JVC HX GX7 Service Manual
SCHEMATIC DIAGRAMS
COMPACT COMPONENT SYSTEM
HX-GX7
CD-ROM No.SML200403
Area suffix
J ----------------------------- U.S.A.
C -------------------------- Canada
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.
CA-HXGX7 SP-HXGX7SP-HXGX7
2-1
2-2
2-9 to 13
No.MB161SCH
2004/3
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)
Block diagram
CD
PICK UP
REST SW
FEED
MOTOR
SPINDLE
MOTOR
CD tray control section
IC1
TRAY MOTOR DRV.
IC2
POSITION MOTOR DRV.
CD tray switch
section
SW1 to SW6
SWITCH
REC/PB
ERASE
HEAD
M
MOTOR
SPEED Adj.
FW100
MB
Tape deck mechanism control / Pre-amplifier and bias section
CN31
SW1,SW2
SW5,SW6
MIC 2/AUX IN
MIC 1
CD changer mechanism control / CD servo and CD system control section
A,B
C,D
E,F
LD
MD
CN601 CN602
T+/F+/-
SM+/FM+/-
TBAL,FBAL,TE,FE,GCTL,/RFDET
OFT,BDO,ARF,RFENV
IC601
RF & SERVO
AMP.
IC801
FOCUS
TRACKING
FEED
SPINDLE
BTL AMP.
/REST_SW
TR_OP
TR_CL
POS_UP
POS_DOWN
S.TR_ST
/DR_MUTE
PC1,PC2
TRV
TRD
FOD
SPINDLE
CN1
IC671
DRAM
CN251
IC651
DIGITAL SERVO
&
PROCESSOR
AD0 to AD10
D0 to D3
IC682
/DCAS
/CAS
/DRAS
/RAS
IC681
/DWE
/WE
SW8
TXTD,TXTCK
/RST_DSP
MON,FLAG
DQSY,BLKCK
MLD,MDATA
STAT,MCLK
CASCNT
RASCNT
WECNT
CN252 CN253
OUTL,OUTR
TX
MICON
S.TR_END
IC201
EEPROM
E2PSDA
E2PSCL
IC251
UNIT
TXD0
RXD0
RESET
SWITCH
SW7
CN3
REC/PLAY
FREQUENCY
RESPONSE Adj.
BIAS OSC
TR1_CL to TR5_CL
M.TR_OP
AUDIO SIGNAL
PROCESSOR
L301
IC32
Q302,Q305
BIAS OSC/CONT.
IC1
POSITION
SENSOR
RECB
L.SENSOR
PBL,PBR
RECL,RECR
PBMUTE,RECH
IC33
SERIAL TO PARALLEL
SWITCH
CN2
PORT EXTENSION
IC1
REEL
RREC,FREC
PLAY,TAPE
PULSE
PHOTO
PHOTO+B
SWITCH
User control keys section
IC953
MIC AMP.
J900J910
& ALC
IC956
AMP.
User control keys section
JS958,JS960,JS962
SOLENOID
CN42
SOL
IC952
CONPANDER,LPF
& ECHO MIX
ECHO,ECHO
SOUNDMODE+/PRESET+/-,VOL+/-
SOLCTRL
Q375,Q376
SOLENOID
DRIVE
CN32
SOL
D900 to D907
MIC
CN903
MOTOR
Q371,Q372
MOTOR
DRIVE
MB
S900 to S907
SWITCH
REMIN
IC951
REMOCON
RECEIVER
PLAY
PHOTO
KEY1
KEY3LED1 to LED5
ROTARY ENCODER
S908 to S925
KEY1,KEY2,KEY2X
SWITCH
D908 to D912
D1LED to D5LED
D1LED to D5LED
SDATA
SCK
STTA
CN651
CN33CN34
CN900
CN661
DISPD2S
DISPD2D
RESET
CN44
CN43
TDATA
SDATA
TUCLK
TUCE
TUNER
CN1
CN560
TUL,TUR
CDL,CDR
PBL,PBR
IC442
PHYTHM
RECL
RECR
S/TDATA,S/TCLK,SLCCE
SLCPLAY,PHOTO,SLCKEY
FL display
System control
section
G1
G12
CN902
Q950
Q951
D913
STANDBY
LED
External input / Source select switch section
MAINL
MAINR
Q541,Q542
MUTE
Q515 to Q517
SW VOLUME
& MUTE
IC526
HPF
IC534
SWITCH
BOOST
MIX AMP.
