JVC KD-R420J Service Manual page 26

<Main section 1 (J,UI,U,UH,UN,UT,UF)>
J1
QNB0190-001
3
2
ANT
1
TOMIC
32 31 30
FM/AM
TUNER
*
*
R3
R10 1 2 3
( )
( ) L2
C26 C1 C2 7p
470p L8 1000P
1.8u
L1 C3
4.7u
1 2
0.47u
C27
2p 1000P
8
* 6
L3 C5 C7
0.27u 15p
27P
L4
QQR1872-001
CD.R
S.GND
CD.L
A9V
PON_CD
VDD5V
S.GND
CMDREQ
BSIF_REQ
DATA
GATE
BCK
LRCK
CMDSO
To Main section 2 CMDSI
CMDBUCK
(J,UI,U,UH,UN,UT,UF)
CMDCCE
CDRESET
SRAMSTB
CDMUTE
BTLGND
CD8V
FWD
REV
DRVMUTE
SW3
SW1
SW2
PSW
HC1-2
D100,D101,D110,D111:DZ2J062/M/-X
D100 D101
( ) ( )
( ) ( )
C101
D110 D111 R100
0 1
C102
R102
0 1
D102,D112:DZ2J068/M/-X
C111
R110
0 1 D102
AUX-L 1 3.3V 3.3V
C729 Q701
AUX-R 2
4700P RT1P144C-X
C730
AUX-G 3 4700P 0V
D.GND 4 C711
R786
0.1
3.3V 5
10K
10V 6 C708
0.1
REMOCON 7
To LCD & Key section
NC 8
VOL1 9
(J,UI,U,UH,UN,UT,UF)
VOL2 10
LCDCL 11
CN601
LCDCE 12
LCDDA 13
D719 D720
USBGND 14
D+ 15
D- 16
R922 0 L101
USB5V 17
R902 R903 NQR0499-001X L102
USB5V 18 ( ) ( ) (
C722
KEY0 19
10 C726
KEY1 20
C963 NOT USED
NOT USED
J120 R120 C121 1 RAUX-R
NQR0007-002X
QNS0307-001
C122
R122
3 RAUX-G
G NQR0007-002X 1
2
R130 C131
R RAUX-L
1
L NQR0007-002X 1
D123 D132
D120,D121,D130,D131:DZ2J062/M/-X
No.MA478
C8
SDA
( )
L12
R6 220 NQR0251-002X
SCL
R7 220 L11
NQR0251-002X
29 28 27 26 25 24 23 22 21 20 19 18 17
IC1
TEF6614TV1S4-X
!
4 5 6 7 8 9 10 11 12 13 14 15 16
3
4MHz
!
7
C15
4 (1/10W)
R168
X1
0
0.1 QAX0952-001Z
TU.R
TU.L 28 27 26 25
CD
TUNER
1 2 3 4
!
