LG 42LV4400 Service Manual page 111

5
D
C
08/23 Add EC Cap.
B
+12V
A
5
4
POWER +1.25V (ANALOG)
U8 AP1117EL-13 U8 AP1117EL-13
DV33
FB14 FB14
3
IN IN
60ohm/3A 60ohm/3A
0603L 0603L
DEL L27 + + CE14 CE14
100uF/16V 100uF/16V C141 C141
0.1uF/16V 0.1uF/16V
08/23 Add EC Cap.
DDRII POWER
DV33
U52 G1084_ADJ U52 G1084_ADJ
L18 L18
ADJ/FIX ADJ/FIX
0 0805R 0 0805R
3
IN IN
TO263 TO263
+ + CE17 CE17
100uF/16V 100uF/16V C70 C70
0.1uF/16V 0.1uF/16V
TUNER POWER +5V_TUNER
03/29 Add EC Cap. U10 MC7805CDTG U10 MC7805CDTG
IGO IGO
1
IN IN OUT OUT
TO220 TO220
C31 C31
+ + CE18 CE18 GND GND
100uF/15V 100uF/15V 0.1uF/16V 0.1uF/16V
4
3
L80 L80
4
ADJ/FIX ADJ/FIX
80ohm/6A 80ohm/6A
2
OUT OUT
R39 R39 + + CE12 CE12
100_F 100_F 100uF/16V 100uF/16V
SOT223 SOT223
ADJ ADJ
05/11 Add EC Cap.
R41 R41
0 0
1.25 x (1+0/100) = 1.25V
L81 L81
4
80ohm/6A 80ohm/6A
2
OUT OUT
R31 R31
110_F 110_F + CE13 + CE13
220uF/16V 220uF/16V
ADJ ADJ
08/23 Modify EC Cap.
R33 R33
48R7_F 48R7_F
1.25 x (1+48.7/110) = 1803V
MAX 220mA
+5V_TUNER
3
C34 C34 C35 C35 + CE25 + CE25
100uF/16V 100uF/16V
1.0uF/25V 1.0uF/25V 0.1uF/16V 0.1uF/16V NC NC
Add ZD24
3
2
?mA
AV125
+ + CE21 CE21 C173 C173
NC/47uF/16V NC/47uF/16V 0.1uF/16V 0.1uF/16V
RMS 380mA
DDRV
C72 C72
0.1uF/16V 0.1uF/16V
1,2,4,5,6,7,8,9,10,11,12,13,14,15,16
?mA
ZD24 ZD24
APPROVED BY: APPROVED BY: APPROVED BY:
CHECKED BY: CHECKED BY: CHECKED BY:
DESIGN BY: DESIGN BY: DESIGN BY:
2
1
GND
GND
TECHNOLOGY TECHNOLOGY TECHNOLOGY
42LV4400(364213320150) 42LV4400(364213320150) 42LV4400(364213320150)
MODEL MODEL MODEL
47LV4400(364705220150) 47LV4400(364705220150) 47LV4400(364705220150)
CIRCUITY CIRCUITY CIRCUITY ANALOG POWER ANALOG POWER ANALOG POWER
PCB P/ N: PCB P/ N: PCB P/ N: 017122714132 017122714132 017122714132 Sheet Sheet Sheet 3 3 3 of of of 17 17 17
ECN NO: ECN NO: ECN NO: 2.0 2.0 2.0
REV: REV: REV:
PCN0000627 / PCN0000637 PCN0000627 / PCN0000637 PCN0000627 / PCN0000637
SCH FILE : SCH FILE : SCH FILE :
364213320150_PCN0000627.DSN 364213320150_PCN0000627.DSN 364213320150_PCN0000627.DSN PCB REV: PCB REV: PCB REV: 2.0 2.0 2.0
PCB FILE : PCB FILE : PCB FILE : 017122714132.BRD 017122714132.BRD 017122714132.BRD DATE: DATE: DATE:
Monday, August 29, 2011 Monday, August 29, 2011 Monday, August 29, 2011
1
D
C
B
A