Notes Of Schematic Diagram - Panasonic SA-PM91DEE Service Manual

SA-PM91DEE

20 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 Bass/Treble switch
S602 REW switch
S603 DVD/CD switch
S604 FWD switch
S605 Tape switch
S606 Stop switch
S607 Disc 5 switch
S608 Disc_Change switch
S609 Open/Close switch
S610 H. Bass switch
S611 Tuner/Aux switch
S612 Disc_Check switch
S613 ADV_Surround switch
S613 Down switch
S614 Up switch
S616 Power switch
S617 Rec switch
S618 Disc 1 switch
S619 Disc 2 switch
S620 Disc 3 switch
S621 Disc 4 switch
S971 Mode switch
S972 Half switch
S973 CR02 switch
S974 Recinh_r switch
S975 Recinh_f switch
S1901 Tape Eject switch
VR601 Volume
· 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
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.
by mark have special
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