DETAIL DEBUGGING
USE ONLY
FAUX-L
C733
FAUX-G 10
C712
FAUX-R
0.1
D112
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
C702
10p
X702
C701
10p
QAX0401-001
PON_PANEL
3.3V
X701
81 CVCC3
C718 0.47 C724 QAX0957-001Z
1.5V
82 X1
REMOCON
18p R721 0V
1M 83 CVSS
RGBCLK C725 R782
1.5V
84 X2
VOL1
C705 0.1 18p 820 3.3V
85 DVCC3
VOL2
0V
86 DVSS
LCDCL R789 27
R775 15k D+ 0V
87 D+
LCDCE
D- R790 27
R776 15k 0V
88 D-
LCDDA
CPU
89 /NMI
90 NO USE
D+
91 NO USE ! IC701
D- R737
RGBCLK 0V
R759
( ) 92 RGB_CLK JCV8019
( )
VOL2 3.3V
R757 3.3k
93 ENC2
) 3.3V
KEY0 94 AVCC3
C716 0.1
TELMUTE 1.48V
KEY1 95 TEL MUTE
1.8V
TP15
96 STAGE 2
0.57V
97 STAGE 1
R763 4.7k 3.3V
R732
98 KEY2 (STBY)
4.7k
KEY1 2.6V
99 KEY1
KEY0 R724 3.3V
100 KEY0
R762 4.7k 4.7k
* R765
* R767
* R764 TP12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
* R766
STAGE
CONT
L703:NQR0502-001X
TEST3
TEST2
*
3.3V
RST GND
LINE OUT
*
J321
C331 C351 C321 C341
100p 100p 100p 100p
R373
0
R331 R351 R321 R341
C368 R320
22k 22k 22k
( ) R350 22k 330
330
R330
330
4 5 6 4 5 6
3 2 1 3 2 1
R353
0
R343
0
NOT USED FOR KD-R420 SERIES
NOT USED FOR KD-R45E SERIES & KD-R47EE
24 23 22 21 20 19 18 17 16 15
FRONT AUX
REAR AUX
5 6 7 8 9 10 11 12 13 14
NOT USED FOR KD-R420 SERIES
IPOD CP CIRCUIT
C80
0.047
IC80
MFI341S2313-X
R740 10k
R741 10k VSS VCC
SCKCP
SCL nRST
SDACP
SDA NC
R82
MODE0 MODE1
100
3.3V SW2
SW2 50 IC931
L701
3.3V SW1
4.7u
SW1 49
4.6V 4.6V
2.5V PSW
PSW(RST SW) 48 CTRL VIN
3.3V AMP_MUTE 0V 3.3V
C703
AMP MUTE 47 C731 GND VOUT
0.01
0V MUTE
0.1
RCA MUTE 46
XC6213B332NG-X
NO USE 45
(3.3V) HC1_2 VDD3.3V C931 C932
HC1_2 44
0.1 330/6.3
AMP_STBY SW3.3V
NO USE 43
3.3V 3.3V
3.3V DIMMER_IN
AMP STBY 42
3.3V R744 47k R952
2.6V
DIMMER 41
TF2 SN
R742 47k 330
IPOD SELECT 40
3.3V
0V
PNO_FL 39
0V Q952
4.9V
NO USE 38
0V TF1 C714
NO USE 37 RT1N441C-X
0V
0V
TELMUTE 0.1
DVSS 36
R718 47k
3.3V
DVCC3 35
R743 47k
0V
NO USE 34
3.3V OFFSET2
DIMMER_IN
NO USE 33
0V PON_PANEL
BU_DET
PON_PANEL 32
3.3V R773 L985
REG1-1 31 R493 C984
4.7k NQR0502-001X
D982
RKS801KF-X 0.1
L981 15
22
(1/8W)
5.1V
TEST1
D981 SW BST
3.3V
23 24 25 26 27 28 29 30 DB22306X EN VIN
0.8V
COMP FREQ
0.8V
FB GND
R981
!
USBPON
180K
IC981
OC
( ) MP2562DS-X
FREQ_SEL
C988
R747 24k 0V
IC771
R1EX24002ASAA-X Q981
RT1N441C-X
0V
3.3V
R746 SDA GND
L983
3.3V
47k
SCL A2
NQR0499-001X
0V
WPIN A1
DC-DC USB5V & HSS
3.3V
NOT USED
4 3 VDD A0
C723
0.047
1 2 EPROM
RESET
R962
270
(1/8W)
(No.MA478<Rev.001>)4/23
MAIN PWB: GEB10301A
NOTES 1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL
C254 C253 CONDITION---FM MODE. AM MODE ( )CD MODE.
2. UNLESS OTHERWISE SPECIFIED.
100p 100p
ALL RESISTORS ARE 1/16W 5% METAL GLAZE RESISTOR.
ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR.
ALL RESISTANCE VALUES ARE IN OHM.
