How it Works
JVC
Loading...
KDAR-270
Installation Manual
4 pgs330.38 Kb1
Instructions Manual
136 pgs7.88 Mb0
Schematic
50 pgs4.85 Mb1
Service manual
97 pgs5.42 Mb1
Service Manual
97 pgs9.97 Mb0
User Manual
50 pgs2.52 Mb1
Table of contents
Loading...

JVC KDAR-270, KDG-220, KDG-227, KDG-321, KDG-323 Schematic

...
Download
Page 1
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-AR270,KD-G220,KD-G227
KD-G321,KD-G322,KD-G323 KD-G324,KD-G325,KD-G326
KD-G327
CD-ROM No.SML200512
Area suffix
J ------------- Northern America
KD-G227,KD-G327
Area suffix
EE -------- Russian Federation
KD-G321,KD-G322
Area suffix
E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe EU ------------------------- Turkey
UI ---------------------------- India
UT ------------------------- Taiwan
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
UH ---------------------- Thailand UN --------------------- Indonesia U -------------------- Other Areas
Contents
Block diagram (For KD-AR270,KD-G220,KD-G227,KD-G323,KD-G324,KD-G325,KD-G326) Standard schematic diagrams (For KD-AR270,KD-G220,KD-G323,KD-G324,KD-G325,KD-G326) Standard schematic diagrams (For KD-G227)) Block diagram (For KD-G321,KD-G322,KD-G327) Standard schematic diagrams (For KD-G321,KD-G322) Standard schematic diagrams (For KD-G327) Printed circuit boards
COPYRIGHT 2005 Victor Company of Japan, Limited.
KD-G323,KD-G324
Area suffix
KD-G325,KD-G326
Area suffix
2-1 2-2 2-6 2-10 2-11 2-15 2-19 to 21
No.MA236SCH
2005/12
Page 2
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 ready
Steering remote ready
Power antenna
Telephone Muting
KD-AR270
KD-G220,KD-G227
YES
NO
NO
NO
KD-G321 KD-G322
NO
YES
NO NO
YES YES
KD-G323,KD-G324 KD-G325,KD-G326
NO
YES
NO
KD-G327
YESYES
NO
Page 3
POSITION SET
SWITCH
LOAD&FEED
MOTOR
SPINDLE
MOTOR
SW1, SW2
PICK UP
PSW
SW1, SW2
CN501
IC501
BTL
DRIVER
IC521
DSP
IC581
CD L.P.F.
VF1, VF2 VT1, VT2 MD, LD VREF
TRP FOP SPOUT TRVP
NRST,NPWDOWN STAT,MLD,IRQ MDATA,MCLK
CN701
TU1
FM/AM
TUNER
IC701
CPU
IC161
E.VOLUME
Q341, Q351
LINE OUT
MUTING
Q781
MUTING
DRIVE
IC301
POWER
AMP.
OUTLF, OUTLR OUTRF, OUTRR
CD.L CD.R
FRONT LEFT (+) FRONT LEFT (-) FRONT RIGHT (+) FRONT RIGHT (-) REAR LEFT (+) REAR LEFT (-) REAR RIGHT (+) REAR RIGHT (-)
MUTE
MUTE
LINEOUTMUTE
SW1, SW2, PSW
LM,MSW
FEED+ FEED-
SPINDLE+ SPINDLE-
VF1, VF2, VT1 VT2, LD, MD
SPINDLE+ SPINDLE­FEED+ FEED­TRACKING+ TRACKING­FOCUS+ FOCUS-
OUTL OUTR
LINE OUT
CN001
FOCUS &
TRACKING
COIL
TRACKING+, TRACKING­FOCUS+, FOCUS-
Main amplifier & CD servo control section
CJ601
CN502
CN502
CN503
CN503
KEY0 KEY1 KEY2
IC661
LCD DRIVER
LCD1
LCD DISPLAY
COM1 COM2 COM3 S1 to S52
LCDCLK LCDDA LCDCE
KEY0 KEY1 KEY2 LCDCLK LCDDA LCDCE ENC1 ENC2 REMOCON
LCD & Key control section
L-CH R-CH
RRO RLO
SDA SCL
ANT
J1 J321
IC901
REGULATOR
EACH BLOCK
SPK
BATTERY
CN901
D630 to D649
D652,D653
LIGHTING
DISPLAY
S601 to S616 KEY MATRIX
ENC1 ENC2
JS686
ENCODER
REMOCON
IC681
REMOCON
SD/ST MONO SSM,IFC FM/AM EO FMOSC S.METER SEEK/STOP IFC.COUNT IFC

Block diagram (For KD-AR270,KD-G220,KD-G227,KD-G323,KD-G324,KD-G325,KD-G326)

