Sony HCD-RXD7AV / MHC-RXD7AV Service Manual ▷ View online
HCD-RXD7AV
33
33
7-14.
SCHEMATIC DIAGRAM CENTER/REAR AMP SECTION
• Refer to page 21 for Note on Schematic Diagrams.
F001
5A/125V
TO
MAIN BOARD
CN502
(Page 25)
F
TO
MAIN BOARD
CN305
(Page 25)
A
TO
MAIN BOARD
CN302
(Page 25)
B
TO
FRONT AMP BOARD
CN506
(Page 34)
J
NOTE :
• Voltages and waveforms are dc with
respect to ground under no-signal conditions.
no mark : FM
• Voltages and waveforms are dc with
respect to ground under no-signal conditions.
no mark : FM
The components identified by
mark
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
specified.
Les composants identifiés par
une marque
une marque
!
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.
HCD-RXD7AV
34
34
7-15.
SCHEMATIC DIAGRAM FRONT AMP SECTION
• Refer to page 21 for Note on Schematic Diagrams.
K
35
G
G
S
S
D
D
B
B
E
B
E
E
B
E
B
E
B
E
B
E
B
E
B
E
FRONT AMP BOARD
TO MAIN BOARD
CN301
(Page 22)
K
TO
AMP BOARD
CN506
(Page 32)
J
1-675-439
11
(4143272310)
FAN
MOTOR
1
1
1
1
8
8
1
1
5
1
5
15
12
1
1
6
8
2
16
1
2
A
B
C
D
E
3
4
5
6
7
CN508A
IC502
C592
C591
CN508
R573
C561
C562
C539
R575
R545
C541
R541
C542
R538
R537
Q513
C543
C544
R548
R547
R551
R558
R557
R549
R550
CN507A
CN507
C560
TH501
R577
BLK
RED
C559
D520
R525
R526
R527
Q516
R576
C552
R530
R529
D514
R578
CN505
Q507
R569
Q508
R571
R592
C551
R528
R580
Q517
D519
R565
C553
R566
D515
C556
R563
R567
D517
R562
Q515
C558
R561
R560
C555
Q510
Q509
R568
D516
R591
CN301
D513
D512
R564
IC503
D518
C533
C557
CN506
D525
D526
GND
1
R559
R555
Q511
C549
R553
R554
R552
C547
C548
C545
Q512
C550
R556
R574
Q514
R540
R572
C538
C546
R544
R543
R539
R546
C540
R542
7-16.
PRINTED WIRING BOARD FRONT AMP SECTION
• Refer to page 21 for Note on Printed Wiring Boards. • Refer to page 21 for Circuit Boards Location.
Ref. No.
Location
D512
D-5
D513
C-5
D514
B-6
D515
C-6
D516
D-6
D517
C-6
D518
D-6
D519
C-6
D520
B-4
D525
E-6
D526
E-6
IC502
B-3
IC503
C-6
Q507
B-6
Q508
B-6
Q509
D-6
Q510
D-6
Q511
C-4
Q512
D-4
Q513
C-2
Q514
C-1
Q515
D-5
Q516
B-4
Q517
B-6
• Semiconductor
Location
36
7-17.
IC BLOCK DIAGRAMS
IC701
CXA1992BR (
CD DECORD Board)
FZC
VC
TDFCT
TZC
ATSC
TEI
LPFI
TEO
VEE
EI
E
F
FE
BIAS
SL P
SL M
SL O
ISET
VCC
XRST
DATA
DATA
XLT
CLK
CLK
LOCK
SENS2
SENS1
C. OUT
VCC
DFCTO
IFB1 – IFB6
BAL1 – BAL4
TOG1 – TOG4
FS1 – FS4
TG1 – TG2
TM1 – TM7
PS1 – PS4
TGH
TGL
BALH
BALL
ATSC
DFCT
TM1
TG1
FS2
IFB1 – IFB6
VCC
VEE
VCC
VEE
VEE
PD 2
I-V AMP
FOK
CC2
CC1
CB
CP
RF O
RF I
RFTC
PD2
PD1
PD
LD
RF M
TA
O
TA
M
FSET
TG2
TGU
SRCH
FEO
FEI
FDFCT
FGD
FLB
FE O
FE M
TZC
FZC
FOL
FOH
MIRR
LDON
LPCL
LPC
TGFL
DFCT1
CC1
1
2
3
4
5
6
7
8
9
10
26
25
24
23
22
21
21
20
19
18
17
16
15
14
40
41
42
43
44
45
46
47
48
49
50
51
52
39
PD 1
I-V AMP
38
PD
AMP
37
LD
AMP
LASER
POWER
CONTROL
FOCUS BIAS
WINDOW
COMPARATOR
FOCUS ERROR
AMP
F I-V
AMP
AMP
E I-V
AMP
AMP
TGFL
TRACKING GAIN
WINDOW
COMPARATOR
E-F BALANCE
WINDOW
COMPARATOR
ATSC
WINDOW
COMPARATOR
TZC
COMPARATOR
TRACKING PHASE
COMPENSATION
CENTER
VOLTAGE
GENERATOR
FZC
COMPARATOR
FOCUS PHASE
COMPENSATION
CHARGE UP
FSET
ISET
IIC DATA REGISTER, INPUT SHIFT REGISTER,
ADDRESS DECODER, SENSE SELECTOR,
OUTPUT DECODER
TTL
↓
IIL
IIL
↓
TTL
IIL
↓
TTL
RF SUMMING
AMP
FOCUS OK
COMPARATOR
PEAK/BOTTOM
HOLD
PEAK/BOTTOM
HOLD
DEFECT
AMP
MIRR
COMPARATOR
36
34
31 30
29
28
27
35
33 32
BAL1 – BAL4
TM6
TM2
VCC
VEE
TM5
11
12
13
TG2
TM4
VCC
VEE
TM3
FS1
VCC
VEE
TOG1 – TOG4
TM7
FS4
DFCT
+
–
+
–
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