LG 50PB4D Service Manual page 59

9. POWER
P901
SMW250-10
6602T25008J
19V L911
1 P_+19V
HU-1H4532-121
19V
2 C924
100uF
25V
GND
3
GND
4
L912
HU-1H4532-121
6V
5 P_6.0V
C928
GND 220uF
6 16V
L918
3.4V HU-1H4532-121
7 P_3.3V
C929
GND 220uF
8 16V
L919
12V HU-1H4532-121
9 P_12V
C925
GND 220uF
10 16V
PDP ONLY FOR FAN
FAN
L910
MLB-321611
FAN_VCC
500-ohm
+5VST
R905
READY
1.8K
C954
470uF
16V
TP921
D901
SAM2333
READY
5.0V
L913
HH-1M3216-501
+5V_MSP4450
C937
100uF
16V
D900
KDS226
9.0V
A
KDS226
IC904
KA7809ERTM
P_12V
1 3
C901 2 C915
100uF 100uF
16V
16V
L909
HH-1M3216-501
+9V_MSP4450
C903
0.1uF 47uF
16V
C917
L925 C980
HH-1M3216-501 D906
0.01uF
ADAC_8V
C981
EU1ZV(1) 47uF
16V
6.TUNER
GND_TU
R671
0
R670
0
R669
0
R668
0
R667
0
R666
0
R665
0
R664
0
TP616 TP617
R663
0
R662
0
GND_TU
GND
R687 R688
0 0
R675
0
R680
0 R678
0
R681 R676
0 0
GND_1 GND GND_2 GND
R686 R677
0 0
R685 R673
0 0
R682 R679
0 0
J600
R684 R674
0 0 KCN-BT-0-0053
GND_3 GND GND_4 GND 1
2
3
4
GND_TU
3V3
1.8V 1.8VA_FE
R624 100
I2C_SCL1 FE_SCL
R625 100 L605
LEMC3225T-6R8M
I2C_SDA1 FE_SDA
R629 100
C623 C624 TUNER_RESET
1
DTV_TU_I2C DTV_TU_I2C
47pF 47pF C639
100uF 2
GND_TU GND_TU
GND_TU
GND
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Only for training and service purposes
All manuals and user guides at all-guides.com
+5VST
R915
10K +5VST
R923
3 10K
R919
Q901 33K
2
3
P900 2SC3875S Q904 R925
R939 0 1 2 33K
2SC3875S RL_ON/PWR_ONOFF_2
SMW250-13
6602T25008M
1
L908 R938 0
AC_DET 1
IN OUT
GND L904
RL_ON 2 TP923
/POWER ON
+5VST
L900 IN OUT
5VST GND
3
R940 0 +5VST
HU-1H4532-121 R917
GND 4 10K
R924
VaVs_ON L903
10K
/INVERTER 5
3 R920
ON IN OUT 33K
L906 GND 2
5V_DET 6 C955 0.47uF
/ERROR OUT Q903 3
IN OUT 2SC3875S R926
1 Q900 2 33K
3.3V ON GND 2SC3875S INV_CTL/VAVS_ON
7
/BRI CTRL R935 0
1
5VST 8
GND 9
NC R927 4.7K
5V_MNT
/PWM 10
DIMMING ERROR_OUT
5000:1
5000:1
6V 11 L901
R910 0
Vbr_A
IN OUT
GND 12
GND
L902
3.3V ON 13 L905 R929 0
IN OUT Vbr_B_2
IN OUT FOR LCD_AI,FULL_HD_LCD_AI
GND
GND
R928 0
0.01uF Vbr_B_1
R936 0 R937 0 5000:1_POWER,CMO
C909
OPTION FOR 5000:1 ONLY LCD
+5VST
R932
R931 10K
100
3
+5VST FOR PDP, HD_PDP
Q906
+5VST 2SC3875S
R911 1
10K
R916
10K
3 R913
33K
2
Q905 3
2SC3875S R918
1 Q902 2 33K
2SC3875S 3.3V_ON
1
SUPPLY 5V TO module cont. B/D
STAND-BY
L907
+3.3V_SWITCH
HH-1M3216-501
D902
KDS226
C912
C 47uF
16V
A AC 3.3V_CTZ
IC900
FAN1587AD33X D905
KDS226
IN OUT
IN OUT
GND
C957 C960 C969 C972