IC401
VOLUME
VOLDA
VOLCLK
VOLCE1
AX
REMIN,MIC,ECHO1,ECHO2
KEY1 to KEY4,S/WLED,SMLED
SURRLED,SB1LED,SB2LED
FLDATA,FLCLK,BK,SM+,SMRSEARCH,FSEARCH,BUZZER
D1LED to D5LED,VOL+,VOL-
MICON
DC regulator
Speaker terminal
section
CN802CN803
CN901
DI,BK
CLKB
IC955
INV.
BUZZER
BZ900
IC954
FL DRV.
P1 to P36
G2 to G11
FL900
DISP.
KEY4 KEY2X
FW901 FW902
FW901
FW904
S929
S930
SWITCH
SWITCH
FL1
FL2
+37V
S926
S927
S928
FW900
CN205
37V
Q206
37V
REG.
VH
VH
-VH
D204
D205
D206
FL1
FL2
D207
+/- VH
BRIDGE
S1 S4
CN213 CN214
SWIN
IC485
AMP.
IC466
IC467
LPF &
IC801
9V,M9V
S5V,5.6V
BASS1
BASS2
Q540
SMUTE
SURR
HPMUTE
STATUS
HPSW
PRT
FCTRL
SURROUND
HPMUTE
STATUS
HPSW,PRT
FANCTRL
VL
-VL
D208
D209
D210
D211
+/- VL
BRIDGE
S2
POUT
CN217
CN207
CN511
CN501
Audio
sub woofer
amplifier
output section
9V
IC760
9V
REG.
S4H
FW216
VH,-VH
VL,-VL
S4H
S4H
D212
D213
D214
D215
S4
BRIDGE
CN700
Audio
main amplifier
output section
M9V
IC750
MOTOR
8V
S4H
S5V
B5V
IC660
5V
REG.
S4L
POUT
VH,-VH
VL,-VL
IMP
DC
SWIN
IC700
SW
POWER
AMP.
SWL
SWR
FW218
CN208CN206
VL,-VL,DC
S4H,S4L
SURROUND
HPMUTE
Q230 to Q234
H/P MUTE
HPSW
-VH,DC
PRT
Q220 to Q222
PROTECTOR
Q212
FAN DRV.
CCT
S4H
FANCTRL
IC201
FAN REG.
Primary with main transformer section
S4
F104
FW202FW204
S2
S1
FL1,FL2
F101
F102
5.6V
IC670
5.6V
MICOM
S4H
S4L
POUT
IMP
VL,-VL,DC
SURROUND
ML
MR
SWL
SWR
HPL
HPR
FAN+
FAN-
STATUS
T001
Trans.
CN610CN710
CN600
DC
IC600
MAIN
POWER
AMP.
SPEAKER
TERMINAL
J200
MAIN
SUB WOOFER
CN201
CN202
FAN
F001
MAINL
MAINR
ML
MR
Headphone
jack section
FW711
M
CN200
J1001
AC IN
2-1
Standard schematic diagrams
Primary with main transformer section
FW204
QJK015-082614
CT
S1
(SHEET 2)
FW202
QUM154-21DGZ4
(SHEET 2)
S1
S2
S2
S4CT
S4
S4
FL1
SGND
FL2
S3CT
F104
3.15A-125V
F101
8A-125V
F102
8A-125V
4R7
4R7
R275
R277
T001
QQT0423-001
F001
6.3A-125V
CN200
QGA7901C1-02
C205
0.1
R200
3.3M
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
SHEET 1
DC regulator / Audio output section
J200
QNB0193-002
(SHEET 4)
CN201
QGD2504C1-04Z
HPR
HPL
HPSW
L250
4.7uH
470
R254
!
R255
!
100K
R211
C225
47/50
!
