Sony HCD-GX90D / HCD-RV800D / MHC-GX90D / MHC-RV800D Service Manual ▷ View online
25
25
HCD-GX90D/RV800D
6-2. Circuit Boards Location
SUB PANEL board
PANEL board
TRANSFORMER board
SUB TRANSFORMER board
MAIN board
TC board
MB board
VIDEO board
FRONT AMP board
REG board
DRIVER board
RF board
DIODE board
MOTOR board
SENSOR board
REMOTE board
SURROUND
board
Note on Schematic Diagram:
• 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.
•
5
: fusible resistor.
•
C
: panel designation.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• 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
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
c
: digital out
g
: MD (VIDEO)
• Abbreviation
CND : Canadian model
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
B
These are omitted.
C
E
C
B
These are omitted.
E
Q
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.
26
26
HCD-GX90D/RV800D
6-3. Printed Wiring Board – RF Board –
• See page 25 for Circuit Boards Location.
IC001
(Page 28)
• Semiconductor
Location
D001
B-5
D002
B-5
IC001
A-5
Q001
C-3
Q002
C-3
Ref. No.
Location
27
27
HCD-GX90D/RV800D
6-4. Schematic Diagram – RF Board –
• See page 55 for Wavefoms. • See page 64 for IC Block Diagrams.
JL001
JL003
JL006
C002
C004
C005
C006
C008
C009
C010
C011
C012
C013
C014
C015
C016
C017
C018
C019
C024
C029
C030
C031
C033
C035
C040
C041
C001
C003
C027
JL002
JL004
C020
C021
C022
C023
C037
C042
IC001
L001
L002
Q001
Q002
R003
R005
R006
R007
R009
R010
R011
R012
R013
R014
R015
R016
R017
R018
R021
R024
R025
R026
R027
R028
R029
R033
R034
IOP1
IOP2
JL005
JL007
C036
R022
R023
D001
D002
R032
C049
C025
C026
R001
CN001
CN003
C039
C038
CN002
C032
C034
C028
R008
R004
R035
R041
R019
R020
16V
16V
10V
10V
B
B
1000p
CH
1000p
CH
B
B
2200p
B
2200p
B
2200p
B
2200p
B
5600p
B
5600p
B
B
B
B
1000p
CH
B
B
B
B
6.3V
6.3V
B
22p
CH
22p
CH
22p
CH
22p
CH
330p
CH
180p
CH
CXD1881AR
2SB1132-T100-QR
2SB1132-T100-QR
33
47k
470
33
47k
470
0
0
0
0
0
0
0
0
0
0
100
12k
E
0
0
0
0
10M
B
220
820
1SS355TE-17
1SS355TE-17
100
B
B
B
100
E
24P
9P
29P
B
B
B
33
33
0
1k
0
0
28
28
HCD-GX90D/RV800D
6-5. Printed Wiring Board – MB Board (Side A) –
• See page 25 for Circuit Boards Location.
IC206
IC701
IC509
IC901
IC302
IC303
IC215
IC904
IC902
IC906
TH
EXCEPT
TH
TH
(Page 26)
(Page 38)
(Page 38)
(Page 42)
(Page 42)
CN501
X902
• Semiconductor
Location
D301
E-3
D302
E-3
IC206
C-1
IC215
C-2
IC302
E-3
IC303
D-2
IC509
B-4
IC701
B-1
IC901
C-3
IC902
C-3
IC904
C-3
IC906
D-3
Q903
E-4
Q904
E-4
Ref. No.
Location
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