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17 Notes of Schematic Diagram
(All schematic diagrams may be modified at any time with
the development of new technology)
Note :
S1
Stock switch
S2
Play switch
S3
Bottom switch
S4
Open switch
S5
Change switch
S601
CD 1 switch
S602
CD 2 switch
S603
CD 3 switch
S604
CD 4 switch
S605
CD 5 switch
S606
CD switch
S607
Tape switch
S608
Tuner/Band switch
S609
Enter switch
S612
Play List switch
S613
Stop/Demo switch
S614
Power switch
S615
Rec switch
S616
Aux switch
S617
CD Check switch
S619
Return switch
S620
CD Change switch
S621
Open/Close switch
S622
Re-Master switch
S623
SSEQ switch
S701
Reset switch
S971
Mode switch
S972
Half switch
S973
CR02 switch
S974
Recinh_R switch
S975
Recinh_F switch
S1901
Tape Eject switch
VR600
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 waveformsdepending upon the internal impedance of
the tester or the measuring unit.
No mark
: Playback
<< >>
: Rec
(( ))
: CD
< >
: FM
( )
: AM
· Importance safety notice :
Components
identified
characteristics important for safety. Furthermore, special
parts which have purposes of fire-retardant (resistors), high-
quality sound (capacitors), low-noise (resistors), etc. are
used. Whenreplacing 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.
by
mark
have
special
· 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.
69
SA-PM29E / SA-PM29EB / SA-PM29EG
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