R212
47
D221
MTZJ6.8B-T2
KTC3199/GL/-T
10/25
B2952
B2108
C215
R207
!
D209
!
D208
0.01/100
C216
0.1/250
D210
!
!
D211
C270
1000P
C271
1000P
22K
R231
D229
FAN+
FAN-
STATUS
CN202
QGA2510C1-03
CN214
QGA3901C1-08
CT
S1
S1
S2
S2
S4CT
S4
S4
(SHEET 1)
C208
CN212
QGD2504C1-03Z
SUB5V
ECO
FL1
FL2
S3CT
CN213
(SHEET 1)(SHEET 4)
QGD2504C1-04Z
CN205
QGD2504C1-03Z
37V
0.01/100
R232
D230
D226
0.01/100
1N5402M-20
1N5402M-20
22K
C207
R229
D227
MTZJ5.1B-T2
!
!
C268
1000P
C269
1000P
!
R268
4R7
C264
!
R266
4R7
0.1uF
C260
D261
RY2
!
R262
QSK0109-001
!
R261
!
R260
15K
15K
R230
R236
4.7K
R237
4.7K
R238
4.7K
R239
4.7K
D228
KTC3203/OY/-T
Q212
R226
1K
C232
R228
47K
47/25
10K
R227
!
D213
D212
1N5402M-20
!
D214
D215
1N5402M-20
C209
8200/25
C210
B2612
8200/16
!
R204
47
!
R205
47
!
Q210
R220
270
R223
KRC102M-T
C267
R269
4R7
0.1uF
C265
!
C263
R267
4R7
0.1uF
C261
D260
RY1
!
R265
QSK0109-001
!
R264
!
R263
Q216
1K
KTC3199/GL/-T
R234
!
IC201
KIA7812API
IC200
!
KIA317PI
R221
10
3.3K
R225
2.4K
C237
R224
!
10/50
R222
!
100K
R206
C212
C214
0.01/100
C266
0.1uF
C262
C238
D237
10/50
MTZJ13B-T2
KRA111M-T
C227
(SHEET 3)
!
PRT
HPSW
S12V
LEVEL
HPMUTE
FANSPD
Q234
R250
Q230
2SC3576-JVC-T
4.7K
R251
Q231
2SC3576-JVC-T
4.7K
R252
Q232
2SC3576-JVC-T
4.7K
Q233
R253
2SC3576-JVC-T
4.7K
470
Q215
KTC3200/GL/-T
C235
1K
R233
0.0047
D235
C236
10/16
MTZJ12C-T2
KTC2026/OY/
R213
7.5K
47/100
C229
22/50
D204
0.01/250
!!!
D206
MTZJ15C-T2
!
Q206
C230
0.01
D224
MTZJ18B-T2
C231
D225
MTZJ20B-T2
100K
C218
R209
D205
!
C220
0.1/250
D207
C221
0.01/250
D234
C234
100/25
D231
D220
1N4003S-T5
1N4003S-T5
C226
D222
100/50
D223
C228
Q205
1N4003S-T5
100K
R208
C213
100K
C219
C217
10K
10/50
C240
R240
KTC3199/GL/-T
Q220
R242
100K
R241
10K
Q221
Q222
KTA1267/YG/-T
R214
100K
22/50
EP201
QNZ0136-001Z
KTC3199/GL/-T
R243
100K
C241
D240
47/16
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
FANCTRL
CN207
QGB2510K1-13
FW218
QJK015-111814
CN208
QGA3901C1-11
DGND
PAGND
ML
S4L
-VH
-VL
SWL
SWR
S4H
DC
MR
CN206
VH
VL
QGA3901C1-10
R750
KRA110M-T
ML
SURROUND
DC
MR
-VL
VL
STK412-400
QJK015-101814
FW216
VH
-VH
VL
-VL
PAGND
SWL
SWR
AGND
MTR.GND
!
!
!
R752
R751
Q751
10K
R753
10K
R754
D751
MTZJ5.1B-T2
SURROUND
B2502
IC700
!
KRC102M-T
R600
1K
R603
1K
C611
47/63
C620
0.082
R620
1.2K
!
