LG 22LD330 Service Manual Download

Page: 26 / 27

THERMAL

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.

R1003

10K

26_32INCH

0.01uF

C1046

50V

RL_ON

LD1002

SAM2333

0.01uF

C1057

50V

2SC3875S
Q1000

26_32INCH

0.01uF

C1011

50V

0.01uF

C1021

50V

R1065

33K

26_32INCH

C1056
1uF
25V

R1049

33K

R1048

10K

Q1001
RT1C3904-T112

0.01uF

C1010

50V

C1005
0.1uF
50V

C1009
100uF
16V

POWER_SW

R1002

10K

Q1003

SI4925BDY

EBK32753101

D2_1

D2_2

D1_1

D1_2

Q1004

RT1C3904-T112

R1068

10K

R1069

1.6K

R1070

22K

C1048
1uF
25V

0.01uF

C1053

50V

R1005

1.2K

P_3.5V

+16V_NTP

+3.5V_MST

P_12V_SMALL_15V

+3.5V_MST

+3.3V_MST

+5V_+12V_LCD

+3.5V_MULTI

+3.5V_MST

+5V_MULTI

P_12V_SMALL_15V

P_3.5V

+3.5V_MST

+3.5V_MULTI

PANEL_ON

C1058
0.1uF
50V

C1019
10uF
16V

C1045
10uF
16V

P_24V_SMALL_15V

R1065-*1

10K

19_22INCH

IC1006

MP2212DN

GND

5 VCC

6 SW_1

7 SW_2

8 EN/SYNC

+3.5V_MULTI

R1056

19_22INCH

C1024
0.1uF
50V

19_22INCH

10K

R1059

26_32INCH

C1026
100uF
16V

READY

5.6K

R1058

D1001

50V

19_22INCH

10uF

C1030

25V

10uF

C1031

25V

C1000
10uF
16V

C1020
10uF
16V

+1.2V_VDDC_MST

C1054
0.1uF
50V

+1.8V_DDR

+1.8V

+3.5V_MULTI

C1014
0.1uF
16V

IC1001

BD9130EFJ-E2

ITH

VCC

GND

ADJ

PGND

PVCC

R1044

10K

R1045

R1053

3.3K

C1016
10uF
10V

C1022
10uF
6.3V

C1015
0.1uF
50V

C1023
0.1uF
50V

R1043

12K

C1060
560pF
50V

C1055
2200pF
50V

READY

R1078
3.3

READY

C1059
10uF
16V

C1013
10uF
16V

C1017
10uF
16V

C1018
10uF
16V

IC1002

AP1117EG-13

ADJ/GND

OUT

R1050

2.2K

R1051

2.2K

R1052

2.2K

C1043
68uF
35V

R1012

26_32INCH

L1009

3.6uH

L1003

CIC21J501NE

500

L1008

500

R1054
120

R1055
56

L1004

120-ohm

L1005

19_22INCH

120-ohm

L1006

26_32INCH

120-ohm

L1007

120-ohm

L1013

120-ohm

C1035
1uF
25V

C1025
0.1uF
16V

L1002

2.2uH

R1020
10K

R1018

26_32INCH

C1027
68uF
35V

READY

R1024

C1029
0.1uF
50V

+3.5V_MULTI

R1011

C1036
1uF
25V

READY

C1037
1uF
25V

READY

C1038
1uF
25V

READY

43K

R1057

0.1uF

C1040

50V

IC1004

AP1117EG-13

ADJ/GND

OUT

110

R1019

110

R1025

C1042
100uF
16V

0.1uF

C1039

50V

R1027

330

+5V_TUNER

R1026

330

+5V_USB

C1041
100uF
16V

READY

IC1000

AP1117EG-13

ADJ/GND

OUT

C1047
0.1uF
16V

C1049
0.1uF

16V

READY

C1033
0.47uF
50V

C1032
0.1uF
50V

P1000

FW20020-24S

26_32INCH

12V

GND

3.5V

24V

INV ON

GND

24V

12V

3.5V

GND

24V

GND

3.5V

GND

Power on

A-Dim

GND

3.5V

GND

12V

P-Dim

GND/P-Dim2

Error out

R1028

19_22INCH

OLP

R1015

NON_19_22INCH

R1023

OPC_OUT

R1037
6.8K

OPT

+3.5V_MULTI

R1021

BIG_NON_AUO

R1017

BIG_AUO/IPS

DISP_EN/VAVS_ON

+3.3V_MULTI_MST

R1035

BIG_LGD/SHARP FHD

R1029

100

EXCEPT_BIGCMO

E-DIM

C1012
1uF
25V

OPT

R1030

100

BIG_CMO

Q1002

2SC3052

I-DIM

C1008
