JVC AV28CT1EKS Service Manual page 26

AV SEL. PWB CIRCUIT DIAGRAM
AV SEL. PWB
SJK0S712A-H3(AV28CT1EPS/EPB/EIS)
SJK0S912A-H3(AV28CT1EKS/EKB)
CN00F
R4
R4
GND
L4
L4
TO
GND
CONTROL V4
V4
PB ASSY GND
Y4
Y4
GND
C4
C4
EXT-1
V1
COMMON GND R101
C102
V IN 1 75 470/16
TV_OUT
V OUT TV
SC_YS
GND(V IN)
SC_R
GND(V OUT)
Y IN S R102 C103 R113
D101 75
RIN 10/50 D104 75
*4
GND(Y ) S *4
SC_G
GND(R)
NC D102 R103 C104
G IN *4 75 10/50
L1
SLOW1
NC
C105 10/50
GND(G) SC_B
SLOW SW1 R104
D103
V1
B IN *4 75
L1
L IN 1 R154
R1
C106
GND(B)
0.0047
CE42681-001Y
AUDIO GND
K103 C107
L OUT TV
0.0015 R1
R IN 1
R OUT TV
C109 C108
K104
0.0015 0.0047
CE42681-001Y
J002
QNZ0463-001
D107
EXT-2
*4
C152
R159
COMMON GND 1/50 R125 100
V2/Y2
2 V /Y IN 2
V2_OUT R126 D108
SEL V OUT 33k *4
GND(V IN) R105 C110 C153
R160
75
GND(V OUT) 470/16 1/50 R127
NC(Y IN) S D109
C2 Q104
C IN 2 *1 *4
6.6V
R106 Q119
NC(Y OUT) S R128
SW *1 AV_LINK R129 82k
75 SLOW1
GND(R) 10k
2.3V 3.4V SDA2 6.6V
SDA2 R115 R114 R130 47k R162
NC(G IN) 47k 100
22k
5V 3.8V SCL2
AV LINK
/SCL2 R211 10k Q105
Q120
L3 *1
NC(G GND) *1 SW 0.1V SLOW2
C119
SLOW SW2 R212 R133 2.2k
K101 1/50
10k V3/Y3 R134
NC(B IN) CE42681-001Y L2
33k C120
L IN 2 C111
C113 10/50 R165
0.0047 R3 R135
GND(B) 150P CH
2.2k C121
AUDIO GND L2OUT 100
C3 1/50
SEL L OUT R2
R166
R IN 2 R2OUT
R136 C122 100
SEL R OUT C101 0.01
C112 33k
150P
K102 0.0047
J001 CH
CE42681-001Y
QNZ0465-001
EXT-3
COMMON GND
V3/Y3
3 V /Y IN 3
R107
NC
75
GND(V IN)
NC R137
NC(Y IN) S 33k
C3
C IN 3
R138
R139
NC(Y OUT) S 47k
R108 SLOW3 82k 6.6
GND(R) 75 V
SDA3 R116
R141 *1
22k
NC(G IN) 15k
SCL3
Q106
R143
NC(G GND)
SLOW3
SLOW SW3 47k 0V
NC(B IN) L114
Q107
QQR0716-001Z L3
L3IN *1
C123 R144
GND(B) C114 0.001 27k
AUDIO GND 0.0047
NC
R3
R3IN
BUSA
NC C115
0.0047
J001 C124
10/50
R146
390
R117
82k C125
10/50
R148
390
R118
82k
Q109
DTC323TK-X
MUTING
Q110
DTC323TK-X
MUTING
NOTE
X : OPTION(NON MOUNT)
BW : IM-BW
0 : NRSA02J-0R0X
*1 : 2SC2412K/QR/-X
:
*2 2SA1037AK/QR/-X
*3 : MA111-X
*4 : MA3120/M/-X
*5 : DTC124EKA-X
*6 : DTA124EKA-X
*7 : 2SC1740S/QR/-T
*8 : 2SA933AS/QR/-T
No.51952
AV28CT1EKS/AV28CT1EKB
AV28CT1EPS/AV28CT1EPB
R119 390
D105
R110
82k C116 *4
10/50
R120 390
D106
R112
C117 *4
82k 0V
10/50
A.MUTE
-1.3V 0.1V
Q102
0V
*2
MUTING
R123
Q103 100k
Q101
DTC323TK-X
DTC323TK-X
MUTING
MUTING
COUT
COUT
R152 YOUT
C126 YOUT
2.2k 1/50
R153 C157
C127
33k 68p CH
10/50
2.2k
C137 C136
N
C128 10/25 10/50
R155 1/50
33k 4.4 3.9 4.0 0 3.9 4.4 4.4
NC
V V V V V
C158 4V V V
68p CH
R124
3.9 C139
5.5V
100 V N 10/25
V1 YIN1
C141
4.4
EXT1
V 0.01