C622
1/50
R636
D700
R700
MTZJ36B-T2
B7005
!
IC750
KTA1046/Y/
Q750
R755
10K
1K
R756
C750
10/50
Q752
IC600
STK432-070
C600
10/35
C601
220P
220P
47K
C602
R601
47K
220P
C603
R602
C604
10/35
C610
!
10P
R615
56K
R635
10K
20K
R701
10
L601
0.39
R616
C612
C613
MTZJ2.4B-T2
MTZJ15B-T2
R702
C751
0.22/50
D603
C650
D702D703
MTZJ15B-T2
220/16
!
R617
10
0.047
R618 R619
1M 3.9K
0.047
R621
C621
R623
15K
0.33
R703
C712
R731
!
D750
Q604
2SK301/PQ/-T
4.7M
!
D650
820
!
MTZJ10B-T2
MTZJ5.6C-T2
!
D701
47/63
R760
Q602
KTC3199/GL/-T
R624
R622
47K
IC650
PQ05RD21
C651
470/25
R705
0.22
R706
!
10
R704
MTZJ36B-T2
C708 C710 C711 C709
4.7P
!
R729
56K
10
R725
!
C715C714
0.0470.047
!
IC760
KIA7809API
!
R761
C761
C760
10/50
R614
C614
0.022
D601
47K
R625
2.2K
0.22
!
L701
0.39
R721
D760
MTZJ10B-T2
10/50
0.22
R604
!
D600
MTZJ9.1B-T2
!
R609
100
33K
R608
C605
100/50
220
IC660
!
KIA7805API
C660
10/50
D661
C700 C701
220P 220P
R707
R718
1K
R717
0.022 0.022
KTC3199/GL/-T
Q704
D705
47K
KTC3199/GL/-T
5.6K
R724
R723
0.22
R606
R605
0.22
!
!
C607
10/50
10/50
C606
C616
10P 0.022
R626
56K
C615
47/63
C617C618
1.2K
R627
!
1K
R661
C661
10/50
KTC1027/OY/-T
33K
1K
R720R719
1K1K
Q705
L702
D706
47K
R722
5.6K
C609
R607
0.22
220P
!
QGB2510K1-11
QGB2510K1-12
S5V/B5V
CN600
MAINL
AGND
MAINR
DVDPON
5.6V
POUT
IMP
CN700
SWIN
SWGND
DC
POUT
IMP
M9V
9V
Q601
R610
C717C716
100
!
L602
KIA7805API
R711
KTA1267/YG/-T
R613
10K
10K
R612
10
R611
!
R630
C619
0.39
Q603
KTC3199/GL/-T
D602
47K
R631
2.2K 220
R632
R633
82K
R634
100K
!
IC670
1K
R671
C671
D671
D670
220/10
C670
10/50
Q701
R712
10K
10K
C704
C713
0.0470.047
R732
!
MTZJ6.8B-T2
R714
10K
10K
R713
0.1
C705
470P
R710
1K
C718
1/50
47/63
820
KTC3200/GL/-T
Q702
D704
100K
R715
2.2K
KTA1268/GL/-T
Q703
R716
C707
100/10
Q706
KTA1267/YG/-T
R738
100K
0.1
C706
47
47
R734
R733
!
!
C719
10/50
R735
10K
R736
82K
R737
100K
KRC102M-T
Q600
C608
100/50
!
10
R629
!
R628
10
0.0470.047
B6110
D660
MTZJ8.2B-T2
KTA1023/OY/-T
Q700
C702
10/35
56K56K
R708R709
C703
10/35
4.7P
!
R730
56K
10
R726
0.39
!
R728R727
1010
QGB2510J1-11
CN610
MAINL
AGND
MAINR
DVDPON
5.6V
POUT
IMP
DVD.GND
DGND
S5V/B5V
DC
SWIN
SWGND
SWFB
MTR.GND
M9V
AGND
9V
CN710
QGB2510J1-12
FW705
CN511
QGB2510J1-16
(SHEET 3)
(SHEET 3)
SHEET 2
2-3
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