JVC KD-R491 Schematic Diagrams page 5

MAIN PWB ASSY(1/2) (XJ1-217x-0x)
Note : The Parts Number, value and rated voltage etc. in the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.
ANT
J600
QNB0356-001
2 1 3
C1600
0.1u
GND6 C2040
TL56
(SIG)
C615 L607 C612
33p 0.15u 0.01u
C614
22p
C610 C602 C609
R605
4.7 12p 10u
L603
0.1u
C608
L604 C607
1000p
1.0u 1p
GND2
C100 C103
0.1u
1u
R100 470
C2038
470p D101 RSB6.8SM-X C104
1u
D100 RSB6.8SM-X C105
1u
CN701
QGZ2006J1-20 GND1
TL92
(AL)
F_AUXL TL93
(AG)
F_AUXG
TL94
(AR)
F_AUXR TL184
(USBGND)
GND
TL27
(P3V3)
PANEL3.3V
TL213
ILLUMINATION TL53
LCD_DATA_SYS
LCD_DATA_SYS
TL135 R709
To SWITCH PWB ASSY (CE) 3.3k LCD_CE
LCD_CE TL130
(LDI) LCD_DATA_LCD
LCD_DATA_LCD
TL212 C2011
(XJ6-115x-0x)
USB_GND
TL152
(LCLK) LCD_CLK
LCD_CLK
TL37 C2033
(GND1)
CN1 USB_GND PON_PANEL
TL138
(VOL2) ENC2
ENC2 TL101
D+
D+ Q701
TL129
(VOL1) ENC1 LTA014YEBFS8
ENC1 TL102
D-
D-
TL34
(5VF)
USB5V
USB5V
TL136
REMO
REMO
TL64
(PDET) PAN_DET
PAN_DET
C2012
SCL_IPOD
GND1
SDA_IPOD
SW1
SW2
SCL_EET
PSW
SDA_EET
DRV_MUTE
SCL_IPOD
DRV_LO_EJ
SDA_IPOD
DRV_CNT
SCL_REG
BCLK
SDA_REG
LRCK
PON_CD
CD_SRDATA_M
DIM_IN
M_SRDATA_CD
FLG_REG
NRST
To MAIN PWB ASSY(2/2)
BLKCK
MLD
STAT
(XJ1-217x-0x) MLD
BCLK
MDATA
LRCK
MCLK
CD_SRDATA_M
CD.R
M_SRDATA_CD
CD.L
PON_CD
MCLK
AGND
CD8V
MDATA
GND7
DCDC5V
CD_GND
SXM_PWR
DRV_CNT
BEEP
DRV_LO_EJ
SW2
BLKCK
SDA_EET
SCL_EET
KRA303E-P
22K
22K
KRC410E-P
4.7K
KRC403E-P
22K
22K
LTA014YEBFS8
10K
47K
No.MA665
*J470
QNZ0907-001
TL98
(SL) T1 T3
TL188 T2 1 2 3 T6
TL100
(SR) T4 T7
4 5 6 7
TL99 T5 T9
T8 8 9 10 T10
11 12
TL88 TL89
(TUR) (TUL) D601
*RA470
UDZV5.6B
10
TU.R
GND6 GND2
TU.L
D602
TL114
X600 UDZV5.6B
L7J-0014-00 R611
100
9.216MHZ SCL_EET
5V
0V
*Q471
C620
10u KRC410E-P
TL113
3.2V
C619
0V
0.1u
C618 1u R601
3.0V 100 SDA_EET 0V
3.3V
VDDA_IFADC SDA
C617 0V 0V *Q470
VSSA_IFADC VSSD_IO KRC402E-P
0.22u C603
2.6V ! 3.3V
VBGP VDDD
1.2V
0V 0.1u
1.5V IC601
1.2V FM_CAP VSSD
TEF6657HN-X
C616 1.5V 0V
FM_IN_M I.C.
1000p 1.2V
0V
1.5V
FM_IN_P I2S_SD_1
3.3V 0V
VDDA_RF I2S_BCK
0V
0V
VSSA_RF I2S_WS
C1601
0.1u
0.1u
R602
!
