Electric Unit - JVC KW-R900BTJ Service Manual

ELECTRIC UNIT-1

FM/AM
TUNER
J1
QNB0190-001
IC1
!
TEF6614TV1S4-X
*
*
R3 NI
C1 L1 1.8
L2
0.47
0.001
C8
2p
C2
C7 7p
L8
470p 4.7
C990
27p
L3 C5
C993
0.27 15p
NI
C991
NI
C234
C204-C207,C214-C217: QERF1EM-475Z-E
4700p
C223
R211
D201 C214
0.1 820
4.7/25
C204 R201 820
NI
4.7/25
DZF AOUT3R R212
C215 820
2.4V
4.7/25
PDN AOUT3L
0.0V R202
2.4V C205
QTE1C57-106Z VSS3 AOUT2R 820
C224
3.3V 2.4V 4.7/25
10/16 C216 R213
SDA AOUT2L
0.0V 2.4V
4.7/25
C225 SCL AOUT1R 820
R203
0.1 2.4V C206
CLKO AOUT1L 4.7/25
C235 4.8v
1000p 4.8v 820
DVDD VREFH
C208 C218
0.0V 1000p 1000p
12p
C226 BICK VSS1
4.8v C209
2 1 LRCK AVDD
100/6.3
2.4V
QEKJ0JM-107Z-S
SDT01 AINR
2.4V
SDT02 AINL
2.4V
SDT03 VCOM
3 4 2.1v 0.0V
XTI VSS4
2.1v
C227 1.8v
XTO REF1B
R206 0.0v 0.0V
VSS2 TSTI
12p
1.5K
C233
27p
IC201
AK7600VF-X
AUDIO DSP
HC2-DET
CD.L
CD.L
AGND
CD.R
CD.R
To ELECTRIC UNIT-2 SW1
SW1
9V-TCC
9V-TCC
CD8V
CD8V
C105
8p
GND
GND
MIC R98
MIC MIC+
10k
MIC PREAMP
C91
CIRCUIT
NI C93
1.2k
CN90
R103 IC90
QGA2001F1-02 1 R94
0 C102
C92 GND
1.2k 4.1V 0v 0.033
1
R93
2 R102 1 4.2v 4.1v
0
R97
8.2K
4.2v 4.2v
C90
NI
0 R104 C734
8.3v 4.2v
MIC-
VCC
NJM4565E-X
CN701
QGB1004K1-24 R91
NI
1
USB_5V
2
D-
3 USB_5V
D+
4
USB_GND
5 UH0- C731 2SA812A/5-6/-X
USB_GND
UH0+
6
0.047
7
KEYDATA KEYDATA
8 C732
REMOCON
0.047
9
DISPDATA
10 DISPCLK
To SWITCH UNIT DISPDATA
11
DISPCLK C733
10/25
CN601 12 DISPCE
DISPCE
13 RST
DISPRST
14
RESET Q702
15
0V
VDD3.3V 3.1V
16
REMOCON
17
10V R770
0V
18
RESET 470k 0V
19
3.2V
20
R708 0 3.2V
AUX_R AUX_R D722
21 BAW56-TP-X
C736
1 AUX_G
AUX_G
22 1
R709 C737
AUX_L AUX_L R704 NI
23 C738 1
0
24
D711-D713: RKZ6.2B2KG-X
C745
NI
CH.R
CH.L
* JVC BUS
R809
6.8K
J801
R811
QNZ0095-001
CHANGER CONTROL 100K 3.2V
4.9V
J-CLK Vdd
0V 4.9V
4 3 2 1 C802
0V 0V
A-GND
8 7 6 5 R810
NI 0V 0V
100K
12 11 10 9 0V 0V
R807 0V 3.1V
13
100 0V 0V
15 14 GND
IC801
J-DATA 74AHCT126PW-X
MMRY
No.MA520
R5 & R8
R268
USE 1/10W 33k
EACH
R6
220 R14 3.3k
R261 22k
R15 3.3k
R7
C264
220
0.1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
C261
4.7/50
C262
10/25
C271
4.7/50
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
C3 0.001
C274
0.1
R271 22k
C15
C22
12p
X11 C30
0.1
QAX0952-001Z
56p
L4
QQR1872-001
QEKJ1CM-107Z-S
C168
100/16
1000p QEKJ1HM-225Z EVFL
C199
C211 8.3v EV-FL
1800p
2.2/50 R181
C201
0
1800p C169
C189
C212
1800p 2.2/50
QEKJ1HM-225Z
C202
1800p 3.3v 3.4v DCERR
DCERR
ACIN2R
