JVC KD-G120, KD-G120R, KD-G123, KD-G124, KD-G125 Diagram
...
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-G120,KD-G120R,KD-G123
KD-G124,KD-G125,KD-G126
KD-G161,KD-G162
CD-ROM No.SML200512
KD-G120RKD-G120
KD-G123 KD-G124
KD-G125 KD-G126
KD-G126
KD-G161 KD-G162
KD-G161
KD-G125
KD-G162
KD-G120,KD-G120R
Area suffix
J ------------- Northern America
KD-G123,KG-G124
Area suffix
UI ---------------------------- India
KD-G125,KD-G126
Area suffix
UT ------------------------- Taiwan
UH ---------------------- Thailand
UN --------------------- Indonesia
U -------------------- Other Areas
KD-G161,KD-G162
Area suffix
E ------------- Southern Europe
EX ------------ Northern Europe
EY ------------- Eastern Europe
EU ------------------------- Turkey
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Contents
Block diagram (For KD-G120,KD-G120R,KD-G123,KD-G124,KD-G125 and KD-G126)
Standard schematic diagrams (For KD-G120,KD-G120R,KD-G123,KD-G124,KD-G125 and KD-G126)
Block diagram (For KD-G161 and KD-G162)
Standard schematic diagrams (For KD-G161 and KD-G162)
Printed circuit boards
COPYRIGHT 2005 Victor Company of Japan, Limited.
2-1
2-3
2-9
2-11
2-17 to 19
No.MA233SCH
2005/12
Safety precaution
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
!
Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.
Difference point
Remote controller
Telephone Muting
KD-G120R
YES
NO
KD-G120,KD-G123,KD-G124,KD-G125,KD-G126
NO
NO
KD-G161,KD-G162
NO
YES
< MEMO >
Block diagram
VF1, VF2, VT1
PICK UP
VT2, LD, MD
(For KD-G120,KD-G120R,KD-G123,KD-G124,KD-G125 and KD-G126)
Main amplifier & CD servo control section
LM,MSM
TRACKING+
TRACKING-
FOCUS &
TRACKING
FOCUS+
FOCUS-
COIL
LOAD&FEED
FEED+
FEED-
MOTOR
POSITION SET
PSW
SWITCH
SPINDLE
SPINDLE+
SPINDLE-
MOTOR
SW1, SW2
SW1, SW2
LCD & Key control section
Only for
KD-G120R
IC661
LCD DRIVER
COM1
COM2
COM3
S1 to S52
LCD1
LCD DISPLAY
IC681
REMOCON
REMOCON
LCD.SCK
LCD.SO
LCD.CE
D630 to D649
D652,D653
LIGHTING
DISPLAY
CN001
S601 to S616
KEY MATRIX
KEY0
KEY1
KEY2
ENC1
ENC2
JS686
ENCODER
CJ601
CN501
CN801
IC541
DRIVER
IC501
RF AMP
KEY0
KEY1
KEY2
LCD.SCK
LCD.SO
LCD.CE
REMOCON
ENC1
ENC2
BTL
SPINDLE+
SPINDLEFEED+
FEEDTRACKING+
TRACKINGFOCUS+
FOCUS-
SW1, SW2, PSW
VF1
VF2
VT1
VT2
MD
LD
TRV,TVD
TRD,FOD
ECM,ECS
KICK
LDON,ARF
BDO,OFTR
RFDET
VDET
FBAL,TBAL
TE,FE
RFENV
IC561
DSP&DAC
OUTL
OUTR
CD.RESET,STATUS
SUBQ,SQCK,TLOCK
FLOCK,CD.SENSE
MLD,MDATA,MCLK
IC151
CD L.P.F.
2-1
26)
K
TU701
FM/AM
TUNER
SD/ST
MONO
SSM,IFC
FM/AM
EO
FMOSC
S.METER
SEEK/STOP
IMIF.COUNT
IC801
MICOM
.MUTE
Q861
MUTING
SDA
SCL
MUTE
TU.L-CH
TU.R-CH
OUTLF, OUTLR
OUTRF, OUTRR
IC301
E.VOLUME
MUTE
RR/SUB.W
RL/SUB.W
Q332, Q432
LINE OUT
IC321
POWER
AMP.
