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LGE Internal Use Only

Only for training and service purposes

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LED TV with

LB35A chassis.

2. Designation

(1) Because this is not a hot chassis, it is not necessary to

use an isolation transformer. However, the use of isolation

transformer will help protect test instrument.

(2) Adjustment must be done in the correct order.

(3) The adjustment must be performed in the circumstance of

25 °C ± 5 °C of temperature and 65 % ± 10 % of relative

humidity if there is no specific designation.

(4) The input voltage of the receiver must keep 100-220 V,

50/60Hz.

(5) The receiver must be operated for over 5 minutes prior to

the adjustment when module is in the circumstance of

above 15 °C.

► In case of keeping module is in the circumstance of 0

°C, it should be placed in the circumstance of above 15

°C for 2 hours.

► In case of keeping module is in the circumstance of

below -20 °C, it should be placed in the circumstance of

above 15 °C for 3 hours.

* Caution

When a still image is displayed for 20 minutes or longer

(especially where W/B scale is strong. Digital pattern 13ch

and/or Cross hatch pattern 09ch), there can some

afterimage in the black level area.

3. MAIN PCBA Adjustments

3.1. ADC Calibration

3.1.1. Using D/L Jig

- An ADC calibration is automatically adjusted from DFT-Jig

- If it needs to adjust manually, refer to appendix.

* ADC Calibration Protocol (RS232)

Adjust Sequence

▪ aa 00 00 [Enter Adjust Mode]

▪ xb 00 40 [Component1 Input (480i)]

▪ ad 00 10 [Adjust 480i Comp1]

▪ aa 00 90 End Adjust mode

3.2. EDID Download

▪ HD MODEL

▪ 8BIT FHD MODEL

a. White Balance Adjustment

Item

CMD 1 CMD 2 Data 0

Enter Adjust

MODE

Adjust

‘Mode In’

When transfer the ‘Mode In’,

Carry the command.

ADC adjust

ADC

Adjust

Automatically adjustment

(The use of a internal pattern)

** HDMI 1 : 256Bytes

00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 17 01 03 80 A0 5A 78 0A F3 30 A4 54 46 96 26
20 0F 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 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 BC 77 21 00 00 1C 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 01

ⓐ

80 02 03 28 F1 4F 84 07 01 16 02 03 11 12 13 14 05
90 20 22 1F 10 26 11 07 50 09 7F 07 83 01 00 00 68

A0 03 0C 00 10 00 80 1E 00 01 1D 00 80 51 D0 1C 20
B0 40 80 35 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0
C0 2D 10 10 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14
D0 51 F0 16 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D
E0 80 18 71 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

ⓐ

** HDMI 1 : 256Bytes

00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 17 01 03 80 A0 5A 78 0A D9 B0 A3 57 49 9C 25
20 11 49 4B 21 08 00 01 01 45 40 61 40 01 01 81 80
30 01 01 D1 C0 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 08 44 21 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 BC 88 21 00 00 1C 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 01

ⓐ

80 02 03 28 F1 4F 90 07 01 16 02 03 11 12 13 04 14
90 05 20 22 1F 26 11 07 50 09 7F 07 83 01 00 00 68

ⓐ

EDID C/S data

FHD (8Bit)

HDMI

Check sum

(Hex)

Block 0

Block 1

44(HDMI1)

44 (HDMI1)