39
10 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.
10.1. MAIN P.C.B. (1/3)
REF NO.
MODE
1
2
3
4
PLAY
0
0
2.8
1.2
STANDBY
0
0
2.8
1.2
REC
0
0
2.8
1.2
REF NO.
MODE
1
2
3
4
PLAY
0
0
2.8
2.8
STANDBY
0
0
2.8
2.8
REC
0
0
2.8
2.8
REF NO.
MODE
18
20
PLAY
2.8
1.4
STANDBY
2.8
1.4
REC
2.8
1.4
REF NO.
MODE
4
5
PLAY
2.7
2.7
STANDBY
2.7
2.7
REC
2.8
2.8
REF NO.
MODE
1
2
3
4
5
PLAY
0
0
0
0
0
STANDBY
0
0
0
0
0
REC
1.2
0
1.3
1.3
2.5
REF NO.
MODE
1
2
3
4
5
PLAY
0
0
0
0
0
STANDBY
0
0
0
0
0
REC
1.3
0
1.3
1.3
2.4
REF NO.
MODE
1
2
3
4
5
6
7
8
PLAY
0
0
0
0
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
REC
1.3
1.3
1.2
0
1.2
1.3
1.3
2.4
REF NO.
MODE
1
2
3
4
5
6
7
8
PLAY
0
0
0
0
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
REC
1.3
1.3
1.2
0
1.2
1.2
1.2
2.5
REF NO.
MODE
1
2
3
4
PLAY
0
0
0
2.8
STANDBY
0
0
0
2.8
REC
2.5
0
1.4
2.8
RR-US570PP/E, RR-US590P MAIN P.C.B.
IC405
IC102
IC103
IC302
IC401
IC301
IC402
IC403
IC404
Summary of Contents for RR-US570PP
Page 8: ...8 5 Location of Controls and Components 5 1 Components of IC Recorder ...
Page 9: ...9 5 2 Basic Operation ...
Page 14: ...14 7 Troubleshooting Guide ...
Page 15: ...15 ...
Page 16: ...16 ...
Page 18: ...18 8 1 Main Parts Location Diagram ...
Page 44: ...44 11 Illustration of IC s Transistors and Diodes C1AB00003086 120P RFKWNUS570 S RFKWNUS590 K ...