2-1
Page 4
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R733
C311
R715
R718
Q782
Q31
Q902
X701
C703
C704
J1
R739
R740
IC701
C702
C323
C319
C705
CN901
R907
R732
R745
R712
C901
D301
C351
C96
C341
R729
R736
R315
Q351
R731
R730
C916
C302
C304
C303
C168
R303
R716
D901
IC161
C169
R760
Q783
D783
C164
R748
C163
C310
C309
R717
R166
R167
R177
R176
Q4
C363
R719
Q341
R363
R713
IC901
C178
Q6
C364
R304
D341
R364
R355
R301
C902
R341
R351
L1
C33
CN701
L901
R749
R302
R345
Q32
Q903
R342
D903
R91 R81
C716
TU1
R362
IC301
C362
C711
C331
C321
Q331
Q321
C307
C306
R335
R352
R902
R321
Q5
R331
R325
R322
R332
C783
R31
C301
D351
R704
R703
C316
C179
Q781
R11
C915
Q301
R756
R755
C32
R34
R35
R762
R33
R32
C784
D781
C782
D716
D904
C93
R735
R737
R738
C905
R743
R191
D4
D721
C909
C4
R906
R16
R910
C10
R5
C82
R708
C183
R905
R901
R903
C312
R727
L701
R707
C184
C910
D702
R37
C904
C908
R9
C914
C903
R311
C165
D784
C166
C176
R766
C194
C12
R162
C13
R172
C192
R765
R164
B315
R174
Q1
R13
R1
C6
C191
C701
R361
C83
R14
C1
C313
C361
R10
D6
D701
R3
C919
D905
D907
C8
C2
C3
C9
C7
D782
C81
C91
R909
R709
C31
R92
R82
D706
D906
D1
D2
R908
C314C315
D3
D715
D717
D714
D718
D719
D720
R918
C913
D713
R2
C308
C305
R711
R4
C907
C713
R911
R912
C92
C911
C715
R701
Q2
C906
D703
R751
D704
R753
R754
R752
D712
D711
R705
R706
R710
C781
R742
R12
C98
C175
R36
R6
C11
R741
47k
47k
10k
RT1P141C-X
2SC3928A/QR/-X
2SC3928A/QR/-X
QAX0406-001Z
22p
27p
QNB0190-001
10k
10k
LC723783-9D14
0.01
0.01
0.022
10/16
QNZ0611-001
12K
1K
47k
4.7K
UDZW3.3B-X
100P
0.01
100P
47k
10k
7.5K
KTD1304-X
10K
10K
2.2/50
4.7/25
0.022
0.022
0.47
1k
47k
1N5401-F64
TDA7419-X
0.47
2.2K
RT1P141C-X
1SS355W-X
0.47
47k
0.47
10/16
100/16
47k
RT1N141C-X
0.1
0
KTD1304-X
2.2
4.7K
AN80T71
0.47
2SA1530A/QR/-X
0.1
4.7k
1SS355W-X
2.2
2.2K
0.01
820
820
4.7u
2.2/50
QGZ1601J1-15
QQR0703-001
47k
2.2K
2SC3928A/QR/-X
2SA1530A/QR/-X
100
1SS355W-X
0.1
CRS03-W
QAU0394-003
2.2 0.1
0.1
100P
100P
KTD1304-X
KTD1304-X
QMFZ047-150-T
0.1
0.1
1SS355W-X
2.2K
100
1k
820
2SA1365/F/-X
820
2.2K
100
100
1SS355W-X
0.082
1k
1SS355W-X
47k
47k
0.1
0.47
RT1P141C-X
10k
100/16
2SC3928A/QR/-X
47k
47k
0.001
1k
10k
2.2K
1.5k
1k
0.082
1SS355W-X
47/16
UDZW6.2B-X
CRS03-W
1/50
4.7k
4.7k
4.7k
22/16
47K
0
1SS355W-X
UDZW6.2B-X
100/10
0.022
1K
47k
0.1/50
22k
3.3k
2.2/50
1K
9.1k
4.7k
100P
4.7k
4.7u
47K
2.2/50
0.01
1SS355W-X
0
22/16
100/10
22
0.1
22/16
47K
4.7/25
1SS355W-X
4.7/25
4.7/25
1.2K
10/16
47K
47K
0.01
1.2K
47k
0
47k
RT1N141C-X
10k
100
0.01
100/10
220/6.3
2.2
1/50
2.2k
220p
100P
0.1
22
1SS355W-X
1SS355W-X
10
10/16
CRS03-W
120p
47/16
0.1/50 220/10
0.1/50
UDZW10B-X
27K
3.3k
220/10
1SS355W-X
1SS355W-X
1SS355W-X
27K
100P100P
1SS355W-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
10K
0.22
UDZW6.2B-X
10k
0.1
0.1
10k
10k
0.01
0.1
2.2K
2.2K
220/10
0.1
3.3k
RT1N141C-X
0.1
1SS355W-X
10k
1SS355W-X
10k
10k
10k
UDZW6.2B-X
UDZW6.2B-X
10K
10K
47k
220/6.3
5.1k
1k
0.01
4.7/25
470
8.2k
47k
RF+
EO
SCL
MSW
IRQ
CD_L
KEY1
FLO
PSW
RR+
VDD
IFC
LR+
SW1
5V_LCD_CE
KEY0
RRO
SDA
FRO
SW2
RLO
LM
LF+
DETACH
CD_R
RF-
RR-
LR-
LF-
NPWDOWN
NRST
VOLMUTE
STAT
MLD
KEY2
SUBMUTE
DIMOUT
MDATA
MCLK
ACC5V
REMOCON
LM
5V_LCD_CLK
5V_LCD_DA
KEY0
KEY1
KEY2
NRST
ILL10V
LINEOUTMUTE
FM.OSC
ENC1
ENC2
DIMOUT
SDA
SCL
SD/ST
NPWDOWN
SW2
MONO
PSW
IFC.CONT
REMOCON
FM/AM
ENC1
MUTE
IFC
MONO
SEEK/STOP
S.METER
MUTE
FM/AM
RR-
CD_R
LF+
SD/ST
CD_L
5V_LCD_DA
SUBMUTE
MDATA
FLO
5V_LCD_CLK
RRO
LR+
LF-
LR-
5V_LCD_CE
RF-
DETACH
RLO
RR+
SW1
IFC.CONT
S.METER
ENC2
STAT
MCLK
FM.OSC
MSW
EO
RF+
SEEK/STOP
FRO
LINEOUTMUTE
VOLMUTE
MLD
IRQ
TO SHEET 2
TO CJ601 (SHEET 4)
Standard schematic diagrams
(For KD-AR270, KD-G220, KD-G323, KD-G324, KD-G325, KD-G326)
Main amplifier section
2-2
SHEET 1
Page 5
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R535
X521
ARF
IC521
D501
C534
C529
C530
R529
R528
R527
R526
R525
R530
C544
C543
C546
R558
C542
C541
C540
C539
R531
R532
C532
C531
C525
C526
C528
C524
R540
VREF
R533
R565
R543
R544
R534
R545
R548
R524
R586
R588 R590R584
R589R583
R587
R585
C587
IC981
C588
CN501
R521
R522
R537
C523
C586
C585
IC523
R561
C545
C538
C547
C548
C549
R591
R559
C527
R541
R542
C551
C552
R523
C522
C533
C537
R554
Q521
IC581
C981
R592
R593
C589
R594
C584
C583
C536
C535
R556
C983
C984
C982
R562
C590
C591
C592
10K
QAX0714-001Z
MN6627945EE
1A3G-T1
0.1
8200p
8200p
2.2k
2.2k
2.2k
1K
1K
4.7k
0.082
1000p
220/6.3
82k
0.1
0.015
680p
0.1
4.7k
4.7k
0.33
0.33
0.022
0.022
180P
560P
30K
27k
150
1K
1K
68k
3.3K
3.3K
2.2K
5.6K
27K
0
15k
0
15k 27K
5.6K
150p
NJU7772F15-X
150p
QGB2027M4-22S
1M
220
1.5M
100p
4.7/25
4.7/25
SN74LVC2G07V-X
QGZ2512M1-08
QGZ2512M1-10
1k
0.1 47/6.3
47/6.3
47/6.3
0.1
22k
820
3300p
39K
4.7k
0.1
47/6.3
4.7k
0.22
47/6.3
47/6.3
4.7
2SA1530A/QR/-X
NJM4565E-X
100/6.3
22k
22k
47/6.3
22k
820p
820p
47/6.3
0.1
47K
100/6.3
0.1
0.1
1k
47/6.3
100/16
0.1
GND
FEED-
VF2 FEED+ RFVDD
GND VT2
SW1
VT1 SW2
VF1
PSW
VR
SPINDLE­LD
SPINDLE+ FOCUS-
VREF
FOCUS+ MD
TRACKING+ TRACKING-
FEED­FEED+
SPINDLE+
SW1
SPINDLE-
SW2
PSW
VCC
TRACKING-
TRACKING+
FOCUS+
FOCUS­LD
GND MD
VR VF1
VREF
VT1 GND
VT2
VF2
TO SHEET 1
TO CN503
(SHEET 3)
TO CN502
(SHEET 3)
CD servo control section (1/2)
SHEET 2
2-3
Page 6
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
CN502
CN503
R520
R500
R569
Q501
R507
R508
R509
R510
R511
R513
R515
R517
C505
C506
C518
IC501
C507
C512
C511
C514
C501
C510
C509
R505
R568
C508
R519
R506
C502
R501
R502 R503
R512
C513
R514
C515
R516
C517
R518
C503
C504
QGZ2512M1-10
QGZ2512M1-08
22
22
11k
2SA1705/ST/-T
15k
3.3K
100K
27K
15K
10k
15k
15k
47/16
0.01
68p
LA6242H-X
0.1
0.1
2200p
0.1
220/6.3
0.047
0.047
11k
7.5k
0.047 47k
30k
0.1
8.2k
8.2k 5.1k
5.6K
6800p
5.6k
0.0012
1K
0.0018
5.6K
220/10
0.1
TO SHEET 2
TO SHEET 2
CD servo control section (2/2)
2-4
SHEET 3
Page 7
R601
R664
C661
R687
R688
D643
JS686
S606
IC681
C681
C682
D642
D640
D637
D636
D641
D638D635
D634
D645
C664
R605
D662
IC661
R610
D633
C687
D649
S602
D647
D648
S601
D646
CJ601
R662
R665
C663
C662
R666
R667
R668
S607
S605S604S603
S608S609
S610
S611S612
S613S614S615
D630
R611
D639
R606
R607
R609
R608
R602R603R604
R661
R612
D632
D631
R613
R670
S616
LCD1
B633
D644
R663
D661
R649
R644
R642
R682
R681
R631
R632
R641
R643
R686
R638
R640
C686
R637
R639
D652
R646
R645
D681
R650
R630
D653
R671
Q671
R672
Q670
R635
R636
B636
B635B634
R633
R634
820
10K
10/6.3
47K
47K
QSW0976-001
RPM7338-V4
4.7/6.3
0.012
0.1
2.7k
UDZW5.1B-X
PT6523LQ-L
2.7k
0.022
QGZ1601K1-15S
2.2K
51K
0.022
680p
10K
10K
10K
820
820
820
1.8k
1.2k
8201.2k1.8k
2.2K
820
1.2k
470
0
180K
1SS355W-X
390
10K
470
470
330
470
100
0.022
330
330
NSPW310BS/BRST/
470
UDZW6.2B-X
390
820
SML-310LT/MN/-X
NSPW310BS/BRST/
47K
RT1N141C-X
1K
2SA1365/F/-X
0
00
470
KEY2
KEY2
ENC1
KEY1
ENC2
CE
CLK DATA
REMOCON
5V_LCD_CLK
KEY1
DIMOUT
ILL10V
KEY0
S51
S52
ACC5V
KEY0
5V_LCD_CE
5V_LCD_DA
5V_LCD_CE
5V_LCD_CLK
5V_LCD_DA
INH
S17
S18
OSC
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S49 S50
COM3
COM2
COM1
COM1
S52
S51
S50
DIMOUT
S3S4S5S6S7
S8
S9
S10
S49
S48
S2
S11
S1
S12
COM2
COM3
S47
S46
S4
S3
S13
S14
S15
S16
S45
S44
S43
S42S2S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9S8S7S6S5
S1
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
TO CN701
(SHEET 1)
LCD & Key control section
SHEET 4
2-5
Page 8
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R733
C311
R715
R718
Q782
Q31
Q902
X701
C703
C704
J1
R739
R740
IC701
C702
C323
C783
C705
CN901
R907
R732
R745
R712
C901
D301
C351
C96
C341
R729
R736
R315
Q351
R731
R730
C916
C302
C304
C303
C168
R303
R716
D901
IC161
C169
R760
Q783
D783
C164
R748
C163
C310
R717
R166
R167
R177
R176
Q4
C363
R719
Q341
R363
R713
IC901
C178
Q6
C364
R304
D341
R364
R355
R301
C902
R341
R351
L1
C33
CN701
L901
R749
R302
R345
Q32
Q903
R342
D903
R91 R81
C716
TU1
R362
IC301
C362
C711
C331
C321
Q331
Q321
C307
C306
R335
R352
R902
R321
Q5
R331
R325
R322
R332
R31
C301
D351
R704
R703
C316
C179
Q781
R11
C915
Q301
R756
R755
C32
R34
R35
R762