3.3v OFFSET
WININ 4.5v
ACIN2L
EVRL EVRL
3.3v 3.3v MUTE2
ACIN1R MUTE2
MUTE1
3.3v 3.3v EV-RL
ACIN1L MUTE1
IC161
3.3v 3.3v MUTE0
1800p ACIN0R TDA7716N MUTE0 R182
MUTEA
C203 3.3v 3.3v 0
ACIN0L E.VOLUME MUTEA
R171
0 3.3v 3.3v
ACOUTR SE1R
C213
R161 0 3.3v 3.3v
1800p ACOUTL SE1L
EV-RR
3.3v 3.3v 0
C217 SE2L SE0R
R191
4.7/25 3.3v 3.3v
SE2R SE0L EVRR
C207
0v
EVRR
4.7/25 DCSEL QD1R
NQL553J-27NX
L161 EVFR
EV-FR
* *
1000p R192
0
C170
C178
47/16 2.2/50
QEKJ1CM-476Z-S QEKJ1HM-225Z-S
NI
Q231
R231 NI (1/10W)
R232 NI
(1/10W)
C726
NI
C727
0.047
D231
NI
5V DSP REG
L201
47
NI
RXM
TXM
ACC5V
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
Q701
3.3V
2.6V PS2
*
R748
76 NC FLAG1
R747 0V FLAG0
77 NC
FOR
* 78
KD-R820 STAGE1
R742
0V
SERIES 79 NC
47K
ONLY 3.4V
80 DCERR
LEARN1
DISP. 3.3V
81 LEARNING1
MICON LEARN2 3.3V
RST 82 LEARNING2
R752 47K
CIRCT 3.3V
83 EJECT
!
* 3.3V
DETACH
84
R756 10K
0V 0V VOL-CLK
85 NC
CPU
R766 10K 0V
VOL-DA
86 NC
0V
0V
D721 87 OPEN IC701
MC2838-X DSPRST
EEPROMDI 3.3V
EEPROM-DI
88
R758 10K UPD78F1168GS
3.3V
89 EEPROM-D0 CDON
DISPCE R761 3.9K 3.3V
/BUS-I/O
90
DSPRST
0V
91 DSPRST
/BUS-I/O R759 1K
0V DISPCE
92
BUSSCK R762 0 0V
93 BUS-SCK STEERING REMOTE
BUSSI R763 4.7k
0V
94 BUS-SI ANT CONT
BUSSO R764 4.7k 3.3V
95 PIC-STBY
BUS-SO
BUS-I/O R765 1K 0V
POWER
96 BUS-I/0
* MUTE.CTL 3.3V
97 USBMUTE CONT DIMMER IN
TRST R767 1K 3.3V
CLIPDET
98 USB RESET
USBRX 3.3V
99 USBTX SUBMUTE
USBTX
3.3V USBRX
100 MUTING
BUS-I/O
EEPROM
BUSSCK
IC771 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
/BUS-I/O BR24T02FJ-W-X
R814 BUSINT
C771
3.3V
0 0V 0.047
A0 Vdd
0V 0V
A1 WPIN
0V
0V R772
A2 SCL
0V 3.3V 270
GND SDA
R801
BUSSI R771
270
3.9K
R702
BUSSO
10M
R804
R712
100
OE-REMOTE 100
STEERING
REMOTE
1 2 3
X701
NAX0647-001X
LINE OUTPUT &
SUBWOOFER OUTPUT
J321
QNN0877-001
C341
3 1
7 6 5 2
SUBWOOFER 5V AMP
SUBWOOFER
MUTING
R262 33k
CIRCUIT
IC271
NJM2160BV-X
C385
R352 330
10/25
C266
C386
R342 330 10/25
8.3V 7.6V
C365
VCCL +CL 10/25 R332 330
10/25
2.8V 0.7V
+LIN -CL C366
R322 330 10/25
4.2V 0V
CRPL GNDL 0V 0V
0V 0V
2.8V 7.0V 0V 0V
-LIN LOUT
2.8V 0V 0V
7.0V 0V 0V 0V 0V
-RIN ROUT
0V
4.2V 0V 0V
CRPR GNDR 0V 0V 0V
2.8V
0.7V
+RIN -CR 0V
8.3V 7.6V Q261 IMX9-W Q332
VCCR +CR
IMX9-W Q322
IMX9-W
R272 33k
R278
D321
33k D331
BAW56-TP-X BAW56-TP-X
R785
D261 R786
BAW56-TP-X LINE OUT
0
0
MUTING
CURRENT CONDITION: SUB-MUTE AND NORMAL MUTE
IS COMBINED. BUT POP NOISE MIGHT OCCUR.
