24
9 Voltage Measurement & Waveform Chart
Note:
• Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with
the chassis taken as standard.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
9.1.
D-AMP P.C.B.
9.2.
Waveform Chart
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
-15.0
0
0
0
16.0
STANDBY
0
0
0
-15.1
0
0
0
16.0
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
-14.9
0
0
-0.3
16.0
STANDBY
0
0
0
-15.1
0
0
-0.3
16.0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
-19.5
0
0
24.3
0
-24.8 -16.3 24.9
8.9
0
-25.0 -15.0 -25.0 -0.2
8.8
24.9 -24.8 -24.8
0
24.6
STANDBY
-19.5
0
0
24.6
0
-24.9 -16.4 24.9
8.9
0
-25.1 -15.0 -25.1
0
8.9
24.9 -24.9 -24.9
0
24.6
REF NO.
MODE
21
22
23
CD PLAY
0
0
4.7
STANDBY
0
0
2.3
REF NO.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CD PLAY
24.3 24.3 23.6
5.0
4.8
4.1
0
0
3.1
0
4.6
0
0
3.5
0
STANDBY
24.2 24.2 23.6
4.4
4.6
3.9
0
0
3.1
0
0
3.1
0
2.9
0
REF NO.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CD PLAY
0
3.7
0
0
0
3.3
24.2 24.2
0
-25.0 -25.0 -24.4
16.0 24.0 16.0
STANDBY
0
3.0
0
0
0
3.3
24.2 24.2
0
-25.0 -25.1 -24.5
16.0 23.9 16.6
REF NO.
MODE
E
C
B
E
C
B
CD PLAY
0
-15.7 -0.6
-15.1 -24.7 -15.7
STANDBY
0
-15.7 -0.6
-15.1 -24.8 -15.7
Q2010
Q2011
SB-WA500PP D-AMP P.C.B.
Q1007
Q1008
Q1009
Q1010
Q1011
Q2002
Q1003
Q1004
Q1005
Q1006
IC3001
IC3002
IC5200
IC5200
WF No. IC5200-10,14 (PLAY)
68Vp-p(1usec/div)
WF No. IC5200-21 (PLAY)
0.72Vp-p(200usec/div)
WF No. IC5200-2 (PLAY)
0.72Vp-p(200usec/div)