JVC KW-R900B, Service Manual

Page: 21 / 56

CONDITION ---FM MODE. ( )CD MODE. AM MODE.
4.8V 3.3V 3.3V
3.2V
0V
3.4V
( )
1.7V 1.7V
3.0V 3.2V 3.4V 3.3V
3.0V 3.2V
0V
1.7V
3.4V
0V 0V 0V
HOT!
HOT!
1.7V 1.7V 1.3V 4.8V
4.8V
5.4V
7.1V
5-CH BTL DRIVER
0V
6.3V 7.1V 1.7V
1.7V 1.7V 1.7V
1.7V 1.7V
0V
DSP
GND
USB.GN
D
H: HC2
L: HC1
HC2-DET
CD.L
A.GND
CD.R
SW1
9V-TCC
CD8V
MIC
SW
3
GND
NOT USE
D
1/10W 1/10W
2.4V
3.1V
1.9V
1.7V 1.7V 1.7V 1.6V 1.6V 1.6V 1.7V
0V 0V
3.4V
1.7V
1.7V 1.5V 0V 0V
2.1V
3.3V
0V
3.2V
1.7V
0V
1.5V
0V
3.4V
0.1V
1.7V
1.7V
0.6V
3.4V
3.4V
1.6V
1.7V
0V
3.3V
0V
1.6V 0.1V
0V 0V 0V 0V 0V
3.3V
0V
3.4V
0V 0V
1.4V 1.4V
1.7V
0.8V
0V
1.7V
1.3V
1.2V
1.1V
1.0V
1.7V
1.6V
1.9V
3.4V
2.4V
0.2V
1.9V
1.9V
1.9V
1.9V
2.0V
2.0V
0V
A.
GND
GND
USB5V
MUTE.CTL
TRST
USBRX
USBTX
UH0+
UH0-
3.3V
4.2V
8.3V 4.2V
0V
4.2V
-
+
4.2V
+
-
GN
D
Vcc
4.2V 4.2V
USB.GN
D
BLKCK
PSW
USB.GND U1
-
U1
+
USB3.3V
U0
-
U0
+
USB0.EN USB1.EN
A_MUTE RESET UR
X
UT
X
MI
C
DAC_L
DAC_R A_GND
A9V
GN
D
USB.GN
D
CD16M
D_BCLK D_LRCLK NRST D_SDATA STAT ML
D
MDATA MCLK
SW
2
SW
1
REV
B.MUTE
FW
D
USBH1
* CSEL: L(R544)-16.9344MHz
SERVO DSP
H(R545)-33.8688MHz
GND
GND
NOTES
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
UNLESS OTHERWISE SPECIFIED.
1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL
2.
COMPONENTS IN ( ) INDICATE NOT USE. 3.
ALL CAPACITANCE VALUES ARE IN uF(P=pF)
ALL RESISTANCE VALUES ARE IN OHM.
ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR.
ALL RESISTORS ARE 1/16W 5% METAL GLAZE RESISTOR.
MAIN PWB: GEB10326A
SP
+
SP
-
VREF
CBCLK
CLRCK
SRDATA
MLD
MDATA
MCLK
STAT
LOAD
-
LOAD
+
FEED
+
FEED
-
FOCUS- FOCUS+ TRK- TRK+ TRP FOP TRV
P
SPOU
T
REV FW
D
VCC
UH1-
UH1+
FOCUS+
FOCUS-
TRK+
TRK-
LD
FEED-
FEED+
SP-
SP+
LOAD+
LOAD-
HC2-DET
MD
VT1
PSW
VT2
SW1
VF2
SW2
SW3
VF1
HC2-DET
PSW SW
1
SW
3
SW
2
FW
D
RE
V
BLKCK NRST STAT MCLK SRDATA MDATA CBCL
K
CLK16M ML
D
CLRC
K
VF1
VT1
VT2
VF2
BLKCK
NRST
MD
FO
P
TRP
SPOU
T
TRVP
CLK16M
UH0+
UH0-
CD.L
CD.R
MIC
MUTE.CTL
USB3.3V
GND
TRST
GND
URX
UTX
USB5V
SW1
GND
HC2-DET
9V-TCC
CD8V
sure to use the specified one.
When replacing those parts make
Parts are safety assurance parts. !
!
