Diagrams - Sony SRS-RF90RK Service Manual

SRS-RF90R/RF90RK/TMR-RF90
• CIRCUIT BOARDS LOCATION (SRS-RF90R)
CHARGE board
AMP board
RX board
12
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 / W or less unless otherwise
4
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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
K
: FM
L : AUDIO
SW board
REFLECTOR board
MEGABASS board
JACK board