LG Electronics 32LS679C-ZC service manual LVDS for large inch, LGE Internal Use Only

Page 27
LVDS for large inch

LVDS for large inch

[51Pin LVDS Connector] (For FHD 60Hz)

FOR FHD REVERSE(10bit)

[30Pin LVDS Connector]

FHD

P703

FI-RE51S-HF-J-R1500

Change in S7LR

(For HD 60Hz_Normal)

1

2

3

4

5

6

7

8

9

10

11

LVDS_SEL

+3.3V_Normal

OPT

 

R705

 

3.3K

 

OPT

SCANNING_EN

R710

 

10K

+3.3V_Normal

 

PWM_DIM

OPT

PSU_T120_LGD

R706

R703

3.3K

0

 

 

OPT

 

R704

Manual background OPC&SCANNING_CTRL

MIRROR

Pol-change

 

 

 

 

 

 

 

RXA4+

RXA0+

 

 

 

RXA0-

RXA4-

RXA0-

 

 

 

RXA0+

RXA3+

RXA1+

 

 

 

RXA1-

RXA3-

RXA1-

 

 

 

RXA1+

RXACK+

RXA2+

 

 

 

RXA2-

 

 

 

 

 

 

 

 

 

RXACK-

 

 

RXA2-

 

 

 

RXA2+

RXA2+

RXACK+

 

 

 

RXACK-

RXA2-

RXACK-

 

 

 

RXACK+

RXA1+

RXA3+

 

 

 

RXA3-

RXA1-

RXA3-

 

 

 

RXA3+

RXA0+

RXA4+

 

 

 

RXA4-

HD

P705

FF10001-30

1

2Manual backgroundManual background

OPT

3R713

 

0

 

4

 

 

 

5

 

 

 

6

 

 

RXA3+

7

 

 

 

 

RXA3-

8

 

 

 

 

 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

10K

RXA4+

Manual background RXA4-

Manual background RXA3+

Manual background RXA3-

Manual background RXACK+

Manual background RXACK-

Manual background RXA2+

Manual background RXA2-

Manual background RXA1+

Manual background RXA1-

Manual background RXA0+

Manual background RXA0-

 

AUO_GND/LGD_NC

 

 

 

 

 

RXB4+

 

 

 

 

 

 

AUO_GND

 

 

 

R709

 

RXB4-

 

 

10K

 

 

 

 

 

 

 

 

 

Manual background RXB3+

Manual background RXB3-

Manual background RXBCK+

Manual background RXBCK-

RXA0-

RXA4-

 

 

 

RXA4+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXB4+

 

RXB0+

 

 

 

RXB0-

RXB4-

 

RXB0-

 

 

 

RXB0+

RXB3+

 

RXB1+

 

 

 

RXB1-

RXB3-

 

RXB1-

 

 

 

RXB1+

RXBCK+

 

RXB2+

 

 

 

RXB2-

RXBCK-

 

RXB2-

 

 

 

RXB2+

RXB2+

 

 

 

RXBCK+

 

 

 

RXBCK-

 

 

 

 

RXB2-

 

RXBCK-

 

 

 

RXBCK+

 

 

 

 

 

 

RXB1+

 

RXB3+

 

 

 

RXB3-

RXB1-

 

RXB3-

 

 

 

RXB3+

RXB0+

 

RXB4+

 

 

 

RXB4-

RXB0-

 

RXB4-

 

 

 

RXB4+

 

 

 

 

 

 

 

 

 

FOR FHD REVERSE(8bit)

Change in S7LR

9

 

 

RXACK+

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXACK-

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

RXA2+

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXA2-

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

RXA1+

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXA1-

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LVDS_SEL

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

RXA0+

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

 

RXA0-

+3.3V_Normal

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

21

 

 

 

 

 

 

 

 

R712

 

 

 

 

 

 

22

 

 

 

 

 

 

 

 

3.3K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

 

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R711

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

10K

 

PANEL_VCC

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HD

26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L701

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70-ohm

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLM18SG700TN1D

28

 

 

 

 

 

OPT

 

 

OPT

HD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

 

 

 

 

C701

 

 

C702

C703

 

 

 

 

 

 

10uF

 

 

1000pF

0.1uF

30

 

 

 

 

 

16V

 

 

50V

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

35

36

37

38

39

40

41

42

43

44

45

46

47

48

Manual background RXB2+

Manual background RXB2-

Manual background RXB1+

Manual background RXB1-

Manual background RXB0+

Manual background RXB0-

PANEL_VCC

 

 

FHD

 

 

L702

 

 

70-ohm

 

 

OPT

OPT

FHD

MIRROR

RXA4+

RXA4-

RXA3+

RXA3-

RXACK+

RXACK-

RXA2+

RXA2-

RXA1+

RXA1-

RXA0+

RXA0-

Pol-change

RXA4+

 

 

 

RXA4-

RXA4-

 

 

 

RXA4+

RXA0+

 

 

 

RXA0-

RXA0-

 

 

 

RXA0+

RXA1+

 

 

 

RXA1-

RXA1-

 

 

 

RXA1+

 

 

 