FRONT LEFT (+)
FRONT LEFT (-)
FRONT RIGHT (+)
FRONT RIGHT (-)
REAR LEFT (+)
REAR LEFT (-)
REAR RIGHT (+)
REAR RIGHT (-)
CJ701
ANT
LINE OUT
MICOM
CD.LCH
CD.RCH
EACH BLOCK
IC901
REGULATOR
CN901CJ321
SPK
BATTERY
2-2
8
8
8
2
0
0
Standard schematic diagrams
Main amplifier section
CJ701
QNB0190-001
L701
4.7u
(For KD-G120, KD-G120R, KD-G123, KD-G124,
TU701
QAU0312-002
PSW
SW1
SW2
LM
MSW
CD8V
CD.RESET
STATUS
SUBQ
SQCK
TLOCK
FLOCK
CD.SENSE
TO SHEET 2
MLD
MDATA
MCLK
CD.RCH
GND
CD.LCH
QGZ1601J1-15
TO CJ601
(SHEET 3)
CN801
2SC3928A/R/-X
0.1
0.1
0.1
C821
C822
C823
QTE1H57-255Z
Q731
2SC3928A/R/-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D823
D822
D821
C731
C732
0.001
UDZW6.2B-X
UDZW6.2B-X
D824
D825
R735
1.5k
R736
1.8k
Q732
DETACH
ACC5V
REMOCON
DIMOUT
LCD.SCK
LCD.SO
LCD.CE
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
D826
D827
D828
ENC1
ENC2
KEY0
KEY1
KEY2
0.1
C712
8.2k
R708
22k
R798
KDS4148U-X
R737
0
R843
TELEMUTE
FLOCK
D793
SSM
0
R844
TLOCK
220/10
C720
D794
KDS4148U-X
SEEK/STOP
LCD.CE
LCD.SCK
3.3k
3.3k
R804
R805
CD.SENSE
STATUS
LCD.SO
3.3k
R803
R822
PS2
R201
R101
SD/ST
2.2k
SD/ST
C102
SQCK
10K
R801
R817
4.7k
47k
R818
SSM
REMOCON
R102
SUBQ
DIMMER
FM/AM
MONO
R202
C202
Q701
RT1N141C-X
MONO
ENC2
10K
MICON.MUTE
SEEK/STOP
QTE1H57-105Z
QTE1H57-105Z
C201
C101
ENC1
10K
R837
R838
S.METER
R830
KEY2
R892
1k
47k
R891
D891
D892C891
KDS4148U-X
KDS4148U-X
Q891
RT1N141C-X
TELEMUTE
KDS4148U-X
R834
R832
R820
47k
22k
R831
4.7k
R829
47k
47k
R828
R827
47k
47k
R826
R825
20K
R823
47k
R850
R853
D810
47K
47K
C803
22p
X801
QAX0406-001Z
C804
33p
47k
R836
C807
22k
22k
4.7k
R833
FM.OSC
4.7k
R835
0.1
KEY1
10/16
EO
C
0.
C
IFC
22
C
2
L801
4.7u
VDD
KEY0
R703
1k
R701
1k
0.047
220p
R794
R809
C717
10k
R793
D792
RT1N141C-X
2.2k
R811
R812
10k
47/16
C701
2SA1365/F/-X
KDS4148U-X
Q793
0.1/50
C703
Q791
3.3k
3.3k
22/16
1SS355W-X
1SS355W-X
10
D701
D702
C715
C713
R797
Q792
EO
D803
D805
D802
D804
D801
SUB.W.MUTE
2SA1530A/R/-X
R808
JES01-9D13
D791
KDS4148U-X
1SS355W-X
1SS355W-X
1SS133-T2
1SS133-T2
1SS355W-X
1k
47k
R813
IC801
R733
10k
220/10
D731
MTZJ10B-T2
C733
DETACH
10V
LM
CD.RESET
MCLK
MDATA
MLD
SCL
SDA
R725C725
100
15p
0.022
0.01
C718
C702
C716
R791
10k
12
1k
R792
R795
9V
FM/AM
FM.OSC
R807
47k
R814
47k
R815
47k
47k
R840
47k
R841
0.1/50
10k
0.0012
0.0012
120p
C714
C700
C709
C710
C704
R705
C711
330p
S.METER
FM.IF.COUNT
MSW
SW1
PSW
SW2
2-3
CN702
QGA2006F1-02
D708
UDZW6.2B-X
2.2K
R766
R767
C708
100P
22K
KEY0
124, KD-G125 and KD-G126)
TU.RCH
TU.LCH
RR/SUB.W
LINEOUT.MUTE
RL/SUB.W
R333
D332
R336
KDS4148U-X
D333
R436
KDS4148U-X
R433
R334
1k
2.2k
Q332
KTD1304-X
2.2k
Q432
KTD1304-X
1k
100
R434
100
QNN0519-001
CJ321
IC321
BD3809FS-X
IC301
C312
QTE1C57-106Z
C314
0.01
CD.RCH
CD.LCH
R301
C303
0.0082
MICON.MUTE
EO
SC
C802
0.01
C801
FC
220/6.3
/16
