LG Electronics 32LT360C-ZA V-COM AdjustOnly LGDM+S Module, Outgoing condition Configuration

Page 12
4.5. V-COM Adjust(Only LGD(M+S) Module)

(1) HD RGB EDID data

 

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

00

00

 

FF

FF

FF

FF

FF

FF

 

00

1E

6D

 

a

 

 

b

 

10

 

c

01

03

68

A0

5A

 

78

0A

EE

91

 

A3

54

4C

 

99

26

20

0F

 

50

54

A1

08

00

71

 

40

61

40

45

 

40

31

40

 

01

01

30

01

 

01

01

01

01

01

1B

 

21

50

A0

51

 

00

1E

30

 

48

88

40

35

 

00

40

84

00

00

00

 

1C

01

1D

00

 

72

51

D0

 

1E

20

50

6E

 

28

55

00

A0

5A

00

 

00

00

1E

00

 

00

00

FD

 

00

3A

60

3E

 

1E

53

10

00

0A

20

 

20

20

20

20

 

20

 

 

d

 

70

 

 

 

 

 

 

 

 

d

 

 

 

 

 

 

 

 

00

e

80

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

90

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

A0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

B0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

C0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

D0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

E0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

F0

FF

 

FF

FF

FF

FF

FF

FF

 

FF

FF

FF

FF

 

FF

FF

FF

 

FF

FF

(2) HD HDMI EDID data

 

 

0

1

2

3

 

4

5

6

7

8

9

A

B

C

D

E

F

 

00

00

 

FF

FF

FF

FF

FF

FF

 

00

 

1E

6D

 

 

a

 

 

 

b

 

 

10

 

c

01

03

 

80

A0

5A

 

78

 

0A

EE

 

91

 

A3

54

4C

 

99

 

26

 

20

0F

 

50

54

A1

08

00

31

 

40

 

45

40

 

61

 

40

71

40

 

01

 

01

 

30

01

 

01

01

01

 

01

01

66

 

21

 

50

B0

 

51

 

00

1B

30

 

40

 

70

 

40

36

 

00

40

84

 

63

00

00

 

1E

 

64

19

 

00

 

40

41

00

 

26

 

30

 

50

18

 

88

03

06

 

40

84

63

 

00

 

00

18

 

00

 

00

00

FD

 

00

 

3A

 

60

3E

 

1E

53

10

 

00

0A

20

 

20

 

20

20

 

20

 

20

 

 

d

 

 

70

 

 

 

 

 

 

 

 

 

 

d

 

 

 

 

 

 

 

 

 

 

 

01

 

e

 

80

02

 

03

22

F1

4E

10

1F

 

04

 

93

05

 

14

 

03

02

12

 

20

 

21

 

90

22

 

15

01

26

 

15

07

50

 

09

 

57

07

 

 

 

 

 

 

f

 

 

 

 

 

A0

80

 

1E

01

1D

80

18

71

 

1C

 

16

20

 

58

 

2C

25

00

 

A0

 

5A

 

B0

00

 

00

00

9E

01

1D

00

 

72

 

51

D0

 

1E

 

20

6E

28

 

55

 

00

 

C0

20

 

C2

31

00

 

00

1E

8C

 

0A

 

D0

8A

 

20

 

E0

2D

10

 

10

 

3E

 

D0

96

 

00

A0

5A

00

00

00

 

18

 

02

3A

 

80

 

18

71

38

 

2D

 

40

 

E0

58

 

2C

45

00

 

A0

5A

00

 

00

 

00

1E

 

00

 

00

00

00

 

00

 

00

 

F0

00

 

00

00

00

 

00

00

00

 

00

 

00

00

 

00

 

00

00

00

 

00

 

e

 

(3) Detail EDID Options are below

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a. Product ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODEL NAME

 

HEX

 

 

 

EDID Table

 

 

 

DDC Function

 

 

HD/FHD Model

 

0001

 

 

 

 

01 00

 

 

 

 

Analog/Digital

 

 

 

b. Serial No: Controlled on production line.

 

 

 

 

 

 

 

 

c. Month, Year: Controlled on production line:

 

 

 

 

 

 

 

 

ex) Week : '01' -> '01'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year : '2012' -> '16' fix

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

d. Model Name(Hex):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cf) TV set’s model name in EDID data is below.

 

 

 

 

 

Model name

 

 

 

 

 

 

 

MODEL NAME(HEX)

 

 

 

 

 

 

 

 

 

 

 

LG TV

00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

e. Checksum: Changeable by total EDID data.

