Sony HCD-GNX700 / HCD-GNX800 / MHC-GNX700 / MHC-GNX800 Service Manual ▷ View online
HCD-GNX700/GNX800
29
29
HCD-GNX700/GNX800
7-3. BLOCK DIAGRAM – MAIN SECTION –
D
(Page 28)
AMP
SECTION
(Page 30)
AMP
SECTION
(Page 30)
(Page 30)
DISPLAY/POWER
SECTION
TAPE/TUNER
SECTION
(Page 31)
H
G
F
(Page 27)
A
CD SECTION
C
(Page 28)
(Page 28)
E
TAPE/TUNER SECTION
TAPE/TUNER SECTION
J101
R-CH
VOLUME
CONTROL
CPU
INTERFACE
INPUT
SELECT
SWITCH
SURROUND OR
DPL BUFFER
MID/
BASS &
TREBLE
TREBLE
R-CH
R-CH
COMMAND
TOUT1
OUT1
VOLIN1
+
Q101
R-CH
R-CH
SPEANA
DBFB F/B
F-R
F-L
SW OUT
+
+
+
RV1100
IC1101
MIC AMP
IC101
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC401(3/5)
SYSTEM CONTROL
IC201
SURROUND
VOL CONTROL
IC1506
SELECTOR CCT
INA1
INEX1
INC1
SAOUT
DATA
CLK
BB-A1
BB-B1
SWOUT
REC-OUT-L
R-CH
TC-PB-L
ST-L
CD-L
VREF
OUTPUT
R
OUTPUT L
DATA
CLOCK
EFFECTOR SELECT
M16530-CLK
LINE MUTE
M61529-DATA
M61529-CLK
NC
NC
NC
NC
NC
VREF
NC
NC
NC
NC
NC
NC
R-CH
LINE-MUE
J1100(1/3)
J1101(2/3)
L
R
MD/VIDEO
AUDIO
IN
L
R
TV
AUDIO
IN
LPF
I/F
2
14
15
24
18
22
16
21
5
3
6
6
INB1
IND1
4
19
41
40
37
39
38
MIC 1
ECHO
LEVEL
RV1102
MIC 1
LEVEL
RV1101
MIC 2
LEVEL
17
8
MIC
RECB1
7
MIC OUT
C
A
B
B
C
A
B
B
A+9V
34
2
33
32
IC1100
DIGTAL
ECHO
MC1P
MC2P
13
12
6
5
10
9
15
24
14
34
80
81
82
66
+
11
31
25
35
29
7
23
28
27
26
22
3
MUTE
Q180, 181
LINE MUTE
DRIVE
Q544, 545
VREF
VREF
EFFECTOR CTRL 1
52
17
18
J1101(1/3)
J1100(2/3)
J1101(3/3)
J1100(3/3)
MIC 2
15
16
+
+
+
PRE
LPF
POST
LPF
ADPCM
ENCODE
ADPCM
DECODE
ADC
DAC
S/H
DELAY
25
29
23
5
6
7
DA OUT
POOUT
AD IN
ALC
ALC
MIC VOL
ECHO
VOL
MIC
VOL
VOL
VOLUME
CONTROL
VOL1
VOL2
VOL3
4
8
30
Y COM
3Y
0Y
3
4
1
X COM
3X
OX
B A
13
11
12
9 10
EFFECTOR S1
49
EFFECTOR S2
50
EFFECTOR S0
36
A
IC1505
MIXER L/R
7
13
5
3
IC1500
MIXER
1
3
CD-R
IC1501
EFFECTOR R CCT
IC1503
MULTIPLEXER
9
12
11
10
5
3
Q1508
Q1506
Q1502
LPF2OUT
LPF1IN
LPF1OUT
LPF2IN
OP2OUT
OP2IN
CLOCK
A
B
COM
C
+
+
14
3
10 9
11
2
7
BUFFER
Q1509, 1510
: TUNER (FM/AM)
: CD
: TAPE PLAY
: RECORD
: MIC INPUT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
HCD-GNX700/GNX800
30
30
HCD-GNX700/GNX800
7-4. BLOCK DIAGRAM – AMP SECTION –
H
MAIN
SECTION
(Page 29)
MAIN
SECTION
(Page 29)
G
DISPLAY/POWER
SECTION
(Page 31)
J
DISPLAY/POWER
