
appear on the LCD.
When [YES] is pressed, testing will end.
When [NO] is pressed, the entry screen for the AUTO
and MANUAL modes will be restored.
D. OTHERS
When the test mode is cancelled, the same sequence that
occurred when turning on the power will be executed.
Check that the on/off clicking noises of the main unit
power switch is as described below.
OUTPUT-L, R: Less than 500 mV
INDIV-1, 2:
Less than 500 mV
PHONES-L, R: Less than 500 mV
Also, with testing cancelled check the noise level when
the voice play mode is set according to the factory settings
and no note has been played to confirm that it satisfies
the following conditions.
Take measurements with the voltmeter (with JIS-C
filter) connected.
OUTPUT-L: Less than -82 dBm (10k ohm load)
OUTPUT-R: Less than -82 dBm (10k ohm load)
INDIV-1:
Less than -82 dBm (10k ohm load)
INDIV-2: Less than -82 dBm (10k ohm load)
PHONES-L: Less than -82 dBm (33k ohm load)
PHONES-R: Less than -82 dBm (33k ohm load)
E. Short-cut Functions
(1) Turn on the power while pressing [PRE1] and
[PRE2], and forced initialization will be executed.
(2) Turn on the power while pressing [INT] and
[EXT], the version will then appear and the
operating power will be restored about 5 seconds
later.
(3) Turn on the power while pressing [EXIT] and
[ENTER], and the system program will be loaded
from SMART MEDIA and the operating power
will be restored.
(4) Turn on the power while pressing [DEC] and
[INC], and the wave data will be loaded from
SMART MEDIA, and the operating power will be
restored.