IF SUB-MUTE NEEDS TO BE SEPARATED FROM
NORMAL MUTE, WE NEED TO:
OUTFL
REMOVE R786 (3 PAIR)/ REMOVE R785 (2 PAIR)
ADD D781,Q781
R185 E-SL
470
E-SR
R195
C370
470
IC361 0.0015
C367
220/10 0V 7.6V
GND CIN1
R381 R382
OUTRL 0.9V COUT1 7.2V
RLOUT
R362 R361 33k 22k
7.1V 2.8V
FLOUT FB2
C381
22k 33k
2.8V FB1 RLIN 2.8V
C361 C371
OUTFL 2.8V 8.3V 4.7/50
FLIN V+
4.7/50
C369 C382 0.1
4.2V REF RRIN 2.8V
C362
OUTFR 22/16 2.8V 2.8V 4.7/50
OUTRR FRIN FB4
R385 R386
4.7/50 2.8V 7.1V
R366 FB3 RROUT
33k
R365 7.0V 7.6V 22k
22k FROUT CIN2
33k
0.9V 0V
COUT2 GND
C368
220/10
OUTFR
NJM2792V-X
L162
L/O 5V AMP
10
SW3.3V
FR.USB5V
MUTING CIRCUIT
Q782
DRA2114E-X
3.3V
0V
Q781
L701 NI 3.3V
3.3V
0.1V
4.7
SBMUTE
SUBMUTE
MUTE
RESET MUTE
RESET
C723 C729
0V
330/6.3 NI
C722
! IC901 LV5680P
0.01
VDD
1 2 3 4 5 6 7
0V
50
0V
49
0V CTRL
NC 48
NC 47 R904 R906
NC 46
C920 270k 27k
C916 C912
NC 45
NI 3300p NI
NC
44
0V
GND 43
NC
42
VOLCK
0V
41 R726
22K
3.3V VOLDA
40
2.2K STEERING
R797
NC 39
NC
38
R728
0V(3.3V)
37
IC902
3.2V R727 2.2k
ILM
36 MBRX130-TP-X
PS1 R725
3.1V 2.2k 4.9V 4.9V
PS1 35 CTRL VIN
D851
0V PS2 39K 0V 3.3V
PS2 GND VOUT
34
3.3V R722
33
3.2V ANT R724 XC6213B332NG-X
2.2k
32 AUTO
2.2k *
0V PIC-STBY ANTENNA
31
3.2V R723
30
3.3V 2.2k
29
POWER
CLIPDET
3.3V LEARN2
28
FOR U VERSION ONLY
0V SBMUTE
27 LEARN1
4.5V
26
MUTE
C721
* REMARKS
RESET
CN702
0.047
NI
POWER CORD
1 MICON STAGE SETTING = R747 (L)/R748 (H)
L10 / R9
2
AUTO ANTENNA CIRCUIT
3
JVC BUS CIRCUIT, R759, R762, R763,R764, R765, C163, C173
VSS R719
47k
C743
RESET
NI
FLMDO
NI
C720
MAIN PWB:GEB10326A
(No.MA520<Rev.001>)4/18
NOTES
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 1/16W 5% METAL GLAZE RESISTOR.
ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR.
ALL RESISTANCE VALUES ARE IN OHM.