C824
220p
L801
4.7u
VDD
470
R862
D869
KDS4148U-X
Q902
2SC3928A/R/-X
47k
R910
Q903
2SA1530A/R/-X
D867
C304
2.2K
0.22
C302
0.22
0.082
C862
C864
C861
0.082
220/6.3
R861
R909
Q862
D861
KDS4148U-X 470
RT1P141C-X
MTZJ4.7B-T2
27k
68k
220/10
R908
C911
R907
39k
4.7k
R906
SUB.W.MUTE
LINEOUT.MUTE
C852
D903
1SS133-T2
4.7k
100K
R904
R905
KDS4148U-X
D866
RT1P141C-X
Q861
R851
0.01
100/10
0.01
C910
C909
D868
10K
KDS4148U-X
C863
D852
CRS03-W
0.01
100/10
C907
C908
C408
0.082
MUTE
22/16
C905
SDA
R302
33k
C308
4.7/25
4.7/25
D851
CRS03-W
C851
SCL
QTE1A57-107Z
C404 R401
0.22
C402
0.22
47k
R304
10/16
9.1k
4.7k
0.1
R901
C906
R903
R403
100
R404
22/16
C904
47k
RLSUB.W
C313
0.1
C403
2.2k
D405
CRS03-W
RRSUB.W
IC901
R2S25400DS-E
C903
22/16
R405
2.2/50
R307
C334
27k
0.47
C319
100P
C320
100P
R308
C335
27k
0.47
C435
R408
27k
0.47
100P100P
C420C419
10
C331
0.022
C330
C434
R407
27k
C916
L901
0.47
C902
0.01
C901
D901
1N5401-F64
QQR1695-001
R902
1k
0.022
C410
0.01
C915
2.2
R911
47k
C328
D904
D905
C432
0.1
B310
0
CRS30-W
CRS30-W
C340
LR+
C333
0.1
C427
47/16
C321
100/16
RF+
RR+
LR+
LF+
RF-
RR-
LR-
LF-
LF+
LF-
LR-
C317
1/50
C332
0.1
22/16
0.47
C337
C433
1000p
0.1
1/50
C318
C316
RR-
QNZ0611-001
CN901
R321
R322
1/50
C327
0.1
47k
2.7K
QMFZ047-150-T
Q321
R320
RT1N441C-X
MUTE
D321
1SS133-T2
33K
RF-
RR+
RF+
C329
4.7/25
R323
4.7K
0.1
C914
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 1
2-4
68
CD servo control section
FEEDFEED+
PSW
SPINDLESPINDLE+
SW1
SW2
TRACKING-
TRACKING+
FOCUS+
FOCUS-
LD
GND
MD
VR
VF1
VREF
VT1
GND
VT2
VCC
VF2
GND
FEED-
VF2
FEED+
VCC
GND
VT2
SW1
VT1
SW2
VF1
PSW
VR
SPINDLE+
LD
SPINDLEFOCUSVREF
FOCUS+
MD
TRACKING+
TRACKING-
LA6242H-X
CN501
QGB2027M4-22S
R557
150
VR
IC541
FEED-
FEED+
SPINDLE+
SPINDLE-
FOCUS-
VREF
FOCUS+
TRACKING+
TRACKING-
LM
18k
R552
0
R553
VF2
Vcc
VT2
SW1
VT1
SW2
VF1
PSW
LD
MD
C524
VT2
VT1
VF2
VF1
R513
47k
R512
47k
0.033
MSW
ECS
FOD
TVD
TRV
2k
15k
R546
R545
R596
8.2k
C540
68p
2k
R551
51k
R554
C555
0.047
SPINDLE-
SPINDLE+
FEED-
FEED+
C525
0.033
ECM
47k
1.5k
560
R543
R544
R542
C543
0.033
R559
R541
3.3k
6.8k
R558
10k
R550
12k
C557
C556
0.047
0.047
FOCUS+
TRACKING-
FOCUS-
C558
0.047
TRACKING+
0.022
0.022
TBAL
R511
220k
R510
C522
C523
Q541
2SA2093/QR/-T
FBAL
LDON
82k
39K
62K
R503
R516
C545
0.01
C541
47/6.3
330
R540
C542
0.0033
C560
4.7/25
TE
FE
FE
TP
C518
TE
TP
R509
36K
270k
R508
C521
C520
270p
39p
C553
TRD
KICK
5.6k
270k
C559
R548
R547
VDET
C529
0.0012
0.047
220k
R505
C519
0.047
56k
R506
2-5
IC501
AN22002A-W
MD
C502
R501
R502
10/16
22
22
0.1
C501
LD
Q501
R526
2SA2093/QR/-T
C527
12
0.022
C526
C507
0.33
3p
3.9k
R504
R524
3.3k
C504
100/10
R525
1.5k
0.039
0.0027
C510
C509
RF
TP
RFENV
ARF
0.1
C505
C514
C506
68p
0.056
150p
0.0027
C511
C513
BDO
OFTR
RFDET
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