0.1uF
16V

OPT

R1047

10K

R1034

BIG_AUO

PANEL_STATUS

R1031

BIG_CMO

R1046

3.3K

R1032

19_22INCH

R1040
4.7K

READY

P1001

SMAW200-12

19_22INCH

15V

GND

3.5V

GND

OLP

INVERTER_ON

PWM_Dim

A_Dim

P_24V_SMALL_15V

P_3.5V

P_12V_SMALL_15V

R1010

19_22INCH

R1001
4.7K

26_32INCH

L1010

120-ohm

READY

ZD1000

3.6V

READY

L1011

120-ohm

READY

ZD1001
3.6V

READY

C1061
100uF
16V

READY

C1004
1uF
25V

R1022

C1006
100uF
16V

L1001

3.6uH

C1007
0.1uF
50V

+3.5V_MULTI

D1000

50V

19_22INCH

10uF

C1002

25V

R1014

P_12V_SMALL_15V

10uF

C1001

25V

R1036
10

19_22INCH

L1000

500

IC1003

MP2212DN

GND

5 VCC

6 SW_1

7 SW_2

8 EN/SYNC

C1003
0.1uF
50V

C1064
0.1uF
50V

19_22INCH

15K

R1009

75K

R1008

+5V_MULTI

2SC3875S

Q1005

26_32INCH

R1004

READY

R1000

4.7K

26_32INCH

R1016

26_32INCH

10K

R1013

26_32INCH

R1007

26_32INCH

R1061

4.7K

R1062

100K

R1066

4.7K

READY

R1067

100K

C1052
10uF
16V

C1050
0.1uF
50V

+3.5V_MULTI

C1071

10uF
16V

C1034
10uF
16V

C1072
0.1uF
16V

R1006
100K

READY

R1063

12K

R1064

10K

C1068
2.2uF
10V

C1070
2.2uF
10V

C1067
2.2uF
10V

C1065
2.2uF
10V

R8044

470K

R8043

470K

R1041

12K

R1042

10K

R1071

26_32INCH

R1072

19_22INCH

R1033

BIG_LGD

R1073

47K

READY

ZD1002
3.6V

READY

+3.3V_MULTI_MST

100uF

C1028

16V

READY

C1063
0.1uF
50V

C1062
10uF
6.3V

+1.8V

IC1008

AP1117EG-13

ADJ/GND

OUT

R1079
56

R1077
120

R1076

READY

+3.5V_MST

C1066
100pF
50V

READY

C1069
100pF
50V

READY

R1080

10K

C1044
2.2uF
10V

POWER_SW

R1081

10K

C1051
10uF
6.3V

C1073
0.1uF
50V

C1074
1uF
25V

READY

R1082

READY

R1083

SHARP HD

IC1007

MP20045DQ-LF-Z

VOUT_1

VIN_2

VOUT_2

VIN_1

GND

EP[GND]

IC1005

MP20045DQ-LF-Z

VOUT_1

VIN_2

VOUT_2

VIN_1

GND

EP[GND]

R1084

READY

R1038

NON_OPC

R1039

HD_OPC

R1060

6.2K

NON_OPC

R1075

6.2K

HD_OPC

180K

R1074

9 9

POWER

2009/12/23

LED Block

**5V_MULTI->3.3V->1.2V

**Switch 12V:P12V **Switch 3.5V:3.5.V_MULTI

**DC-DC CONVERTER

OUT:6.8V

*ST 3.5V->3.3V

MAX 3A

OUT:1.27V

NTP,AUDIO DSP

DDR2, Vref

V0 = 0.8*(1+(R2/R1))

MAX 2A

MAX 1A

V0 = 0.8*(1+(R1/R2))

V0 = 1.25*(1+(R2/R1))

OUT:1.85V

Close to Q1003

**DC-DC CONVERTER

V0 = 0.8*(1+(R1/R2))

MAX 3A

LD330/LD420

LP91H

EAX61532102

LGD

PIN No

Err_out

V4:VBR-A
V5:VBR-A

PWM_DIM

PWM_DIM

INV_ON

GND

PWM_DIM

SHARP

INV_ON

PWM_DIM

INV_ON

Err_out

AUO

CMO(09)

A-DIM

*12V -> 5V_MULTI

**12V->TUNER 5V

Err_out

IPS

INV_ON

PWM_DIM

SMALL

A-DIM

INV_ON

Err_out

closed IC1007

MAX 1A

NTP,AUDIO DSP

OUT:1.85V

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 22LD330

Page 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LP91H MODEL 32LD330 32LD330 MA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63285201 1003 REV00 ...