R33
R32
C784
D781
C782
D716
D904
C93
R735
R737
R738
C905
R743
R191
D4
D721
C909
C4
R906
R16
R910
C10
R5
C82
R708
C183
R905
R901
R903
C312
R727
L701
R707
C184
C910
D702
R37
C904
C908
R9
C914
C903
R311
C165
D784
C166
C176
R766
C194
C12
R162
C13
R172
C192
R765
R164
B315
R174
Q1
R13
R1
C6
C191
C701
R361
C83
R14
C1
C313
C361
R10
D6
D701
R3
C919
D905
D907
C8
C2
C3
C9
C7
D782
C81
C91
R909
R709
C31
R92
R82
D706
D906
D1
D2
R908
C314C315
D3
D715
D717
D714
D718
D719
D720
R918
C913
D713
R2
C308
C305
R711
R4
C907
C713
R911
R912
C92
C911
C715
R701
Q2
C906
D703
R751
D704
R753
R754
R752
D712
D711
R705
R706
R710
C781
R742
R12
C98
C175
R36
R6
C11
R741
47k
22/16
47k
10k
RT1P141C-X
2SC3928A/QR/-X
2SC3928A/QR/-X
QAX0406-001Z
22p
27p
QNB0190-001
10k
10k
LC723783-9D14
0.01
0.01
0.082
10/16
QNZ0611-001
12K
1K
47k
4.7K
2200/16
UDZW3.3B-X
100P
0.01
100P
47k
10k
7.5K
KTD1304-X
10K
10K
2.2/50
4.7/25
0.022
0.022
0.47
1k
47k
1N5401-F64
TDA7419-X
0.47
2.2K
RT1P141C-X
1SS355W-X
0.47
47k
0.47
47/16
47k
27K
27K
27K
27K
RT1N141C-X
0.1
0
KTD1304-X
2.2
4.7K
AN80T71
0.47
2SA1530A/QR/-X
0.1
4.7k
1SS355W-X
2.2
2.2K
1.5k
0.01
820
820
4.7u
2.2/50
QGZ1601J1-15
QQR0703-001
47k
47K
2.2K
2SC3928A/QR/-X
2SA1530A/QR/-X
100
1SS355W-X
2.7K
2.7K
0.1
CRS03-W
QAU0394-003
2.2
LA4743K
0.1
0.1
100P
100P
KTD1304-X
KTD1304-X
QMFZ047-150-T
0.1
0.1
1SS355W-X
2.2K
100
1k
820
2SA1365/F/-X
820
2.2K
100
100
1SS355W-X
1k
3.3/50
1SS355W-X
47k
47k
0.1
0.47
RT1P141C-X
10k
100/16
2SC3928A/QR/-X
47k
47k
0.001
1k
10k
2.2K
1.5k
1k
0.082
1SS355W-X
47/16
UDZW6.2B-X
CRS03-W
1/50
4.7k
4.7k
4.7k
22/16
47K
0
1SS355W-X
UDZW6.2B-X
100/10
0.022
1K
0
47k
0.1/50
22k
0.0056
3.3k
2.2/50
1K
9.1k
4.7k
100P
4.7k
4.7u
47K
2.2/50
0.01
1SS355W-X
0
22/16
100/10
22
0.1
22/16
47K
4.7/25
1SS355W-X
4.7/25
4.7/25
1.2K
10/16
47K
47K
0.01
1.2K
47k
0
47k
RT1N141C-X
10k
100
0.01
100/10
220/6.3
2.2
1/50
2.2k
220p
100P
0.1
22
1SS355W-X
1SS355W-X
10
10/16
CRS03-W
120p
47/16
0.1/50 220/10
0.1/50
UDZW10B-X
0.012
0.012
27K
3.3k
220/10
9.1K
9.1K
1SS355W-X
1SS355W-X
1SS355W-X
27K
100P100P
1SS355W-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
10K
0.22
UDZW6.2B-X
10k
0.1
0.1
10k
10k
0.01
0.1
2.2K
2.2K
0.0056
220/10
0.1
3.3k
RT1N141C-X
0.1
1SS355W-X
10k
1SS355W-X
10k
10k
10k
UDZW6.2B-X
UDZW6.2B-X
10K
10K
47k
220/6.3
5.1k
1k
0.01
4.7/25
470
8.2k
0.01
47k
RF+
EO
SCL
MSW
IRQ
CD_L
KEY1
FLO
PSW
RR+
VDD
IFC
LR+
SW1
5V_LCD_CE
KEY0
RRO
SDA
FRO
SW2
RLO
LM
LF+
DETACH
CD_R
RF-
RR-
LR-
LF-
NPWDOWN
NRST
VOLMUTE
STAT
MLD
KEY2
SUBMUTE
DIMOUT
MDATA
MCLK
ACC5V
REMOCON
LM
5V_LCD_CLK
5V_LCD_DA
KEY0
KEY1
KEY2
NRST
ILL10V
LINEOUTMUTE
FM.OSC
ENC1
ENC2
DIMOUT
SDA
SCL
SD/ST
NPWDOWN
SW2
MONO
PSW
IFC.CONT
REMOCON
FM/AM
ENC1
MUTE
IFC
MONO
SEEK/STOP
S.METER
MUTE
FM/AM
RR-
CD_R
LF+
SD/ST
CD_L
5V_LCD_DA
SUBMUTE
MDATA
FLO
5V_LCD_CLK
RRO
LR+
LF-
LR-
5V_LCD_CE
RF-
DETACH
RLO
RR+
SW1
IFC.CONT
S.METER
ENC2
STAT
MCLK
FM.OSC
MSW
EO
RF+
SEEK/STOP
FRO
LINEOUTMUTE
VOLMUTE
MLD
IRQ
TO SHEET 2
TO CJ601
(SHEET 4)
Standard schematic diagrams
(For KD-G227)
Main amplifier section
2-6
SHEET 1
Page 9
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R535
X521
ARF
IC521
D501
C534
C529
C530
R529
R528
R527
R526
R525
R530
C544
C543
C546
R558
C542
C541
C540
C539
R531
R532
C532
C531
C525
C526
C528
C524
R540
VREF
R533
R565
R543
R544
R534
R545
R548
R524
R586
R588 R590R584
R589R583
R587
R585
C587
IC981
C588
CN501
R521
R522
R537
C523
C586
C585
IC523
R561
C545
C538
C547
C548
C549
R591
R559
C527
R541
R542
C551
C552
R523
C522
C533
C537
R554
Q521
IC581
C981
R592
R593
C589
R594
C584
C583
C536
C535
R556
C983
C984
C982
R562
C590
C591
C592
10K
QAX0714-001Z
MN6627945EE
1A3G-T1
0.1
8200p
8200p
2.2k
2.2k
2.2k
1K
1K
4.7k
0.082
1000p
220/6.3
82k
0.1
0.015
680p
0.1
4.7k
4.7k
0.33
0.33
0.022
0.022
180P
560P
30K
27k
150
1K
1K
68k
3.3K
3.3K
2.2K
5.6K
27K
0
15k
0
15k
27K
5.6K
150p
NJU7772F15-X
150p
QGB2027M4-22S
1M
220
1.5M
100p
4.7/25
4.7/25
SN74LVC2G07V-X
QGZ2512M1-08
QGZ2512M1-10
1k
0.1
47/6.3
47/6.3
47/6.3
0.1
22k
820
3300p
39K
4.7k
0.1
47/6.3
4.7k
0.22
47/6.3
47/6.3
4.7
2SA1530A/QR/-X
NJM4565E-X
100/6.3
22k
22k
47/6.3
22k
820p
820p
47/6.3
0.1
47K
100/6.3
0.1
0.1
1k
47/6.3
100/16
0.1
GND
FEED-
VF2 FEED+ RFVDD
GND VT2
SW1
VT1 SW2
VF1 PSW
VR
SPINDLE­LD
SPINDLE+ FOCUS-
VREF
FOCUS+ MD
TRACKING+
TRACKING-
FEED­FEED+
SPINDLE+
SW1
SPINDLE-
SW2
PSW
VCC
TRACKING-
TRACKING+ FOCUS+
FOCUS­LD
GND MD
VR VF1
VREF
VT1 GND
VT2
VF2
TO SHEET 1
TO CN503
(SHEET 3)
TO CN502
(SHEET 3)
CD servo control section (1/2)
SHEET 2
2-7
Page 10
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
CN502
CN503
R520
R500
R569
Q501
R507
R508
R509
R510
R511
R513
R515
R517
C505
C506
C518
IC501
C507
C512
C511
C514
C501
C510
C509
R505
R568
C508
R519
R506
C502
R501
R502
R503
R512
C513
R514
C515
R516
C517
R518
C503
C504
QGZ2512M1-10
QGZ2512M1-08
22
22
11k
2SA1705/ST/-T
15k
3.3K
100K
27K
15K
10k
15k
15k
47/16
0.01
68p
LA6242H-X
0.1
0.1
2200p
0.1
220/6.3
0.047
0.047
11k
7.5k
0.047 47k
30k
0.1
8.2k
8.2k 5.1k
5.6K
6800p
5.6k
0.0012
1K
0.0018
5.6K
220/10
0.1
TO SHEET 2
TO SHEET 2
CD servo control section (2/2)
2-8
SHEET 3
Page 11
R601
R664
C661
R687
R688
D643
JS686
S606
IC681
C681
C682
D642
D640
D637
D636
D641
D638D635
D634
D645
C664
R605
D662
IC661
R610
D633
C687
D649
S602
D647
D648
S601
D646
CJ601
R662
R665
C663
C662
R666
R667
R668
S607
S605S604S603
S608S609
S610
S611S612
S613S614S615
D630
R611
D639
R606
R607
R609
R608
R602R603R604
R661
R612
D632
D631
R613
R670
S616
LCD1
B633
D644
R663
D661
R649
R644
R642
R682
R681
R631
R632
R641
R643
R686
R638
R640
C686
R637
R639
D652
R646
R645
D681
R650
R630
D653
R671
Q671
R672
Q670
R635
R636
B636
B635B634
R633
R634
820
10K
10/6.3
47K
47K
QSW0976-001
RPM7338-V4
4.7/6.3
0.012
0.1
2.7k
UDZW5.1B-X
PT6523LQ-L
2.7k
0.022
QGZ1601K1-15S
2.2K
51K
0.022
680p
10K
10K
10K
820
820
820
1.8k
1.2k
8201.2k1.8k
2.2K
820
1.2k
470
QLD0402-001
180K
1SS355W-X
390
10K
470
470
330
470
100
0.022
330
330
NSPW310BS/BRST/
470
UDZW6.2B-X
390
820
SML-310LT/MN/-X
NSPW310BS/BRST/
47K
RT1N141C-X
1K
2SA1365/F/-X
560
0
00
1.2K
1.5K
KEY2
KEY2
ENC1
KEY1
ENC2
CE
CLK DATA
REMOCON
5V_LCD_CLK
KEY1
DIMOUT
ILL10V
KEY0
S51
S52
ACC5V
KEY0
5V_LCD_CE
5V_LCD_DA
5V_LCD_CE
5V_LCD_CLK
5V_LCD_DA
INH
S17
S18
OSC
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S49 S50
COM3
COM2
COM1
COM1
S52
S51
S50
DIMOUT
S3S4S5S6S7
S8
S9
S10
S49
S48
S2
S11
S1
S12
COM2
COM3
S47
S46
S4
S3
S13
S14
S15
S16
S45
S44
S43
S42S2S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10S9S8
S7S6S5
S1
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
TO CN701
(SHEET 1)
LCD & Key control section
SHEET 4
2-9
Page 12
POSITION SET
SWITCH
LOAD&FEED
MOTOR
SPINDLE
MOTOR
SW1, SW2
PICK UP
PSW
SW1, SW2
CN501
IC501
BTL
DRIVER
IC521
DSP
IC581
CD L.P.F.
IC775
RESET
VF1, VF2 VT1, VT2 MD, LD VREF
TRP FOP SPOUT TRVP
NPWDOWN NRST,IRQ STAT,MLD MDATA,MCLK
CN701
TU1
FM/AM
TUNER
IC701
CPU
IC171
E.VOLUME
Q341, Q351
LINE OUT
MUTING
Q781
MUTING
DRIVE
IC301
POWER
AMP.
OUTLF, OUTLR OUTRF, OUTRR
CD.L CD.R
FRONT LEFT (+) FRONT LEFT (-) FRONT RIGHT (+) FRONT RIGHT (-) REAR LEFT (+) REAR LEFT (-) REAR RIGHT (+) REAR RIGHT (-)
MUTE
STEERING
STEERING REMOTE CABLE
FSU SSTOP TUSDA TUSCL Q.OUT
MUTE
MUTE.CONT
SW1, SW2, PSW
LM,MSW
FEED+ FEED-
SPINDLE+ SPINDLE-
VF1, VF2, VT1 VT2, LD, MD
SPINDLE+ SPINDLE­FEED+ FEED­TRACKING+ TRACKING­FOCUS+ FOCUS-
OUTL OUTR
LINE OUT
CN001
FOCUS &
TRACKING
COIL
TRACKING+, TRACKING­FOCUS+, FOCUS-
Main amplifier & CD servo control section
CN502
CN502
CN503
CN503
TU_L TU_R
RRO RLO
VSDA VSCL
ANT
J1 J321
IC901
REGULATOR
EACH BLOCK
SPK BATTERY
CN901 CN761
CJ601
KEY0 KEY1 KEY2
IC661
LCD DRIVER
LCD1
LCD DISPLAY
COM1 COM2 COM3 S1 to S52
LCDCLK LCDDA LCDCE
KEY0 KEY1 KEY2 LCDCLK LCDDA LCDCE ENC1 ENC2 REMOCON
LCD & Key control section
D630 to D649
D652,D653
LIGHTING
DISPLAY
S601 to S616 KEY MATRIX
JS686
ENCODER
ENC1 ENC2
REMOCON
IC681
REMOCON
For KD-G327
For KD-G321 and KD-G322

