22LH250C (CHASSIS:LD01X) - LG TV Service Manual (repair manual). Page 11

(1) Connect JIG for inspection to phone jack on TV as above.
(2) Press Vol. control button up/down in turns and check the

waveform of Oscilloscope.

(1) In using Commercial Check Jig

1) Connect JIG for inspection to RS-232C port on TV as

below. DC 5V Power must be supplied to JIG through
AC Power Adapter at 3. 

2) Enter the Configuration Setup mode in pressing

Remocon keys. The method to enter Configuration
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK

2-1) Select 5V DC Power Outlet and change the setting

: No -> Yes. After that, check LED color in JIG.

2-2) After checking 5V DC Power Outlet, change the

setting : Yes -> No.

2-3) Please check 12V DC Power Outlet in the same

procedure. 

3) Check the LED for IR-Out inspection.

* Please refer to the criteria of Judgement.

(2) In using Mini check Jig

1) Connect JIG for inspection to RS-232C port on TV as

below. 

2) Enter the Configuration Setup mode in pressing

Remocon keys. The method to enter Configuration
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK

2-1) Select 5V DC Power Outlet and change the setting

: No -> Yes. After that, check LED color in JIG.

2-2) After checking 5V DC Power Outlet, change the

setting : Yes -> No.

2-3) Please check 12V DC Power Outlet in the same

procedure. 

3) Check the LED for IR-Out inspection.

* Please refer to the criteria of Judgement.

(1) Press the number key ‘333’
(2) Channel Banner will appear at the top of left-side

The name of channel is completed, you can see the
following picture clearly.

Check front LED Clock in Power on mode.

· W/B Equipment condition

CA210 : CH 9, Test signal : Inner pattern (85IRE)

· Above 5 minutes H/run in the inner pattern. (“power on” key

of adjust remote control)

* Connecting picture of the measuring instrument

(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER ON ->
Enter the mode of White-Balance, the pattern will come out.

* Auto-control interface and directions

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

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

2) Adhere closely the Color Analyzer (CA210) to the module

less than 10 cm distance, keep it with the surface of the
Module and Color Analyzer’s prove vertically.(80° ~ 100°).

3) Aging time

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

power supply) and heat-run over 5 minutes.

- Using ‘no signal’ or ‘full white pattern’ or the others,

check the back light on.

• Auto adjustment Map(RS-232C)

RS-232C COMMAND
[CMD

ID DATA]

Wb

00

00

White Balance Start

Wb

00

ff

White Balance End

- 11 -

Recommended Input Signal
: RF, 1 KHz, Sine wave

Cool 13,000

K

X=0.285(±0.002)

Y=0.293(±0.002)

<Test Signal>

Medium

9,300

K

X=0.295(±0.002)

Inner pattern

Y=0.305(±0.002)

(216gray,85IRE)

Warm

6,500

K

X=0.313(±0.002)

Y=0.329(±0.002)

 

Full White Pattern

COLOR
ANALYZER
TYPE: CA-210

RS-232C Communication

CA-210