1
2
3
X521
QAX0714-001Z
EXT0
DQSY
OSCI
N
SMON0 SMON1
MONO
N
SMCK VREF
ARF
PCMK
TX
EXT3 EXT2 EXT1
FLAG
EXT4
R505
8.2k
R509 8.2k
R524 68k R522
5.1k
R517
6.8k
NI R543
R521 8.2k
NI
R526
R516 10k
47k R565
R513
15k
R554
1k
R518
8.2k
R508
10k
0 R560
R504 8.2k
R540
820
R510
8.2k
0
R548
R507 2.2k
R588 27k
R523 33k
R519
47k
R546 22
R550 1k
R503
33k
R506 NI
10
R563
R552
220
R553
1M
R601
10
8.2k R559
R520 10
NI R570
NI R569
NI R568
R544
0
R577 33
R576
33
R575
33
R585
8.2k
R551 1k
R587
27k
R594
10k
R593
10k
R591
10k
R511
5.6k
R592
10k
R549 10k
0 R561
R586
8.2k
R583
24k
10
R564
R571 33
R572 33
R541
2.7k
R502 6.8k
NI
R479
0
R556
R584
24k
R573 33
R478
NI
R574 33
NI
R475
NI
R476
R477
NI
NI
R555
22 R547
R512 15k
R545 NI
0 R562
82k
R542
8.2k R558
R501 NI
R514 8.2k
R515
5.6k
0
R557
R566
0
2SB1424/R/-W Q501
2SA2188/F/-X
Q540
1 4
3 2
LF472
NQR0682-001X
1.8 L521
K581
NQR0022-005X
DQSY 80
(BCLK) GIO2 79
(LRCK) GIO1 78
(SRDATA) GIO0 77
NSRVMONON 76
IOVDD2 75
X1 74
X2 73
DVSS2 72
NRST 71
BLKCK 70
STAT 69
MLD 68
MDATA 67
MCLK 66
TX 65
FLAG 64
TEST 63
NTEST2 62
DVDD2 61
CSEL
60
EXT0
59
(CD16M) EXT1
58
EXT2
57
EXT3
56
EXT4
55
LSPWM
54
AVDD1
53
OUTR
52
NC
51
AVSS1
50
OUTL
49
RFVDD2
48
VCOF
47
PLLFO
2
46
PLLFO
45
PLLF
44
IREF
43
DSLF
42
NC
41
RFVSS2 40
NC 39
ARFIN 38
ARFFB 37
ARFOUT 36
ARFDC 35
RFIN 34
RFOUT 33
RFENV 32
CENV 31
RFVDD1 30
LD 29
PD 28
A 27
C 26
B 25
D 24
F 23
E 22
RFVSS1 21
CTRCRS
20
VREF
19
OSCI
N
18
FO
P
17
TRP
16
TRVP
2
15
TRV
P
14
SPOU
T
13
P
C
12
FG
11
DVSS1
10
DVDD1
9
IOVDD1
8
NC
7
NC
6
NC
5
SRVMON1
4
SRVMON0
3
PMC
K
2
SMCK
1
MN6627553PA
IC541
38
GN
D
37
GND
36
S-GND
35
VCONT
34
MUTE1
33
MUTE234
32
VIN4-
31
VIN4
30
VREF-IN
29
VREF-OU
T
28
REG-OU
T
27
REG-IN
26
VIN+OP
25
VIN-OP
24
VO-OP
23
VIN3
22
VIN3-
21
VIN2
20
VIN2-
19
VIN2+
18
VIN1
17
VIN1
-
16
VIN1
+
15
VCCS
14
VCCP
1
13
VO1+
12
VO1-
11
VO2-
10
VO2+
9
VO3-
8
VO3+
7
VO4-
6
VO4+
5
VLO+
4
VLO-
3
VCC2
2
RE
V
1
FW
D
LA6565-X IC501
1 2 3 4
8 7 6 5
NJM8801E-
X
IC581
VCC
5
Y
4
GN
D
3
IN
2
NC
1
NI
IC540
NAF0029-001X
D478
NAF0029-001X
D477
GS1J-LTP-X
D501
GS1J-LTP-X
D502
47/6.
3
C559
47/6.
3
C545
47/6.3
C550
47/6.3
C558
C591
NI
QEKJ0JM-476Z-
S
C590
47/6.
3
QERF1EM-475Z-
E
C585 4.7/25
QERF1EM-475Z-E
C586
4.7/25
C511 100/16
C513 47/16
C515
100/6.
3
C543
10/25
C541
10/25
C579
10/25
C576
10/25
C571
10/25
C521
82p
4.7 C555
C572
NI
0.33 C569
2700p C549
0.
1
C546
0.1 C551
0.015
C563
C584
820p
C477
22p
0.
1
C573
C476
NI
C578 0.1
3300p C553
C493
10
0.33 C554
C592 0.
1
C581
NI
C560
0.1
C588
150p
C566
0.082
C582
NI
C587
150p
C583 820p
C992
2200p
NI
C548
C478 22p
0.
1
C570
C475
NI
C519
470p
C501 2200p
C507
6800p
C562
0.
1
C577 0.1
C574 0.1
C520
470p
C506
NI
C509 68p
C518
NI
C516
0.
1
0.
1
C542
C503
5600p
C502
NI
C561
0.1
0.1 C556
C504 NI
C565
1000p
C514
NI
0.15 C547
C508
NI
C568
1000p
0.022 C552
C517
1000p
0.
1
C544
C539
NI
1000p
C510
C512 0.
1
680p C557
C575
0.1
C505 2200p
C540
NI
0.
1
C564
NI
C567
470p C538
C589 470p
C537 820p
VF1 26
SW3 25
D3.3V 24
SW2 23
VF2 22
SW1 21
VT2
20
PSW 19
VT1 18
VREF 17
MD 16
GND 15
HC2-DET 14
LOAD- 13
LOAD+ 12
SP+ 11
SP-
10
FEED+ 9
FEED- 8
GND 7
LD 6
GND 5
TRK- 4
TRK+ 3
FOCUS- 2
FOCUS+ 1
CN502
QGF1049F1-26X
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NI
CN442
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NI
CN441
5
4
3
2
1
QGA2001C1-05
CN472
2
1
NI
CN444
ELECTRIC UNIT-2
To ELECTRIC UNIT-1
CN444
To USB UNIT
CN442
To USB UNIT
CN441
To USB UNIT
CN101
To CD PLAYER UNIT
created date:2012-01-17 No.MA520
(No.MA520<Rev.001>)5/18