LG ACC55R, Service Manual

Page: 74 / 83

5-19
ChassisG
n
d
ChassisG
n
d
ChassisG
n
d
CHB-
CHA+
CHB+
VREG1
+3
4V
+3
4V
+
3.3V
HeatSink
C28 100NF X7
R
C1 100NF X7
R
C14
1
00NF
X7
R
C11 100NF X7
R
C10
1
uF
50VDC
R9 220 0000-06
03
C13 100NF X7
R
C16
1
uF
50VDC
R4 10 0000-12
1
0
5% C15 680PF X7
R
C42 100NF X7
R
EIA0805
C8 470NF FILM
R8 6.2
EIA1210
5%
L3
15UH
RADIAL13.5DIA
1
2
C43 100NF X7
R
EIA0805
C23 470NF FILM
C2 1000PF NPO
C21 100NF X7
R
R1 10 0000-12
1
0
5%
C40 NC NPO
C27 1000PF NPO
U1
DDX-2102
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
19
GNDR1 VREG1 VREG1 VL CONFIG PWRDN TRI-STATE FAULT TWARN INLA INLB INRA INRB VREG2 VREG2 VSIG VSIG
GNDREF
OUTNR OUTNR
VCC2N
PGND2N PGND2P
VCC2P
OUTPR OUTPR
OUTNL OUTNL VCC1N
PGND1N PGND1P
VCC1P OUTPL OUTPL
NC
GNDREF
L2
15UH
RADIAL13.5DIA
1
2
C45
1
00NF
X7
R
EIA0805
L1
15UH
RADIAL13.5DIA
1
2
C41 NC NPO
R3 6.2
EIA1210
5%
R5 10 0000-12
1
0
5% C18 680PF X7
R
+
C5
1000UF
50VDC
R6 6.2
EIA1210
5%
C17 100NF X7
R
C44 100NF X7
R
EIA0805
J1
OUTPUT
1 2 3 4 5 6 7 8 9
10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
L4
15UH
RADIAL13.5DIA
1
2
C6 100NF X7
R
C12 1000PF NPO
C9 680PF X7
R
C20
1
00NF
X7
R
C19 1000PF NPO
R7 10 0000-12
1
0
5% C25 680PF X7
R
C26 100NF X7
R
R2 6.2
EIA1210
5%
DDX1A DDX1B DDX2A DDX2B
TRIS
T
A
T
E
FAULT TWARN EAPD
5-2-5. RX AMP SCHEMATIC DIAGRAM_1