JVC KD-A305J Service Manual page 60

Main section
J1 QNB0190-001
TOMIC
ANT
32 31 30 29 28 27 26 25 24 23
IC1
TEF6606T/V3-X
C2
7p
C6 2p
L8 1 2 3 4 5 6 7 8 9 10
C1 L1 L2 1.8u
4.7u 0.001 0.47u
( )
R3 82 C3 L4
1 3
0.001
L3
0.22u
C5 6 4
* *
15p C7
22p
*
CD8V
BTL_MUTE
TRAV
CD-R
AGND
9V
CD-L
VDD_5V
SW1
SW2
PSW
C702
120p
NPWDOWN
( )
FWD
REV
NRST
IRQ
STAT
MLD
MDATA
MCLK
RFGND
NFLCK_MON
SW5V
AUX-L
L122 NQR0007-002X
1
L120 NQR0007-002X AUX-R
2
L121 NQR0007-002X AUX-G
3
R122
GND
4
ACC5V
470
5
100K
10V R740
6
REMOCON
7
RGB_CLK
8
VOL2
9
VOL1
10
LCDCL
11
LCDCE
12
LCDDA
13
KEY0
14
KEY1
15
D715 D717
UDZW6.2B-X UDZW6.2B-X
D716 D718 JVC BUS
UDZW6.2B-X UDZW6.2B-X
BUS-I/O
CH-R
R803 BUSSCK
CH-L
6.8K
/BUS-I/O
R804
J801
3.9K
QNZ0095-001 R802
3.2V 5.0V
CHANGER CONTROL Vdd
100K 5.0V
0V
JBUS-SI/SO
AGND
0V 0V
R807 R810
6 5 4
0V 0V BUSSI
100K 3.9K
0V 0V
8 7
SI/SO R808
0V 0V BUSSO
3 2 1 R814
0V 0V
100 GND
100
R819
47K
JBUS-SCK C801
IC801 R811
0.047
6.8K
FOR KD-A305J ONLY
74AHCT126PW-X
STEERING
J702
REMOTE
QNS0283-001
3
2
1
FM/AM
TUNER
R6 100 R16 4.7K
4.7K
R7 100 R17
C9 100p
22 21 20 19 18 17
( )
C8 100p
( )
11 12 13 14 15 16
* *
4MHz
C15
X1
QAX0928-001Z
0.1
28 27 26 25 24 23 22 21 20 19 18 17
E.VOLUME
*
IC161
BD3700FV-X
TU.R
TU.L
1 2 3 4 5 6 7 8 9 10 11 12 13 14
TU.R C161 0.1
TU.L C171 0.1
C165 C175
QTE1H57-105Z
CD-R
C162 1/50 0.01 0.01
R162
R161
CD-L
47k 47k
C172 1/50
QTE1H57-105Z AUX-G AUX-L
R731 100K
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
LCDDA R736 560
0V
76
LCD/RGB_DATA
LCDCE R737 560
0V
77 LCD_CE
LCDCL R738 560
0V
78 LCD_CLK
VOL_SDA
5V
79 EVOL_SDA
VOL_CLK
5V
80 EVOL_CLK E2PROM_CLK
R739
RGB_CLK 560
0V
81 RGB_CLK E2PROM_DO
TUSDA 5V
82 TU_SDA E2PROM_DI
83 NC
TUSCL 5V
84 TU_CLK
STEERING
0V
85 STEERING_REMOTE NPWDOWN
R746
0V
86 PS2
100K CPU
87 NC
R747
REMOCON
5V
88 REMOCON
IC701
10K
5V
89 VDD5 VDD18
C708 2k MN101E16YFA
R748 5V
0.1 ( ) 90 POWER
R759
0V
91 VSS
2.2k
MUTE
5V
92 MUTE MDATA
R757 2.2k
R727 2.2k 0V
( ) 93 CD_ON BUS-SCK
R754 2k
SUB-MUTE
5V
94 SUB-MUTE BUS-SI
R750
2k 5V
( ) 95 ILM BUS-SO
MODE2 R751 2.2k
0V
( ) 96 ANT BLKCK/IRQ
4.7K 5V
KEY0 R752
97 KEY0 BUS-INT
5V
KEY1 R753 4.7K
98 KEY1 /BUS-I/O
99 NC BUS-I/O
5V
100 VREF+
R755 4.7k
R756 4.7k
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
3.3V
ANT
L702
C717
4.7u
0.1
C719
DA 100/16
R704 100K
CL C722
4.7/50
R703 100K
GND
( ) ( )
R713 R715
NI NI
RST
R711
( )
*
* 47K
NI
*
R708
100k C718
0.1
* X701
QAX0667-001Z
LINE OUTPUT &
SUBWOOFER OUTPUT
* J321
D351
NAF0029-001X
LINE OUT
D341
NAF0029-001X
R352 820
R342 820
4 5 6
Q341
