Waveforms - Pioneer DJM-400 Service Manual

5

3.16 WAVEFORMS

Note : The encircled numbers denote measuring point in the schematic diagram and pcb diagram.
Measuring conditions (Analog)
CH 1/2 Input selector
CH CD LINE
Input signal 1k/0db 1k/0db
TRIM MAX MAX
(display MAX) (display MAX)
EQ HI MID MID
EQ MID MID MID
EQ LO MID MID
CH FADER MAX MAX
A 1/3
MAIN ASSY
IC700 - pin 3 (SEG6)
1
V: 2 V/div. H: 1 msec/div.
GND
IC700 - pin 12 (TP58) (TXDC)
2
V: 2 V/div. H: 500 µsec/div.
GND
IC700 - pin 14 (TP57) (RXDC)
3
V: 2 V/div. H: 500 µsec/div.
GND
IC700 - pin 16 (TP56) (SCLKC)
4
V: 2 V/div. H: 200 nsec/div.
GND
IC700 - pin 18 (TP55) (REDSO)
5
V: 2 V/div. H: 10 µsec/div.
GND
5
6
Top panel : only a measurement line is inputted.
AUX L/R
Input signal 1k/0db
PHONO
TRIM MAX
1k/-40db
(display MAX)
MAX
EQ HI MID
(display MAX)
EQ LO MID
MID
MIC selector sw ON
MID
MID
MAX
IC700 - pin 19 (TP54) (RDSC)
6
V: 2 V/div. H: 10 µsec/div.
GND
IC700 - pin 20 (TP53) (RADC)
7
V: 2 V/div. H: 10 µsec/div.
GND
IC700 - pin 35 (VCC)
8
V: 2 V/div. H: 10 nsec/div.
GND
IC700 - pin 48 (MONO_ST_SW)
9
(STEREO setting)
V: 2 V/div. H: 10 µsec/div.
GND
IC700 - pin 63 (XRES)
10
V: 2 V/div. H: 10 nsec/div.
GND
6
7
FADER START
MIC 1/2
1k/-40db CH-1
MAX CH-2
(display MAX)
MID
Input signal
MID
HP LEVEL
ON
CH1
IC700 - pin 66 (EXTAL)
11
V: 2 V/div. H: 10 nsec/div.
IC700 - pin 73 (MD0)
12
V: 2 V/div. H: 10 nsec/div.
IC700 - pin 74 (MD1)
13
V: 2 V/div. H: 10 nsec/div.
IC700 - pin 75 (MD2)
14
V: 2 V/div. H: 10 nsec/div.
IC700 - pin 76 (AVCC)
15
V: 2 V/div. H: 10 nsec/div.
DJM-400
7
8
MAS VR MAX
(display MAX)
OFF
OFF
MONO/ST ST
HP
1k/-14db
C/FADER THRU
MAX
ON
IC700 - pin 78 (AD_CH1_FADER)
16
(position : MAX)
V: 2 V/div. H: 10 nsec/div.
GND
IC700 - pin 92 (VSS)
17
V: 2 V/div. H: 10 nsec/div.
GND
IC700 - pin 100 (GR0)
18
V: 2 V/div. H: 2 msec/div.
GND
GND
GND
8
A
B
GND
C
GND
D
GND
E
F
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