Block diagram (For KD-G321,KD-G322,KD-G327)

2-10
Page 13
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R726
R743
C783
Q782
C714
R181
C5
C701
C702
J1
D971
C82
CN761
C325
TP2
R325
R77
X702
C326
R732
CN901
R906
R746
R745
R758
R747
R765
R905
C901
D301
C351
R748
L701
R892
R742
C341
R737
R326
Q351
TP5
C302
C304
C303
C193
R303
R728
D901
TP6
C192
R78
R708
C8
C310
C179
L2
R702
R755
R191
R738
R171
R172
R193
R192
R182
R183
R306
R311
R76
R733
R734
TU1
Q341
C321
IC901
R305
C183
R304
D341
C92
R355
R301
C902
C317
D972
C318
R341
R351
L1
CN701
L901
B315
R302
R345
D782
C322
R761
R342
D903
R81
R91
X701
J321
C94
C84
IC301
R744
R2
C711
C712
C308
C307
C306
R74
C323
R352
R323
C324
R324
X71
R71
R766
R72
R767
R307
B6
C301
R310
R759 R760
D351
C891
R891
R739
D776
C316
S775
C182
R777
Q781
Q301
C169
R162
R161
Q911
R1
R762
IC701
R735
D722
C718
R719
R721
R736
R741
R740
R729
IC775
TP1
R775
R776
IC771
C771
IC801
R808
R807
R803
R804
R805
R806
R810
R809
R801
C801
C802
J801
R730
C705
D716
C85
R757
C911
C905
D781
D721
C909
C320
C319
R911
R712
R901R903
C312
C181
C910
R714
R716
TP3
TP4
R710
R713
C916
C904
C908
R82
C971
C903
R717
C919
C176
C175
C174
C719
C9
C6
C191
C188
R3
R754
R173
R176
R175
C311
C703
R711
C160
C3
C709
C704
Q912
C173
C163
IC171
C78
C313
C706
C168
C178
R4
R92
C782
C7
C2
Q74
C781
R709
C81
C91
C189
D3
C1
IC71
D1
D2
R912
C314
C315
D715
D717
D714
D718
D719
D720
C707
C83
D713
C93
C708
C305
C710
R902
C907
C713
R971
R972
C72
C76
C71
C75
C74
R73
C73
C172
C162
R75
C77
C177
D891
D892
R751
D712
D711
Q891
R166
R165
C915
R731
C4
R163
C167
C166
C165
C164
R753
R749
R750
R752
R724
R723
R722
R701
R707
R720
R727
R725
R756
C776
C775
D775
R771
R772
R802
R718
47k
100k
0.082
RT1P141C-X
0.1
47k
0.1
27p
27p
QNB0190-001
CRS03-W
1/50
QGA2006F1-02
0.1
2.2
2K
0.1
47k
QNZ0611-001
1K
220
220
47k
220
47k
1K
QEZ0769-278
UDZS3.3B-X
100P
220
4.7u
47k
2.7K
100P
2.7K
2.2
KTD1304-X
4.7/25
0.022
0.022
QFV91HJ-474Z
1k
47k
1N5401-F64
QFV91HJ-474Z
0
47k
0.1
10/16
4.7/25
0.22u
47k
47k
47k
47k
39k
4.7k 0
0
0
0
QMFZ047-150-T
1k
100
0
2.2k
22K
QAU0443-001
KTD1304-X
QFV91HJ-474Z
AN80T71
0
QFV91HJ-474Z
4.7k
1S S355W-X
QAM0682-001
1/50
2.2K
1K
0.01
1/50
CRS03-W
1/50
820
820
4.7u
QGZ1601J1-15
QQR0703-001
0
47K
2.2K
UDZW11B-X
0.01
47k
100
1SS355W-X
15K
15K
QAX0667-001Z
QNN0773-001
1/50
1/50
LA47201
10k
8.2
0.1
0.1
0.1
0.1
0.1
100
0.1
100
2.2
0.1
2.2
QAX0263-001Z
2.2K
47k
0
47k
7.5K
0
0.22/50
47K
47k
47k
1SS355W-X
0.1
1k
47k
UDZW5.6B-X
0.1
QSW1049-001Z
QFV91HJ-474Z
100
RT1P141C-X
2SC3928A/QR/-X
4.7/25
4.7k
39k
2SA1530A/QR/-X
8.2
4.3k
MN101C49KST
2.2k
UDZW6.2B-X
100P
47k
47k
47k
100K
10k
10k
S-80833CNNB-G-W
47k
2.2k
BR24L16F-W-X
0.047
SN74AHCT126PW-X
330
20K
100
20K
0
10k
100
22k
47k
0.047
0.01
QNZ0095-001
10k
0.1
UDZW6.2B-X
0.22
47k
0.1
22/16
QAX0401-001
1SS355W-X
UDZW6.2B-X
100/10
0.022
0.022
12K
4.7k
9.1k4.7k
100P
4.7/25
0.01
4.7k
0
4.7k
10k
2.2/50
22/16
100/10
6.8K
0.1
22/16
0
100/6.3
0.0047
470p 0.15
220/6.3
2p
0.1
4.7/25
100/10
3.3K
10K
2.2k
30k
30k
1/50
27p
10k
10/16
0.1
220/6.3
27p
RT1N141C-X
22/16
22/16
NJW1192V-X
0.01
100P
0.1
4.7/25
4.7/25
10K
6.8K
2.2/50
0.1
47/6.3
RT1N141C-X
220/10
10k
0.012
0.012
0.01
220/10
LC72725NM-X
1SS355W-X
1SS355W-X
27K
100P
100P
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
47p
UDZW6.2B-X
0.1
0.1
0.1
1k
0.01
0.1
2.2K
2.2K
330P
0.01
560p
33P
33P
2.2k
10/16
1/50
1/50
2K
47/6.3
0.1
1SS355W-X
1SS355W-X
4.7K
UDZW6.2B-X
UDZW6.2B-X
RT1N141C-X
30k
30k
10/16
100K
0.1
2.2k
0.1
0.0047
0.15 470p
10k
4.7K
4.7K
10k
10k
47K
47K
1K
1K
2.2k
10k
10k
10k
47/6.3
0.01
1SS355W-X
270
270
0
2.2k
SW1
RF+
POWER
RDSDA
PSW
CDON
PS2
INT
VSDA
REMOCON
RLO
DIMOUT
MSW
RR+
CD_R
VSDA
CD_L
MCLK
LR+
TU_R
PSW
VSCL
TU_L
LCDCE
RDSDA
RRO
CD_L
IRQ
LF+
DETACH
CD_R
RDSCL
RF-
RR-
LR-
LF-
LM
SW1
AFS
MCLK
MDATA
VSCL
POWER
MLD
NPWDOWN
STAT
STAT
SW2
NRST
SW2
MDATA
STEERING
LCDCE
MLD
REMOCON
PS2
LCDCLK
LCDDA
KEY0
KEY1
KEY2
CH_R
DETACH
STEERING
TUSDA
TUSCL
ENC1
ENC2
DIMOUT
INT
IRQ
RDSCL
SI
CH_L
I/O
SO
SCK
NRST
AGND
AFS
KEY0
Q_OUT
KEY2
KEY1
RRO
MUTE
LCDDA
CH_L
LR-
FSU
LF+
RF-
SSTOP
TUSDA
TUSCL
RR+
Q_OUT
RR-
SO
RLO
CH_R
LF-
SI
CDON
FSU
SCK
LCDCLK
NPWDOWN
LR+
RF+
ENC1
SSTOP
ENC2
MUTE
ERCLK
ERDI
I/O
ERDI
ERCLK
LM
MSW
TO SHEET 2
TO CJ601
(SHEET 4)
Standard schematic diagrams
(For KD-G321, KD-G322)
Main amplifier section
SHEET 1
2-11
Page 14
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R535
X521
ARF
IC521
D501
R538
C534
R539
R566
R529
R528
R527
R526
R525
C521
R530
R586
R588
C529
C544
C543
R590
C546
R558
C542
C541
C540
C539
R584
R531
R532
R589R583
C532
R587
R585
C587
C531
C525
C526
C528
C524
R540
C588
C586
C585
VREF
R533
R565
C530
R543
R544
R534
R545
R548
R524
IC981
CN501
R521
R522
R537
C523
IC523
CN503
CN502
R561
R591
C545
C538
C547
C548
C549
IC581
R559
R593
R594
R592
C584
C583
C527
R541
R542
C551
C552
C590
R523
C591
C592
C522
C533
C537
R554
Q521
C981
C536
C535
R556
C983
C984
C982
R562
10K
QAX0714-001Z
MN6627945EE
1A3G-T1
0
0.0033
0
10
2.2k
2.2k
2.2k
1K
1K
0.1
4.7k
10K
30K
8200P
0.082
1000p
1.5K
220/6.3
82k
0.1
0.015
680p
0.1
15k
4.7k
4.7k
1.5K
15k
0.33
30K
10K
100P
0.33
0.022
0.022
180P
560P
30K
100P
QTE1H54-225Z
QTE1H54-225Z
27k
150
8200P
1K
1K
68k
3.3K
3.3K
2.2K
NJU7772F15-X
QGB2027M4-22S
1M
220
1.5M
100p
SN74LVC2G07V-X
QGZ2512M1-08
QGZ2512M1-10
1k
10k
0.1
47/6.3
47/6.3
47/6.3
0.1
NJM4565E-X
820
100k
100k
10k
820p
820p
3300p
39K
4.7k
0.1
47/6.3
QTE0J57-476Z
4.7k
QTE1A57-107Z
0.1
0.22
47/6.3
47/6.3
4.7
2SA1530A/QR/-X
100/6.3
47/6.3
0.1
47K
100/6.3
0.1
0.1
1k
GND
FEED-
VF2 FEED+ RFVDD
GND VT2
SW1
VT1 SW2
VF1 PSW
VR
SPINDLE­LD
SPINDLE+ FOCUS-
VREF
FOCUS+ MD
TRACKING+ TRACKING-
FEED­FEED+
SPINDLE+
SW1
SPINDLE-
SW2
PSW
VCC
TRACKING-
TRACKING+
FOCUS+
FOCUS­LD
GND MD
VR VF1
VREF
VT1 GND
VT2
VF2
TO SHEET 1
TO CN503
(SHEET 3)
TO CN502
(SHEET 3)
CD servo control section (1/2)
2-12
SHEET 2
Page 15
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
IC501
CN502
CN503
R520
R500
R569
Q501
R507
R508
R509
R510
R511
R513
R515
R517
C505
C506
C518
C507
C512
C511
C514
C501
C510
C509
R505
R568
C508
R519
R506
C502
R501
R502 R503
R512
C513
R514
C515
R516
C517
R518
C503
C504
LA6242H-X
QGZ2512M1-10
QGZ2512M1-08
22
22
11k
2SA1705/ST/-T
15k
3.3K
100K
27K
15K
10k
15k
15k
47/16
0.01
68p
0.1
0.1
2200p
0.1
220/6.3
0.047
0.047
11k
7.5k
0.047 47k
30k
0.1
8.2k
8.2k 5.1k
5.6K
6800p
5.6k
0.0012
1K
0.0018
5.6K
220/10
0.1
TO SHEET 2
TO SHEET 2
CD servo control section (2/2)
SHEET 3
2-13
Page 16
LCD & Key control section
R601
R664
C661
R687
R688
D643
JS686
S606
IC681
C681
C682
D642
D640
D637
D636
D641
D638D635
D634
D645
C664
R605
D662
IC661
R610
D633
C687
D649
S602
D647
D648
S601
D646
CJ601
R662
R665
C663
C662
R666
R667
R668
S607
S605S604S603
S608S609
S610
S611S612
S613S614S615
D630
R611
D639
R606
R607
R609
R608
R602R603R604
R661
R612
D632
D631
R613
R670
S616
LCD1
B633
D644
R663
D661
R649
R644
R642
R682
R681
R631
R632
R641
R643
R686
R638
R640
C686
R637
R639
D652
R646
R645
D681
R650
R630
D653
R671
Q671
R672
Q670
R635
R636
B636
B635B634
R633
R634
820
10K
10/6.3
47K
47K
QSW0976-001
RPM7338-V4
4.7/6.3
0.012
0.1
2.7k
UDZW5.1B-X
PT6523LQ-L
2.7k
0.022
QGZ1601K1-15S
2.2K
51K
0.022
680p
10K
10K
10K
820
820
820
1.8k
1.2k
8201.2k1.8k
2.2K
820
1.2k
470
QLD0419-001
0
180K
1SS355W-X
390
10K
470
470
330
470
100
0.022
330
330
NSPW310BS/BRST/
470
UDZW6.2B-X
390
820
SML-310LT/MN/-X
NSPW310BS/BRST/
47K
RT1N141C-X
1K
2SA1365/F/-X
0
00
KEY2
KEY2
ENC1
KEY1
ENC2
CE
CLK DATA
REMOCON
LCDCLK
KEY1
DIMOUT
ILL10V
KEY0
S51
S52
ACC5V
KEY0
LCDCE
LCDDA
LCDCE
LCDCLK
LCDDA
INH
S17
S18
OSC
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S49 S50
COM3
COM2
COM1
COM1
S52
S51
S50
DIMOUT
S3S4S5S6S7
S8
S9
S10
S49
S48
S2
S11
S1
S12
COM2
COM3
S47
S46
S4
S3
S13
S14
S15
S16
S45
S44
S43
S42S2S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10S9S8S7S6
S5
S1
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
TO CN701