EDID C/S data

HD

 

HDMI

RGB

 

 

 

Block 0

A4

A5

Check sum

 

5B (HDMI1)

 

(Hex)

Block 1

4B (HDMI2)

-

 

 

3B (HDMI3)

 

f. Vendor Specific(HDMI)

Input

Model name(HEX)

HDMI1

67030C001000

HDMI2

67030C002000

HDMI3

67030C003000

4.5. V-COM Adjust(Only LGD(M+S) Module)

-Why need Vcom adjustment?

The Vcom(Common Voltage) is a Reference Voltage of Liquid Crystal Driving. → Liquid Crystal need for Polarity Change with every frame.

Circuit Block

 

 

Data(R,G,B) &

 

 

Gamma

 

 

Control signal

 

 

Reference Voltage

S

 

 

Timing

Data(R,G,B) & Control signal

Gamma Reference

 

 

 

 

 

Interface

Controller

 

 

 

 

Control signal

Voltage

Y

Data Input

 

 

 

 

 

S

 

 

 

Source Drive IC

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

Gate

Column Line

Panel

E

Power Input

Power

 

VCOM

M

 

Block

 

Drive

CLC

CST

 

 

 

 

 

 

 

 

Liquid

 

 

 

VCOM

IC

 

Crystal

 

 

 

 

Row Line TFT

 

VCOM

-Adjust sequence

Press the PIP key of the ADJ remote controller. (This PIP key is hot key to enter the VCOM adjusting mode)

(Or After enter Service Mode by pushing “ADJ” key, then Enter V-Com Adjust mode by pushing “►” key at “12. V-Com”)

As pushing the right or the left button on the remote controller, And find the V-COM value Which is no or minimized the Flicker. (If there is no flicker at default value, Press the exit key and finish the VCOM adjustment.)

Push the OK key to store value. Then the message “Saving OK” is pop.

Press the exit key to finish VCOM adjustment.

4.6. Outgoing condition Configuration

When pressing IN-STOP key by SVC remocon, Red LED are blinked alternatively. And then automatically turn off. (Must not AC power OFF during blinking)

4.7. Hi-pot Test

Confirm whether is normal or not when between power board's ac block and GND is impacted on 1.5 kV(dc) or 2.2 kV(dc) for one second

Copyright ©

LG Electronics. Inc. All rights reserved.

- 12 -

LGE Internal Use Only

Only for training and service purposes

 

 

Image 12
Contents SERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALhttp//aic.lgservice.com http//eic.lgservice.comOnly for training and service purposes CopyrightLG Electronics. Inc. All rights reserved LGE Internal Use OnlySAFETY PRECAUTIONS General GuidanceBefore returning the receiver to the customer Leakage Current Cold CheckAntenna Cold CheckSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement RemovalSPECIFICATION 4. Model General Specification1. Application range 3. Test method5. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PR5.2. RGB Input PC 5.3. HDMI InputPC/DTVPCDVI ADJUSTMENT INSTRUCTION 1. Application Range2. Designation 3. Main PCB check process4. Total Assembly line process 4.1. Adjustment Preparation3.1. ADC Process 3.2. Function CheckManual W/B process using adjust Remote control 4.4. EDID data4.2. DDC EDID Write RGB 128Byte 4.3 DDC EDID Write HDMI 256Byte4.5. V-COM AdjustOnly LGDM+S Module 4.6. Outgoing condition ConfigurationWhy need Vcom adjustment? Adjust sequence5. Model name & Serial number D/L 5.1. Signal Table5.2. Comand Set 5.3. Method & notice6. CI+ Key Download method 6.1. Download ProcedureCI+ Key Value TROUBLE SHOOTING 1. Check the booting Voltage2. Digital TV Video 3. Analog TV Video 4. AV Video5. RGB Video 6. HDMI Video7. Audio of All iput 8. TV Audio9. AV Audio 10. RGB AudioDIAGRAM BLOCKand service purposes RearEXPLODED VIEW GP3S7LR 20110511Copyright 2012 LG Electronics. Inc. All rights reserved CVBS COMPFROM LIPS & POWER B/D PowerDET+1.5VDDR +2.5V/+1.8VCONTROL IR & LED IR OUTUSBDIODES GP2R20101023 USBOCPDIODED803 AVRL161A1R1NT S7LRDIVXMS10 IC1201IC101 LGE2112-T8 IC1202 H5TQ1G63DFR-H9CP4RGLOBALTUNERBLOCK GP3S7LRTUNERL IC501 NTP-7500L20110324 NTP7400Rear AV F u l l S c a r t SIDE COMPONENT PHONE JACKREARJACK Page 12V EXT PowerOut DC DC CONVERTER +12VONLY PSU For External powerRS232C LVDS for large inch MIRROR Pol - changeMIRROR Pol - changeSFLASH IC1401MX25L8006EM2I-12G IC1401-*1EXTSPEAKERAMP SPEAKER OUT JACKCI Region Option name of this page CI SLOT because of Hong KongPCMCI