0.85V C601
82 R600
0V
1k 10u
L601 C605
4.7u 1000p
C606 TL62
C604
9p 1500p (DIST) C600
C2043
28 27 26 25 24 23 22 21 20 19 18 17
AUX-G
IC161
TDA7718C
AUX-R
1 2 3 4 5 6 7 8 9 10 11 12 13 14
AUX-L
C2003
C2002
3.3V
0V
IPOD
*IC411
MFI337S395901
TL60 TL59
TL58
(IP6) (IP5)
(IP3)
TL57
(IP2)
0V NC_4
R411 NC_5
3.3V 0V
NC_3
SCL
3.3V SDA 3.3V
R410 RST
3.3V GND_1 0V
VCC
*C410
0.1
90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
R767
100 3.0V
91 E2P_SCL
R746
R766 100
4.7k 3.0V
92 E2P_SDA
R747
4.7k 3.3V
93 IPOD_SCL
3.3V
94 IPOD_SDA
R763
R1062 100 3.3V
4.7k
R764 95 REG_SCL TEL_MUTE/LINE_MUTE 56
R1063
4.7k 100 3.3V
96 REG_SDA
R748
4.7k (3.3V)0V
97 CD_DSP_SW
R366
3.3V
98 DIM_IN
R365
100k 3.3V
99 FLG
R765
0V
C716 100 Vss
0.1u 3.3V
101 PVcc
L711
(3.3V)0V !
102 MLD
R750 100
R749 47k (0V)0V IC701
103 BCLK
R761
47k R752 100 (0V)0V
R751 47k 104 LRCK
R5S726A0D216FP
R754 10 (0V)0V
105 CD_SRDA_M
R753 1k
(0V)0V
106 M_SRDA_CD
R762
0V
L709 107 Vss
47k R1064
(3.2V)0V
108 MCLK
10
NQR0713-001X 1.25V
C717 109 Vcc
R1065 L710
0.1u (2.0V)0V
110 MDATA
10
NQR0713-001X
111 NC
3.3V
112 PVcc
C718
*R769 1k
0.1u *
113 SXM_PWR
0V
114 Vss
(0V)0V
115 DRV_CNT
R768 68 0V
116 BEEP
(0V)0V
117 SERIAL_NO_MODE/DRV_Lo/Ej
R757 47k
3.3V
118 PCB_TEST_MODE
(3.3V)3.3V
119 DEBUG_2B/FIELD TEST 2/SW2
R758 27k
(0V)0V
120 BLKCK/FIELD_TEST_1
L712
R760
TL193 TL55
47k
(TM)
R840
100 3.0V 0V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
GND
R841 SDA
3.0V 0V
A2
100 0V SCL 0V
A1
WP
3.3V 0V
A0
VCC TL54
(RXM)
C2036 IC841
0.01u
S24C02DIK8002
EEPROM
GND7
TL189
! IC301
JCV8034
TL190
*C472
0.1u
1 3 5 7 9 11 13 15 17 19 21 23 25 27
2 4 6 8 10 12 14 16 18 20 22 24 26
TL306
TL61
(AC)
C368
1u
R271
330
16 15 Q270 P.IC MUTE
KRA303E-P
3.3V
0V
0V
3.3V
3.3V
Q272
R1070 3.3V KRC403E-P
3.3V
1k Q271 C1021
KTA2014P/Y/
FOR DOP REMOTE
CN702
TL307 TL308
TL305
!
