(All schematic diagrams may be modified at any time with
the development of new technology)
Note :
S701
Reset switch
S780
Open switch
S900
CD switch
S901
Tape switch
S902
Tuner/Band switch
S903
FF switch
S904
Stop switch
S905
REW switch
S906
Album_FF switch
S907
Album_REW switch
S908
AC In switch
S909
Open/Close switch
S911
Surround switch
S912
Sound switch
S913
Rec switch
S914
Track_Up switch
S915
Track_Down switch
S971
Mode switch
S972
Half switch
S973
CR02 switch
S975
Recinh_F switch
S1000
Tape Eject switch
VR900
Volume VR
·
The voltage value and waveforms are the reference voltage
of this unit measured by DC electronic voltmeter (high
impedance) and oscilloscope on the basis of chassis.
Accordingly, there may arise some error in voltage values
and waveforms depending upon the internal impedance of
the tester or the measuring unit.
·
Importance safety notice :
Components
identified
by
mark
have
special
characteristics important for safety. Furthermore, special
parts which have purposes of fire-retardant (resistors), high-
quality sound (capacitors), low-noise (resistors), etc. are
used. When replacing any of components, be sure to use
only manufacturer´s specified parts shown in the parts list.
Caution !
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
·
Cover the parts boxes made of plastics with aluminium foil.
·
Put a conductive mat on the work table.
·
Ground the soldering iron.
·
Do not touch the pins of IC, LSI or VLSI with fingers directly.
17 Notes of Schematic Diagram
50
SA-PM21PC
Summary of Contents for SA-PM21PC
Page 5: ...1 1 3 Caution for fuse replacement 5 SA PM21PC ...
Page 10: ...8 Operation Procedures 10 SA PM21PC ...
Page 11: ...9 Information on CD MP3 11 SA PM21PC ...
Page 20: ...20 SA PM21PC ...
Page 21: ...21 SA PM21PC ...
Page 26: ...26 SA PM21PC ...
Page 28: ...28 SA PM21PC ...
Page 38: ...Fig 7 38 SA PM21PC ...
Page 76: ...23 Troubleshooting Flowchart CD Section Circuit 76 SA PM21PC ...
Page 77: ...77 SA PM21PC ...
Page 79: ...24 1 Deck Mechanism 24 1 1 Deck Mechanism Parts Location RAA4402 S 79 SA PM21PC ...
Page 81: ...24 2 CD Loading Mechanism 24 2 1 CD Loading Mechanism Parts Location 81 SA PM21PC ...
Page 83: ...24 3 Cabinet 24 3 1 Cabinet Parts Location 83 SA PM21PC ...
Page 84: ...84 SA PM21PC ...