(SHEET 1)
2-14
SHEET 4
Page 17
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R726
R743
C783
Q782
C714
R181
C5
C701
C702
J1
D971
C82
CN761
C325
TP2
R325
R77
X702
C326
C319
R732
CN901
R906
R746
R745
R758
R747
R765
R905
C901
D301
C351
R748
L701
R892
R742
C341
R737
R326
Q351
TP5
C302
C304
C303
C193
R303
R728
D901
TP6
C192
R78
R708
C8
C310
C179
L2
R702
R755
R191
R738
R171
R172
R193
R192
R182
R183
R306
R311
R76
C311
R733
R734
TU1
Q341
C321
IC901
R305
C183
R304
D341
C92
R355
R301
C902
C317
D972
C318
R341
R351
L1
CN701
L901
B315
R302
R345
D782
C322
R761
R342
D903
R81
R91
X701
J321
C94
C84
IC301
R744
R2
C711 C712
C308
C307
C306
R74
C323
R352
R323
C324
R324
X71
R71
R766
R72
R767
R307
B6
C301
R310
R759
R760
D351
C891
R891
R739
D776
C316
S775
C182
R777
Q781
Q301
C169
R162
R161
Q911
R1
R762
IC701
R735
D722
C718
R719
R721
R736
R741
R740
R729
IC775
TP1
R775
R776
IC771
C771
IC801
R808
R807
R803
R804
R805
R806
R810
R809
R801
C801
C802
J801
R730
C705
D716
C85
R757
C911
C905
D781
D721
C909
C320
R911
R712
R901R903
C312
C181
C910
R714
R716
TP3
TP4
R710
R713
C916
C904
C908
R82
C971
C903
R717
C919
C176
C175
C174
C719
C9
C6
C191
C188
R3
R754
R173
R176
R175
C703
R711
C160
C3
C709
C704
Q912
C173
C163
IC171
C78
C313
C706
C168
C178
R4
R92
C782
C7
C2
Q74
C781
R709
C81
C91
C189
D3
C1
IC71
D1
D2
R912
C314C315
D715
D717
D714
D718
D719
D720
C707
C83
D713
C93
C708
C305
C710
R902
C907
C713
R971
R972
C72
C76
C71
C75
C74
R73
C73
C172
C162
R75
C77
C177
D891
D892
R751
D712
D711
Q891
R166
R165
C915
R731
C4
R163
C167
C166
C165
C164
R753
R749
R750
R752
R724
R723
R722
R701
R707
R720
R727
R725
R756
C776
C775
D775
R771
R772
R802
R718
47k
100k
0.082
RT1P141C-X
0.1
47k
0.1
27p
27p
QNB0190-001
CRS03-W
1/50
QGA2006F1-02
0.1
2.2
2K
0.1
0.022
47k
QNZ0611-001
1K
220
220
47k
220
47k
1K
QEZ0769-278
UDZS3.3B-X
100P
220
4.7u
47k
2.7K
100P
2.7K
2.2
KTD1304-X
4.7/25
0.022
0.022
QFV91HJ-474Z
1k
47k
1N5401-F64
QFV91HJ-474Z
0
47k
0.1
10/16
4.7/25
0.22u
47k
47k
47k
47k
39k
4.7k
0
0
0
0
QMFZ047-150-T
1k
100
0
1/50
2.2k
22K
QAU0453-001
KTD1304-X
QFV91HJ-474Z
AN80T71
0
QFV91HJ-474Z
4.7k
1S S355W-X
QAM0682-001
1/50
2.2K
1K
0.01
1/50
CRS03-W
1/50
820
820
4.7u
QGZ1601J1-15
QQR0703-001
0
47K
2.2K
UDZW11B-X
0.01
47k
100
1SS355W-X
15K
15K
QAX0667-001Z
QNN0773-001
1/50
1/50
LA47201
10k
8.2
0.1 0.1
0.1
0.1
0.1
100
0.1
100
2.2
0.1
2.2
QAX0263-001Z
2.2K
47k
0
47k
7.5K
0
0.22/50
47K
47k 47k
1SS355W-X
0.1
1k
47k
UDZW5.6B-X
0.1
QSW1049-001Z
QFV91HJ-474Z
100
RT1P141C-X
2SC3928A/QR/-X
4.7/25
4.7k
39k
2SA1530A/QR/-X
8.2
4.3k
MN101C49KST
2.2k
UDZW6.2B-X
100P
47k
47k
47k
100K
10k
10k
S-80833CNNB-G-W
47k
2.2k
BR24L16F-W-X
0.047
SN74AHCT126PW-X
330
20K
100
20K
0
10k
100
22k
47k
0.047
0.01
QNZ0095-001
10k
0.1
UDZW6.2B-X
0.22
47k
0.1
22/16
QAX0401-001
1SS355W-X
UDZW6.2B-X
100/10
0.022
12K
4.7k
9.1k
4.7k
100P
4.7/25
0.01
4.7k
0
4.7k
10k
2.2/50
22/16
100/10
6.8K
0.1
22/16
0
100/6.3
0.0047
470p 0.15
220/6.3
2p
0.1
4.7/25
100/10
3.3K
10K
2.2k
30k
30k
27p
10k
10/16
0.1
220/6.3
27p
RT1N141C-X
22/16
22/16
NJW1192V-X
0.01
100P
0.1
4.7/25
4.7/25
10K
6.8K
2.2/50
0.1
47/6.3
RT1N141C-X
220/10
10k
0.012
0.012
0.01
220/10
LC72725NM-X
1SS355W-X
1SS355W-X
27K
100P100P
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
UDZW6.2B-X
47p
UDZW6.2B-X
0.1
0.1
0.1
1k
0.01
0.1
2.2K
2.2K
330P
0.01
560p
33P
33P
2.2k
10/16
1/50
1/50
2K
47/6.3
0.1
1SS355W-X
1SS355W-X
4.7K
UDZW6.2B-X
UDZW6.2B-X
RT1N141C-X
30k
30k
10/16
100K
0.1
2.2k
0.1
0.0047
0.15 470p
10k
4.7K
4.7K
10k
10k
47K
47K
1K
1K
2.2k
10k
10k
10k
47/6.3
0.01
1SS355W-X
270
270
0
2.2k
SW1
RF+
POWER
RDSDA
PSW
CDON
PS2
INT
VSDA
REMOCON
RLO
MSW
RR+
CD_R
VSDA
CD_L
MCLK
LR+
TU_R
PSW
VSCL
DIMOUT
TU_L
LCDCE
RDSDA
RRO
CD_L
IRQ
LF+
DETACH
CD_R
RDSCL
RF-
RR-
LR-
LF-
LM
SW1
AFS
MCLK
MDATA
VSCL
POWER
MLD
NPWDOWN
STAT
STAT
SW2
NRST
SW2
MDATA
STEERING
LCDCE
MLD
REMOCON
PS2
LCDCLK
LCDDA
KEY0
KEY1
KEY2
CH_R
DETACH
STEERING
TUSDA
TUSCL
ENC1
ENC2
DIMOUT
INT
IRQ
RDSCL
SI
CH_L
I/O
SO
SCK
NRST
AGND
AFS
KEY0
Q_OUT
KEY2
KEY1
LF+
RRO
MUTE
LCDDA
CH_L
LR+
LF-
FSU
LR-
RF-
SSTOP
TUSDA
TUSCL
RR+
Q_OUT
RR-
SO
RLO
CH_R
SI
CDON
FSU
SCK
LCDCLK
NPWDOWN
RF+
ENC1
SSTOP
ENC2
MUTE
ERCLK
ERDI
I/O
ERDI
ERCLK
LM
MSW
TO SHEET 2
TO CJ601
(SHEET 4)
Standard schematic diagrams
(For KD-G327)
Main amplifier section
SHEET 1
2-15
Page 18
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
R535
X521
ARF
IC521
D501
R538
C534
R539
R566
R529
R528
R527
R526
R525
C521
R530
R586
R588
C529
C544
C543
R590
C546
R558
C542
C541
C540
C539
R584
R531
R532
R589R583
C532
R587
R585 C587
C531
C525
C526
C528
C524
R540
C588
C586
C585
VREF
R533
R565
C530
R543
R544
R534
R545
R548
R524
IC981
CN501
R521
R522
R537
C523
IC523
CN503
CN502
R561
R591
C545
C538
C547
C548
C549
IC581
R559
R593R594
R592
C584
C583
C527
R541
R542
C551
C552
C590
R523
C591
C592
C522
C533
C537
R554
Q521
C981
C536
C535
R556
C983
C984
C982
R562
10K
QAX0714-001Z
MN6627945EE
1A3G-T1
0
0.0033
0
10
2.2k
2.2k
2.2k
1K
1K
0.1
4.7k
10K
30K
8200P
0.082
1000p
1.5K
220/6.3
82k
0.1
0.015
680p
0.1
15k
4.7k
4.7k
1.5K
15k
0.33
30K
10K
100P
0.33
0.022
0.022
180P
560P
30K
100P
QTE1H54-225Z
QTE1H54-225Z
27k
150
8200P
1K
1K
68k
3.3K
3.3K
2.2K
NJU7772F15-X
QGB2027M4-22S
1M
220
1.5M
100p
SN74LVC2G07V-X
QGZ2512M1-08
QGZ2512M1-10
1k
10k
0.1
47/6.3
47/6.3
47/6.3
0.1
NJM4565E-X
820
100k100k
10k
820p
820p
3300p
39K
4.7k
0.1
47/6.3
QTE0J57-476Z
4.7k
QTE1A57-107Z
0.1
0.22
47/6.3
47/6.3
4.7
2SA1530A/QR/-X
100/6.3
47/6.3
0.1
47K
100/6.3
0.1
0.1
1k
GND
FEED-
VF2 FEED+ RFVDD
GND VT2
SW1
VT1 SW2
VF1 PSW
VR
SPINDLE­LD
SPINDLE+ FOCUS-
VREF
FOCUS+ MD
TRACKING+
TRACKING-
FEED­FEED+
SPINDLE+
SW1
SPINDLE-
SW2
PSW
VCC
TRACKING-
TRACKING+
FOCUS+
FOCUS­LD
GND MD
VR VF1
VREF
VT1 GND
VT2
VF2
TO SHEET 1
TO CN503
(SHEET 3)
TO CN502
(SHEET 3)
CD servo control section (1/2)
2-16
SHEET 2
Page 19
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
IC501
CN502
CN503
R520
R500
R569
Q501
R507
R508
R509
R510
R511
R513
R515
R517
C505
C506
C518
C507
C512
C511
C514
C501
C510
C509
R505
R568
C508
R519
R506
C502
R501
R502 R503
R512
C513
R514
C515
R516
C517
R518
C503
C504
LA6242H-X
QGZ2512M1-10
QGZ2512M1-08
22
22
11k
2SA1705/ST/-T
15k
3.3K
100K
27K
15K
10k
15k
15k
47/16
0.01
68p
0.1
0.1
2200p
0.1
220/6.3
0.047
0.047
11k
7.5k
0.047 47k
30k
0.1
8.2k
8.2k 5.1k
5.6K
6800p
5.6k
0.0012
1K
0.0018
5.6K
220/10
0.1
TO SHEET 2
TO SHEET 2
CD servo control section (2/2)
SHEET 3
2-17
Page 20
R601
R664
C661
R687
R688
D643
JS686
S606
IC681
C681
C682
D642
D640
D637
D636
D641
D638D635
D634
D645
C664
R605
D662
IC661
R610
D633
C687
D649
S602
D647
D648
S601
D646
CJ601
R662
R665
C663
C662
R666
R667
R668
S607
S605S604S603
S608S609
S610
S611S612
S613S614S615
D630
R611
D639
R606
R607
R609
R608
R602R603R604
R661
R612
D632
D631
R613
R670
S616
LCD1
B633
D644
R663
D661
R649
R644
R642
R682
R681
R631
R632
R641
R643
R686
R638
R640
C686
R637
R639
D652
R646
R645
D681
R650
R630
D653
R671
Q671
R672
Q670
R635
R636
B636
B635B634
R633
R634
820
10K
10/6.3
47K
47K
QSW0976-001
RPM7338-V4
4.7/6.3
0.012
0.1
2.7k
UDZW5.1B-X
PT6523LQ-L
2.7k
0.022
QGZ1601K1-15S
2.2K
51K
0.022
680p
10K
10K
10K
820
820
820
1.8k
1.2k
8201.2k1.8k
2.2K
820
1.2k
470
QLD0388-001
0
180K
1SS355W-X
390
10K
470
470
330
470
100
0.022
330
330
NSPW310BS/BRST/
470
UDZW6.2B-X
390
820
SML-310LT/MN/-X
NSPW310BS/BRST/
47K
RT1N141C-X
1K
2SA1365/F/-X
0
00
470
KEY2
KEY2
ENC1
KEY1
ENC2
CE
CLK DATA
REMOCON
LCDCLK
KEY1
DIMOUT
ILL10V
KEY0
S51
S52
ACC5V
KEY0
LCDCE
LCDDA
LCDCE
LCDCLK
LCDDA
INH
S17
S18
OSC
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S49 S50
COM3
COM2
COM1
COM1
S52
S51
S50
DIMOUT
S3S4S5S6S7
S8
S9
S10
S49
S48
S2
S11
S1
S12
COM2
COM3
S47
S46
S4
S3
S13
S14
S15
S16
S45
S44
S43
S42S2S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10S9S8S7S6
S5
S1
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
TO CN701
(SHEET 1)
LCD & Key control section
2-18
SHEET 4
Page 21

