LG 60LN549E Service Manual page 66

+12V/+15V
L9802
BLM18PG121SN1D
C9802
10uF
16V
S w i t c h i n g f r e q : 7 0 0 K
+12V/+15V
L9801
BLM18PG121SN1D
C9801
10uF
16V
S w i t c h i n g f r e q : 7 0 0 K
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
CORE +1.26V_FRC
TYPICAL 980mA
+3.3V_FRC
IC9802
10K
R9813 TPS54327DDAR [EP]GND
POWER_ON/OFF_1
OPT
R9806
C9821
R9814
10K EN
VIN
330K 1uF
1 8
R1 OPT
10V
R9801 R9803
C9810
6.8K 1K VFB VBST
2 7
1% 1% 0 . 1 u F L9804
16V
3.6uH
VREG5 SW
3 6
C9804
NR8040T3R6N
100pF
SS GND
3A
4 5
50V
R2
C9806 C9808
1uF 3300pF
10V 50V
Vout=0.765*(1+R1/R2)
+3.3V_FRC
TYPICAL 300mA
+12V/+15V
IC9801
POWER_ON/OFF_1
OPT
TPS54327DDAR [EP]GND
R9805
10K C9822
1uF
EN VIN
25V
1 8
R1
R9802 R9804
C9809
33K 220 VFB VBST
2 7
1%
1% 0 . 1 u F L9803
16V
3.6uH
VREG5 SW
3 6
C9803
27pF
NR8040T3R6N
50V
SS GND
3A
4 5
R9807
R2 10K C9805 C9807
1uF 3300pF
1%
10V 50V
Vout=0.765*(1+R1/R2)
+1.5V_FRC
+3.3V_FRC
+1.26V_FRC
R9809
10K
C9815 C9816
10uF 0 . 1 u F
10V 16V C9817
1uF
OPT 10V
C9812 C9814
22uF 22uF
10V
10V
+ 1 . 5 V o f D D R & U R S A 5 u s e s s a m e p o w e r l i n e
+3.3V_FRC
OPT
C9811
C9813
22uF
22uF
10V
10V
TYPICAL 350mA
+1.5V_FRC_DDR
IC9803
AP7173-SPG-13 HF(DIODES)
[ E P ]
R1
1 8
OUT
IN R9810
4.3K
1%
2 7
PG FB
3 6 R9811
3.9K
1%
VCC SS
R2
4 5
C9818 R9812 C9819 C9820
GND 560pF 1K 10uF 10uF
EN
50V 1% 16V 16V
EAN41406705
Vout=0.6*(1+R1/R2)
LB3AC 2 0 1 3 . 0 1 . 2 3
URSA5 Power Block 15 15
LGE Internal Use Only