LG Electronics 42LT640H-ZA CI Region, Option name of this page CI SLOT because of Hong Kong

Page 35
CI Region

CI Region

CI SLOT

*Option name of this page : CI _ SLOT (because of Hong Kong)

+5V_CI_ON

CI_DATA[0-7]

CI TS INPUT

/CI_CD1 *Option name of this page : CI _ SLOT (because of Hong Kong)

CI_TS_DATA[4]

CI_TS_DATA[5]

CI_TS_DATA[6]

CI_TS_DATA[7]

CI_IORD Manual background

CI_IOWR Manual background

CI_MDI[0]Manual background CI_MDI[1]Manual background CI_MDI[2]Manual background CI_MDI[3]Manual background

CI_MDI[4]Manual background

+5V_Normal

R1903

10K

C1903

 

0 . 1 u F

R1908

16V

100

 

AR1901

 

33

 

R1905

10K

C1905 0 . 1 u F

C1906

10uF

10V

R1910

0

OPT

EAG41860101 P1902 CI_SLOT

10067972-050LF

EAG41860102 P1901 OPT

10067972-000LF

351

362

373

384

395

406

41

7

42

8

43

9

4410

4511

4612

4713

4814

49

15

50

16

51

17

52

18

53

19

 

 

 

CI DATA[0-7]

 

 

 

 

 

 

 

CI_DATA[3]

DATA[0-7]

R1921 10K

 

 

 

 

 

 

CI_DATA[4]

 

 

 

 

 

 

 

 

 

 

 

 

CI_DATA[5]

 

 

 

 

 

 

CI_DATA[6]

 

 

 

 

 

 

 

 

 

 

 

 

CI_DATA[7]

 

 

 

 

 

 

 

 

R1919

47

 

_

 

 

 

 

 

 

 

 

CI

 

 

/PCM_CE

 

 

 

 

CI_ADDR[10]

 

 

 

 

 

 

 

 

 

 

 

 

 

CI_OE

 

 

 

 

 

CI_ADDR[11]

 

 

 

 

CI_ADDR[9]

 

 

 

 

CI_ADDR[8]

 

 

 

 

CI_ADDR[13]

 

 

 

 

CI_ADDR[14]

 

 

 

 

 

 

 

 

R1920

100

 

 

 

 

CI_WE

 

 

 

 

 

 

 

 

R1916

0

 

 

 

 

 

C1909

 

OPT

 

 

 

 

 

0 . 1 u F

 

 

Manual background /PCM_IRQA

CI_MDI[7]Manual background

CI_MDI[6]Manual background

CI_MDI[5]Manual background

CI_MDI[4]Manual background

CI_MDI[3]Manual background

CI_MDI[2]Manual background

CI_MDI[1]Manual background

CI_MDI[0]Manual background

CI_MISTRT

CI_MIVAL_ERR

CI_MCLKI Manual background

33

AR1905

FE_TS_DATA[7]

 

 

 

 

FE_TS_DATA[6]

 

 

FE_TS_DATA[5]

 

 

FE_TS_DATA[4]

33

AR1906

FE_TS_DATA[3]

 

 

 

 

 

FE_TS_DATA[2]

 

 

FE_TS_DATA[1]

 

 

FE_TS_DATA[0]

FE_TS_DATA[0-7]

AR1904

33

FE_TS_SYNC FE_TS_VAL_ERR

Manual backgroundManual background FE_TS_CLK

CI_MDI[5]Manual background CI_MDI[6]Manual background CI_MDI[7]Manual background

PCM_RSTManual background /PCM_WAITManual background

REG Manual background

CI_TS_CLK Manual background CI_TS_VAL Manual background CI_TS_SYNCManual background

 

R1906

10K

R1902

47

 

R1901

47

 

R1925

33

 

R1926

33

 

R1927

33

 

54

20

55

21

56

22

57

23

58

24

59

25

60

26

61

27

62

28

63

29

64

30

65

31

CI_ADDR[12]

CI_ADDR[7]

CI_ADDR[6]

CI_ADDR[5]

CI_ADDR[4]

CI_ADDR[3]

CI_ADDR[2]

CI_ADDR[1]

CI_ADDR[0]

CI_DATA[0]

CI_DATA[1]

CI HOST I/F

CI_TS_DATA[0] CI_TS_DATA[1] CI_TS_DATA[2] CI_TS_DATA[3]

 

33

 

AR1903

 

 

/CI_CD2

R1907

100

 

 

R1909 0

OPT

66

32

67

33

68

34

G2 69 G1

CI_ADDR[0-14]

CI_DATA[2]

