Circuit Diagrams; Main Pwb Circuit Diagram - JVC AV-56P776 Service Manual

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM (1/7) SHEET 1
SHEET3,4,5,6,7
9V
SHEET7
TU_5V
SHEET5
C/N_AFT1
SHEET2,3,4,5,6,7 SCL0
SDA0
SDA2
SHEET5 SCL2
TU_BOOST
AUDIO_L
AUDIO_R
ATSC_R
SHEET2
ATSC_L
TV_V1
R_FIX
L_FIX
SHEET5
BBE_SW
SHEET7
STB_POW
SHEET3,5,7
STB_3.3V
SHEET7
MAIN_ON
SHEET1,5,7
RELAY
SHEET5,7
BS_5V
SHEET3,7
12V
SHEET5
A_MU
2-9(No.YA318)
TU1101
!
QAU0448-001
D1101 OPEN
D1102 OPEN
GND
R1103
OPEN
C1101
47/16
C1102
IC1101
47/16
L7805CP
GND
9V
R1109
R1108
OPEN 22K
TU_5V
Y1101
Q1104
OPEN
2SA965/QY/-T
R1106
10K
C/N_AFT1
SCL0
Q1103
UN221C-X
SDA0
SDA2
SCL2 GND
TU_BOOST
AUDIO_L
Y005 Y010
OPEN OPEN
AUDIO_R
Y004 Y009
OPEN OPEN
ATSC_R
Y003 Y008
ATSC_L
OPEN OPEN
Y002 Y007
TV_V1
OPEN OPEN
R_FIX
Y001 Y006
OPEN OPEN
L_FIX
GND GND GND
C1641
R1641
OPEN
OPEN
IC1641
OPEN
C1651
R1651
OPEN
OPEN
BBE_SW
STB_POW
STB_3.3V
R1697
R1695
0
R1698 OPEN
33K
MAIN_ON
R1694
OPEN
RELAY Q1674
*2
R1696
47K
GND
BS_5V
12V
A_MU
GND
R1101
0
R1107
R1102
47K
C1103
75
10/50
GND
Y1102
NRSA63J-0R0X
R1110
OPEN
Q1102
OPEN
Q1101
OPEN
R1111
R1112
OPEN
OPEN
GND
R1113
1K
GND
R1618
0
C1646
C1645
OPEN
C1642 C1643 GND GND
OPEN C1647
OPEN
R1643 OPEN
R1642
OPEN OPEN
GND
R1645
C1652 C1653
OPEN
OPEN
OPEN
R1652
R1653
OPEN
OPEN
C1648 R1649
OPEN
OPEN
R1644
0
GND
R1614
100K
C1695 C1696
OPEN 10/50
R1613
1K
GND
R1612
56K
R1611
56K
GND
GND
TV_A
32V
TV_V1
C1140
0.1/16
C1141
0.1/16
GND
SDA0 R_FIX
SCL0
L_FIX
9V
C1644
R1140
C1145
.022
C/N_AFT1
C1146
.0047
C1147
4.7/50
C1148
.1/25
C1149
.0047
OPEN
GND
D1667
MA111-X
R1615
C1697
56K
Q1673 47/25
*1
GND
R1616
D1668
15K
MA111-X
Q1672
*2
D1677
OPEN
R1620
OPEN
D1669
MA111-X
220/16
1M
MTS
AUD
/AUD
C1150
C1151
4.7/50
.1/25
C1667
C166
R1665 R1667
10
2.2K 2.2K 1/16
R1
C1668
R1666 1
100p
6.8K
R1669
C1671
6.8K
C1670 100p
10
R1668 C16
R1670
2.2K 2.2K 1/16
R1682
10K
R1681
47K
Q1668
UN2213-X
GND GN