ALL CAPACITANCE VALUES ARE IN uF(P=pF)
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
3. COMPONENTS IN ( ) INDICATE NOT USE.
IC932
RLO
RT9715EGB-X
RRO
3.3V
EN /OC RE.USB5V
FLO 0V
5.2V GND
VIN VOUT
FRO 5.2V
C948
0.01
USB5V
IC941
! USB5V
BD9673EFJ-X
EN0 UH0+ UH0+
D941 UH0+
RB051L-40-X NQLH25M-4R7X
QQL92AK-220Z UH0-
5.2V 14.4V UH0-
UH0-
LX IN
L941 0V K941 R923
GND BST USBTX USBTX
UTX
1.2V 3.3V 0
VC EN USBRX R922 USBRX To ELECTRIC UNIT-2
1.0V 1.6V EN1
URX
FB SYNC 0
TRST TRST
TRST
MUTE.CTL MUTE.CTL
C947 MUTE.CTL
6800p USB3.3
USB3.3V
R943
GND GND
10k
SW3.3V
SWREG R944
1k !
IC921
C939 EN
150/6.3 4.9V
C938 EN NC
0.01 0V
NC GND
0.8V
POWER AMP.
! IC931 NC FB
3.3V
D931 VCC OUT
BD9673EFJ-X 5.2V
RB051L-40-X
QQL92AK-220Z NQLH25M-4R7X IN IC301
!
5.2V 14.4V
LX IN BD00GA3WEFJ-X TDA7851A
K931
L931 0V
GND BST
1.2V 4.4V
VC EN 0V
1.0V 1.6V TAB
FB SYNC
4.6V
OFFSET
!
F902 0V
C937 GND
NMFZ018-3R0X-E
6800p RR-
7.1V
OUTRR-
R933
C325 4.9V
10k STBY
NI
RR+ 7.1V
R316
OUTRR+
C320 14.4V
10k VCC1/2
C324
CLIPDET FR- 0.022 7.0V
R317 NI
OUTFR-
4.7K
R934 QTE1C57-476Z 0V
SWREG
C317 GND
FR+
OFFSET 1k 47/16 7.0V
OUTFR+
7.0V
BUZZER C335-C338: NCB21CK-474X-A SVR
OUTFR C301 QTE1C66-474Z R301 1K 6.9V
C335 0.47 C305 82P
C332 INFR
N
OUTRR C336 0.47 C302 QTE1C66-474Z NI R302 1K 6.9V
N C331 C307 C303 C304 INRR
0V
NI 0.01 56p 56p
S-GND
QTE1C66-474Z C334 C308 C313 C314
OUTRL C337 0.47 NI R312 1K 0.01 56p 56p 6.9V
C312 INRL
C333 C306
N 1K
OUTFL C311 QTE1C66-474Z NI R311 R309 10/16 6.9V INFL
C338 0.47 C318
1 7.0V
PIC-STBY N R310 (1/10W) 10 AC-GND
C310 82P
4.7k FL+ 7.1V OUTFL+
R307 NCB21AK-105X-A
0V
4.7K R306 QERF1CM-106Z-E GND
C323
NI
FL- 7.1V
10k OUTFL-
C319 14.4V
VCC3/4
0.022
RL+ 7.0V
R304 4.7K OUTRL+
C315 4.5V
C322 MUTE
SW5V
NI 1.0
RL- 7.0V
OUTRL-
0V
PW.IC MUTE
GND
3.3V
VDD3.3 CLIPDET
BATT DETECT PS2 TAB
0V
4.8V
R973 20k
D970 0V
RKZ6.8B2KG-X
0V
Q301
PS2 DRC2114E-X
3.0V
0V RKZ6.8B2KG-X
D971
0V
L901 C961
QQR1883-001 470p
0V C962
0V 470p
Q970
C963
470p
C964
2SC1623A/5-6/-X
470p
C965
REGULATOR
470p
C966
470p
C967
470p
C968
470p
8 9 10 11 12 13 14 15
D981
MBRX130-TP-X
R901
10k
L902
(1/10W)
NQL79GM-101X
DIMMER INPUT
Q881
DRC2114E-X
3.3V R882
47K
0V
0V
*
To SPK,
BATTERY, GND *
22K
KW-R900BTJ KW-R900BTU
RT1N241C-X
5V 5V
22K
QAM1331-001 QAM1332-001
NOT USED/10K 10K/5.1K
22K
USED/NOT USED NOT USED/USED
NOT USED USED
RT1P241C-X
USED NOT USED
22K
10K
RT1N141C-X
10K
10K
RT1P141C-X
10K
! Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
created date:2012-01-17