LG 50PW450 Service Manual page 21

P601
SMAW200-H18S1
1 2
3 4
5 6
+3.3V_ST
7 8
9 10
11 12
R601 R602
10K 10K
13 14
R606 100
15 16
RL_ON
R603 100
17 18
5V_ON
C603 C604
0.1uF 0.1uF
+3.3V 16V 19
16V
R600
10K
READY
100
R604
ERROR_DET
R605 100
AC_DET
C602
0.1uF
16V
3.3V_AVDD / 2.5AVDD
+3.3V_AVDD
+5V_ST_EN
IC600
AZ1085S-3.3TR/E1
INPUT OUTPUT
3 2
R611
L602
C600 1
1K
120-ohm
0.1uF C615
ADJ/GND C607 C608 Power Main READY
16V 47uF A1[GN] 0.1uF
0.1uF
6.3V 16V
16V
LD600
SAM2333
READY
3.3Vst
+5V_ST +3.3V_ST
+5V
IC606
IC601
AZ1085S-3.3TR/E1
AP2121N-3.3TRE1
INPUT
VIN VOUT
3 2 3
C658 1
C601 1 C605 C606
0.1uF
0.1uF 100uF 0.1uF
GND
16V
16V 16V 16V
+5V
3D
L710
BLM18PG121SN1D
3D
READY R1440
R762
0
10K
READY
C734
R704 READY
0.1uF
10K
READY 16V
R641
R773 0
0
3D
C739
0.1uF
50V
VIN_1
PH_3
1 12
THERMAL
VIN_2 PH_2
2 17 11
3D
3D
C725
C728 GND_1 PH_1
3 IC704 10
10uF
0.1uF
16V SN1007054RTER
GND_2 SS
4 3A 9
3D
C740
0.01uF
3D
3D
10K
3D
R774
R775
3D
330K
C738
2200pF
Vout=0.8*(1+R1/R2)
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 © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Power Wafer
P_17V
L603
+5V_ST
500
Power Main
C619 C627
0.1uF
100uF
16V
16V
RL_ON
+5V
L604
500
Power Main
C628
C624 C631
C621
0.1uF
100uF 22uF
100uF
16V 16V
16V 16V
L605
500
Power Main
5V Tuner
+2.5V_AVDD
P_17V
IC604
TJ3964S-2.5
VIN VOUT
1 3
2
C616
C662 C623
47uF
10uF 0.1uF
GND
6.3V
10V 16V
C634 C635 C636
4.7uF 4.7uF 0.01uF
50V 50V 50V
3.3V
+3.3V_AVDD +3.3V_TU
+3.3V
L300
120-ohm
2A
OUTPUT
C309
2
22uF
C660 C661 10V
C797
10uF 0.1uF 0.1uF
ADJ/GND C659 C663
16V
16V 16V
47uF 10uF
6.3V 16V
R1475
READY
1
LG8300 1.0V
+1.0V
3D
L709
BLM18PG121SN1D
3D
L702
3.6uH
R1
3D
R778
3D 3D
5.1K 3D 3D 3D
C743 C745 C746 C747
1% C748
100pF 22uF
10uF 10uF 0.1uF
50V 10V 16V
10V 10V
3D
R779
R2
22K
1%
Switching freq: 600K
1.8V Control for Power_On Seq of LG8300
3.2A / P-CHANNEL
+5V_ST
S D
C655
C654
0.01uF C656
+3.3V_ST 22uF
25V
100uF
16V
R612
16V
10K G
R607
10K
Q600
C
R609
10K B Q601
RTR030P02
RT1C3904-T112
E
EAP61606601
L608
22.0uH
IC605
C639
TPS54231D
0.1uF
C641 C642
50V
10uF 10uF
16V 16V
BOOT PH
2A
1 8
VIN GND
2 7
EN COMP
3 6
C640 C643
SS VSENSE 470pF
15pF
4 5
50V
50V
R625
C638
51K
0.015uF
50V
1.26V Tuner
+1.26V_TU
IC301
AZ1117BH-ADJTRE1
R2
INPUT ADJ/GND
3 1
C313 R350
2
0.1uF
10
16V
OUTPUT R1
R347
1.2K
C322 C325
0.1uF 47uF
16V 6.3V
LG8300 3.3V / 1.8V
+3.3V_3D
+3.3V
3D
IC707
3D
AZ1117BH-1.8TRE1
+1.8V
L703
BLM18PG121SN1D
3D
INADJ/GND R834
0
READY 3D
OUT
C749
C751
47uF
0.1uF
6.3V
16V 3D
3D
C755
C752
0.1uF
47uF
16V
6.3V
5Vst Enable
+5V_ST_EN
READY
R610
10K
READY
+5V_ST_EN
C614
0.1uF
16V
R638
10K
C657 READY
0.01uF
25V
VIN_1
1
VIN_2
2
C610 GND_1
C612 3
10uF
0.1uF SN1007054RTER
16V
16V GND_2
4
C618
2200pF
+5V_TU
C644 R1
+5V_ST_EN
10uF
16V
READY
READY
R608
10K
READY
C613
0.1uF
16V
R627
20K R2
1%
R613
10K
READY
VIN_1
1
THERMAL
VIN_2
2 17
C609 GND_1
C611 3 IC602
10uF
0.1uF SN1007054RTER
16V
GND_2
16V
4
R614
10K
C617
2200pF
1.26V Core
READY +1.26V_VDDC
R617
0
R642
0
C622
0.1uF
50V
L607
3.6uH
PH_3
12
THERMAL
R1
PH_2
11
17
R621
C630
PH_1 39K
IC603 10
100pF C633 C651 C652
1% C653
50V 22uF 10uF 10uF
0.1uF
SS
9
16V 10V 10V 16V
3A
C626 0.01uF
R615
R619
10K
R637 75K
R2
330K
1/16W
1%
Switching freq: 600K
Vout=0.827*(1+R1/R2)
1.5V DDR
READY
R616
0
R640
0
C620 +1.5V_DDR_IN
0.1uF
50V
L606
3.6uH
PH_3
12
R1
PH_2
11
R620
C629
PH_1 10.7K
10
100pF C632 C637 C647
1% C650
50V 22uF 10uF 10uF
SS 0.1uF
9
16V 10V 10V 16V
3A
C625 0.01uF
R618
R636 12K
R2
330K
1/16W
1%
Switching freq: 600K
Vout=0.827*(1+R1/R2)
SEPARATE GND
R1
0
R2000
R2
0
R2001 CGND1
R3
0
R2002
R4
0
CGND2
R2003
R5
0
R2004
R6
0
CGND3
R2005
R7
0
R2006
R8
0
CGND4
R2007
SIDE_HDMI/USB GASKET GND
M1
M2 M3
MDS62110205
MDS62110205
MDS62110205
READY
GP2R_S7R
2010-08-31
Power 6
LGE Internal Use Only