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NG
22 PB1 MIDI IN
23. PB1 MEL
23 PB1 MEL
tests
described
Perform the
1 to 3
sure th at th e prop er signal is being output from
OUTPUT (L, R).
(Details)
The signal input into A/D INPUT is output from the
CN5-MEL OUT of MU128 and a request for the
audible signal is made to the PB. The sound source
PB then outputs a 1 kHz sine wave from MEL OUT.
The effect PB then outp uts the input signal from
MEL OUT. The MU128 then outputs the sine wave
input into CN5-MEL IN from OUTPUT.
1. Testing the MU128
Make sure that the MEL IN/OUT of the CN5 is
functioning properly.
2. Testing the sound source PB
Make sure that the sound source section and the
MEL OUT are functioning properly.
3. Testing the effect PB (PLG100-VH)
Make sure that the effect section and the MEL
IN/OUT are functioning properly.
Insert the plugs into the OUTPUT (L, R) and
PHONES terminals and measure the frequency,
waveform and level of each signal output. Set the
VOLUME and A/D INPUT VOLUME at maximum.
Check items
When the sine wave data---1 kHz and -15dBm---are
input into A/D INPUT (L), make sure the following
specified values are obtained for OUTPUT (L).
OUTPUT (L):
1 kHz +/- 3 Hz, 4.0 dBm +/- 2 dBm (PLG100-VH),
1 kHz +/- 3 Hz, 3.2 dBm +/- 2 dBm (PLG100-VL),
1 kHz +/- 3 Hz, 2.0 dBm +/- 2 dBm (PLG100-VS),
1 kHz +/- 3 Hz, 0.8 dBm +/- 2 dBm (PLG100-XG)
Ending the test
Press the [ENTER] button. You will then go to the
next test.
When testing the MU128, use PLG100-VH.
24.
PB2 NAME
Note 2: For tests 24 to 27, connect the PB to the CN4 before
turning ON the equipment.
24 PB2 NAME
A request for the board name and version is sent from
the MU to the PB through the MU-PB
si gnal l ine. T he in fo rma tio n obt ai ne d f rom t he
PB is
then displayed on the LCD. Make sure that the
err
below and make
(PLG100-VL, SG, etc.)
communications
communications signal line for the CN 4 is functioning
properly and check the board name and version.
Displaying the test result
OK
24 PB2 NAME
PLG100-VL
VX.XX
(X.XX = Displaying the test result)
NG
24 PB2 NAME
(If no information is returned from the PB.)
25. PB2 RAM
25 PB2 RAM
Check the RAM of the PB connected to the CN 4 of
the DM sheet.
Displaying the test result
OK
25 PB2 RAM
NG
25 PB2 RAM
26. PB2 MIDI IN
26 PB2 MIDI IN
Check the MIDI IN of the PB connected to the CN 4 of
the DM sheet.
Use a MIDI cable and connect the MIDI IN A (Rear)
connector to the MIDI OUT connector.
the test.
Before starting the test, select MIDI under HOST
SELECT.
Displaying the test result
OK
26 PB2 MIDI IN
NG
26 PB2 MIDI IN
27. PB2 MEL
27 PB2 MEL
Perform the tests 1 to 3 described below and make
sure that the proper signal is being output from
OUTPUT (L, R).
err
ok
err
Then conduct
ok
err
MU128
23
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