Sony HCD-GRX90AV / HCD-RXD10AV / MHC-GRX90AV Service Manual ▷ View online
HCD-GRX90AV/RXD10AV
– 25 –
– MAIN POWER/SUB POWER SECTION –
– 26 –
VG
VF
VF BUFF
Q14, 15
GRX90AV: E2, E3, SP, AR, MX, AUS
RXD10AV
AC
IN
VOLTAGE
SELECTOR
S951
VF
VF
T11
SUB TRANSFORMER
T951
POWER TRANSFORMER
MAIN
SECTION
D
09
(Page 24)
STANDBY RELAY ON/OFF
FL SW ON/OFF
VREF
POWER ON/OFF
RY-SW
FRONT L-IN
STK MUTE
FRONT RELAY
AC DET
SPEAKER PROTECT IN
PROLOGIC RELAY
REAR L-IN
CENTER-IN
AC4
AC4
RECT
D908-911
AC3
AC3
RECT
D901-904
RECTIFIER
D931, 932
IC902
+7V REG
CD MOTOR +7V
A+10V
3
1
3
1
+10V REG
Q913
SWITCH
Q914
TC MOTOR +12V
A+7V
A–7V
AC DET
3
1
–7V REG
Q951,952,914
+7V REG
Q901,902,913
+5V OUT
Q906
RECTIFIER
D918
CDM D+5V SW
+5V (LED)
(DISPLAY)
+5V (STBY)
(DISPLAY)
+5.6V (STBY)
RDS D+5V UN SW
D+5V UNREG
AC1
AC1
RECT
D883
D883
26V REG
Q971
RECT
D881
D881
AC2
AC2
–VL
VG
+VL
+VH
–VH
IC904
REG
3
1
+5V OUT
Q910
SWITCH
Q904, 905
SWITCH
Q907
+5V REG
Q908
CD A+5V (SW)
ST A+10V
CD POWER
CD D+5V (SW)
RECTIFIER
D502
D509
JW909
GRX90AV
RECT
D12-15
DISPLAY
(VIA POWER)
VF
COM MON
SUB TRANS. D+5.6V
3
1
RELAY DRIVE
Q11
SWITCH
Q16, 17
-26V REG
Q12, 13
RECT
D17-20
RY11
RY11
GRX90AV
AC
IN
IC903
+12V REG
IC901
REG
IC11
5.6V REG
OVER LOAD DET
Q1001
THERMAL DET
Q1023, 1024
Rch
REAR L OUT
OVER LOAD DETECT
CENTER OUT
IC1001 (2/2)
Q1022
MUTE
+VL BUFF
Q1021
18
17
14
20
12
IC1001 (1/2)
3CH
3CH
CCC
+VL
–VL
13
6
7
8
Rch
Rch
OVER LOAD DET
Q1001
PROTECT SW
Q828 – 830
PROTECT OUT
Q825, 826
OVER LOAD DET
Q801
IC801
2CH
Lch
–VH
+VH
Q822
MUTE
–VH SUPP
Q831
+VH BUFF
Q821
20
21
16
15
PROTECT
Q832, 827
RY883
RELAY DRIVE
Q885
SWITCH
Q886
RY882
FAN DET
–12V
RELAY DRIVE
Q883
SWITCH
Q884
RY881
+VH
RELAY DRIVE
Q881
FAN MOTOR
SWITCH
Q431, 432
+VH
+VH
SWITCH
Q882
Q421
Q411
Q411
MUTE
Rch
PHONES
J701
TM801
FRONT
Rch
Rch
R-ch
L-ch
RY-SW
Lch
SURROUND
REAR R-ch
CENTER
REAR L-ch
D916
D915
GRX90AV
RXD10AV
RXD10AV
GRX90AV
GRX90AV
GRX90AV
• Abbreviation
E2
E2
: Without SW tuner E model.
E3
: With SW tuner E model.
SP
: Singapore model.
AR
: Argentine model.
MX : Mexican model.
AUS : Australian model.
AUS : Australian model.
HCD-GRX90AV/RXD10AV
– 27 –
– 28 –
– DISPLAY SECTION –
X601
12.5MHz
33 - 40, 42 - 44
46 - 67
FL601
FLUORESCENT INDICATOR TUBE
VF
72
70
XOUT
LINE IN
XIN
11
14
KEY 0
KEY 3
JOG A
JOG B
2
8
SIRCS
L SEL
1
DISPLAY CONTROL
IC601
I
2
C DATA
I
2
C CLK
78
79
73
RESET
LED
SWITCH
PANEL LED
REMOTE
CONTROL
RECEIVER
IC602
LED
CONTROL
Q603
ROTARY
ENCODER
KEY
MATRIX
+5V (LED)
SEG1-SEG22
GR2-GR12
9
10
VOL A
VOL B
ROTARY
ENCODER
VOLUME
S602
S601
(JOG)
Q601,602
16
17
17
18
19
S LOW (F01)
BPF1 (F02)
BPF2
BPF3
BPF4
BPF3
BPF4
09
SPE SIG
IIC DATA
IIC CLK
RESET
E
MAIN
SECTION
(Page 24)
7
21
ALL B (L+R)
4
17
16
14
13
12
S LOW
BPF1
BPF2
BPF3
BPF4
ALLB
F01
F02
F04
F05
F06
L+R
SPEANA BPF FILTER
IC603
REC IN
6
11
STANDBY LED
D754
ECO
TIMER LED
D632
LED SWITCH
Q606
+5V (STBY)
TIMER SELECT
27 - 32, 45
GR1, GR13-GR18
IND BUFF
Q607-613
VF
22 WAKE UP
WAKE UP
20
LED LA
L/P DAT
4
5
3
L/P SCK
13
15
IC604
LED SWITCH
Q604, 605
1
|
5
•
7
•
10
•
11
•
17
•
19
|
23
HCD-GRX90AV/RXD10AV
IC101
#ª
FE
1
2
3
4
5
WAVEFORMS
– BD (CD) SECTION –
– BD (CD) SECTION –
IC101
^§
XTAI
IC101
%¡
RF AC
IC101
$¡
TE
IC101
@§
MDP
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
– PANEL (2/2) SECTION –
1
2
IC501
!¡
XC-OUT
IC501
!£
X-OUT
– MAIN (3/4) SECTION –
IC601
&™
X OUT
1
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 500mVp-p (PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
7.5
µ
sec
2.4Vp-p
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
12.5MHz
3.4Vp-p
– 29 –
– 30 –
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 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.
•
¢
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: 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.
• Signal path.
F
: FM
f
: AM
g
: VIDEO/MD/DVD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
• Abbreviation
CND : Canadian model.
G
G
: German model.
E2
: Without SW tuner E model.
E3
: With SW tuner E model.
EA
: Saudi Arabia model.
AUS
: Australian model.
SP
: Singapore model.
AR
: Argentine model.
TH
: Thai model.
MX
: Mexican model.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
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
!
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.
HCD-GRX90AV/RXD10AV
7-3. PRINTED WIRING BOARD – BD (CD) SECTION –
• See page 18 for Circuit Boards Location.
– 31 –
– 32 –
(Page 36)
(VC)
(RP)
(AGCCON)
(FE)
(FF1)
(TE)
19
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