L1 MUTE NC
100 3.9 C147
9V 470/16 C156
V
Y1 Vcc
X
4.4 C140
3.5V 100/16 Q118
V
R1 VOUT2
*7
100 4.4 EXT4
R188
100 V VIDEOBUFFER
4.4V 100
C1 ROUT2
R2_OUT
6.6 3.9
IC101
V V R202 R203
S1-1 CXA2089Q-X YOUT2 NC
150 75
R161
AV SW
100 R1/2 L2_OUT
4.5V
S-1 LOUT2
C154
V2 COUT2 NC D112
68p
*4
R163
L2 DC OUT2 NC
100 3.9
R189
R164 V 3.8V SDA2
Y2 SDA
100 4.4 220
EXT3
V 3.8V SCL2
R2 SCL
4.4 R190
EXT2 TV
V 0V 220
C2 ADR
0V 3.9 4.4 0V 4.4 4.4V R191
6.6 4.4 3.9 4.4 6.6 4.5V
5.6k 1/50
R167 V V V V V V V V N C142
100
R192 5.6k
C144 1/50
C155 R193 R194 C161
68p
C130 1k 1k 68p CH
CH
1/50 R195
100 OMF1
R170
33k R186 C146 C145
R172 R173
47k 82k 33k 100/16 R197 100/16
0V 6.6V
180
R1/2
Q111
R199
*1 R184 100 12V
3V R198
Q112 33k
75
*1 2.3V
R142 R176 47k 6.6V
22k Q116
D113
0V
*8 *4
VIDEO BUFFER
R177
27k
C131
0.001
TV_V
L2_OUT
D110
*4
R2_OUT
D111
*4
A.MUTE
Q108
*2
Y105
MUTING X
R151
100k
C159
560p CH
Y622
0
CN006
TO MAIN PB ASSY
AV28CT1EKS/AV28CT1EKB
AV28CT1EPS/AV28CT1EPB
AV28CT1EIS
AV28CT1EIS
C616
100/16 NCB21EK-104X
R606 180
OMF1
D601
RD8.2E/B2/-T2
C618
C619
0.1
NCB21EK-104X
C620
10/50
R647 C621
100 1/50
C622
R648 1/50
100 C623
0.1
R649 R650 NCB21EK-104X
X X
C624
10/50
R607 Q601
QQL244K-180Z 12k *1
BPF NCB21EK-104X
R603 C610 C611 L602 R608
Q602
1k 820p 47p 18 180
R651
1.2k MUTING
CH
CH
CH CH
L601
22
C612 C614 R609 R610
QQL244K-220Z
47p 18p 12k 1.2k
SJK- SJK-
0S712A-H3 0S912A-H3
DTC323
Q602 TK-X X
Q603 *2 X
C160
R624 100k X
0.001
CH
Y104
X
Y106
BW
QGB1505K1-50
2-11 2-12
C629 C630 C677
10/50 0.001 0.001
C631
0.001
0.1V
C617
0.1
C678
33
3.7 0.2V 0.001
8V .7V
V
6.8V 6.8V
R628
RESETQ
C645 0
10/50 0V CAPL_M 0.01
NC
AHVSS
3.7V
0V
AGNDC DVSS
CE42482-103Y
CE42482-103Y
LC601
6.8V L605 4.7 LC602
SC2_IN_L DVSUP
QQL244K-4R7Z
IC603 C647
SC2_IN_R TP
100/16
C646
MSP3415DQGB3GHX
0.1
ASG1 NC
MULTI SOUND PROCESSOR NCB21EK-104X
SC1_IN_L TP
3.7V
SC1_IN_R TP
2.5V
VREFTOP TP
3.7
3.2 R629
V V 100
MCNO_IN I2C DA
4.2
0V
V
AVSS I2C CL
R630
100
L603
C633
BW Y621 0
10/50 2.2V 4.9V 4.9V
1.4V 1.4V 1.4V 0V 2V 4.9V
C642 X601 C648
C632 C636
2p CH CE42546-001Z 0.1
2p
0.1
CH
*
Q603
C634 C635 *
0.01 0.01
NCB21EK-104X
K601 R624
QQR0621-002Z *
MUTING
C660
N
1/50
L604 QQL244K-100Z R614
10
C625 10k
220/16
R615
100
NC659
12V R617 1/50
C626 R618
1k
0.015
R616 6V 3.3k
6V
220
R635 3.3k R619
C628 0.022 IC602 33k
5.8V
BA4558F-X
C637
(1/2) R620
0.0022
33k
R623
1k C638
R631 100
33/16
R622
C639 R632
10k
0V 3.3k
0.015
6V
5.8V
C640 R633 IC602
220 BA4558F-X R634 3.3k
0.022
(2/2)
LPF
C641
0.0022
L_OUT
C643
1/50
R_OUT
C627
1/50
No.51952