Sony CMT-L1 / HCD-L1 Service Manual ▷ View online
25
25
HCD-L1
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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.
F
: FM
E
: PB
a
: REC
J
: CD (Analog)
c
: CD (Digital)
• Abbreviation
SP
: Canadian model.
CND : Singapore model.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
6-2. Circuit Boards Location
TOUCH SWITCH board
POWER board
MAIN board
AMP board
FM/AM tuner
switching regulator
Switch board
FL (L1) board
L MOTOR board
ENCODER board
CD board
L.SENSOR board
LED (R) board
LED (L) board
D.SENSOR board
BD board
C MOTOR board
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
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26
HCD-L1
6-3. Printed Wiring Board BD Section (Side A)
(Page 31)
IC101
IC106
IC103
IC102
(BLK)
(RED)
TP(RFAC)
TP(DVC)
TP(TE)
Ref. No.
Location
IC101
A-1
IC102
B-4
IC103
B-3
IC106
A-2
Q101
C-3
• Semiconductor
Location
• See page 25 for Circuit Boards Location.
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27
HCD-L1
• See page 25 for Circuit Boards Location.
6-4. Printed Wiring Board BD Section (Side B)
Ref. No.
Location
D101
A-2
D201
A-5
Q103
A-2
• Semiconductor
Location
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28
HCD-L1
• See page 41 for Wavefoms. • See page 41 for IC Block Diagrams.
6-5. Schematic Diagram BD Section
IC B/D
IC B/D
(Page 29)
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