100uF 0.1uF ADJ 100uF 0.1uF
16V 16V 50V KDS226
MVK IC903
SC156515M-1.8TR
D903
KDS226 VIN 2 4 VO
C
A AC
EN ADJ
1 5
IC901 1.8V_CTZ
3
FAN1587AD33X
IN IN OUT OUT TP913 GND
GND
C961 C973 R900
C958 ADJ C970
100uF 0.1uF 100uF 0.1uF
16V 16V MVK 50V 10K
1.8V_CORE_CTZ
HH-1M3216-501
L923
500-ohm
C907
R901 C975 100uF
10K 100uF 16V
16V
1%
R902 1.8V_CORE_CTZ is changed
20K due to ability of regulator
1%
D904
KDS226
C
+2.5V_DDR_CTZ
A AC
IC902
AZ1117H-2.5TR/E1
INPUT 2 OUTPUT
3
1
C959 C962 C908
0.1uF ADJ/GND C971 0.1uF
100uF 100uF
16V 16V 16V
TDFC-G106P
TU600
5V_TU
R661
4.7K
TPS2010 TPS2031
R659 0
R660 C
10K
B
5V_ANN_CTL TPS2031 Q610 TPS2031
E
2SC3875S
TP621 TP619 TP620
GND
C642
47pF
C601
100pF
C641
47pF
5V_TU
L600
LEMC3225T-6R8M
1
C640
100uF
2 16V
3.3V_TUNER
1.8VA_FE
GND_TU
SIF
Q602
2SA1504S
GND
GND
TP656
Q606
2SA1504S
TP658
R649
150
GND
TP657
R640 C GND
0 Q604
B
2SC3875S
FE_RESET
E
C635
1K
4700pF R648
C637
4700pF
GND
GND
FOR LCD STAND_BY 1W
5. power2
R911-*1 R913-*1
R915-*1 R916-*1 R917-*1 R918-*1 R919-*1 R920-*1
1K 10K 1K 1K 10K 10K 10K 33K
R923-*1 R924-*1 R925-*1 R926-*1 R930-*1 R932-*1 R933-*1
R934-*1
10K 33K
1K 10K 10K 1K 1K 10K
3.3 volt
FOR FULL HD LCD STAND_BY 1W
IC504
KIA78R33F
R911-*2 R913-*2 R915-*2 R916-*2 R917-*2 R918-*2 R919-*2 R920-*2
10K 10K 10K
10K 1K 10K 10K 10K
R925-*2
R923-*2 R924-*2 R926-*2 R930-*2 R932-*2 R933-*2 R934-*2 1 2
1K 10K 10K 10K 10K 1K 1K P_6.0V
10K
FOR FULL HD PDP STAND_BY 1W
C528 C530
220uF 0.1uF
R911-*3 R913-*3 R915-*3 R916-*3 R917-*3 R918-*3 R919-*2 R920-*3
16V
10K 20K 6.2K
20K 6.2K 10K 10K 10K
R924-*3 R925-*3 R926-*3 R930-*3
R923-*3 R932-*3 R933-*3 R934-*3
GND
6.2K 6.2K 10K 10K 10K 6.2K 6.2K
10K
6
ONLY FOR PDP 1 2 3
Q906, Q907, R930, R931
+5VST
R932, R933, R934
R933
10K
R934
33K
2
3
R930
Q907 2 33K
2SC3875S 5V_ON C548 C550
100uF 0.1uF
16V 16V
1
GND
OPTION FOR PDP
R554
100
1/10W
TUNER_3.3V_ON 5%
DDR SDRAM 2.5 VOLT
P_3.3V
VIN
C520
C519
100uF 0.1uF
16V
4. OPTION
C616 C612
47uF
0.1uF
16V
IC600
GND_TU
TPS2010ADR
5V_ANN_MNT
R652
GND 1 8 OUT4 2K
TPS2010
IN1 2 7 OUT3
R653
IN2 3 6 OUT2 10K
EN OUT1
4 5
R654
0.1uF 0 GND
C615
TPS2010
IC600-*1
TPS2031
TPS2031DR
GND GND OUT_3
1 8
IN_1 OUT_2
2 7
IN_2 OUT_1
3 6
EN OC
4 5
5V_TU
L601
LEMC3225T-6R8M
TP630
R657
10
TP631
Q609
E 2SA1504S
R656
OPT
B R658
2.2K C R655
C 10K
B BOOSTER
C603 C638 Q608
E
0.01uF 100uF 2SC3875S
GND_TU GND_TU
[SCART PIN8]
P_12V
OPTION: RF AGC
(USE ONLY FOR SECAM) 3
2 C
R416 R417 Q402
