Sony HCD-GRX5 / HCD-RX66 / MHC-GRX5 / MHC-RX66 Service Manual ▷ View online
HCD-GRX5/RX66
– 23 –
– 24 –
7-3.
BLOCK DIAGRAM – MAIN Section –
MIC LEVEL
DBFB CONTROL
SWITCH
Q111
SPEANA
MIXING AMP
IC102
RESET SIGNAL
GENERATOR
IC502
POWER AMP
IC801
CD-L
A
(Page 20)
C
(Page 22)
PB-L
B
(Page 22)
R-CH
R-CH
05
FM/AM TUNER UNIT
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT
SELECT
SOUND
CONTROL
CIRCUIT
GRAPHIC
EQUALIZER
CONTROL
CIRCUIT
67
R-CH
FEED BACK SWITCH
Q112
R-CH
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
IN2
+
R-CH
R-CH
D141
R-CH
+
+
+
68
2
58
RV750
MIC AMP
IC750 (1/2)
MIC AMP
IC750 (2/2)
MUTING
Q113
LINE AMP
IC191
OVER LOAD
DETECT
Q801
OVER LOAD
DETECT SWITCH
Q432, 437
DC DETECT
SWITCH
Q433, 434
RESET
SWITCH
Q501
RELAY
DRIVE
Q431
PROTECTOR
Q435, 436
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
IN B2
IN C2
IN C2
66
60 5
69
IN A2
IN D2
IN D2
KEY IN2
KEY IN1
75
33 32 34
KEY OUT
DATA
CLOCK
LATCH
52 51 3
M62442-DATA
M62442-CLK
M62442-LATCH
10
X2
X501
5MHz
X502
32.768kHz
11
X1
13
XT2
14
XT1
BB B2,
BB A2
MIC IN
VOL OUT2
REC
A2
REC-L
E
(Page 25)
D
(Page 25)
(Page 25)
(Page 26)
(Page 26)
SPEANA
DATA, CLK
POWER
CD-POWER
REC
B2
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC INPUT
R-CH
+5V
+
R-CH
R-CH
-1
-2
+
+
–
–
–
+
MUTING
Q191
R-CH
R-CH
57
42
MUTING CONTROL
SWITCH
Q575
MUTING CONTROL
SWITCH
Q571, 572
41
100
2
16
15
6
36
40
J101 (2/2)
MD/VIDEO
(AUDIO) OUT
J191
SUPER WOOFER
J421
PHONES
R
L
TM401
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
R
L
J101 (1/2)
J751
R
MIX MIC
MD/VIDEO
(AUDIO) IN
L
ST-L
FM ANT
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ANTENNA
FM 75
Ω
AM
38, 39
D843
RY401
DBFB-H/L
CD-POWER
POWER
IIC-CLK
IIC-DATA
CLK
DATA
68
ST-CE
65
ST-CLK
66
ST-DIN
67
ST-DOUT
69
TUNED
70
STEREO
72
ST-MUTE
STK-MUTE
LINE-MUTE
F-RELAY
AC-CUT
RESET
1
RESET
SYSTEM CONTROLLER
IC501 (3/3)
56
55
F
G
H
46
5
+
– 25 –
– 26 –
HCD-GRX5/RX66
7-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
REGULATOR
CONTROL SWITCH
Q903
D914
D501, 502
D507
POWER
(Page 23)
G
CD-POWER
(Page 23)
H
D+5V
AUDIO D+5V
B+
SWITCH
Q905, 906
–30V
REGULATOR
Q910
–30V
FL DRIVER (IC601)
CAPSTAN MOTOR DRIVE CIRCUIT,
TRIGGER PLUNGER DRIVE CIRCUIT B+
RECT
D909, 910
+12V
REGULATOR
IC903
+10V
REGULATOR
Q909
–7V
REGULATOR
Q914, 951, 952
+7V
REGULATOR
Q901, 902, 913
+10V
(FM/AM TUNER UNIT B+)
+7V
REGULATOR
IC901
+7V
(CD M+7V)
+5V
REGULATOR
IC902
CD MECHANISM DECK
SECTION B+
B+
SWITCH
Q907, 908
SYSTEM CONTROLLER
(IC501) B+
RECT
D907, 908
RECT
D901 – 904
RECT
D800
D800
VOLTAGE
SELECT SWITCH
S11
VOLTAGE
SELECTOR
S11
AC IN
E, Saudi Arabia, Hong Kong, Singapore,
Taiwan, Indonesia models
Taiwan, Indonesia models
Except E, Saudi Arabia,
Hong Kong, Singapore,
Taiwan, Indonesia models
