47LH40 (CHASSIS:LA92G) - LG TV Service Manual (repair manual). Page 16

5.1 ADC(Saturn5) adjustment
5.1.1 Overview
ADC adjustment is needed to find the optimum black level and
gain in Analog-to-Digital device and to compensate RGB
deviation.
5.1.2 Equipment & Condition
1) IN-START. remote
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution:
480i Comp1 (MSPG-925FA: model-209, pattern-65)
1080p Comp1 (MSPG-925FA: model-225 , pattern-65)
1024*768 RGB (MSPG-925FA: model-60 , pattern-65)
- Pattern Name: Horizontal 100% Color Bar Pattern
- Pattern Level: 0.7±0.1 Vp-p
- Image

3) Use the certificated cable. 

5.1.3 Method

5.1.3.1 ADC 480i Comp1

Set Component 480i mode and 100% Horizontal Color Bar
Pattern(HozTV31Bar), then set TV set to Component1 mode
and its screen to “NORMAL”

After get the signal, wait more a second and enter the “In

START” with press In-Start key of Service remocon. After then
select  “6. External ADC-> Comp 480i” with navigator button
and press “Enter”. It is automatically adjustment

You can see “ADC Component Success” message after

Adjustment success Error Messages: When its adjustment is
not correct, “ADC Component Fail”message displayed.
If its signal don’t out, then “Check Signal Status” message
displayed. These messages will be displayed just a second.

5.1.3.2 ADC 1080p Comp1

Set Component 1080P mode and 100% Horizontal Color Bar
Pattern(HozTV31 Bar), then set TV set to Component1 mode
and its screen to “NORMAL”

After get the signal, wait more a second and enter the “In

START” with press In-Start key of Service remocon. After then
select “6. External ADC-> Comp  1080P” with navigator button
and press “Enter”. It is automatically adjustment

You can see “ADC Component Success” message after

Adjustment success Error Messages: When its adjustment is
not correct, “ADC Component Fail” message displayed.
If its signal don’t out, then “Check Signal Status” message
displayed. These messages will be displayed just a second.

5.1.3.3 ADC 1024*768 RGB-PC

Set RGB-PC 1024*768 mode and 100% Horizontal Color Bar

Pattern(HozTV31Bar), then set TV set to Component1 mode
and its screen to “NORMAL”

After get the signal, wait more a second and enter the “IN

START” with press In-Start key of Service remocon. After then
select  “6. External ADC-> RGB” with navigator button and
press “Enter”. It is automatically adjustment

You can see “ADC Component Success” message after

Adjustment success Error Messages: When its adjustment is
not correct, “ADC Component Fail” message displayed.
If its signal don’t out, then “Check Signal Status” message
displayed. These messages will be displayed just a second.

5.2 White Balance adjustment

5.2.1 Overview
• W/B adjustment : Objective & How-it-works
- Objective: to reduce each Panel’s W/B deviation
- How-it-works: when R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.

5.2.2 Equipment

1) Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12

/LED Module:CH14)

2) Adjustment Computer (During auto adj., RS-232C

protocol is needed)

3) Adjustment R/C
4)Video Signal Generator MSPG-925F 720p/216Gray

(Model:217, Pattern:78)

-> Only when internal pattern is not available

•Color Analyzer Matrix should be calibrated using CS-1000

5.2.3 Equipment connection map

5.2.4 Adjustment Command (Protocol)

• Protocol

<Command Format>

- LEN: Number of Data Byte to be send
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]

- 16 -

C

2009

Color Analyzer

Computer

RS-232C

# Pattern Generator

* If TV internal pattern is used,not needed

Signal Source

Probe

RS-232C

RS-232C

START     6E    A     50    A

      LEN    A    03    A

      CMD    A    00    A

      VAL    A    CS    A

STOP