Printed Wiring Board - Cd Section - Sony CFD-S36 Service Manual

CFD-S36
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• 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.
• : internal component.
f
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• H : adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB
a
: REC
J
: CD
Common Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : internal component.
f
• : Pattern from the side which enables seeing.
6-5. PRINTED WIRING BOARD — CD SECTION — • Refer to page 15 for Circuit Boards Location.
1 2 3
A
B
TP
(L-CH)
C
D
MAIN
BOARD 1
CNP804
(Page 20)
E
F
G
H
I
J
18
4 5 6
TP
(R-CH)
FY
TY
TP(TE)
TP
(FE)
TP
(RF)
18
7 8 9
• Semiconductor
Location
Ref. No. Location
IC701 D-5
IC702 I-4
Q701 G-7
FX
TX
TP
(VREF)
1-680-943-
10