R256 R255
ALL CAPACITANCE VALUES ARE IN uF(P=pF)
22k
22k
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
3. COMPONENTS IN () INDICATE NOT USE.
R254
330
KD-R426U Series
KD-R425U Series KD-R45E KD-R421E Series
4 5 6 * MODELS KD-R428J KD-R420J KD-R47EE KD-R427EE
KD-R424UI Series KD-R422E Series
KD-R428UF
R764 NI 39K 33K 27K 27K 33K
47K 8.2K 15K 22K 22K 15K
R766
STAGE
3 2 1
R765 NI NI 39K 39K NI NI
SETTING
R767 47K 8.2K 8.2K 47K 47K
47K
R253
POWER CORD ASSY QAM1329-001 QAM1326-001 QAM1328-001 QAM1344-001 QAM1345-001
330 D781 BAW56-TP-X NI
Line Mute
Q780 RT1P241C-X NI
Lineout Jack J321
QNN0864-001 NI QNN0864-001
NI
R777 1K NI
OE Remote
Setting D704 DZ2J062/M/-X NI NI
27K
R785 22K 22K
L10 NQL103J-10NX NI
Tuner R9 NI 0 ohm
C28 10P NI
C166 NI
C178 NI
L161 0 ohm
POWER AMP.
R307
R306
0
BEEP ( )
RR-
C301-C304:QTE1C66-474Z
RR+
C305-C308:NCB21CK-474X-A
C312
C306
0.47 FR-
FROUT N C302
0.47
FR+ QTE1C57-226Z
C305
0.47
RROUT N C301 C309
0.47 22/16
C307
0.47 C303
RLOUT N
0.47
C310 10/16
C308
FLOUT (1/8W) QERF1CM-106Z-E
0.47
N C304
R310 C313
0.47
10
FL+ 1
NCB21AK-105X-A
FL-
R302
47k
RL+
LINE MUTE
RL-
R783 R303
100K
( )
3.3V R780 47k
Q782
RT1P241C-X
D782
3.3V RKS801KF-X POWER IC MUTE
0V R781 330
0V
* L901
D783
BAW56-TP-X
QQR1884-001
Q781 *
RT1N241C-X
!
REMOTE OUT
REGULATOR IC901
LV5680P
!
D941
MBRX130-TP-X
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
*
R907
FOR U VERSION ONLY
270K
R909
ANT
27k
Q951
2SA812A/5-6/-X
ILMI
*
R894
0
10k
10k
R973 22k
20k
D970
10V
DZ2J068/M/-X
R971 R976
14.4V 10k 22k
0V 2.9V 68k
D971 (1/10W)
0V
DZ2J068/M/-X
0.6V 0V
0V
0V R972 0V R975
10k 47k
(1/10W)
10k
0V
BU DET SURGE DET
0V
C980
IC961
/OC EN
! Parts are safety assurance parts.
GND
VOUT
VIN
When replacing those parts make
sure to use the specified one.
R961
0
C962
100/6.3
created date:2010-11-08
KD-R521E
KD-A525J KD-R520J
Series
33K NI NI
15K 47K 47K
27K 47K 27K
22K NI 22K
QAM1329-001 QAM1326-001
BAW56-TP-X
RT1P241C-X
QNN0868-001 QNN0866-001 QNN0868-001
1K NI
DZ2J062/M/-X
NI
27K 22K
NQL103J-10NX
NI
10P
0.1uF
47ohm
NQL553J-27NX
!
IC301
TB2926CHQ
0V
TAB
0V
GND
7.1V
OUTRR-
5.0V
STABY
7.2V
OUTRR+
14.4V
( )
VCC2
7.2V
OUTFR-
0V
GND
7.2V
OUTFR+
8.5V
RIPPLE
6.9V
INFR
6.9V
INRR
0V
PRE-GND
7.0V
INRL
7.0V
INFL
7.0V
AC-GND
7.2V
OUTFL+
0V
GND
7.2V
OUTFL-
C311
14.4V
( )
VCC2
7.2V
OUTRL+
5.1V
MUTE
7.2V
OUTRL-
0V
GND
3.3V
OFFSET
C314
1
( ) ( )
R305 TH301
* R777
!
*
RT1N141C-X
RT1N241C-X
47k
RT1N441C-X
47k
RT1P144C-X
47k
22k
RT1P241C-X
22k