Page 2: ...ly Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 SPECIFICATION 3 ADJUSTMENT INSTRUCTION 8 TROUBLE SHOOTING 13 BLOCK DIAGRAM 16 EXPLODED VIEW 17 SVC SHEET ...

Page 3: ...d Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path...

Page 4: ...specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC No Item Specification Measurement Remark 1 Screen Size 32 wide Color Display Module Resolution 1366 768 2 Aspect Ratio 16 9 3 LCD Module 32 TFT WX...

Page 5: ...ED X 0 640 Y 0 330 Green X 0 300 Y 0 600 Blue X 0 150 Y 0 070 White X Typ 0 280 Typ AUO 32 HD Y 0 03 0 290 0 03 RED X 0 640 Y 0 330 Green X 0 290 Y 0 600 Blue X 0 150 Y 0 060 White X Typ 0 278 Typ SHARP 32 HD Y 0 03 0 285 0 03 RED X 0 642 Y 0 344 Green X 0 280 Y 0 606 Blue X 0 143 Y 0 075 4 Module Contrast ratio 2 400 3 000 AUO 32 HD 700 1 400 IPS 32 HD 3 000 5 000 SHARP 32 HD 5 Luminance Variatio...

Page 6: ...nalog PC RGB DTV NOT SUPPORT 6 Component Video Input Y PB PR No Specification Remarks Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 480 15 73 59 94 13 500 SDTV DVD 480I 525I 2 720 480 15 75 60 00 13 514 SDTV DVD 480I 525I 3 720 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 4 720 480 31 47 59 94 27 000 SDTV 480P 5 720 480 31 50 60 00 27 027 SDTV 480P 6 720 576 31 25 50 00 27 000 SDTV 576P...

Page 7: ...ification Proposed Remarks Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 x 480 15 73 59 94 13 500 SDTV DVD 480I 525I Spec out 2 720 x 480 15 75 60 00 13 514 SDTV DVD 480I 525I but display 3 720 x 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 4 720 x 480 31 47 59 94 27 SDTV 480P 5 720 x 480 31 5 60 00 27 027 SDTV 480P 6 720 x 576 31 25 50 00 27 SDTV 576P 7 1280 x 720 44 96 59 94 74 176 HD...

Page 8: ...ad the MSTAR main software IC800 Mstar ISP Utility 1 Using D L Jig 2 Using USB Memory Stick 2 Input Tool Option 3 Download the EDID EDID datas are automatically downloaded when adjusting the Tool Option2 4 ADC Calibration RGB Component 4 Check SW Version 3 2 SET assembly adjustment items 1 Input Area option 2 Adjustment of White Balance Auto Manual 3 Input Tool Option Area option 4 Intelligent Sen...

Page 9: ...input menu can differ the model spec Refer to Job Expression of each main chassis assembly EBTxxxxxxxx for Option value Caution Don t Press IN STOP key after completing the function inspection 4 3 EDID D L method Recommend that don t connect HDMI and RGB D SUB cable when downloading the EDID If not possible recommend that connect the MSPG equipment There are two methods of downloading the edid dat...

Page 10: ...0 BC 88 21 00 00 18 00 00 00 FC 00 4C 60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD 70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 00 56 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 14 01 03 80 46 27 78 0A D9 B0 A3 57 49 9C 25 20 11 49 4B 21 08 00 45 40 01 01 61 40 01 01 01 01 30 01 01 01 01 01 01 01 1D 00 72 51 D0 1E 20 6E 28 40 55 00 C4 8E 21 00 00 1...

Page 11: ...djustment mode at the same time heat run mode when pushing the power on by power only key Maintain the DDC adjustment mode with same condition of Heat run Maintain after AC off on in status of Heat run pattern display 2 Release the DDC adjustment mode Release the adjust mode after AC off on or std by off on in status of finishing the Hear run mode Release the Adjust mode when receiving the aging o...

Page 12: ...id and change Dynamic Contrast Off Dynamic Colour Off Picture Mode change Vivid Vivid User If you miss the upper condition the coordinates of W B can be lower than the spec 5 3 Checking the function of Local Dimming using adjusts Remote control Dimming checking is doing in Power Only mode Enter the signal of component Pattern 7 combination Time 225 1920 1080 Push the button Tilt Checking the funct...

