Sony CFD-W57 - Cd Radio Cassette-corder, Service Manual

Page: 56 / 74

1
A
B
C
D
E
F
G
H
2 3 4 5 6 7
1. PRINTED WIRING BOARD — TUNER SECTION — (US Model)
CFD-W57
– 5 – – 6 –
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.
•
f
: internal component.
• U : B+ Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F : FM
f : AM
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• W : indicates side identified with part number.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
Ref. No. Location
D1 E-3
D2 E-3
D3 G-6
D10 H-3
D11 H-3
D12 C-3
D15 C-2
IC1 D-4
IC2 D-6
Q10 E-4
Q11 F-5
Q12 E-4
Q13 D-5
Q15 B-5
Q16 B-4
Q18 A-4
Q19 A-5
Q60 E-6
Q61 F-6
Q80 C-6
• Semiconductor
Location
(Page 19)