32LH40, 32LH41 (CHASSIS:LA92B) - LG TV Service Manual (repair manual). Page 11

(4) Updating is staring.

(5) Updating completed, then the TV will restart automatically.

(6) If your TV is turned on, check your updated version and

Tool option. (explain the Tool option, next stage)

* If downloading version is more high than your TV have,

TV can lost all channel data. In this case, you have to
channel recover. if all channel data is cleared, you didn’t
have a DTV/ATV test on production line.

* After downloading, have to adjust TOOL OPTION again.

1) Push "IN-START" key in service remote controller.
2) Select "Tool Option 1" and Push “OK” button.
3) Punch in the number. (Each model has their number.)

4) Completed selecting Tool option

• Adjust 480i Component1 adjustment
• Adjust 1080p Component1 adjustment
• Adjust 1024*768 RGB adjustment
• EDID/DDC download

Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Start Menu 1. Adjust
Check.

• EDID/DDC download
• White Balance adjustment
• RS-232C functionality check
• Factory Option setting per destination
• Ship-out mode setting (In-Stop)

• Ship-out mode
• Service Option Default
• USB Download(S/W Update, Option)

(1) Overview

ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.

(2) Equipment & Condition

(3) Adjustment

1) Method

• Using RS-232, adjust items listed in 3.1 in the order

shown in “4.1.3.3”.

2) Adjustment protocol

3) Adjustment order

• ad 00 00 [Enter ADC adjustment mode]
• ad 00 10 [Adjust 480i Comp1/1080i Comp1/1024*768

RGB]

• ad 00 90 [End adjustment mode]

- 11 -

Mode

Tool Option1

Tool Option2

Tool Option3

Tool Option4

32LH40-UA

16641

3400

35748

33792

Protocol Command

Set 

ack

Source Input 

kb 00 04 

b 00 OK04x (Adjust 480i/1080p Comp1 )

Change  

kb 00 06 

b 00 OK06x (Adjust 1024*768 RGB)

Begin adj. 

ad 00 10

Return  

OKx (Success)

adj. result

NGx (Fail)

Read 

(main) 

(main input )

adj. data

ad0020 

0000000000000000000000007c007b006dx

(sub ) 

(Sub input)

ad 00 21

000000070000000000000000007c00830077x

Confirm adj. 

ad 00 99 

NG 03 00x (Fail)

NG 03 01x Fail)

NG 03 02x (Fail )

OK 03 03x (Success)

End adj. 

ad 00 90 

d 00 OK90x