LG 55LH80YD-AB Service Manual page 34

FROM LIPS & POWER B/D
BG2012B121F
C611
15pF
50V
P601
FW20020-24S
NC PWR ON
1 2
GND GND
3 4
CB4532UK121E
GND GND
5 6
5.2V 5.2V
+12V 7 8
5.2V 5.2V
9 10
GND GND
L606 11 12
MLB-201209-0120P-N2
12V 12V
13 14
GND GND
C632 15 16
C628 C621
22uF C618
0.1uF 47uF 24V 24V
0.1uF 17 18
16V
25V
50V 50V NC INV ON
19 20
OPT
OPT
A.DIM ErrOut
21 22
NC PWM_DIM
23 24
L600
BG2012B080TF
A_DIM
9:AD15 R605
4.7K C606
C608
1uF
16V
25V 0.1uF
C684
OPT 0.1uF
50V
OPT
R614
0
Except_OPC
PWM_DIM
9:AD15;7:AL17 C625
L604 R610
1uF
25V BG2012B080TF
OPT
OPC_OUT1
OPT
R659
7:AL17
0
OPC_EN
+1.26 Core for Saturn5
+5V_GENERAL
+3.3V
L609
CB3216PA501E
OPT
R624
10K
Close to IC
1/10W
Vout=0.8*(1+R1/R2) R625
22K 1%
IC605
Close to IC
1/10W
MP2212DN
+5V_GENERAL C619 R612
R1
560pF 22K
50V 1%
OPT
FB EN/SYNC
1 8
R613
L625 75K R2
1% GND SW_2
CB3216PA501E
2 7
IN SW_1
3 6
C IN
D600 BS VCC
4 5
C650
C646
100V
22uF 22uF
1N4148W_DIODES
EAN57653801
OPT OPT
R664
0
Placed on SMD-TOP R623
10
C652
1/10W
1% 1uF
16V
+1.8V for Saturn5 DDR
+1.8V_DDR
+3.3V
+1.8V_EN
IC600
SC4215ISTRT
NC_1 GND R611
1 8
12K
R1
1%
R601
3.3K EN ADJ
2 7
VIN VO
3 6
NC_2 NC_3 R604 C642 C641
4 5
R2 22uF
9.1K 0.1uF
16V
16V
C660 C623 1%
0IPMGS1010A
10uF 0.1uF C617
16V 0.47uF
10V
OPT
R1/R2 : 27K / 20K => Vout=1.88
R1/R2 : 15K / 12K => Vout=1.80
R1/R2 : 12K / 9.1K => Vout=1.85
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 ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+5V_+12V
+5V_ST
+3.3V_ST
+3.3V_ST
RT1P141C-T112
L601
Q600
R607
3
1 10K
R600 R606 OPT R678
10K
10K
33K 2
OPT
C R609
10K
Q601 B
RL_ON
2SC3052
OPT
OPT 1:Z10;Q25;12:AF18
C620
E
1uF
OPT
+5V_ST
1:Z10;O26;12:AF18
220uF ==> 100uF*2+ 22uF for depth
L605
9:AO34;12:T8;12:AF19
C624 C629 C633 C636
100uF 100uF 22uF 22uF
16V 16V 16V 16V
OPT
+24V
L603
CB4532UK121E
C622
C626 C627 C631
0.1uF 68uF 1uF 68uF
50V 35V 35V 35V
+5V_GENERAL
+3.3V_ST
R617
1K
R619
+3.3V
100 C 10K
R618
R615 R665
Q602 B 10K 0
2SC3052 C
E Q611 B
INV_CTL
2SC3875S(ALY)
R666 9:AO35
OPT R620
10K
10K
E OPT
OPT
ERROR_OUT
R608
C610 9:AC23
4.7K
0.1uF
0
16V
OPT
R631
1/10W
+1.26V_VDDC
10K
R674
+1.26V_EN
100
C658
0.1uF OPT
16V
OPT
+1.26 Core for URSA
L611 L612
3.6uH BLM18PG121SN1D
NR8040T3R6N
C OUT
C667
C666
C665
0.1uF
22uF 22uF
16V 16V
C655
0.1uF
Placed on SMD-TOP
50V
AN SO YOUNG
+12V
L608
CB3216PA501E
+5V_ST
+5V_ST
+3.3V_ST C647
R628
10uF
10K
OPT
+5V_ST
R629
R663
560
10K
OPT
Q603 C
2SC3052
R662
RL_ON OPT 0 B
R671
R636
0 C E
47K
Q609
POWER_ON/OFF
B
2SC3052
OPT
R670 R622
10K
0
E R630 R637
C634 C637
4.7uF 4.7uF 22K 47K
6.3V
6.3V
OPT OPT
C
R627
10K B Q605
2SC3052
OPT
C
R626 E
10K R632
B Q604
PANEL_CTL 22K
2SC3052
9:AO34
E
+5V
R635 R648