0 0 B
2SC3875S
E 1
013:C8
REC_8
C633 USE FOR SECAM R414 TP445
C 3 4.89V / 9.09V_120ohm(LOAD)
4.7uF 001:F8 1K 2
6.3V B Q401
PIO2B6 2SC3875S
TP636 5.19V / 10.91V_1Kohm(LOAD)
C R642 E 1
USE FOR SECAM_1 10K
Q603 B AGC_SPEED_CTL TP446
2SC3875S
USE FOR SECAM USE FOR SECAM R415
E C 3 Q400
001:F8 1K 2 B
GND PIO2B7 2SC3875S
E 1
C604-*1 GND TP447
10pF For SECAM
Q603, R642
USE FOR SECAM_LCD
C604, C633
GND
5V_TU
5.0V
HH-1M3216-501 OPTION
L607
TP660
ST UART FOR DEBUG
READY
C643
2.2uF
GND
OPT
C403
0.1uF 16V
IC401
ICL3232CBNZ
OPT
C404 C1+ 1 16 VCC
0.1uF OPT
C405 V+ GND
2 15
0.1uF
OPT
C1- T1OUT
3 14
C2+ R1IN
4 13
OPT C406 C2- R1OUT
5 12
0.1uF
C407 V- T1IN
6 11
0.1uF
L604 OPT T2OUT T2IN
7 10
3.3uH
FI-B2012-332KJT
TU_MAIN R2IN R2OUT
GND 8 9
R651 GND GND
0
TV_VOUT
Q607
2SA1504S
GND
AM_AUDIO to MSP
[POWER BLOCK]
5.0V For only C.I.
Over current protection can be operated
GND
IC507
GND
KIA78R05F
6
6
3 4 5
3.3V
1 2 3 4 5
5.0V_CI
P_6.0V
GND
GND
C532
0.1uF C534
220uF
16V 1 C542
C544 C543
C541
0.1uF 0.1uF
100uF 2 100uF
16V
16V
5.0 volt
GND GND
IC503 R1775
GND CI_EN 100
KIA78R05F
GND
R1776
6 4.7K
IC505
KIA78R33F 1 2 3 4 5
GND
P_6.0V 5.0V
3.3V_TUNER
4 5
GND
GND
1 C529
C531
C533
C527 0.1uF 0.1uF
100uF 100uF
2 16V
C551 C549 16V
0.1uF 100uF
16V 16V
GND GND
GND_TU
R557
22
1/10W
5%
CPU(STi5100) core 1.25 volt
IC501
GND SC156515M-1.8TR
VIN VO
Min of Vc:2V Ic:20uA 2 4
EN ADJ
1 5
P_3.3V 1.2V
3
GND
C517
220uF
C518
16V C524 C526
0.1uF
470uF 0.1uF
16V
GND
1.8V Regulator for TUNER
Locate close to the TUNER
P_3.3V
2.5V
1.8V
IC502
SC1565IST-2.5TR IC500
SC1565IST-1.8
1 3 VO
VIN 3 VO
2 1
GND 2
C523 C525
C515 C516 GND
0.1uF C521 C522
100uF 100uF
0.1uF 0.1uF 100uF
16V 16V 16V
GND GND
GND
GND
CI OPTIONs(UK)
3V3_CI
IC403 C409
74LVC32AD 0.1uF
16V
003:E5 1A 1 14 VCC
CI_CD1 GND
003:E7 1B 4A
CI_CD2 2 13
001:E2 1Y 4B
IRQ2 3 12
R421
47 2A 4Y
4 OR gate 11
2B 3B
5 10
2Y 3A
6 9
GND 3Y
7 8
GND
IC402
3V3_CI
TC74LCX08FT
1A VCC
003:H6;003:L3 1 14
CI_OE C410
1B 4B 16V
003:E6;003:L4 2 13 0.1uF
CI_IORD
003:G3 1Y 3 12 4A GND
D_T/R
2A 4 11 4Y
003:H6;003:L3 FE_TS_DATA_VAL AND GATE
2B 5 10 3B
TUNER_ERROR
47 2Y 3A
003:G3 6 9
R412
FE_TS_DATA_VAL_AND_ERR
GND 3Y
7 8
GND
IC404
74LVC14APW 3V3_CI
1A 1 14 VCC
003:E6 CI_WAIT
C411
R413
001:F2 47 1Y 2 13 6A 0.1uF
CPU_WAIT 16V
2A 6Y GND
3 12
INVERTER
2Y 5A
4 11
3A 5Y
5 10
3Y 4A
6 9 CI_CS 003:F8;003:H6;003:I4;003:K3;003:K6
001:F8;003:B4 TS_SEL
GND 4Y
7 8 CI_LATCH
003:K6