Printed circuit boards

Main board (For KD-AR270, KD-G220, KD-G227, KD-G323, KD-G324, KD-G325, KD-G326)
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
D714
D712
D711
D721
D715
D716
D717
D718
D719
Q891
R745
R891
R726
R587
R585
R892
C587
B545
R801
B933
C585
C584
C589
R593
IC581
R591 R592
R810
R586
R806
R589
R588
C583
CN701
C591
R743
C711
D720
R710
C536
C713
B540
R802
R728
C592
D891
D713
R711
D892
IC801
B539
C715
R583
R594
B527
R719
R708 R701
R809
R808
R807
R522
B526
C590
R709
C801
C903
C703
R590
C716
C588
R738 R740
R724 R803
R805
R524
R533
X521
X701
R736
C10
R521
C704
C534
R735 R737 R739
C982
R534
C548
R717
R14
R11
Q5
C1
C81
R31
R82
R81
C7
C82
C83
C184
C183
R715
R716
C194
R766
R906 R905
L701
R764
R760
R311
R762
R763
R733
C701
B532
B533
CN501
R558
C542
C541
R565
R548
C529
R544 R543
R554
B542
C537
C533
C9
B738
C33 C32
D3
R33
R34
Q32
C179
B316
R303
C31
C319
R32
Q301
C310
R315
C192
R301
R367
C305
Q31
D1
D2
R341
R162
R176
IC301
C165
C169
B916
R166
C176
C168
C166
C910
R304
D783
D784
D301
R909
C307
C781
R907
C175
Q902
R167
C312
C313
R172
C909
C908
B917
C784
C301
C907
D341
D351
L1
C905
C308
D321 D331
R321
R325
D781
C311
C782
R164
R174
R908
R363
R910
C318
C911
R331
C904
C361
R918
C363
Q781
D782
D901
R361
C4
C3
R36
B165
C191
R191
D161
C783
Q903
Q783
R302
R365
R366
R368
C178
B364
C323
R177
C315
C314
C306
D4
Q6
R3
D501
C163
R10
C302
B531
R35
TU1
C6
C2
R9
R37
B362
B363
B317
C309
C304
B315
R13
C12
R1
C164
IC161
D906
D903
C916
C303
R362
R364
Q341 R345 R355 R351
Q321
Q331
R335
Q782
C362
R342 Q351 R352
R902
D907
C364
R903
R901
R322
R332
C919
J1
C351
C915
C321
C331
C98
C96
C341
J321
C906
IC901
D904 D905
C913
R912
C914
L901
R911
C902
CN901
C901
R16
R5 R6
C11
R540
R706
R731
R705
R545
C526
C549
C528
IC521
R718
R541
R729
C527
C8
R559
C544
C540
C531
R542
R92
C92
R713 R712
B749
B13
Q4
R704
C532
Q521
R91
C543
C530
C91
C93
B541
R12
R703
C702
R765
C546
C539
C535
B538
R556
D6
R2
C13
C15
D706
B748
R528
R530
R756
IC701
R752
D702
R529
R531
C984
R753
D701
R755
R751
D703
C983
Q1
R4
Q2
R727
R742
B354
C538
C545
R532
C547
B535
C524
C523
R537
C525
B19
R730
R732
R707
R749
R741
C705
R748
R723
R725
R811
R754
D704
B750
C586
R584
R562
IC523
R561
R527
R526
R525
R523
C522
R535
C551
C552
IC981
C981
B537
Function board
R518
R517
C513
CN502
C517
R513
R514
Q501
C501
R500
C507
C503
C512
R501
R505
R507
C511
R511
R512
B559
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
R509
R515
R508
R520
R502
C514
C504
R503
C518
B558B557
B560
C506
IC501
C502
C515
R516
R510
C505
C509
C510
C508
CN503
B561
R519
R506 R569
R568
2-19
Page 22
Main board (For KD-G321, KD-G322, KD-G327)
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
C73
C78
R77
R74
R710
C72
R78
R708
R767
R538
R751
R539 C984 C983
R528
R531
R529
C719
R532
B536
R752
C545
C538
R537
D3
C85
R3
C8
B739
C1
R762
R766
R760
C714
R772
R749
R750
C709
C544
C548
C549
C547
R559
C540
C531
C526 C524
R545
R540
C525
C523
C71
R73
R75
R709
B763
X701
R716
R765
IC701
R735
R742
R743
R737
R740
B532
B533
R526
C551
IC981
B520
C543
Q74
R758
IC771
R771
C534
C528
R739
C553
C2
C7
C3
C4
R4
R707
C81
R753
C771
C532
B740
C535
R558
Q521
R554
R761
R759
C542
C541
C537
R756
R556
C91
R746
C92
C82
R92
R81
R82
C84
C93
C83
C94
PP2
B733
B734
R757
B732
B725
B741
B710
D501
B508
C539
C554
R548
B505
R544 R543
R542
R541
C527 B512
R2
R1
R91
B711
C546
C533
C6
R745
CN501
C707
C781
C710
B745
B330
B708
R755
C168
R754
D781
B179
R565
C5
R306
B744
R163
C319
B784
R303
C302
R702
L701
B329
R748
C169
Q781
C304
C164 C165
C166
Q912
R324
C318
R305
C782
R307
C322
C163
R183
R701
R905
D903
C323
R747
R311
D782
Q782
R323
C305
C183
C160
C316
D1
D2
B178
R161
R162
C167
R165
C324
C306
Q911
R906
R310
B176
C315
C310
B172
B311
C182
R182
IC171
C312
R166
R302
C313
B313
C192
C314
TU1
B317
C321
L2
B319
D714
C718
CN761
R589
R587 R585
R592
R594
R591
D713
D776
D711 D721
D716
D717 D718
D719
D720
C583
C713
D712
S775
R593
R777
D722 C776 IC775 C775
R583
C711
CN701
D715
C584
R588 R586
C585
C587
R730 R736
C536
R734
IC581
C591
D775
R802
B535
R775 R741 R776
B530
R801
B768
R719
R728
B775
R804
R726
B769
R805
C75
C74
R76
C712
R722
R724
B803 R807
R803
C592
IC801
R524
B526
C76
X71
IC71
R72
B72
C705
C77
R71
R713
R714
C706
R712
R711
C702
R721
C701
C703
X702
C704
R717
R718
R720
R723
R810 R808
R584
C801
C590
R521
C586
R590
R806
B522
R731
R809
B752
R562
R533
X521
C588
B755 B754 B753
C552
R727
IC523
R522
B524
R535
R738
R725
R732
B525
C982
R561
C522
R729
R527
R534
C521
C981
R744
R733
R566
R530
R525
R523
IC521
B531
B325
R175
D301
C307
C189
R912
R173
R301
C919
R192
C177
R193
C193
R181
D892
R176
L1
C188
R172
C308
C179
C903
D971
B310
C311
C325
R341 R345
IC301
B320
D341
C908
C909
C891
R325
C904
C905
C916
Q301
C181
C783
B324
R171
C910
R911
R902
B2
D351
C178
C301
R326
C326
C915
B916
B318
C173
R355
B323
C303
R971
C175
B5
R901
C971
R972
C320
C191
C174
C176
C907
C317
J1
J321
R342
Q341
C341
B1
C351
Q351
R351
R352
R191
PP1
R304
B322
C162
C172
J801
C911
IC901
R903
R891
D901
D891
R892 Q891
D972
L901
CN901
C902
C901
2-20
Page 23
Switch board
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Forward side Reverse side
R609
R639 R640
S612
D636
S602
D640
JS686 R602
R610
R638
D637
D635
D631
R637
B635
R605 R604
LCD1
D632
D633
R636 R635
B634
D634
B633
S601
B636
R611
R633
S614
S613
R634
D652D653
D630
D644
IC681
R665
C662
C663
R644 R643 R646 R645
R612
R601
C664
CJ601
R606
R608
R607
R641 R642
S609S610S611
S608
S603 S604
R603
S605
D638D639
D641 D642
D643
D645
S616
D647
R613
D646
D649
S615
S607
D648
S606
R666
R664
C661 D661 R663 R662 R661 R670
R667 R668
Q670 R671
C687
R686
C686
R681
C682
C681
R672
Q671
D662
R688
R687
R682
D681
R632
IC661
R631
R649
R650
D652D653
IC681
R630
JS686
2-21
Page 24
Victor Company of Japan, Limited
Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MA236SCH)
Printed in Japan
VPT
Page 25
SERVICE MANUAL
CD RECEIVER
MA236200512
KD-AR270,KD-G220,KD-G227,KD-G321,
KD-G322,KD-G323,KD-G324,KD-G325,
KD-G326,KD-G327
KD-AR270,KD-G220
Area suffix
J ------------- Northern America
KD-G227,KD-G327
Area suffix
EE -------- Russian Federation
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
KD-G321,KD-G322
Area suffix
E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe EU ------------------------- Turkey
KD-G323,KD-G324
Area suffix
UI ---------------------------- India
KD-G325,KD-G326
Area suffix
UT ------------------------- Taiwan UH ---------------------- Thailand UN --------------------- Indonesia U -------------------- Other Areas
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MA236
2005/12
Page 26
SPECIFICATION
KD-AR270/KD-G220
AUDIO AMPLIFIER SECTION
Power Output 18 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N Signal to Noise Ratio 80 dBA (reference: 1 W into 4 Ω) Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Treble ±10 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
TUNER SECTION
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200
kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
Capture Ratio 1.5 dB
AM Tuner Sensitivity 20 µV
Selectivity 35 dB
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
Max. Bit Rate: 320 kbps
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions
(W × H × D)
Mass (approx.) 1.2 kg (2.6 lbs) (excluding accessories)
Installation Size (approx.) 182 mm × 52 mm × 150 mm (7-3/16" × 2-1/16" × 5-15/16") Panel Size (approx.) 188 mm × 58 mm × 11 mm (7-7/16" × 2-5/16" × 7/16")
Design and specifications are subject to change without notice.
1-2 (No.MA236)
Page 27
KD-G227
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 45 W per channel
Rear 45 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.0 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
AM Tuner Sensitivity 20 µV
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.2 kg (excluding accessories)
Front 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Rear 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
AM 522 kHz to 1 620 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
Selectivity 35 dB
CD PLAYER SECTION
Max. Bit Rate: 320 kbps
GENERAL
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
(No.MA236)1-3
Page 28
KD-G321/KD-G322
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 50 W per channel
Rear 50 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Other terminals Steering wheel remote input
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
MW Tuner Sensitivity 20 µV
LW Tuner Sensitivity 50 µV
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.2 kg (excluding accessories)
Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
TUNER SECTION
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
Selectivity 35 dB
CD PLAYER SECTION
Max. Bit Rate: 320 kbps
GENERAL
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
1-4 (No.MA236)
Page 29
KD-G323/KD-G324
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 50 W per channel
Rear 50 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
AM Tuner Sensitivity 20 µV
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.2 kg (excluding accessories)
Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
TUNER SECTION
AM 531 kHz to 1 602 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
Selectivity 35 dB
CD PLAYER SECTION
Max. Bit Rate: 320 kbps
GENERAL
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
(No.MA236)1-5
Page 30
KD-G325/KD-G326
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 50 W per channel
Rear 50 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
AM Tuner Sensitivity 20 µV
Type Compact disc player
Signal Detection System Number of Channels
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.2 kg (excluding accessories)
Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
TUNER SECTION
AM 531 kHz to 1 602 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
Selectivity 35 dB
CD PLAYER SECTION
Non-contact optical pickup (semiconductor laser)
2 channels (stereo)
Max. Bit Rate: 320 kbps
GENERAL
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
1-6 (No.MA236)
Page 31
KD-G327
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 50 W per channel
Rear 50 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Frequency Range FM1/FM2 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
MW Tuner Sensitivity 20 µV
LW Tuner Sensitivity 50 µV
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
WMA (Windows Media® Audio) Decoding Format Max. Bit Rate: 192 kbps
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.2 kg (excluding accessories)
Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
TUNER SECTION
FM3 65.00 MHz to 74.00 MHz
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
Selectivity 35 dB
CD PLAYER SECTION
Max. Bit Rate: 320 kbps
GENERAL
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
(No.MA236)1-7
Page 32