SECTION
(Page 31)
I
MUTING
Q604, 606, 610
F-R
DBFB F/B
F-L
SW OUT
LINE-MUTE
78
70
STK-MUTE
PROT
STK-MUTE
14
13
11
4
3
12
STK MUTE
FAN DET
FAN-CTL
FAN-ON
FAN-K
HI SPEED
OVER LOAD
DETECT
Q668, 618
+
+
+
+
MUTING
Q640, 641
MUTING
CONTROL
Q634,682
F-RELAY
HP-DET
HP-MUTE
FAN-K
100
HD DETT
75
HP-MUTE
77
LINE/SURR-RLY
61
UNDER VOLTAGE DET
60
FAN HI SPEED
76
FR-RELAY
36
FAN KICK-OFF
OVER LOAD
DETECT
Q800, 850
RELAY DRIVE
Q644, 647
H/P DET
F-RELAY
HP-MUTE
+
-
-
+
FRONT SPEAKER
SUB WOOFER
OUT
L
R
PHONES
J1103
RY646
RY665
SYSTEM CONTROLLER
IC401 (4/5)
TM600
+
-
-
+
SURR SPEAKER
L
R
TM601
M
FAN MOTOR
DRIVE
Q580,582,585
DC FAN
M891
GNX800
VL(AC)
TH629
THERMAL
DETECT
Q628, 630
SW MUTE
Q812
MUTE
Q810
Q583, 584
+
68
SW RY/IO-EXP CLK
RY862
E2, E3, E51
TM101
RELAY DRIVE
Q814, 815
6
4
OVER
LOAD
LOAD
DC DET
VP
OCP
CT
OUT
D624
D812
D550
2
1
PROTECT
SWITCH
Q666
Q648
18
11
10
10
9
14
8
-
HI SPEED
SWITCH
Q581
Q506
7
5
• SIGNAL PATH
IC600
POWER AMP
IC550
OVER CURRENT
PROTECTOR
IC800
POWER AMP
: FM
HCD-GNX700/GNX800
31
31
HCD-GNX700/GNX800
7-5. BLOCK DIAGRAM – DISPLAY/ POWER SECTION –
X
MAIN
SECTION
(Page 29)
F
X
AMP
SECTION
(Page 30)
I
X
AMP
SECTION
(Page 30)
J
CD
SECTION
(Page 27)
B
IC561
+9V
REGULATOR
IC560
+9V
REGULATOR
IC562
+3.3V
REGULATOR
IC402
LEVEL
DETECT
FL901
FLUORESCENT
INDICATOR TUBE
9,10, 12 – 22,
24 – 41, 43 – 47
8 – 1, 100 – 96,
92-85
P1 – 36
G1 – 13
G17-24
64 – 66
93–95
BPF4
1
IC904
BPF, RECT
67
68
16
2
15
69
71
48
80
ALL BAND
BPF3
BPF1
IN2
IN1
VKK
SELECTOR
G14-16
G14-16
G1-13,G17-24
13
17
74 VOLUME
ROTARY
ENCODER
S970
MASTER
VOLUME
VOLUME
SPEANA
FAN CTL
P1 – 36
VF1
VF2
VF2
D905
-VG
(-32V)
X901
4MHz
83 XIN
82 XOUT
52– 59,
72,78,79
LED DRIVE
Q908-913,915,
918,919,921
D909, 915, 916, 920, 922,
924, 926, 929, 930,
1017, 1145, 1153
924, 926, 929, 930,
1017, 1145, 1153
D908, 910, 911, 913, 914,
917, 919, 921, 923, 925,
1020
917, 919, 921, 923, 925,
1020
LED+9V
Q905
Q907
Q904
Q906
D927
(R)
D928
(G)
KEY2
|
KEY0
S901 – 906,
1166 - 1170
1166 - 1170
60
I2C DATA
61
I2C CLK
77
RESET
30 IIC-DATA
29 IIC-CLK
IIC-DATA
IIC-CLK
71 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S925
S900
DISPLAY
72 STBY-LED/FAN CTL
4 SIRCS
RESET
X402
16MHz
15 X-IN
13 X-OUT
X401
32.768kHz