003:B7 TS_SEL_CI
GND
3.3V 3V3_CI
L400
HH-1M3216-501
C412 1 C413 1 C414 C415
10uF 16V 10uF 0.1uF
2 0.1uF 2 16V 16V
16V
GND GND
SPDIF OPTIC JACK
3V3_CI
OPTION
CON400
35337-0320
C408
0.1uF
OPT
OPT 1 J400
SPDIF
GND
2
SPDIF_OUT GND GND
2 1
3
R456 OPT R437
22 INPUT GND
4 3
R455 OPT
Option for remote control 5V GND
GND 5.0V 6 5
R419 OPT
DEBUG_UART_RX
PI4[1]
R420 OPT STi5100
DEBUG_UART_TX PI4[0]
3_STATE_BUFFER
IF YOU WANT TO USE CN401, R449,R450 -> 0 Ohm ADD
R543,R544 -> DELETE SPDIF_STI_OUT
TP442 SPDIF_MSP_OUT
SPDIF_OUT
LRCLK_DTV
HDMI_LRCK
LRCLK_MUX
% MUST BE PLACED NEAR IC100
5.0V
C537
0.1uF
GND
TP530
E
001:L5 R524
0
CVBS
B 2SA1504S
Q504 R550
C 0
SP_CVBS
013:B2
GND
005:C8
OUT_LEFT_AMP
ADAC_8V
005:C9
OUT_RIGHT_AMP
IC506 C553
MC33078DR2G
0.1uF
R537
15K OUTPUT1 VCC
1 8
GND
R544
001:K5 R543
10K INPUT1- 2 7 OUTPUT2
OUT_LEFT R534
15K
10K
INPUT1+ INPUT2- R540
3 6 10K
VEE INPUT2+
4 5
R541 R536
10K 10K
GND
R539 GND GND
001:K6
10K
OUT_RIGHT
Q502
2SC3875S
R526
E
001:F8 2K
DTV_AUDIO_MUTE_BUF
B GND
C
R527 E Q503
C539 2K
2SC3875S R547
0.1uF B
100 013:C5
C DTV_LOUT
R548
TP520 100 013:C4
GND DTV_ROUT
GND
OUT_LEFT_AMP
OUT_RIGHT_AMP
FAN OPTION
FAN
IC406
KIA78R09F
FAN_1EA
6 P400
GIL-G-03-S3T2
C424 FAN_VCC
1 2 3 4 5 0.1uF L406
1
R432
C425 FAN_1EA 12K
FAN_VCC R431 100 L407 2
FAN 47uF
1 FAN 16V
C417 C419 R433
47uF FAN_ALARM FAN_1EA FAN_1EA JP402 3
0.1uF 16V 10K
FAN 2 C438
FAN
FAN READY JP411
R423
100
9V_ON L411
R427
4.7K
FAN
IC405
KIA78R09F
FAN
6 C422
D401 EU1ZV(1)
0.1uF R429 10
1 2 3 4 5 FAN_FULL HD
FAN C423
47uF
16V
FAN_PDP
FAN
R429-*1
18
C416
C418
0.1uF 47uF
16V
FAN FAN
P402
SMW200-08
FAN L402 JP408
R424 FAN_FULL_HD
HH-1M3216-501
100 FAN_VCC 1
8V_ON
FAN_FULL_HD
2
L412 JP410
HH-1M3216-501
5.0V 3
FAN_FULL_HD
4
L401 FAN_FULL_HD
HH-1M3216-501
5
C439
FAN_FULL_HD JP406 6
FAN_ALARM
R400 100 L403
7
FAN
P_3.3V C436 FAN_FULL_HD
IC407 FAN_FULL_HD JP404
READY 8
LM75
LM75CIMX-3 JP409
FAN
R425 FAN_FULL_HD
SDA 100 1 +VS 8 L405
SDA
FAN
R426
SCL 100 2 7 0.1uF
SCL A0
C427 FOR ONLY USE 60"PDP(PY3 Tool)
FAN FAN
3 6
C420 OS A1
C421
READY READY R430
4 5
GND A2 10K
TP437
I2S SWITCHING (DTV&HDMI)
P_3.3V
IC410
TC74LCX157FT
R438 0
SEL 1 16 VCC
1A 2 LOW 15 ST
1B 3 HIGH 14 4A PCMDATA_DTV
R441 100 TO MSP
1Y 4 13 4B HDMI_LRCH
C435
READY R446 100
2A 5 12 4Y PCMDATA_MUX
C434
READY
2B 6 11 3A SCLK_DTV
R439 100
2Y 7 10 3B HDMI_SCK
R448 100
C432 GND 3Y SCLK_MUX
8 9
READY
C433
READY
LGE Internal Use Only