Waveforms - Pioneer DJM-800 Service Manual

1

3.30 WAVEFORMS

Measuring Conditions (Analog)
Measure CH IN CH
A
PHONO CH1
LINE CH1
CD CH1
RETURN CH1SELECT
SEND CH1SELECT
BOOTH CH1
B
REC CH1
MIC 1,2 MIC 1,2
HP CH1
Set as follows except for designation;
CH1 FADER: MAX
C.F ASSIGN: Nothing
CH FADER CURVE: Center.
A
INPUT ASSY
C
JA401-pin 5 (CD L)
1
V: 0.2V/div. H: 500µsec/div.
RY401-pin 9
2
V: 0.2V/div. H: 500µsec/div.
D
CN401-pin 5 (L_OUT)
3
V: 0.2V/div. H: 500µsec/div.
E
IC403-pin 7
4
V: 0.2V/div. H: 500µsec/div.
F
78
1
2
IN LEVEL(TRIM MAX)
-46dBv
-6dBv
-6dBv
-6dBv
-6dBv(CH1)
-6dBv(CH1)
-6dBv(CH1)
-44.8dBv
-6dBv
NOTE: The following waveforms were measured at the point of the corresponding
balloon number in the schematic diagram and PCB diagram.
R440 and R450 (AINL-)
5
V: 1.00V/div. H: 500µsec/div.
GND
R442 and R451 (AINL+)
6
V: 1.00V/div. H: 500µsec/div.
GND
IC408 - pin 2 (SDO1)
7
V: 1V/div. H: 200nsec/div.
GND
JA401 - pin 2 (LINE L)
8
V: 0.5V/div. H: 500µsec/div.
GND
2
3
IN FREQ RL
1KHz
1KHz
1KHz
1KHz
1KHz
1KHz 600ohm
1KHz 10Kohm
1KHz
1KHz 32ohm
RY401 - pin7
9
V: 0.2V/div. H: 500µsec/div.
GND
JA501 - pin2 (PHONO L)
10
V: 50mV/div. H: 500µsec/div.
GND
Q505 -Gate
11
V: 50mV/div. H: 500µsec/div.
GND
RY501 - pin7
12
V: 0.2V/div. H: 500µsec/div.
GND
DJM-800
3
4
SEND LEVEL MAX
SEND LEVEL MAX
BOOTH LEVEL MAX,EQ FLAT
HP LEVEL 4
CN501 - pin5 (L_OUT)
13
V: 0.2V/div. H: 500µsec/div.
GND
IC503 - pin7
14
V: 0.2V/div. H: 500µsec/div.
GND
R540 and R550 (AINL-)
15
V: 1.0V/div. H: 500µsec/div.
GND
R542 and R551 (AINL+)
16
V: 1.0V/div. H: 500µsec/div.
GND
4
GND
GND
GND
GND