Notes Of Schematic Diagram - Panasonic SA-HT830VP Service Manual

22 Notes of Schematic Diagram

(All schematic diagrams may be modified at any time with the
development of the new technology)
Note:
S1 : Stock switch
S2 : Play switch
S3 : Botton switch
S4 : Open switch
S5 : Change switch
S1531 : Safety Tab switch
S1532 : Mode switch
S7001 : Disc 5 switch
S7002 : Disc Change switch
S7003 : Disc 4 switch
S7004 : H.Bass switch
S7005 : Disc 3 switch
S7006 : Play switch
S7007 : Disc 2 switch
S7008 : Stop switch
S7009 : Disc 1 switch
S7010 : Disc Check switch
S7011 : Input Selector switch
S7012 : Open/Close switch
S7013 : Power switch
S7016 : Play switch
S7017 : FF switch
S7018 : Stop switch
S7019 : Rew switch
S7020 : Channel Up switch
S7021 : Channel Down switch
S7023 : Rec switch
S7024 : Eject switch
· 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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SA-HT830VP / SA-HT830VPC