Hong Kong, Singapore,
Taiwan, Indonesia models
B+
POWER AMP
(IC801)
POWER TRANSFORMER
T11
B–
+7V
TC, PANEL, AUDIO
–7V
VF1
TO
FLUORESCENT INDICATOR TUBE
(FL601)
VF2
REMOTE CONTROL
RECEIVER
IC602
SWITCHING
Q621
FLUORESCENT INDICATOR TUBE DRIVE,
LED DRIVE, KEY CONTROL
IC601
FLUORESCENT
INDICATOR TUBE
FL601
BAND-PASS FILTER
IC603
Q603
D+5V
SPEANA-1
36 SPEANA-3
37 SPEANA-4
37 SPEANA-4
SWITCHING
Q620
32 L+R
LINE IN
33 SIRCS
ROTARY
ENCODER
S601
ROTARY
ENCODER
S602
21 JOG-A
19 VOL-A
22 JOG-B
20
8
9
VOL-B
X-OUT
X-IN
B+ SWITCH
Q601, 602
LED DRIVE
Q604, 608 – 610,
Q613 – 615, 618
31 SPEANA RESET
KEY-0 – KEY-3
SPEANA-2
F01
F03
F04
L+R
RST
F02
GR1
(Page 24)
(Page 23)
D
DATA, CLK
(Page 23)
D610, 612, 621 – 625,
D631 – 633, 651, 652
D613, 616 – 618
SPEANA
41
L.SEL 25
GR13 53
SDA
SCL
SCL
DATA
CLK
RESET
RESET
35
23
24
10
34
15
14
4
13
16
17
26 – 29
SEG1 – SEG24
54 – 69, 72 – 70, 77 – 73
GR2 – GR12
42 – 52
LED1, LED5 – LED8,
LED13 – LED15
79, 3 – 6, 16 – 18
LED9, LED10
11, 12
S601
(JOG DIAL)
S604 – 610, 614 – 625,
S631 – 642, 656 – 659
S602
05
VOLUME
X601
8MHz
18
E
F
– 27 –
– 28 –
Note on Schematic Diagram:
• 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.
Note on Printed Wiring Boards:
• 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.)
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 portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are 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
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
• Abbreviation
AUS
: Australian model.
CND : Canadian model.
E2
E2
: 120 V AC Area in E model.
E3
: 240 V AC Area in E model.
EA3
: Saudi Arabia model.
EA4
: Israel model.
HK
: Hong Kong model.
IA
: Indonesian model.
MX
: Mexican model.
MY
: Malaysia model.
SAF
: South African model.
SP
: Singapore model.
TH
: Thai model.
TW
: Taiwan 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.)
– MAIN Section –
4.4 Vp-p
200 ns
2
IC501
!¢
(XT1)
2.2 Vp-p
30.6
µ
s
– PANEL Section –
3
IC601
9
(X-IN)
3.6 Vp-p
126 ns
C
B
These are omitted.
E
Q
• Indication of transistor.
B
These are omitted.
C
E
Q
1
IC101
#£
(RF O) (PLAY MODE)
5 Vp-p
230
µ
s
0.5 Vp-p
2
IC101
2
(FEI) (PLAY MODE)
5
IC103
^º
(XPCK)
4
IC103
@¶
(MDP)
2.5 Vp-p
7.8
µ
s
0.2 Vp-p
3
IC101
$¶
(TEI) (PLAY MODE)
1.3 Vp-p
6
IC103
^™
(RFCK)
5 Vp-p
135
µ
s
5 Vp-p
135
µ
s
7
IC103
&¢
(WFCK)
8
IC103
*ª
(XTAI)
2.6 Vp-p
16.9344 MHz
• Waveforms
– BD Section –
– BD Section –
1
IC501
!¡
(X1)
– 29 –
– 30 –
HCD-GRX5/RX66
7-5.
PRINTED WIRING BOARD – CD Section –
•
See page 18 for Circuit Boards Location.
• See page 27 for Note on Printed Wiring Boards.
• Semiconductor
Location
Ref. No. Location
IC101
C-5
IC201
B-5
IC501
C-6
Q101
C-3
(Page 43)
MAIN BOARD
CN105
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