Sony HCD-BX6AV / HCD-DX6AV / MHC-BX6AV / MHC-DX6AV Service Manual ▷ View online
9
CD TRAY
1
two screws
(KTP3
(KTP3
×
8)
2
top cabinet
1
two screws
(KTP3
(KTP3
×
8)
4
screw
(BTP3
(BTP3
×
10)
6
screw (BTP3
×
10)
7
bracket
5
bracket
8
CD tray
3
wire (flat type) (5core)
(CN06)
(CN06)
DECORD BOARD
4
three screws
(BTP2.6
(BTP2.6
×
6)
6
DECORD board
1
wire (flat type) (5core)
(CN706)
(CN706)
2
wire (flat type) (15core)
(CN701)
(CN701)
3
connector
(CN707)
(CN707)
5
connector
(CN702)
(CN702)
10
BASE UNIT
CASSETTE LID
2
flange screw
3
UD-gear
4
screw
(PTPWH3
(PTPWH3
×
8)
5
UD-cam
8
spring
7
spring
6
spring
1
two screws
(PTPWH3
(PTPWH3
×
10)
9
base unit
cassette door
(Note: Four claws are used.)
(Note: Four claws are used.)
11
11
SECTION 4
DIAGRAMS
4-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. U: µF,
• All capacitors are in µF unless otherwise noted. U: µF,
pF: µµF 50 WV or less are not indicated except for
electrolytics and tantalums.
electrolytics and tantalums.
• If a numeric value of capacitor is a decimal function, the
preceding zero may be omitted.
(For example, .1 expresses 0.1)
(For example, .1 expresses 0.1)
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• 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
: AM
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: TAPE REC
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
• Abbreviation
CND : Canadian model
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
pièce portant le numéro
spécifié.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
• Circuit Boards Location
SW C board
SW D board
SW B board
DECORD board
MOTOR board
SW A board
MAIN board
PANEL board
H/P board
BACK UP board
PHOTO SOCKET board
FRONT board
CENTER/REAR board
12
12
HCD-BX6AV/DX6AV
B+
B+
B+
B+
B+
B+
DECORD BOARD
(1/4)
CN701
15P
Q701
AUTOMATIC POWER
CONTROL
C701
47
16V
05
10
9
8
7
6
OPTICAL
PICK-UP
BLOCK
(OPTIMA-7)
0
IC701
RF AMP, FOCUS/TRACKING
ERROR AMP
C737
.01U
100V
100V
100V
0.1 100V
0.1 100V
100V
100V
100V
100V
50V
0.033 100V
100V
100V
C704
0.033
100V
2
1
1
A
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
J
K
15
16
DECORD
BOARD
(2/4)
DECORD
BOARD (3/4)
100V
5
2.4
4.8
2.5
5
2.5
4.8 2.6 1.8 1.8
2.5 1.2
2.8
4.3 1.6 0.1
2.5
0
0
5
5
0
5
5
5
4.9
1.3
2.5
2.5
2.5
2.5
2.5
1.8
2.5
2.4
2.3
2.5
1.9
1.9
2.6 2.6 2.3
2.4 2.2 2.5 2.5
2.5
2.5
2.5 0.8
2.4
2.7
2
3
1
4-2.
SCHEMATIC DIAGRAM – CD Section (1/4) –
•
See page 28 for Waveforms.
•
See page 29 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
(Page 13)
(Page 14)
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