18
Sep. 2012
INTEGRA-7
This verifies the signals output from the
OUTPUT B L
and
R
connectors.
1.
Press
PART
.
The message
Audio Routing : 3/4
is displayed.
2.
Connect the oscilloscope to the
OUTPUT B L
and
R
connectors.
3.
Verify that signals like the following are output.
L: 1-kHz sine wave at 13.0 Vpp ±10%
R: 2-kHz sine wave at 13.0 Vpp ±10%
4.
Verify that the waveforms are muted (
0 Vpp
) while
PART VIEW
is
depressed.
This verifies the signals output from the
OUTPUT C L
and
R
connectors.
1.
Press
PART
.
The message
Audio Routing : 5/6
is displayed.
2.
Connect the oscilloscope to the
OUTPUT C L
and
R
connectors.
3.
Verify that signals like the following are output.
L: 1-kHz sine wave at 13.0 Vpp ±10%
R: 2-kHz sine wave at 13.0 Vpp ±10%
4.
Verify that the waveforms are muted (
0 Vpp
) while
PART VIEW
is
depressed.
This verifies the signals output from the
OUTPUT D L
and
R
connectors.
1.
Press
PART
.
The message
Audio Routing : 7/8
is displayed.
2.
Connect the oscilloscope to the
OUTPUT D L
and
R
connectors.
3.
Verify that signals like the following are output.
L: 1-kHz sine wave at 13.0 Vpp ±10%
R: 2-kHz sine wave at 13.0 Vpp ±10%
4.
Verify that the waveforms are muted (
0 Vpp
) while
PART VIEW
is
depressed.
This verifies the signals output from the
DIGITAL AUDIO OUT
connector.
1.
Press
PART
.
The message
Audio Routing : D.OUT
is displayed.
2.
Connect the speakers to the
DIGITAL AUDIO OUT
connector.
A 1-kHz sine wave is output from left and a 2-kHz sine wave is output
from right.
3.
Verify that no audible noise, sound drop-out, or clipping (distortion) is
present.
4.
Verify that audio is muted while
PART VIEW
is depressed.
This inputs signals via the
INPUT L
and
R
connectors and verifies the
signals output from the
OUTPUT A L
and
R
(TRS) connectors.
1.
Press
PART
.
The message
Audio Routing : Direct
is displayed.
2.
Connect the signal generator to the
INPUT L
and
R
connectors on the
front panel and input signals like the following.
L: 1-kHz sine wave at 2.0 Vpp
R: 2-kHz sine wave at 2.0 Vpp
3.
Verify that the message
INPUT L/R Sense : ON / ON
is displayed. Also
verify that the
PEAK
LED (red) is lighted.
4.
Connect the oscilloscope to the
OUTPUT L/MONO
and
R
connectors
(each TSR).
5.
Verify that signals like the following are output.
L (HOT):
1-kHz sine wave at 8.4 Vpp ±20%
L (COLD): 1-kHz sine wave at 8.4 Vpp ±20%
R (HOT):
2-kHz sine wave at 8.4 Vpp ±20%
R (COLD): 2-kHz sine wave at 8.4 Vpp ±20%
* If the oscilloscope is connected only to L, connect a dummy plug to R.
6.
Disconnect the signal generator, connect it to the
INPUT L
and
R
connectors on the rear panel, and input signals like the following.
L: 1-kHz sine wave at 1.3 Vpp
R: 2-kHz sine wave at 1.3 Vpp
7.
Verify that the message
INPUT L/R Sense : ON / ON
is displayed. Also
verify that the
PEAK
LED (red) is dark.
8.
Verify that signals like the following are output from the
OUTPUT L/
MONO
and
R
connectors (each TSR).
L (HOT):
1-kHz sine wave at 5.5 Vpp ±20%
L (COLD): 1-kHz sine wave at 5.5 Vpp ±20%
R (HOT):
2-kHz sine wave at 5.5 Vpp ±20%
R (COLD): 2-kHz sine wave at 5.5 Vpp ±20%
* If the oscilloscope is connected only to L, connect a dummy plug to R.
9.
If you are continuing with verification of audio input and output
(sampling rate: 96 kHz), temporarily disconnect all audio cables.
Verification of Audio Input and Output
(Sampling Rate: 96 kHz)
This inputs signals via the
INPUT L
and
R
connectors and verifies the
signals output from the
OUTPUT A L
and
R
(TRS) connectors.
1.
Press
TONE FINDER
twice.
The message
Sampling Rate : 96kHz
is displayed on the screen.
2.
Press
PART
.
The message
Audio Routing : Direct
is displayed.
3.
Connect the signal generator to the
INPUT L
and
R
connectors on the
front panel and input signals like the following.
L: 1-kHz sine wave at 2.0 Vpp
R: 2-kHz sine wave at 2.0 Vpp
4.
Verify that the message
INPUT L/R Sense : ON / ON
is displayed. Also
verify that the
PEAK
LED (red) is lighted.
5.
Connect the oscilloscope to the
OUTPUT L/MONO
and
R
connectors
(each TSR).
6.
Verify that signals like the following are output.
L (HOT):
1-kHz sine wave at 8.4 Vpp ±20%
L (COLD): 1-kHz sine wave at 8.4 Vpp ±20%
R (HOT):
2-kHz sine wave at 8.4 Vpp ±20%
R (COLD): 2-kHz sine wave at 8.4 Vpp ±20%
* If the oscilloscope is connected only to L, connect a dummy plug to R.
Verification of USB
1.
Press
MOTIONAL SURROUND
.
2.
Verify that the message
USB Memory Test : OK
is displayed.
* No servicing is required for
USB OverCURRENT
.
Verification of MIDI IN/OUT
1.
Using the MIDI cable, connect the
MIDI IN
and
MIDI OUT
jacks.
2.
Press
EFFECTS
.
3.
Verify that the message
MIDI Loop Test : OK
is displayed.
Verification of MIDI Thru
1.
Connect the MIDI keyboard to the
MIDI IN
connector.
2.
Connect the MIDI sound module to the
MIDI THRU
connector.
3.
Play the MIDI keyboard and verify that the MIDI sound module
produces sound.
4.
Detach the MIDI keyboard and MIDI sound module.
5.
Hold down
SHIFT
and press
CURSOR
to advance to the next test
item.