10 XC-IN
11 XC-OUT
32
CD-POWER
63
OVER VOLTAGE
IC401 (5/5)
SYSTEM CONTROL
69
STBY-RY
12
RESET
20
AC-CUT
B+ SWITCH
Q560, 561
B+ SWITCH
Q504, 505
OVER VOLTAGE
DETECT
Q550
RECT
D560
D560
M +9V
MT +7V
A +9V
TC +9V
D561 – 563
D660, 661
+3.3V
LED+9V
BIAS+3.3V
D505
POWER
SWITCHING
LED DRIVE
Q903,917
RECT
D658
D658
RECT
D656
D656
+VL
VL(AC)
F1261
VL
VL
VH
VH
VP
VF
VF
AC3
AC4
NC
NC
AC4
AC3
GND
F1271
F1241
F1251
F1281
R1292
–VL
+VH
–VH
– 33V
REGULATOR
Q1264
POWER ON/OFF
RELAY DRIVE
Q1200
– VG
(-32V)
D1292
RECT
VF1
VF2
RY1200
JW1204
JW1234
JW1235
AC IN
T1200
POWER
TRANSFORMER
RESET
SWITCH
Q501
IC903
REMOTE CONTROL
RECEIVER
TO FLUORESCENT
INDICATOR TUBE
FL901
EVER +4V
M+9V
D3.3V
IC902
DISPLAY CONTROL,
KEY CONTROL
BUFFER
Q901,902,914
70 BPF2
14
72 OPERATION DIAL
ROTARY
ENCODER
S1161
OPERATION
DIAL
1
2
S1200
S1200
VOLTAGE
SELECTOR
E2, E3, E51
EXCEPT
AR
AR
AR
AR, AUS
E2, E3, E51
230 – 240V
220V
120V
HCD-GNX700/GNX800
32
32
HCD-GNX700/GNX800
7-6. PRINTED WIRING BOARD – CD BOARD –
• See page 26 for Circuit Boards Location.
Ref. No. Location
IC101
D-8
IC251
C-6
IC301
C-8
IC303
B-8
Q10
E-4
• Semiconductor
Location
: Uses unleaded solder.
C10
C260
C14
C15
C16
C18
C11
R405
C316
R354
R353
R352
R351
R302
R253
C315
R191
R172
R171
R162
R313
X171
R121
R12
R11
R10
Q10
C116
C312
C184
C183
C303
C302
C305
C259
C258
C257
C255
C203
C196
C195
C201
C182
C171
C172
C308
C151
C134
C125
C314
C123
R165
R13
C17
FB301
C318
R201
C174
R173
R205
C209
C210
13
(13)
1-860-502-
CD BOARD (SIDE A)
E
R419
R412
R411
R410
R409
R408
R407
R406
R404
R403
R402
1
R401
R305
R303
R301
R252
JPO103
(TE1)
JPO102
(FE1)
TP117
(VC)
TP124
(RFAC)
R251
R182
R181
R163
R151
R143
R142
R141
R133
R132
R131
R114
R113
R112
R111
R307
C313
C311
C310
C309
C307
C306
IC251
C252
C251
C194
C181
C320
S101
(LIMIT)
(LIMIT)
IC101
C163
C162
C143
C142
C141
C133
C132
C131
C124
C111
C122
C115
C114
C113
C112
IC301
C185
C186
R306
CN101
IC303
CN201
28
22
21
15
1
7
8
14
C317
R203
R161
C161
C211
C212
R204
C213
1
3
4
5
M101
(SPINDLE)
M102
(SLED)
M
M
CD BOARD (SIDE B)
13
(13)
1-860-502-
OPTICAL PICK-UP
BLOCK
(KSM-215DCP)
A
MAIN
BOARD
(Page 36)
16
17
32
49
48
64
1
33
27
2
3
4
5
6
7
8
9
10
A
1
B
C
D
E
F
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