10K 100
OPT OPT
Vout=0.8*(1+R1/R2)
IC601
Close to IC MP2212DN
R633
C630 R675
R1
560pF 56K 82K
+5V 50V 1%
OPT
FB EN/SYNC
1 8
R672
R634
R2 100K
18K GND SW_2
1% 2 7
IN SW_1
3 6
D601
BS VCC
C602
C601 4 5
22uF 22uF
100V
OPT
16V
1N4148W_DIODES
EAN57653801
OPT
R642
R639 0
10 C604
Placed on SMD-TOP
1/10W
1uF
1%
10V
+5V_GENERAL
OPT
Vout=0.8*(1+R1/R2)
R641
100
R2
IC608
POWER_EN APE8953MP
1% 1%
1/10W 1/10W
+1.8V_MEMC 30K 27K
R647 R653
EN GND
8 1
1.5mA
C674 POK FB
C691
7 2
1uF 0.1uF
16V
16V
OPT
VCNTL VOUT_1
6 3
VIN VOUT_2
5 4
C673
C689
10uF
10uF
6.3V 6.3V
R646
1K
Placed on SMD-TOP
R1/R2 = 12K/20K => Vout=1.28
+5V
L614
C653
CB3216PA501E
0.1uF C663
C661
10uF 0.1uF
Q606
16V
SI4925BDY
+5V_GENERAL
L616
CB3216PA501E
S1 1 8 D1_2
G1 2 7 D1_1 C662 C664
0.1uF
10uF
10V 16V
S2 3 6 D2_2
C657
22uF
16V
G2 4 5 D2_1
12V_TCON
C648
EBK32753101
4.7uF
25V
L618
BG2012B121F
C659
C651
22uF
1uF
25V 25V
+5V_EXT
+12V
L619
CB3216PA501E
+3.3V
+3.3V_EN
L613
12:AF18
BLM18PG121SN1D
+3.3V_MEMC
L617
C635
1uF BLM18PG121SN1D
10V
L610
3.6uH
Placed on SMD-TOP
NR8040T3R6N
C615
C614 Placed on SMD-TOP
C612 C613 0.1uF
22uF
10uF 0.1uF
16V
6.3V 16V OPT
16V
C605 C638 C639
22uF
0.1uF 22uF
16V
50V 16V
+1.8V_MEMC for URSA DDR
+5V_EXT
+1.26V_MEMC
R1
L626
R655 CB3216PA501E
33K
1/10W
1%
Vout=0.8*(1+R1/R2)
25V
0.01uF
C682
R640
+5V_EXT C643
390K
560pF
50V
OPT
R638
300K
L628
CB3216PA501E
C690 C686
10uF 10uF
6.3V 6.3V
C IN
Placed on SMD-TOP
C668
C669
22uF 22uF
1N4148W_DIODES
OPT
Placed on SMD-TOP
Stand-by +3.3V
+5V_ST +3.3V_ST
IC602
AP1117E33G-13
IN ADJ/GND
3 1
C600 2 C607 C609
C603
10uF 10uF 0.1uF
0.1uF
OUT
6.3V
10V 16V 16V
EAN54428601
S5 ST_BY CONTROL BY MICOM
+3.3V_ST L620 +3.3V_AVDD_MPLL
BLM18PG121SN1D
Q608
OPT RSR025P03 L602
BLM18PG121SN1D
S
D
R656
R660 C616
C687
10K 10K
10uF C688
G 0.1uF
OPT
OPT
16V
R661
0.1uF
560
C
R657
10K
B Q607
S5_STBY_CTL
2SC3052
12:U8
C670
E
1uF
R669
100
POWER_EN
OPT
9:AO34;S11;AL10
R677
R654
2K
10K Close to IC
C640
560pF OPT
R1 R667
68K
IC603
Close to IC
MP2212DN
D604 +5V_EXT
MBRS340T3G
Close to IC 500MV
FB EN/SYNC OPT
R2 1 8
R676
R649 L622
10K
13K 3.6uH
GND SW_2 OPT
1%
2 7
NR8040T3R6N
IN SW_1
C649
3 6 C654
22uF
0.1uF
+5V_GENERAL
+5V_GENERAL 16V
16V
D603
BS VCC C645 3225
4 5
0.1uF
100V PI Result
50V
1N4148W_DIODES EAN57653801
OPT R668
R651 0
C644
10
1uF
1%
10V
R652
POWER_EN
100
OPT
R644
10K
Close to IC
1/10W
R645
0
IC606
Close to IC
MP2212DN
R1
1%
+1.8V_MEMC
FB EN/SYNC
1 8
L615
R2
3.6uH About 1.84V
1% GND SW_2
2 7
NR8040T3R6N
C OUT
IN SW_1
3 6
C681 C685
22uF 22uF
D602
BS VCC 16V 16V
C680
4 5
0.1uF
100V
EAN57653801 50V
OPT
R650
Placed on SMD-TOP
0
R643
10 C679
1%
1uF
16V
JUNO
09.02.04
Power 4 12
LGE Internal Use Only
C656
0.1uF
16V