IMX9-W
3 2 1
R344
2.2k
R386 22K R388 33K
C388 0.0015
C392 0.1
IC381
NJM2160BV-X
9.1V
C384
16 15 0.8V
3.1V
4.7V 0V
4.7/50
C393 3.1V
7.9V
7.9V
3.1V
47/16
0V
4.7V
C383
0.8V
3.1V
9.1V 8.3V
4.7/50
C387 0.0015
R385 33K
R389
22K
5V LINE OUT AMP
FOR KD-A305J ONLY
R781
47K
D782 5V
MA111-X 0V
EPROM R782
4.7k
0V
IC771 L701
4.7u
S-24CS04AFJ-G-X
0V
3.3V
SDA GND
3.3V
SCL A2
0V
C707
WPIN A1
100/16
3.3V
Vdd A0
C771
0.047
NC 50
MODE2
NC 49
NC 48
0V
NC 47
MUTE 5V
3.3V
46
3.3V
45
5V
R723
3.3V
44
C781 220/10
10K D781
NC 43
NC 42 MA111-X
NPWDOWN
0V
41
0V NRST
NRST 40
0V
VSS 39
13.6V 13.3V
0V MLD
MLD 38
1.8V
C721 2SB1132/QR/-W
37
0.1
12.9V
0V MCLK
MCLK 36
0V STAT
STAT 35
0V MDATA
34
0V
R721 1K BUSSCK
0V
33
ANT 4.9V
R720 1K BUSSI Q922
0V
32
RT1N141C-X
R719 1K
0V BUSSO
31 0V
0V IRQ
30
R718 1K BUSINT
0V FOR U VERSION ONLY
29
R717 1K /BUS-I/O
3.3V
28
R716 1K
0V BUS-I/O
27
NC 26
R774 10K
47k
UN2211
RESET
RT1N141C-X
10K
D712
MA111-X
10K
UN2111
RT1P141C-X
2 1
10K
3 4
MAIN PWB
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.
R383
47k
R387
47k
C385 4.7/50
SUBL.RL
C386 4.7/50
SUBR.RR
0V
Q785
5V
RT1P141C-X
5V
C785
100/6.3
BEEP
FR-
FR+
C301 0.47
QFV91HJ-474Z
RROUT RR-
RR+
FROUT C302 0.47
C304
QFV91HJ-474Z C303 100p
100p
C313
100p
C314
QFV91HJ-474Z C318 22/16
100p
C312 0.47
RL+
C311 0.47
QFV91HJ-474Z
RL-
R305
D785 1K FL+
MA111-X
FL-
R783
10K 0V
13.6V
Q976
Q784
RT1N141C-X
RT1P141C-X
0V Q977
R977
ISA1530AC1/R/-X 12k
5.5V 5.5V
(1/10W)
0V
5.0V R976
27k
(1/10W)
IC901
REGULATOR
AN34001A
D971
MA22F20-X
R901
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1k
(1/4W)
B901
0
CN901
QNZ0607-001
Q921
POWER
ANTENNA
FOR U VERSION ONLY
MODEL(S)
KD-R300J KD-R405U/R406U
ITEM(S) KD-A305J
* REMARKS
2.2K 0 OHM
Steering R770
Remote
R773 22K 47K
R709
Stage USED USED
Setting
R708 NOT USED NOT USED
B105,B106 NOT USED USED
Line-Out
J321 QNN0832-001 QNN0802-001 QNN0802-001
R81,R91 7.5K 7.5K
Tuner
R82,R92 3.9K 3.9K
P.CORD ASS'Y
QAM1142-001 QAM1142-001 QAM1145-001
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
GEB10253A
IC301
POWER AMP. TB2926CHQ
B313
0V
NC
0 0V
GND
7.1V
OUTFR-
5.0V
STBY
7.1V
OUTFR+
C320 14.4V
VCC1/2
0.022
7.1V
OUTRR-
0V
GND
7.1V
OUTRR+
QTE1C57-476Z
C317 8.3V
RIPPLE
47/16 6.8V
INRR
6.8V
INFR
0V
PRE-GND
6.8V
INFL
6.8V
INRL
4.5V
C321 2.2 AC-GND
7.1V
NCB21AK-225X-A
OUTRL+
0V
GND
7.1V
OUTRL-
C319 14.4V
VCC3/4
0.022
7.0V
OUTFL+
C315 5.1V
MUTE
1
7.1V
OUTFL-
0V
GND
DET OFFSET
To SPK BATTERY
*
KD-R404UI
0 OHM 0 OHM
47K 47K
NOT USED NOT USED
USED USED
USED USED
QNN0802-001
6.8K 6.8K
8.2K 8.2K
QAM1145-001
2-5