1.1 Safety Precautions

SECTION 1
PRECAUTIONS
!
!
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.
1-8 (No.MA236)
Page 33

1.2 Preventing static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.2.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption) Anti-static wrist strap
1M
Conductive material (conductive sheet) or iron plate
(3) Handling the optical pickup
• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.

1.3 Handling the traverse unit (optical pickup)

(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.4 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the CD pickup unit.
• Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit. (If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land after connecting the flexible wire.
Pickup
Wires
Push switch
Base board
Frame
Flexible wire
Connector
CD mechanism assembly
Pickup
(No.MA236)1-9
Page 34

1.5 Important for laser products

!
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The CD,MD and DVD player uses invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
CAUTION : Visible and Invisible
CLASS 1 LASER PRODUCT
laser radiation when open and interlock failed or defeated. AVOID DIRECT EXPOSURE TO BEAM. (e)
ADVARSEL : Synlig og usynlig laserstråling når maskinen er åben eller interlocken fejeler. Undgå direkte eksponering til stråling. (d)
VARNING : Synlig och osynling laserstrålning när den öppnas och spärren är urkopplad. Betrakta ej strålen. (s)
VARO : Avattaessa ja suojalukitus ohitettuna tai viallisena olet alttiina näkyvälle ja näkymättömälle lasersäteilylle. Vältä säteen kohdistumista suoraan itseesi. (f)
1-10 (No.MA236)
Page 35

2.1 Difference point

SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
KD-AR270
KD-G220,KD-G227
Remote ready YES NO YES YES
Steering remote ready NO YES NO NO
Power antenna NO NO YES NO
Telephone Muting NO YES NO YES

2.2 CD mechanism assembly

For CD mechanism, please refer mechanism amnual No. MY003.
KD-G322 KD-G321
KD-G323,KD-G324 KD-G325,KD-G326
KD-G327
(No.MA236)1-11
Page 36
SECTION 3
DISASSEMBLY

3.1 Main body section

3.1.1 Removing the front panel assembly (See Fig.11)
(1) Push the detach button in the lower right part of the front
panel assembly and remove the front panel assembly.
3.1.2 Removing the bottom cover (See Fig.2)
(1) Turn the main body up side down. (2) Insert a screwdriver under the joints to release the two
joints a on the left side, two joints b on the right side and joint c on the back side of the main body, then remove the bottom cover from the main body.
Note:
When releasing the joints using a screwdriver, do not damage the main board.
Joint a
Front panel assembly
Fig.1
Bottom cover
Detach button
Joint
b
3.1.3 Removing the front chassis assembly (See Fig.3)
• Remove the front panel assembly and bottom cover.
(1) Remove the two screws A on the both sides of the main
body.
(2) Release the joint d and joint e on the both sides of the main
body, then remove the front chassis assembly toward the front.
Joint a
Joint c
Joint d
Front chassis assembly
Joint b
Fig.2
A
Joint e
Fig.3
1-12 (No.MA236)
Page 37
3.1.4 Removing the side panel
(See Fig.4)
Reference:
Remove the front panel assembly as required. (1) Remove the screw B and two screws C attaching the side
panel on the left side of the main body.
(2) Remove the side panel from the main body.
3.1.5 Removing the rear bracket
(See Fig.5)
• Remove the bottom cover.
(1) Remove the three screws D, three screws E and two
screws F attaching the rear bracket on the back side of the main body. (For KD-AR270, KD-G220, KD-G227, KD­G323, KD-G324, KD-G325, KD-G326, KD-G327)
(2) Remove the four screws D, three screws E and two screws
F attaching the rear bracket on the back side of the main body. (For KD-G321, KD-G322)
(3) Remove the rear bracket.
Fig.4
F
C
E
C
(For KD-AR270,KD-G220,KD-G227,KD-G323,
B
Side panel
KD-G324,KD-G325,KD-G326,KD-G327 )
Rear bracket
EF
DD
(For KD-G321,KD-G322)
Rear bracket
EFE
F
DD
Fig.5
(No.MA236)1-13
Page 38
3.1.6 Removing the main board (See Figs.5 and 6)
• Remove the front panel assembly, bottom cover and side pan-
el.
Reference:
Remove the front chassis assembly as required. (1) Remove the three screws D attaching the rear bracket on
the back side of the main body. (See Fig.5.)
(2) Remove the two screws G attaching the main board. (See
Fig.6.)
(3) Disconnect the connector CN501
the main body and take out the main board with the rear bracket. (See Fig.6.)
Reference:
Remove the rear bracket from the main body as required. (See "3.1.5 Removing the rear bracket".)
3.1.7 Removing the CD mechanism assembly (See Fig. 7)
• Remove the front panel assembly, bottom cover, side panel,
rear bracket and main board.
Reference:
Remove the front chassis assembly as required. (1) Remove the three screws H attaching the CD mechanism
assembly on the top chassis.
(2) Take out the CD mechanism assembly.
on the main board from
G
CN501
Main board
G
Rear bracket
Fig.6
H
1-14 (No.MA236)
CD mechanism assembly
Top chassis
H
Fig.7
Page 39
3.1.8 Removing the switch board
(See Figs.8 to 10)
• Remove the front panel assembly.
(1) Remove the four screws J on the back side of the front pan-
el assembly. (See Fig.8.) (2) Release the joints f and remove the rear cover. (See Fig.9.) (3) Release the joint g and take out the switch board from the
front panel assembly. (See Fig.10.)
J
J
Fig.8
Joints f
Rear cover
Joints f Joints f
Switch board
Joints f
Fig.9
Joint
Front panel assembly
g
J
Fig.10
(No.MA236)1-15
Page 40
SECTION 4
ADJUSTMENT