Page 13: ...y A PROCESS Fail Fail Pass Pass Check LED Assy Change IC1002 IC1008 Q1003 Pass Check short of IC1001 IC1005 IC1007 Fail Re soldering or Change defect part of IC1001 IC1005 IC1007 Fail No Raster B Process Check LED status On Display Unit Repeat A PROCESS Pass Fail Check Output of IC802 Change IC802 Fail Change Inverter Connector or Inverter Fail Pass Fail Pass Change LVDS cable Fail Check LVDS Cabl...

Page 14: ...ct part Pass No Raster on COMMPONENT Signal Check Input source Cable and Jack Pass Re soldering or Change the defect part Pass Check the Input Output Of IC800 Fail Re soldering or Change the defect part Repeat A B Process Check the Input Output of JK101 Fail Pass No Raster on HDMI Signal Check Input source Cable And Jack Pass Check the Input Output of JK301 JK302 JK303 Fail Re soldering or Change ...

Page 15: ...nput Fail No Raster On AV Video S Video Signal No Signal On TV RF Signal Check Input source Cable and Jack Pass Check Input source Cable and Jack Pass Check The Input Output of JK101 Pass Re soldering or Change the defect part Pass Fail Pass Repeat A B Process Check the Input Output Of IC800 Fail Re soldering or Change the defect part Pass Check The Input Output Of TU500 Pass Re soldering or Chang...

Page 16: ...WC08 EEP_SCL SDA EEP_SCL SDA TXCE2 TXCE3 TXCLKE TXCE1 TXCE0 TXCO1 TXCO3 TXCO2 TXCO0 TXCLKO M_SCL SDA MAIN SCLAER Matrix HD LGE 4765A FHD LGE 4767A IC800 EEPROM 24C02 IC302 TU500 IC802 IC803 IC801 IC600 P402 P403 M_SCL SDA SIDE REAR HDMI3 JK303 USB JK204 RS 232C JK200 USB SVC JK205 HDMI1 JK301 HDMI2 JK302 EEPROM 24C02 IC301 EEPROM 24C02 IC300 DDC_SCL1 SDA1 DDC_SCL2 SDA2 DDC_SCL3 SDA3 Contr oller ST...

Page 17: ...and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPO...

Page 18: ...2_R R109 75 R108 75 R107 75 R104 220K R118 12K R117 12K R119 12K R120 12K R113 10K R115 10K R116 10K R100 220K R111 220K R112 220K R110 75 R114 10K JK101 PPJ238 01 5D GN2 O SPRING 6D GN2 E LUG 4D GN2 CONTACT 7E BL2 E LUG S 5E BL2 O SPRING 7F RD2 E LUG S 5F RD2 O SPRING_1 5G WH2 O SPRING 4H RD2 CONTACT 5H RD2 O SPRING_2 6H RD2 E LUG 6A YL1 E LUG 5A YL1 O SPRING 4A YL1 CONTACT 5B WH1 O SPRING 4C RD1...

Page 19: ... 4 7K R221 4 7K R216 100 R217 100 R218 100 C208 0 1uF 50V OCP_READY C209 10uF 16V OCP_READY L200 120OHM OCP_READY 5V_USB R209 1K OCP_READY R210 4 7K OCP_READY R237 0 Non_OCP C210 10uF 6 3V R207 68 R208 68 C213 68pF 50V C211 68pF 50V R219 4 7K READY L201 500 C212 220uF 16V C214 100uF 16V D213 OCP_READY A AC C R238 510 OCP_READY R224 10K SIDE_AV R225 10K SIDE_AV JK200 SPG09 DB 009 1 2 3 4 5 6 7 8 9 ...

Page 20: ...304 100 C301 0 01uF R331 100 R306 100 R307 100 C302 0 01uF R327 100 R308 10K R310 10K R309 10K R311 10K R316 56K READY JK302 YKF45 7058V 14 NC 13 CEC 5 DATA1_SHIELD 20 SHIELD 12 CLK 11 CLK_SHIELD 2 DATA2_SHIELD 19 HPD 18 5V_POWER 10 CLK 4 DATA1 1 DATA2 17 DDC CEC_GND 9 DATA0 8 DATA0_SHIELD 3 DATA2 16 SDA 7 DATA0 6 DATA1 15 SCL JK301 YKF45 7058V 14 NC 13 CEC 5 DATA1_SHIELD 20 SHIELD 12 CLK 11 CLK_S...

