DOWNLOAD LG 42PG20-UA (CHASSIS:PU84A) Service Manual ↓ Size: 11.75 MB | Pages: 49 in PDF or view online for FREE

- 9 -

Caution: Press the POWER ON KEY on R/C before W/B adjustment.

- Color Analyzer (CS-1000, CA-100+(CH.10), CA-210(CH.10))

[

Please adjust CA-100+ / CA-210 by CS-1000 before measuring

--> You should use Channel 10 which is Matrix compensated

(White, Red, Green, Blue revised) by CS-1000 and adjust
in accordance with White balance adjustment coordinate.

O

Color temperature standards according to CSM and Module 

O

Change target luminance and range of the Auto adjustment

W/B equipment.

O

White balance adjustment coordinate and color temperature

(On Automatic control )

Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push control R/C ADJ Key—> Enter the
mode of White-Balance, the pattern will come out.

(1) Adjust in the place where the influx of light like floodlight

around is blocked. (illumination is less than 10ux).

(2) In case of PDP: Measure and adjust after sticking the Color

Analyzer (CA-100+, CA210) to the side of the module. 

In case of LCD: Adhere closely  the Color Analyzer (
CA210 ) to the module less than 10cm distance, keep it
with the surface of the Module and Color Analyzer’s Prove
vertically.(80~100°).

(3) Aging time  

1) After aging start, keep the power on (no suspension of

power supply) and heat-run over 15 minutes.

2) In case of PDP, keep white pattern using inside pattern.
3) In case of LCD, using ’no signal’ or ‘full white pattern’ or

the others, check the back light on.

O

Auto Adjustment Map(RS-232C)

1) Press the ADJ KEY on R/C and enter EZ ASJUST

Select “3. Test Pattern” by using 

D

/

E

(CH +/-) and press

ENTER(

V

)

Select “White” by using 

F

/

G

(VOL +/-) and press

ENTER(

V

) and heat run over 15 minutes.

2) Zero Calibrate CA-100+ / CA-210, and when controlling,

stick the sensor to the center of PDP module surface.

3) Press the ADJ KEY on R/C and enter EZ ASJUST

Select “2. White Balance” and press 

G

(VOL +)

Set test-pattern on and display inside pattern. 

4) Control is carried out on three color temperatures, COOL,

MEDIUM, WARM. 
(Control is carried out three times)

<Temperature: COOL>

- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each gain is limited to 192

<Temperature: MEDIUM>

- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each gain is limited to 192

- 10 -

<Temperature: WARM>

- R-Cut / G-Cut / B-Cut is set to 64
- Control G-Gain and B-Gain.
- Each gain is limited to 192

(1) Connect D-sub Signal Cable to D-Sub Jack
(2) Input HDCP key with HDCP-key- in-program
(3) HDCP Key value is stored on EEPROM(AT24C512) which

is 80~A1 addresses of  0xA0~0xA2 page

(4) AC off/ on and on HDCP button of MSPG925 and confirm

whether picture is displayed or not of using MSPG925

(5) HDCP Key value is different among the sets. 

Press In-start key and select 3.Baud Rate menu. Check RS-
232C after changing Baud Rate 115200.

(1) Press ADJ R/C In-start key and select 0.AREA OPTION
(2) Select Country by using 

F

/

G

(VOL +/-) in accordance with

destination

- 11 -

- 12 -

Check  P701 All

Voltage Level (16V, 5V)

Check Power connector

OK ?

Replace Power board

Y

N

Y

Check IC706 #2 Pin

Voltage Level 2.6V

Replace IC706 &

Recheck

Y

N

Check X100 Clock

12MHz

Replace 100

Y

N

Replace IC105 Flash Memory

Check  Q706 Output

Voltage Level (5V)

Replace  Q801

N

Y