RXA2+

 

 

 

RXA2-

RXA2-

 

 

 

RXA2+

RXACK+

 

 

 

RXACK-

RXACK-

 

 

 

RXACK+

RXA3+

 

 

 

RXA3-

RXA3-

 

 

 

RXA3+

 

 

 

 

 

Shift

RXA0-

RXA0+

RXA1-

RXA1+

RXA2-

RXA2+

RXACK-

RXACK+

RXA3-

RXA3+

RXA4-

RXA4+

49

50

C700

C709

C710

10uF

1000pF

0.1uF

16V

50V

16V

RXB4+

RXB4-

RXB4+

RXB4-

RXB0-

RXB4-

RXB4+

RXB0+

51

52

RXB3+

RXB3-

RXBCK+

RXBCK-

RXB2+

RXB2-

RXB1+

RXB1-

RXB0+

RXB0-

RXB0+

 

RXB0-

 

RXB1-

RXB0-

 

RXB0+

 

RXB1+

RXB1+

 

RXB1-

 

RXB2-

RXB1-

 

RXB1+

 

RXB2+

RXB2+

 

RXB2-

 

RXBCK-

 

 

RXB2-

 

RXB2+

 

RXBCK+

 

 

RXBCK+

 

RXBCK-

 

RXB3-

RXBCK-

 

RXBCK+

 

RXB3+

RXB3+

 

RXB3-

 

RXB4-

RXB3-

 

RXB3+

 

RXB4+

THE Manual background 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 Manual background SYMBOL MARK OF THE SCHEMETIC.

GP4L_S7LR22011/11/14

LVDS_LARGE11

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

LGE Internal Use Only

Only for training and service purposes

 

Page 26 Page 28
Image 27
Page 26 Page 28
Contents http//aic.lgservice.com CHASSIS LD21BSERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALSPECIFICATION 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 rangeDVB-S QPSK 2 ~ 45Msymbol/s Symbolrate 4.0Msymbols/s to 7.2Msymbols/ssymbolrate DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s5. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PR5.2. RGB Input PC PCDVI 5.3. HDMI InputPC/DTV2. Designation ADJUSTMENT INSTRUCTIONBoot file Download 1. Application Range7. ADC Calibration 3.1. ADC Process3.3. EDID data 3.2. EDID Download4. Total Assembly line process 4.1. Adjustment Preparation3.4 Function Check 6. Model name & Serial number D/L 4.3. Outgoing condition Configuration6.1. Signal Table 5. HI-POT TestGP4LOW 7. MAC Address & CI+ key download6.3. Method & notice 7.1 MAC Address7.3. LAN PORT INSPECTIONPING TEST 7.2 LAN Inspectionח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲLG2111 A BLOCK DIAGRAMRear SideEXPLODED VIEW for SYSTEM EEPROM GP4LS7LR22011.12.01Copyright 2012 LG Electronics. Inc. All rights reserved to delete CI or gate forDDR3 Normal PowerVDDC Normal+1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormalIR/LED and control for normal models USB SIDE USB1DIODESUSB2DIODES HDMI FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RGB-PC / SPDIFTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONRS-232C COMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTIONFor Comsumer model, use 4PIN Wafer LVDS for large inch H5TQ1G63DFR-H9C S7LR2DIVXMS10GP4LS7LR22011/06/03 DDR25612 IC1201Serial Flash for SPI boot SFLASHMAINMACRONIXSFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG Headphone *Option HEADPHONE PHONEHEAD CI Region Option name of this page CISLOT because of Hong Kong10067972-0500LF H/W option ETHERNET GP4LS7LR22011/06/14 ETHERNET21ETHERNET TDSQ-G001D GP4RGLOBALTUNERBLOCKTU2602TU2603 TDSS-G101D TDSN-G301D TU2601DCDCGND and AGND are connected DVB-S2 LNB Part AllegroOptionLNB GP4LS7LR22011/11/02 DVBS27PSC008-01 SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 JK2801AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Content Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page Error symptomA2 Check Power Board 24v output A. Video errorLCD TV Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cableor 24V… voltages of PowerCheck various Board 3.5V,12V,20VBy using Digital signal level meter By using Diagnostics menu on OSD Menu→ Set up→ Support → Signal Test Signal strength Normal over 50%Signal Quality Normal over 50% → Set-Top-Box, Different maker TV etc Link Cable A8/ A9Check color by input -External Input COMPONENT -RGB ※ CheckCheck color condition by input -External Input -Component RGB External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Connect other external device and cableMeasure voltage of each output of Power B/D B. Power errorCheck Power LED Check Power On ‘”High”POWEROFFCPUABNORMAL Check Power Off ModeIf Power Off mode is not displayed Check Power B/D voltage POWEROFFABNORMAL1Check audio B+ C. Audio error24V of Power Check user menu Speaker offCheck audio B+ Voltage In case of External Input signal error Check and fix external deviceD. Function error 1. Remote controlR/C operating errorCheck & Repair Replace Main B/D Check input signalY Check technical Signal information input? - Fix information Recognition errorIdentify nose type E. NoiseF. Exterior defect
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