Pioneer DDJ-ERGO-v, Руководство по обслуживанию

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[7] Basic Operation Check of the MAIN UCOM
1 Failure in LED
lighting CDJ1 Assy
CDJ2 Assy In each mode where the abnormal LED
should be lit, check the GRID signals
(GRID_0 to GRID_7) relating to the
abnormal LED between the MAI
N UCOM
and the transistor for driving the
corresponding LED.
If the waveform is abnormal, connection of the
GRID signal line may be loose or the resistor,
capacitor, or transistor may be defective. If
nothing is wrong with these parts, the
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
JKLM
4 Failure in key
operation CDJ1 Assy
CDJ2 Assy W hen pressing the abnormal key, check
the GRID signal (GRID_0 to GRID_7)
corresponding to the abnormal key
between the MAI
N UCOM and the switch
for the corresponding key (S****).
If the waveform is abnormal, connection of the
KEY-detection signal line may be loose or the
resistor, capacitor, or transistor may be defective.
If nothing is wrong with these parts, the
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
JKLM
7 Failure in V R
control
CDJ1 Assy
CDJ2 Assy Check the waveform of each input signal
to the
V OL S W and MAI N UCOM when
you operate the abnormal operating
element.
If the waveform is abnormal, connection of that
signal line or
V OL-S W -control signal (S W _AD_A/B)
line may be loose or the resistor or capacitor may
be defective. If nothing is wrong with them, the
V OL S W (IC1201, IC1202, IC2201) or MAI N
UCOM (IC1002) may be defective.
10.13 W A V EFORMS
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8 Failure in operation
of the slider, fader,
rotary switch, or
Jog dial (touching
and rotating) CDJ1 Assy
CDJ2 Assy Check the waveform of each input signal
to the MAI
N UCOM when you operate the
abnormal operating element.
If the waveform is abnormal, connection of the
corresponding signal line may be loose or the
resistor, capacitor, or transistor may be defective.
If nothing is wrong with these parts, the
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
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9 After lighting of the
LEDs at startup is
finished, key
operation is
disabled or LED
lighting is not
interlocked with the
application. CDJ1 Assy
IFP
W Assy
Check the communication waveform
between the USB Controller (IC102) and
MAI
N UCOM (IC1002).
USB_XRST
USB_REQ
USB_BUSY
USB_ERR
USB_CTRL1
USB_CTRL2
EEP_SCL
EEP_SDA
N ormally, the USB Controller (IC102) and
MAI N UCOM (IC1002) communicate periodically.
Check that each communication-signal line is all
right, referring to “10.13
W A V EFORMS.” If any
waveform is abnormal, connection of that signal
line may be loose or the resistor or the capacitor
may be defective. If nothing is wrong with these
parts, the USB Controller (IC102) or
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
467ghijk
10 Failure in operation
of the volume for
MASTER
V OL or
HP V OL, or abnormal
ooutput level.
CDJ1 Assy
IFP
W Assy
Check the waveforms of the control
signals of DAC for the MASTER OUT
(IC501) and for HP (IC502). Communication between the MAI N UCOM and
DAC is performed only upon startup or while the
MASTER_
V OL or HP_ V OL is operated.
If the communication control waveform
(DAC_CS, DAC_CS
N , DAC_CCLK, DAC_CDTI)
is abnormal, connection of that signal line may
be loose or the resistor or capacitor may be
defective. If nothing is wrong with these parts,
the DAC for MASTER OUT (IC501) or for HP
(IC502) or the MAI
N UCOM (IC1002) may be
defective.
10.13 W A V EFORMS
DEFG
5 CDJ1 Assy
CDJ2 Assy W hen pressing the abnormal key, check
the KEY detection signal between the
abnormal key and the transistor for key
detection.
If the waveform is abnormal, connection of the
KEY-detection signal line may be loose or the
switch, transistor, or diode may be defective. 10.13 W A V EFORMS
NOP
6 CDJ1 Assy
CDJ2 Assy W hen pressing the abnormal key, check
the KEY-detection signal (KEY_I N _0 to
KEY_I N _7) corresponding to the abnormal
key between the transistor for key detection
and the MAI
N UCOM.
If the waveform is abnormal, connection of the
KEY-detection signal line may be loose or the
resistor, capacitor, or transistor may be defective.
If nothing is wrong with these parts, the
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
NOP
2 CDJ1 Assy
CDJ2 Assy In each mode where the abnormal LED
should be lit, check the LED-driving signal
between the transistor for driving the
corresponding LED and the abnormal LED. If the waveform is abnormal, connection of the
LED-driving signal line may be loose or the
resistor, transistor, or diode may be defective. 10.13 W A V EFORMS
$%&'
3 CDJ1 Assy
CDJ2 Assy In each mode where the abnormal LED
should be lit, check the LED-control signal
(LED_0 to LED_14) corresponding to the
abnormal LED between the transistor for
driving the corresponding LED and the
MAI
N UCOM.
If the waveform is abnormal, connection of the
LED-control signal line may be loose or the
resistor, capacitor, or transistor may be defective.
If nothing is wrong with these parts, the
MAI
N UCOM (IC1002) may be defective.
10.13 W A V EFORMS
$%&'
Note: First, check if the voltage at each section is OK.
Operation checking of all operating elements and LEDs can be performed in Service mode. W ith regard to operation
checking of LED lighting, besides lighting of each LED, check that all LEDs can be simultaneously lit or unlit.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference