Notes Of Schematic Diagram - Panasonic HDMI SA-XR70E Service Manual

SA-XR70E / SA-XR70EB / SA-XR70EG

14 Notes of Schematic Diagram

(All schematic diagrams may be modified at any time with the
development of the new technology)
Note:
S941 : POWER switch
S961 : BI-WIRE switch
S962 : BASS SYNTHESIZER switch
S963 : REMASTER switch
S964 : TUNE UP switch
S966 : SPEAKERS A + B / SPEAKER A/B
switch
S967 : MULTI CONTROL switch
S968 : 6.1 CH DECODING switch
S969 : TUNE DOWN 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 waveformsdepending upon the internal impedance of
the tester or the measuring unit.
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· 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.
· 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.
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