Kenwood KDC-202U Service Manual page 43

ELECTRIC UNIT-2 (X34-7xxx-xx)
TRK-
TRK+
FOCUS+
FOCUS-
CN502
QGF1040F1-26
VF1
VF1 1
SW3
SW3 2
D3.3V 3
SW2
SW2 4
VF2
VF2 5
SW1
SW1 6
R576
VT2
VT2 7
10K PSW R575
8
PSW
R577 C576
VT1
VT1 9 3.3k
C575
10K VREF
VREF 10
1500p CD_MD
MD 11
To CD PLAYER UNIT C516 0.1
GND 12
R535
HC1-2
(X32-6530-00) HC1_2 13
LOAD-
LOAD- 14
CN101 LOAD+
LOAD+ 15
SP+
16
SPINDLE+
SP-
SPINDLE- 17
FEED+
18
FEED+
FEED-
FEED- 19
GND 20
LD 21
GND 22
TRK-
TRK- 23
TRK+
TRK+ 24
FOCUS-
FOCUS- 25
FOCUS+
26
FOCUS+
3.0V
2.4V
1.9V
Q540
2SA2188/F/-X
LASER DIODE CIRCUIT
No.WA002
R504
BTL_TRO
270k
R507
BTL_FOO
56K
R505 R511
BTL_FMO
100K 13K
R506
BTL_DMO
30K
TSDO VREF
R516 33k DSPR
C504 0.1
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
DSPL
IC501
!
LV8281VR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
C503
R519
33K
R514
D502
GS1J-LTP-X
D503
VREF
C540 0.1 R540
C541 2200p 1.3V 0V
220
VCOI Pio7
C542 0.1 3.3V 0V NQR0502-001X
RVDD3 Pio6
C543 0.01 1.6V 3.3V NQR0502-001X
SLCO Pio5
C544 3300p 1.6V 3.3V NQR0502-001X
AFR RFI Pio4
C545 0.1 1.6V 0V
RFRPI Pio3
R561
1.6V 0V
RFEQo
VREF Pio2
C547 R560
0.015 1.6V 0V
DCoFC
C546 1 Pio1
1.6V 0V R559
AGCi ! Pio0
0.1
C548 68p 1.3V 0V
C549
RF RFo VSS-2
IC540
0V 1.5V C565
RVSS3 JCV8022 VDD1-2
0.1
1.6V 3.3V
FNi2 XVDD3
VF1 1.9V 1.5V C564
FNi1 Xo
1.9V 0.1
1.4V
FPi2 Xi
VF2 1.8V 0V
FPi1 XVSS3
VT2 1.9V 0V
TPi DVSS3L
VT1 1.9V 1.7V
TNi
Lo
1.6V 3.3V
VRo DVDD3L
0V 3.3V
AVSS3 DVDD3R
R545 0V 1.7V
2.2M
MDi Ro
R549 2.2V 0V
1K
LDo DVSS3R
CD_MD
FE
/DET
C552
0.033
FOK IPT
TE
C553 4700p
C554 330P
C555 680P
C556 0.068
C557 0.033
R595
2K
R596
2K
IC530
4.6V
3.3V
CTRL VIN
0V
3.3V
GND VOUT
XC6213B332NG-X
IC531
3.3V 4.6V
CTRL VIN
0V 1.5V
L565
R564 LRCK GND VOUT
100
L564
R563 100 BCK
L563 XC6213B152NG-X
R562 100 DATA
IC532
100 GATE
100 BSIF_REQ
4.6V 4.6V
CMDREQ CTRL VIN
100
0V 1.5V
GND VOUT
R557
XC6213B152NG-X
470
R556
0
L561
NQR0251002X C562 10
C561 10
L562
NQR0251-002X
R555
L531
4.7
R554
NQR0251-002X
4.7
! Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
(No.WA002<Rev.001>)5/13
CD.R
S.GND
CD.L
PON_CD
VDD5V
MAINGND
CMDREQ
BSIF_REQ
DATA
GATE
BCK
LRCK
CMDSO
CMDSI
CMDBUCK To ELECTRIC UNIT-1
CMDCCE
(X34-7xxx-xx)
CDRESET
SRAMSTB
CDMUTE
BTLGND
CD8V
FWD
REV
DRVMUTE
SW3
SW1
SW2
PSW
HC1-2
created date:2011-09-29