RA701
47k
1/16W
0V 3.3V
VCC
CS
1.5V L827
IO3 3.3V D701
DO[IO1] LB73G0BK-006
1.5V 0V
CLK
D702
IO2
0V DI[IO0] 1.5V
GND
C780
W25Q16JVSSIQ C781
IC821
R782
FLASH
R783
D703
3.3V
AVref 60
3.3V
AVcc 59 C710 TL145
R2019
0V 0.1u
AVss 58
DC_ERR1
3.3V
DC_ERR1 57
*R735
0V TEL_MUTE
*R734
R373
*
Stage1 55
*R733
*
Stage2 54 C783 *R732
C782
NC 53 0.1u 0.1u
R731
0V(3.3V) PSW
27k
PSW 52
R730
3.3V 47k
R729
ASEMD 51 R728 15k
D+
0V 22
D+O 50
R726
0V D-
22
D-O 49
R727
3.3V C709
PVcc 48 15k
0.1u
0V
C708
Vss 47
10p
0V
Vss 46
1.6V
XTAL 45 R725 12MHz
3.3k
1.6V C707
EXTAL 44 X701 10p
1.25V L7J-0060-00
Vcc 43 R723
C706 R722
0V 910 270k PAN_DET
470p
PAN_DET 42
HSS_USB
1.25V
PLLVcc 41
C705 L700
0.1u NQR0286-002X TL44
0V (RST)
Vss 40 R721 C892
3.3V 47k RESET 0.1u
RESET 39 R1090
C1002 PON_USB
0V
Vss 38
C704
0.1u
NC 37
3.3V TL191
PVcc 36 C1090
R720
3.3V(3.3V) 27k SW1
SW1/DEBUG_2A 35 10 R756
0V(3.2V)
R755 47k STAT
STAT 34
R716 R402
2.2k REMO
3.3V
REMO 33
R714 *R403
3.3V 1k ENC1
ENC1 32
R712 R715
ENC2
3.3V 1k 2.2k
ENC2 31
R713 C852
2.2k 100u FREQ_SEL
6.3V
TL26
(1V2) C851
0.47u
29 30
4 5
3 2 1
C850
0.47u
RESET
MGND
IC831
R830
BU4228F
100
0V
VOUT 3.3V
GND GND
3.3V 1.7V
CT CT
VDD VDD
S830
S7A-0025-00
GND1
(No.MA665<Rev.001>)5/19
*J321
C2031
4700p
R253
C2032
(FR)
TL82 TL85 TL84
C340 C350 C320 C330 C260 C250
TL81 TL80
(RL)
R341 R351 *R321 *R331 *R261 *R251
22k 22k 22k 22k
GND4
! Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
NOTE:
The parts of the symbols with " * " may vary
depending on model.
Refer to the parts list for details.
C1027
MAIN PWB:J7K-0335-**
1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER
WITHOUT INPUT SIGNAL
CONDITION---FM MODE. AM MODE ( )CD MODE.
2. UNLESS OTHERWISE SPECIFIED.
ALL RESISTORS ARE 1/10W 5% METAL GLAZE RESISTOR.
ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR.
ALL RESISTANCE VALUES ARE IN OHM.
3. DOTTED LINE INDICATED NO MOUNT COMPONENT.
DIM_IN 3.3V Q360
LSCR523UBFS8
R361 R362
0V
33k
0V
TL117
(DIM)
R371
C370
R372
R370
TL118
(TEL)
TEL_MUTE D370
14.3V
10.5V
8.5V
D540
7.0V
6.0V
SK34A-L
13.9V
D903
14.1V
D902
0V
SK34A-L
SCL_REG 3.3V
3.3V
SDA_REG 3.3V
D905
5.1V
TL25
(S3V3) R905
FLG_REG 3.3V
100 3.3V
C1051
IC891
TL31
BD2242G-G
(DCF)
5.2V 5.0V
OUT
IN
0V 0V
ILIM
GND
3.3V 3.3V
OC R1051
EN
R401
REMO R904
C893
R894
0 10u D400
RB521SM-30 R900
47k
1/4W
DCDC TL21
L990
D861 (MEM) L3D-0045-00 REMOTE OUT
R1080
C874
0 SMD24PL
470p
C990
C875
2200u
4700p 16V
TL105 TL106 C870
IC861 15p
(FBF) (FBF1)
MP9942AGJ
R864
39k
FB FB 0.792V
PG PG
14.0V 4.8V
VCC VCC
IN IN
5.2V
EN/SYNC EN/SYNC 1.6V C869
TL38
SW SW R861 0.22u
0V 9.8V (GND2)
BST BST
GND GND 20 GND1
GND2
C863
GND3
0.22u
GND4 TL67
GND6 (OE)
GND7
C864 0.1u
TL66
(REM)
TL109
(BUP)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
*POWER CORD ASS'Y
created date:2017-09-25
22k
68k
!
IC901
LV5685PV-H
EXT
ANT
ILM
AUDIO
CD
ACC
VCC2
VCC1
GND
SCL
VDD
SDA
V6IN
FLG
TU3.3V
TL65
(A.ANT)
GND3
TL142
(ACC)
17 18
CN990
!
E5J-0139-00