Sony HCD-GRX8 / HCD-R800 / HCD-RX88 / HCD-RX99 / MHC-GRX8 / MHC-R800 / MHC-RX88 Service Manual ▷ View online
– 29 –
– 30 –
– MAIN SECTION –
HCD-GRX8/R800/RX88/RX99
MUTE
Q191
DBFB
SPE SIG
IIC DATA
IIC CLK
RESET
FRONT
F RELAY
R RELAY
PL RELAY
CD POWER
STK MUTE
6
1
34
97
26
27
28
98
95
96
87
93
D951
RESET
SWITCH
Q951
RESET
IC951
+5V
11
10
X501
5MHz
15
16
14
13
09
46
100
CD POWER
STK MUTE
51
66
70
69
68
72
ST DIN
STEREO
TUNED
ST CE
ST CLK
ST MUTE
ST DOUT
TC RELAY
TC MUTE
A PLAY SW
B PLAY SW
B PLAY SW
60
61
18
18
76
73
74
57
48
47
75
36
34
58
TBL L
TBL R
SCOR
T SENS
SENS 2
SENS
XRST
CD CLK
CD DATA
DISC SENS
SQ CLK
SQ DATA IN
XLT
2
1
DBFB H/L
TA MUTE
55
56
IIC DATA
IIC CLK
RESET
AC CUT
X1
X2
XT1
XT2
X502
32.768KHz
MASTER CONTROL
IC501
6
F RELAY
R RELAY
PL RELAY
RDS DATA
RDS INT
RDS INT
RX88/RX99:
AEP,UK,G
AEP,UK,G
92
90
89
88
82
83
83
84
PB A/B
R/P PASS
BIAS
REC MUTE
NR ON/OFF
A SHUT
B SHUT
B HALF
A HALF
EQ H//N
CAP M H/L
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
ALC ON/OFF
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
ALC ON/OFF
A TRG
B TRG
AMS IN
AMS IN
M62442 LAT
M62442 DATA
M62442 CLK
RELAY REC/PB
DJ-SIG
DJ-MUTE
ST L
RDS INT
RDS DATA
COM DIN
COM CLK
COM DATA
STEREO
TUNED
ST CE
MUTE
L CH
TBL. L
TBL. R
SCOR
T. SENS
SENS 2
SENS
X RST
CD CLK
CD DATA
DISC SENS
SQ CLK
SQ DATA
X LAT
B
DECK
SECTION
C
CD
SECTION
A SHUT
PB L
REC L
BIAS ON/OFF
B SHUT
RM ON/OFF
LM ON/OFF
REC/PB PASS
B HALF
A HALF
A PLAY
A PLAY
B PLAY
PB A / B
NORM/HIGH
NR ON/OFF
CAP M H/L
A TRG
B TRG
B TRG
MS OUT
3
3
1
2
A
TUNER
SECTION
(Page 28)
(Page 22, 24)
(Page 26)
F
DISPLAY
SECTION
(Page 34)
MUTE
SWITCH
Q142
POWER ON/OFF
5
POWER
D
POWER
SECTION
67
• R CH: Same as L ch
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO/MD
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO/MD
• Abbreviation
G
G
: German model.
EA3 : Saudi Arabia model.
MD IN L
VIDEO/IN
(AUDIO)
L
MD/VIDEO
(AUDIO)
OUT L
81
80
79
78
64
63
OUT OPEN
ENC1
ENC2
ENC3
LOAD IN
LOAD OUT
OPEN
ENC-1
ENC-2
ENC-3
LOAD IN
LOAD OUT
J101
(Page 31)
E
DISPLAY
SECTION
(Page 33)
64
69
67
66
68
1 2 3
60
2
42
58
57
41
36
38 39
40
MUTE
Q113
SUPER
WOOFER
J191
MUTE
Q411
2
9
LPF 1 IN LPF 2 OUT
ECHO
LEVEL
LEVEL
MIC
LEVEL
ECHO PROCESSOR
IC751
IC751
MIX
MIC
MIC
RV750
J751
65
52
22
21
87
31
85
86
17
17
77
99
99
7
8
DBFB
SWITCH
Q111,112
SWITCH
Q111,112
DBFB
SWITCH
Q141,143
SWITCH
Q141,143
SUPER WOOFER
AMP
IC191
AMP
IC191
33 32
R-CH
R-CH
EQ
AMP
SELECT
SWITCH
SWITCH
MICON
INTERFACE
INTERFACE
IC750(1/2)
IC750(2/2)
IC411(1/2)
IC411(2/2)
VOLUME
IC111(2/2)
IC111(2/2)
EQ
IC111(1/2)
IC111(1/2)
MIX AMP
IC401
IC401
1
3
6
6
7
7
V
TC
TU
CD
MD
GRX8:EA3
– 31 –
– 32 –
– POWER SECTION –
HCD-GRX8/R800/RX88/RX99
• R CH : Same as L ch
• SIGNAL PATH
: FM
• Abbreviation
E2
E3
EA3
SP
MY
HK
TW
AR
• SIGNAL PATH
: FM
• Abbreviation
E2
E3
EA3
SP
MY
HK
TW
AR
: Without SW tuner E model.
: Without SW tuner E model.
: Saudi Arabia model.
: Singapore model.
: Malaysia model.
: Hong Kong model.
: Taiwan model.
:Argentine model.
: Without SW tuner E model.
: Saudi Arabia model.
: Singapore model.
: Malaysia model.
: Hong Kong model.
: Taiwan model.
:Argentine model.
