Circuit Boards Location - Sony CFD-S350 Service Manual

• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
– CD Board –
no mark : CD PLAY
– TUNER Board –
no mark : FM
( ) : AM (MW)
< > : LW
– Other Boards –
no mark : FM
( ) : PB
< > : REC
[ ] : CD PLAY
• 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 (MW/LW)
E
: PB
a
: REC
J : CD PLAY
• Abbreviation
CND : Canadian model.
E92 : AC 120V area in E model.
AUS : Australian model.
KR : Korean model.
MX : Mexican model.
SP : Singapore model.
TH : Thai model.
TW : Taiwan model.
CFD-S350/S350L
for printed wiring boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• W : indicates side identified with part number.
• : internal component.
f
• : Pattern from the side which enables seeing.
(The other layer's patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
C
These are omitted.
Q
B E
Q
B C E
These are omitted.
Q
B C E

6-5. CIRCUIT BOARDS LOCATION

H/P board
CD KEY board
LCD board
POWER KEY board
BATT-2 board
• Waveforms
— CD BOARD — (CD PLAY)
1
IC701 4 (RF)
0.85 ± 0.2Vp-p
500mV/div, 0.5 µ sec/div 100mV/div, 20 µ sec/div
2
IC701 qd (FE)
1.8V
Approx. 100mVp-p
100mV/div, 20 µ sec/div 1V/div, 0.05 µ sec/div
— MAIN BOARD —
1
IC801 ua (XT2)
1.5Vp-p
32.768kHz
2V/div, 10 µ sec/div 2V/div, 10 µ sec/div
23 23
POWER board
CD board
BATT-1 board
TC board
MAIN board
— TUNER BOARD —
1
3 IC2 w; (XOUT)
IC701 qg (TE)
1.8V
Approx. 100mVp-p
0.5V/div, 5 µ sec/div
4
IC701 rk (XOUT)
— TC BOARD —
1
Q301 C (REC)
3.2Vp-p
16.93MHz
0.1V/div, 5 µ sec/div
2 2
IC801 ug (X2) T301, HRP301 (YEL)
1.2Vp-p
4.19MHz
10V/div, 5 µ sec/div
CFD-S350/S350L
Ver. 1.1
TUNER board
(CFD-S350)
(CFD-S350L)
1.8Vp-p
75kHz
4Vp-p
19.5 µ sec
40Vp-p
19.5 µ sec