Printed Wiring Board - Sound Section; Schematic Diagram - Sound Section - Sony CFD-S39 Service Manual

CFD-S39
6-14. PRINTED WIRING BOARD — SOUND SECTION — • Refer to page 17 for Circuit Boards Location.
1 2 3
(Page 27)
MAIN BOARD
CNB311
A
SOUND BOARD
B
C
17 20
16 10
D
04
6-15. SCHEMATIC DIAGRAM — SOUND SECTION —
4 5
25 30 32
5 1
(11)
– 39 –
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
(Page 29)
and tantalums.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
– 40 –