CI_DETManual background

IC1902+3.3V_CI Manual background C1913 0 . 1 u F

 

 

 

 

 

 

+5V_Normal

 

 

 

 

 

 

C1914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50V

 

 

R1904

 

 

 

 

 

 

 

 

 

 

CLOSE TO

MSTAR

 

 

 

 

 

 

 

 

 

10K C1904

 

 

 

 

 

 

 

 

 

 

 

 

 

0 . 1 u F

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

CI_MISTRT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI_MIVAL_ERR

 

 

 

 

 

 

 

 

 

 

 

 

CI_MCLKI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI DETECT

 

 

 

 

 

 

 

 

 

 

+3.3V_Normal

 

 

+3.3V_CI

 

 

 

 

 

+3.3V_CI

+3.3V_CI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI_SLOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC1901

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

74LVC1G32GW

 

 

 

 

 

 

 

 

 

 

L1901

/CI_CD2

B 1

5

VCC

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLM18PG121SN1D

A 2

 

 

 

 

 

C1908

 

R1917

 

 

/CI_CD1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 . 1 u F

 

10K

 

 

 

 

 

 

 

GND 3

4

Y

 

 

 

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM_A[0]

CI_ADDR[7]

PCM_A[1]

CI_ADDR[6]

PCM_A[2]

CI_ADDR[5]

PCM_A[3]

CI_ADDR[4]

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

1

TOSHIBA

2

0ITO742440D

3

4

5

TC74LCX244FT

6

 

7

 

8

9

10

20

19

18

17

16

15

14

13

12

11

VCC 16V

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

Manual background CI_ADDR[0]

Manual background PCM_A[7]

Manual background CI_ADDR[1]

Manual background PCM_A[6]

Manual background CI_ADDR[2]

Manual background PCM_A[5]

Manual background CI_ADDR[3]

Manual background PCM_A[4]

C1901

C1902

R1915

0 . 1 u F

0 . 1 u F

47

CI_DET

OPT

 

 

 

 

 

/PCM_CD

 

 

R1918

 

 

47

CI POWER ENABLE CONTROL

 

CI_DATA[0]

33AR1907

PCM_D[0]

 

 

CI_DATA[1]

 

PCM_D[1]

 

7]

CI_DATA[2]

 

PCM_D[2]

 

-

 

 

 

 

CI DATA[0

CI_DATA[3]

 

PCM_D[3]

 

CI_DATA[4]

33AR1908

PCM_D[4]

D[0-7]

CI_DATA[5]

 

PCM_D[5]

 

CI_DATA[6]

 

PCM_D[6]

PCM

 

CI_DATA[7]

 

PCM_D[7]

 

 

 

 

 

 

 

PCM_D[0-7]

CI_DATA[0-7]

 

 

 

 

+5V_Normal

C1907

0 . 1 u F

16V

PCM_5V_CTL

Q1902

AO3407A

S

D

 

G

 

R1914

 

 

C1911

R1912

 

 

4 . 7 u F

22K

 

 

16V

10K

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1922 2.2K

C

R1913

10KB Q1901 MMBT3904(NXP)

R1924 E

10K

 

 

 

 

 

 

 

 

 

 

 

 

+5V_CI_ON

 

 

 

 

 

L1902

 

 

 

 

 

BLM18PG121SN1D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1923

 

 

 

 

 

 

 

 

C1910

 

 

C1912

 

 

 

 

 

10K

 

 

 

 

 

 

 

0 . 1 u F

 

 

 

0 . 1 u F

 

 

 

 

 

16V

 

OPT

 

 

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AR1912

CI_ADDR[8]

33

PCM_A[8]

CI_ADDR[9]

PCM_A[9]

CI_ADDR[10]

PCM_A[10]

CI_ADDR[11]

PCM_A[11]

 

AR1913

CI_ADDR[12]

33

PCM_A[12]

CI_ADDR[13]

PCM_A[13]

CI_ADDR[14]

PCM_A[14]

REG

/PCM_REG

 

AR1909

CI_OE

33

/PCM_OE

CI_WE

/PCM_WE

CI_IORD

/PCM_IORD

CI_IOWR

/PCM_IOWR

THE Manual backgroundSYMBOL 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.