Page 21: ...0K Q402 2SC3052 E B C 3 5V_MST R408 10K R411 4 7K R404 0 READY R402 0 READY C403 470pF 50V NON_19_22INCH SUB_SCL LED_R P404 12507WR 03L 19_22INCH 1 KEY1 2 KEY2 3 GND 4 P403 FF10001 30 19_22INCH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 5V_ 12V_LCD TXCE0 TXCE0 TXCE1 TXCE1 TXCE2 TXCE2 TX SMALL_NC2 SMALL_NC1 SMALL_OPC_OUT SMALL_NC3 SMALL_OPC_EN SMALL_NC4 R414...

Page 22: ...CL 5V_TUNER C504 50V READY C500 27pF 50V L502 READY 10uH C507 82pF 50V READY C508 10uF 16V L500 120 ohm READY Q502 ISA1530AC1 E B C R502 4 7K R506 220 R507 220 C505 100uF 16V READY C506 100uF 16V READY R505 47 R504 47 C503 0 1uF 50V R500 0 R501 0 TU500 TAFJ Z001D PAL_TUNER 5 MOPLL_AS 11 VIDEO 2 NC_2 10 NC_4 4 RF_AGC 1 NC_1 9 SIF 8 NC_3 3 B 5V 7 SDA 6 SCL 12 GND 13 SHIELD TU500 1 TAFJ H001F 5 MOPLL...

Page 23: ...R601 100 R600 3 3K R676 100 R677 100 R678 100 R602 100 R603 100 R658 12 R653 12 R621 12 R654 12 R628 4 7K R667 4 7K R671 3 3 R635 3 3 IC600 NTP 3100L 1 BST1A 2 VDR1A 3 RESET 4 AD 5 DVSS_1 6 VSS_IO 7 CLK_I 8 VDD_IO 9 DGND_PLL 10 AGND_PLL 11 LFM 12 AVDD_PLL 13 DVDD_PLL 14 TEST0 15 DVSS_2 16 DVDD 17 SDATA 18 WCK 19 BCK 20 SDA 21 SCL 22 MONITOR_0 23 MONITOR_1 24 MONITOR_2 25 FAULT 26 VDR2B 27 BST2B 28...

Page 24: ...0M 57 VDDC_1 58 AUL5 59 AUR5 60 AUVRM 61 AUOUTL2 62 AUOUTR2 63 AUOUTL1 64 AUOUTR1 65 AUL0 66 AUR0 67 AUL1 68 AUR1 69 AUL2 70 AUR2 71 AUL3 72 AUR3 73 AUCOM 74 AUL4 75 AUR4 76 GND_4 77 AUVRP 78 AUVAG 79 AVDD_AU 80 GND_5 81 VDDC_2 82 DDCA_CK 83 DDCA_DA 84 DDCDA_CK 85 DDCDA_DA 86 DDCDB_CK 87 DDCDB_DA 88 GPIO20 89 VDDP_1 90 VDDC_3 91 UART2_RX 92 UART2_TX 93 DDCDC_CK 94 RXCCKN 95 RXCCKP 96 DDCDC_DA 97 R...

Page 25: ... 0 01uF C900 0 01uF 50V C901 0 01uF C902 0 01uF C903 0 01uF C906 0 01uF C907 0 01uF C908 0 01uF C909 0 01uF C910 0 01uF C911 0 01uF C912 0 01uF C913 0 01uF C914 0 01uF C915 0 01uF C916 0 01uF C917 0 01uF 1 8V_DDR R906 150 READY V_REF C918 0 1uF 50V C919 10uF 10V R907 1K R908 1K IC900 H5PS5162FFR S6C J2 VREF J8 CK H2 VSSQ2 B7 UDQS N8 A4 P8 A8 L1 NC4 L2 BA0 R8 NC3 K7 RAS F8 VSSQ3 F3 LDM P3 A9 M3 A1 ...

Page 26: ... OLP R1015 0 NON_19_22INCH R1023 0 OPC_OUT R1037 6 8K OPT 3 5V_MULTI 0 R1021 BIG_NON_AUO 0 R1017 BIG_AUO IPS DISP_EN VAVS_ON 3 3V_MULTI_MST 0 R1035 BIG_LGD SHARP FHD R1029 100 EXCEPT_BIGCMO E DIM C1012 1uF 25V OPT R1030 100 BIG_CMO Q1002 2SC3052 E B C I DIM C1008 0 1uF 16V OPT R1047 10K 0 R1034 BIG_AUO PANEL_STATUS R1031 0 BIG_CMO R1046 3 3K R1032 0 19_22INCH R1040 4 7K READY P1001 SMAW200 12 19_2...

Page 27: ......

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