Sony CFD-E55L (serv.man2) Service Manual ▷ View online
CFD-E55L
– 21 –
– 22 –
– 23 –
4-5.
SCHEMATIC DIAGRAM – MAIN Section (TUNER) (TYPE C) –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
U
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW/LW
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: MW/LW
CFD-E55L
(Page 31)
(Page 26)
CFD-E55L
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Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
U
: B+ Line.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER
(
no mark : TUNER
(
) : CD
〈〈
〉〉
: TAPE
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: TUNER
E
: TAPE PLAY
a
: TAPE RECORD
J
: CD PLAY
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
4-6.
SCHEMATIC DIAGRAM – MAIN (AUDIO) /POWER SUPPLY Section (TYPE C) –
• IC Block Diagram
IC303
BA5417
STANDBY
T.S.D.
BS
FILTER
PRE GND2
PRE GND1
NF2
IN2
IN1
NF1
FIL
TER
STBY
POWER GND
BS1
OUT1
VCC
OUT2
10
3 4 5
6
BS
BS2
2
NC
1
8
9
7
11 12
13
14 15
+
–
–
+
–
–
(Page 22)
(Page 17)
(Page 31)
(Page 31)
(Page 17)
CFD-E55L
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4-7.
PRINTED WIRING BOARDS – DISPLAY Section (TYPE C) –
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
D601
A-8
D602
E-6
IC501
C-5
IC502
B-6
IC503
C-3
Q501
B-6
Q502
B-6
Q503
D-4
Q504
C-4
Q505
C-4
4-8.
SCHEMATIC DIAGRAM – DISPLAY Section (TYPE C) –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
no mark : TUNER
(
) : CD
〈〈
〉〉
: TAPE
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
2
1
1
2
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E
F
05
(Page 18)
(Page 18)
(Page 13)
(Page 19)
(Page 26)
(Page 26)
(Page 17)
(Page 22)
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