EMEA INTERACTIVE

 

 

 

 

 

 

 

GP4_MSTAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2011 . 08 . 21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCMCI

 

 

 

 

 

 

 

 

 

 

 

1 9

2 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

Image 35
Contents http//biz.lgservice.com READ THE SAFETY PRECAUTIONS IN THIS MANUALhttp//aic.lgservice.com http//eic.lgservice.comSPECIFICATION CONTENTSSAFETY PRECAUTIONS SERVICING PRECAUTIONSIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSRemoval IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application rangeHDMI1-DTV/DVI RGB InputRGB-PC AnalogD-SUB 15PIN5.2. RGB Input PC 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR PCDVI 5.3. HDMI InputPC/DTV1. Application Range ADJUSTMENT INSTRUCTIONBoot file Download After downloading, have to adjust Tool Option again3.2. Function Check 4. Total Assembly line process4.1. Adjustment Preparation 3.1. ADC ProcessManual W/B process using adjust Remote control 4.4. EDID data4.2. DDC EDID Write RGB 128Byte 4.3 DDC EDID Write HDMI 256Byte4.6.2. HI-POT auto-check 4.5. Outgoing condition Configuration4.6. HI-POT Test 4.6.1. HI-POT auto-check preparation5.3. Method & notice 5.1. Signal Table5. Model name & Serial number D/L 5.2. Comand SetCI+ Key Value 6.1. Download Procedure6. CI+ Key Download method Half BLOCK DIAGRAMS7LR All rights reservedEXPLODED VIEW Copyright 2012 LG Electronics. Inc. All rights reserved EMEA INTERACTIVEGP4MSTAR 2011 . 08OLED THERMAL Step Up regulator 3 . 3V to 5VMAX 250mA+3.3VNormal FROM LIPS & POWER B/DPowerDET +1.5VDDRNTP-7500L IC501CONTROL IR & LED MIRROR Pol - change 51Pin LVDS Connector30Pin LVDS Connector For HD 60HzNormal For FHD 60/120HzSIDEHDMI HDMI1For CEC HDMI20 . 3 3 u F USBDIODES RGB/SPDIF/PC/HP/USBS7LRDIVXMS10 W25Q80BVSSIG IC1300MX25L8006EM2I-12G IC1300-*1SI2156DVB1INPUTH P4RGLOBALTUNERBLOCKSI2176ATSC1INPUTH PILG1001 A2 IC1501LGDT1001 Full Scart/ Comp1 EXTSPK OUT UART/I2C SWITCHEXTSPK AMP EXTSPKCONTROL/DEBUGREAL TIME CLOCKRTC EXTERNALPOWER OUT 5V/12VOption name of this page CI SLOT because of Hong Kong CI RegionSMD GASKET Page 1. Trouble Shooting Contents of LCD TV Standard Repair ProcessA2 Check Power Board 24V,12V,3.5V output A. Video errorMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable LCD TVBoard voltages of PowerCheck various No VideoSignal strength Normal over 30% Signal Quality Normal over 30% A. Picture ProblemBy using Digital signal level meter By using Diagnostics menu on OSD Menu→Setup→Manual TuningLink Cable Check color by input -External Input COMPONENT -RGB※ Check and replaceCheck color condition by input -External Input -Component RGB Connect other external device and cableExternal device screen error-Color error Vertical/Horizontal bar, residual image, light spotCheck Power On ‘”High” B. Power errorStand-By Red Operating white Check Power LEDPOWEROFFCPUABNORMAL Check Power Off Starusinstart menuIf Power Off mode is not displayed Check Power B/D voltage POWEROFFABNORMAL1Check audio B+ C. Audio errorPower Board Check user menu Speaker offCheck audio B+ Voltage 20V or In case of External Input signal error Check and fix external deviceOutput signal D. General Function Problem1. Remote controlR/C operating error Check & Repair Cable connection Connector solderS/W Version D. Function errorCheck input signal Y Check technical Signal information input? - Fix informationIdentify nose type E. NoiseF. Exterior defect Standard Repair Process Detail Technical Manual A. Video errorVideo error, video lag/stopMENU -Æ red keycustomer support -Æ signal test -Æ select channel When the signal is strong, use the attenuator -10dB, -15dB, -20dB etcVersion 1. Checking method for remote controller for adjustmentPress the IN-START with the remote controller for adjustment ALL MODELSYou can view 6 types of patterns using the ADJ Key A. Video errorColor errorAppendix Exchange T-Con Board Appendix Exchange T-Con Board No picture/Sound Ok A - 3/5 Appendix Exchange PSULED driverNo Light Dim LightPress damage Appendix Exchange the ModuleUn-repairable Cases In this case please exchange the module Panel Mura, Light leakageUn-repairable Cases In this case please exchange the module Entry method 1. Press the IN-START button of the remote controller for adjustment2. Check the entry into adjustment item B. Power error Off when on, off whiling viewing2. Select the AUDIO function of the Menu C. Audio errorNo audio/Normal video1. Press the MENU button on the remote controller Checking method