Sony SRS-RF90R, Руководство по обслуживанию

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SRS-RF90R/RF90RK/TMR-RF90
SECTION 4
DIAGRAMS
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages is dc with respect to ground under no-signal
(detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
K
L
: AUDIO
: FM
• CIRCUIT BOARDS LOCATION (SRS-RF90R)
RX board
CHARGE board
AMP board
JACK board
SW board
REFLECTOR board
MEGABASS board