Rch
Rch
PROTECT
CONTROL
CONTROL
Q306,307
RY401
RY402
THERMAL
DET
Q321,322
THP321
OVER LOAD
DET
Q201
Rch
POWER AMP
IC201
FRONT
PL RELAY
R RELAY
F RELAY
DBFB
STK MUTE
D5V
SWITCHED
Q932
D932
+5.6V
M+7V
A+7V
A–7V
+5.6V REG
IC931
+7V REG
IC941
+10V REG
IC911
+10V
+7V
ST+10V
+10V REG
IC921
Q934
VFDP
GRX8:E2,E3,SP,MY,HK,TW,EA3
/R800:AR
/R800:AR
UNREG
–12V
POWER B+
POWER B–
RY101
AC
IN
AU/D5V SW
CD POWER
8
3
12
FRONT
FRONT
SPEAKER
TM401
PHONES
J755
Rch
FRONT
SURROUND
SPEAKER
TM402
RELAY
DRIVE
Q403,407
RELAY
DRIVE
Q408
Q408
Rch
FAN MOTOR
DRIVER
Q961, 962
M
UNREG
–12V
–12V
M901
FAN
MOTOR
3
1
3
1
+7V REG
IC901
–7V REG
IC902
3
1
3
2
3
1
3
1
RELAY
DRIVE
Q401,402
MUTE
SWITCH
Q304,305
POWER ON/OFF
CD REG
Q931
+5V REG
Q933
RELAY
DRIVER
Q101
VF REG
Q111
RECT
D111,112
VOLTAGE
SELECTOR
S501
RECT
D102
D102
RECT
D101
D101
VF
VF
T501
POWER
TRANSFORMER
MAIN
SECTION
D
09
(Page 30)
RECT
D103,
D104
+12V REG
Q911-913
SWITCH
Q901
Q905
GRX/R800/RX99
RX88
GRX8/R800/RX99
CD+5V
Q937
RX88/RX99
GRX8/R800
RY404
– DISPLAY SECTION –
– 33 –
– 34 –
HCD-GRX8/R800/RX88/RX99
X601
8MHz
41 - 53
54 - 57
FL601,Q70,702
FLUORESCENT INDICATOR TUBE
VF
8
9
XOUT
LINE IN
XIN
26
29
KEY 0
KEY 3
JOG A
JOG B
21
22
LED1
LED15
SIRCS
L SEL
33
DISPLAY CONTROL
IC601
SDA
SCL
24
23
10
RESET
LED
SWITCH
PANEL LED
REMOTE
CONTROL
RECEIVER
IC602
LED
CONTROL
Q603
LED
SWITCH
Q854,855
Q854,855
SPEANA
CONTROL
Q958-960
DJ MUTE
DJ SIG
ROTARY
ENCODER
KEY
MATRIX
KEY
MATRIX
D+5V
SEG1-SEG20
GR1-GR13
19
20
VOL A
VOL B
ROTARY
ENCODER
VOLUME
S602
S601
(JOG)
PANEL LED
Q601,602
34
35
35
36
37
SPEANA 1
SPEANA 2
SPEANA 3
SPEANA 4
SPEANA 2
SPEANA 3
SPEANA 4
D806
D805
09
SPE SIG
IIC DATA
IIC CLK
RESET
X501
8MHz
X851
4.09MHz
E
MAIN
SECTION
(Page 30)
F
MAIN
SECTION
25
32
79
•
80
•
1
6
11
12
14
18
•
•
L+R
XOUT
XIN
BPM LED B
BPM LED A
BOMBER LED
ON/OFF LED
63
64
PANEL CONTROL
IC801
I2C CLK
RESET
28
JOG B
27
JOG A
36
33
BPF LOW
BPF HIGHT
37
SP4
SP1
L+R
L+R
29
SIRCS
19
I2C DATA
12
20
RST
BSY
61
62
KEY O
S801-808
D801-803
38
KEY 1
39
MUTE
14
DATA
15
CLK
16
LAT
13
CH
(Page 29)
4
17
16
15
14
13
SP1
SP2
SP3
SP4
L+R
•
5
SD
OUT
SI
ST
CH
XT
XT
RST
BUSY
BUSY
23
SOUND MIX
IC851
MUTE
SWITCH
Q851
SWITCH
Q851
14
15
8
16
17
20
2
3
2
3
18
4
F01
F02
F03
F04
L+R
SPEANA BPF FILTER
IC603
– 35 –
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 pro-
duction tolerances.
duction tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM
g
: VIDEO/MD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
• Abbreviation
G
: German model.
E2
: Without SW tuner E model.
E3
: With SW tuner E model.
EA3
: Saudi Arabia model.
EA4
: Israeli model.
EE
: East European model.
AUS
: Australian model.
SP
: Singapore model.
MY
: Malaysia model.
HK
: Hong Kong model.
TW
: Taiwan model.
AR
: Argentine model.
IA
: Indonesian model.
TH
: Thai model.
MX
: Mexican model.
SAF
: South African model.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
IC103
@¶
MDP
1
2
3
4
5
WAVEFORMS
– CD SECTION –
– CD SECTION –
IC101
#£
RFO
IC101
2
FEI
IC101
$¶
TEI
IC103
^™
RFCK
6
IC103
^º
XPCK
7
IC103
&¢
WFCK
IC103
*ª
XTAI
8
500mV/DIV, 500nsec/DIV
1.3Vp-p
200mV/DIV, 1
µ
sec/DIV
0.5Vp-p
50mV/DIV, 1msec/DIV
0.2Vp-p
7.8
µ
sec
2.5Vp-p
230
µ
sec
5Vp-p
135
µ
sec
5Vp-p
135
µ
sec
5Vp-p
16.9344MHz
2.6Vp-p
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