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SA-HT670PC
17 Schematic Diagram Notes
· This schematic diagram may be modified at any time
with the development of new technology.
Notes:
S6900:
S6901-S6905:
S6906:
S6907:
S6908:
S6909:
S6910:
S6911:
S6912:
S6913:
S6914:
S6915:
S6916:
VR6900:
· Indicated voltage values are the standard values for the unit
measured by the DC electronic circuit tester (high-
impedance) with the chassis taken as standard. Therefore,
there may exist some errors in the voltage values,
depending on theinternalimpedance of the DC circuit tester.
· Important 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.
· The supply part number is described alone in the
replacement parts list.
· Voltage and signal line
Standby / on switch (
Disc switch (DISC1-DISC5).
Disc check switch.
R. skip, search and tuning switch
(
/
/ TUNING
F. skip, search and tuning switch
(
/
/ TUNING
CD / Tune mode switch [
MODE].
Sound field control (SFC) switch.
Progressive out switch.
Disc change button (DISC CHANGE
).
Drawer open / close switch (
Open / Close).
Source select switch (SELECTOR).
Stop and FM mode switch (
MODE).
Play and memory switch (
Memory).
Volume control.
by
mark
have
: +B Signal line
: CD-DA signal line
: Main signal line
: DVD (Video) signal line
: DVD (Audio) signal line
: FM/AM signal line
: -B Signal line
Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
).
repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
).
Do not touch the legs of IC or LSI with the fingers directly.
).
/ TUNE
FM
special
54
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