Fdd Test; Midi In/Out Test; Wave Rom Test; Pcm Sound Output Test - Yamaha RM1x Service Manual

RM1x
Display Of Test Results
OK
18: FOOT SW
1
NG Not appearing
Test End
After displaying the test result the test will be finished.
After pressing the [F4] to exit the test, press the
[+1] switch to proceed with the next test and then
the [ENTER] switch to execute the next test.
Refer to " B PROCEEDING THROUGH THE
TESTS " if the " NG " occurs while testing.
C-19 FDD TEST
19:
(WRITE/READ)
Insert the floppy disk (2HD, formatted) which is
set to " protect off " position. Press the [ENTER]
to execute the write/read test by using the test
two pattern.
Confirm that " OK " is displayed.
Display Of Test Results
OK
19:FDD (WRITE/READ)
NG
19:
(WRITE/READ)
Error Code
RDERR : Read error
WRERR : Write error
NODSK : No disk (FD is not installed)
UNFORM : Unformat (FD is unformatted)
WRPRT : Write protect
Test End
After displaying the test result and the test will
befinished.
After pressing the [F4] to exit the test, press the
[+1] switch to proceed with the next test and
then the [ENTER] switch to execute the next test.
Refer to " B PROCEEDING THROUGH THE
TESTS " if the " NG " occurs while testing
C-20 MIDI IN/OUT TEST
20: MIDI (IN/OUT)
After connecting the MIDI IN to the MIDI OUT
via- a MIDI cable, execute the test.
The test result appears on the LCD.
30
OK
FDD
OK
FDD
.
Display Of Test Results
OK
20: MIDI (IN/OUT)
NG
20: MIDI (IN/OUT)
TIME OUT
20: MIDI (IN/OUT)
ERROR
(When the reception does not end
within the fixed time)
Test End
After displaying the test result the test will be finished.
Press the [+1] switch to proceed with the next test and
then the [ENTER] switch to execute the next test.
Refer to " B PROCEEDING THROUGH THE
TESTS " if the " NG " occurs while testing.
C-21 WAVE ROM TEST
21: WAVE ROM
Confirm that the read test of the " WAVE ROM "
and the display of OK appears.
Display Of Test Results
OK
21: WAVE ROM
NG
21: WAVE ROM
Test End
After displaying the test result the test will be finished.
After pressing the [F4] to exit the test, press the
[+1] switch to proceed with the next test and then
the [ENTER] switch to execute the next test.
C-22 PCM SOUND OUTPUT (OUTPUT L)
TEST
22: PCM SIN 1kHz L
The VOLUME control must be set at maximum.
Insert the appropriate phone plugs into each
output jack and check the OUTPUT (L, R),
PHONES (L, R) outputs.
If necessary, verify the frequency, output
waveform and output level of each output using
a frequancy countor, oscilloscope and AC
voltmeter (with JIS-C filter). Listed below are the
specifications and conditions of each output
during this test.
OK
NG
TIMEOUT
OK
NG