4.1 Adjustment method

Test instruments required for adjustment
(1) Digital oscilloscope (100MHz) (2) Electric voltmeter (3) Digital tester (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 (6) Extension cable for check
EXTSH002-22P × 1
Standard volume position
Balance and Bass &Treble volume : lndication"0" Loudness : OFF
How to connect the extension cable for adjusting
Caution:
Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power. If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
Standard measuring conditions
Power supply voltage DC14.4V(10.5 to 16V)
Load impedance 20KΩ(2 Speakers connection)
Output Level Line out 2.0V (Vol. MAX)
Dummy load
Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.
1-16 (No.MA236)
Heat sink
Extension cable
EXTSH002-22P
Rear bracket
Page 41

5.1 Feed section

SECTION 5
TROUBLESHOOTING

5.2 Focus section

Is 4V present at both sides of the feed motor?
NO
Is the voltage output at pin 4 and pin 5 of IC501?
NO
Is the voltage input at pin 28 of IC501?
NO
Is the voltage output at pin 7 of IC521?
NO Is the power supply present at pin 37, pin 49, pin 53, pin 56 and pin 72 of IC521?
NO
Check the connections of CD8V power supply.
YES
YES
YES YES
YES
Check the feed motor.
Check the connections between the feed motor and IC501.
Is the power supply present at pin 3, pin 12 and pin 21 of IC501?
Check the connections of CD8V power supply.
Check the connections
YES
between IC501 and IC521.
Check IC521.
NO
Check IC501.
When the lens is moving:
4V
Does the S-search waveform appear at IC501 pins 8 and 9?
NO
Is the voltage input at pin 15 of IC501?
NO
Is the voltage output at pin 13 of IC521?
NO
Is the power supply present at pin 37, pin 49, pin 53, pin 56 and pin 72 of IC521?
NO
YES
YES
YES
YES
Check the pickup and its connections.
Is the power supply present at pin 3, pin 12 and pin 21 of IC501?
Check the connections of CD8V power supply.
Check the connections between IC501 and IC521.
Check IC521.
YES
Check IC501.
NO
Check the connections of CD8V power supply.
(No.MA236)1-17
Page 42

5.3 Spindle section

Is the disk rotated?
NO
Is the voltage output at pin 6 and pin 7 of IC501?
NO
Is the voltage input at pin 17 of IC501?
NO
Is the voltage output at pin 5 of IC521?
NO
Is the power supply present at pin 37, pin 49, pin 53, pin 56 and pin 72 of IC521?
NO
YES
Does the RF signal appear at pin 39 of IC521?
YES
Check the spindle motor and its wiring.
Is the power supply
YES
present at pin 3, pin 12 and pin 21 of IC501?
Check the connections of CD8V power supply.
Check the connections
YES
between IC501 and IC521.
YES
Check IC521.
NO
YES
Is the RF waveform at pin 39 of IC521 distorted?
Check the circuits in the vicinity of IC521 or the pickup.
YES
NONO
Check IC501.
YES
Proceed to the Tracking section
Check the connections of CD8V power supply.

5.4 Tracking section

When the disc is rotated at first:
Approx. 1.2V
Is the tracking error signal output at pin 26 of IC521?
NO
Check the pickup and its connections.
Replace IC521 or repair
YES
the malfunction connection point
1-18 (No.MA236)
Page 43

5.5 Signal processing section

5.5.1 Signal processing section (For KD-AR270,KD-G220,KD-G227,KD-G323,KD-G324,KD-G325 and KD-G326)
Is the sound output from both channels (L, R)?
YES
Normal
NO
No sound from either
YES
channel.
NO
Compare the L-ch and R-ch to locate the defective point.
5.5.2 Signal processing section (For KD-G321,KD-G322 and KD-G327)
Is the sound output from
YES
both channels (L, R)?
NO
No sound from either
YES
channel.
NO
Compare the L-ch and R-ch to locate the defective point.
Is 9V present at pin 24 of IC161?
NO
Is 9V present at pin 13 of IC901?
NO
Check IC901 and its peripheral circuits.
Normal
Is 9V present at pin 32 of IC171?
Is the audio signal (including sampling
YES
output components) output to pins 1 and 7 of IC581 during playback?
Check IC581 and its peripheral circuits.
Check the connections
YES
between pin 24 of IC161 and pin 13 of IC901.
Is the audio signal (including sampling
YES
output components) output to pins 1 and 7 of IC581 during playback?
Check IC581 and its peripheral circuits.
NO
NO
Is the audio signal output
YES
at pin 18 and pin 19 of IC161 during playback?
Check IC161 and its peripheral circuits.
Is the audio signal output
YES
at pin 18 and pin 19 of IC171 during playback?
Check IC171 and its peripheral circuits.
NO
YES
Check the power amplifier IC301.
NO
NO
Is 9V present at pin 13 of IC901?
NO
Check IC901 and its peripheral circuits.
Check the connections
YES
between pin 32 of IC171 and pin 13 of IC901.
YES
Check the power amplifier IC301.
(No.MA236)1-19
Page 44

5.6 Maintenance of laser pickup

(1) Cleaning the pick up lens
Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab.
(2) Life of the laser diode
When the life of the laser diode has expired, the following symptoms will appear.
• The level of RF output (EFM output: amplitude of eye pattern) will be low.

5.7 Replacement of laser pickup

Turn of the power switch and, disconnect the power cord.
Replace the pickup with a normal one. (Refer to "Removing the pickup unit" on the previous page.)
Is RF output
1.3 0.4Vp-p?
NO
Replace it.
YES
OK
(3) Semi-fixed resistor on the APC PC board
The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value, the la­ser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pickup is functioning normally, the laser pickup may be damaged due to excessive current.
Plug the power cord in, and turn the power on. At this time, check that the laser emits for about seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly.
Play a disc.
Check the eye-pattern at
RF test point or
ARF test point.
Finish.
1-20 (No.MA236)
Page 45

5.8 16 PIN CORD DIAGRAM (for AR270,G220)

8 7
6 5
4
3
2
1
BK
RD
NC
BL/WH
WH
GN
VI
GY
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
16 YL
8 BK
7 RD
3 GN
11 GN/BK
2 VI
10 VI/BK
4 WH
16
15
14 13
12
11
10
9
MEMORY
GND
ACC
RL+
RL-
RR+
RR-
FL+
BK
RD
BL
Black
Red
Blue
WH White
GN
VI
GY
YL
Green
Violet
Gray
Yellow
GND
12 WH/BK
1 GY
9 GY/BK
5 BL/WH
RR
Rear Right
FR
FL
RL
Rear Left
Front Right
Front Left
FL-
FR+
FR-
REMOTE
REMOTE OUT
REMOTE
ACC
MEMORY
GND
Remote out
ACC Line
Memory Backup Battery+
Ground
(No.MA236)1-21
Page 46

5.9 16 PIN CORD DIAGRAM (for G227)

8
7 6 5
4
3
2 1
BK
RD
NC
BL/WH
WH
GN
VI
GY
7 RD
16 YL
8 BK
5 BL/WH
3 GN
11 GN/BK
2 VI
10 VI/BK
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
16 15
14
13
12
11
10
9
MEMORY
REMOTE
ACC
GND
RL+
RL-
RR+
RR-
BK
RD
BL
Black
Red
Blue
WH White
GN
VI
GY
YL
Green
Violet
Gray
Yellow
RD
1
3
5
7
NC
NC
BL/WH
RD
RD 7
YL 4
NC
2
4
YL
NC
6
8
BK
8
5
7
8
1
2
4 WH
12 WH/BK
1 GY
9 GY/BK
RR
FR
FL
RL
Rear Right
Front Right
Front Left
Rear Left
FL+
FL-
FR+
FR-
REMOTE
ACC
MEMORY
GND
Remote out
ACC Line
Memory Backup Battery+
Ground
5
6
3
4
VI
1
GY
3
WH
5
7
WH/BK
GN
VI/BK
GY/BK
GN/BK
2
4
6
8
1-22 (No.MA236)
Page 47

5.10 16 PIN CORD DIAGRAM (for G323,G324,G325,G326)

BK
8
YL
16
7 6 5
4 3
2
1
RD
BL
BL/WH
WH
GN
VI
GY
16 YL
8 BK
7 RD
3 GN
11 GN/BK
2 VI
NC
15 14
NC
NC
13
WH/BK
12
GN/BK
11
10
VI/BK
GY/BK
9
MEMORY
GND
ACC
RL+
RL-
RR+
BK
RD
BL
Black
Red
Blue
WH White
GN
Green
VI Violet
GY
YL
Gray
Yellow
GND
RR
FR
FL
RL
REMOTE
10 VI/BK
4 WH
12 WH/BK
1 GY
9 GY/BK
5 BL/WH
6 BL
Rear Right
Front Right
Front Left
Rear Left
Remote
RR-
FL+
FL-
FR+
FR-
REMOTE
ANT
ANT
ACC
GND
MEMORY
REMOTE
OUTPUT
ONLY
POWER
ANTENNA
Auto Antenna
ACC Line
Ground
Memory Backup Battery+
(No.MA236)1-23
Page 48

5.11 16PIN CORD DIAGRAM (for G321,G322,G327)

8 7 6 5
BK
RD
NC
BL/WH
YL
NC
NC
BR
16 15 14 13
BK
RD
BL
WH
4
WH
GN
3 2
VI
1
GY
WH/BK
GN/BK
VI/BK
GY/BK
12 11 10
9
BR
Black
Red
Blue
White
Brown
GN
VI
GY
YL
Green
Violet
Gray
Yellow
BR
NC
1
NC
3
BL/WH
5
RD
7
YL
NC
BK
2
4
6
8
RR
FR
FL
RL
7 RD
16 YL
8 BK
5 BL/WH
13 BR
3 GN
11 GN/BK
2 VI
10 VI/BK
4 WH
12 WH/BK
1 GY
9 GY/BK
Rear Right
Front Right
Front Left
Rear Left
ACC
TEL
GND
MEMORY
RD
ACC Line
Telephone Muting
Ground
Memory Backup Battery+
RD 7
YL 4
8
5
2
7
8
1
2
5
6
3
4
VI/BK
VI
1
GY
3
WH
5
GN
7
GY/BK
WH/BK
GN/BK
2
4
6
8
REMOTE
ILL
1-24 (No.MA236)
Remote
Illuminations Control
ANT
Auto Antenna
Page 49
(No.MA236)1-25
Page 50
Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MA236)
Printed in Japan
VPT
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use