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LG 32LD330C Service Manual page 11

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4.4.2.2. Method of Using Internal pattern
(1) Apply model
19/22/26/32LD330
(2) Process
1) Change the Input to RGB mode.
2) Press ADJ key on R/C for adjustment.
3) Enter Password number. Password is "0 0 0 0".
4) Select "0. ADC calibration : RGB" by using
and press ENTER(
5) ADC adjustment is executed automatically .
7) When ADC adjustment is finished, this OSD appear
Caution : No need to connect external input cable
Caution : Adjustment result is applied after SET Off/On
4.5. Check SW Version
(1) Method
1) Push In-start key on Adjust remote-controller.
2) SW Version check
Check "SW VER : V3.xx"
5. PCB assembly adjustment method
5.1. Input Area-Option
(1) Profile : Must be changed the Area option value because
being different of each Country's Language and
signal Condition.
(2) Equipment : adjustment remote control
(3) Adjustment method
- The input methods are same as other chassis.(Use IN-
START key on the Adjust Remocon.)
Refer to Job Expression of each main chassis assembly
(EBTxxxxxxxx) for Option value.
5.2. White Balance Adjustment
- Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
- Principle : To adjust the white balance without the saturation,
Fix the one of R/G/B gain to 192 (default data)
and decrease the others.
- Adjustment mode : Three modes - Cool / Medium / Warm
- Required Equipment
1) Remote controller for adjustment
2) Color Analyzer : CA100+ or CA-210 or same product
(should be used in the calibrated ch by CS-1000)
LCD TV : CH9
3) Auto W/B adjustment instrument(only for Auto adjustment)
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
D
A
).
5.2.1. Adjustment of White Balance
(For automatic adjustment)
- Connecting diagram of equipment for measuring
E
/
(CH +/-)
* LP91H Support RS-232C & I2C DDC Communication-White
Balance Mode.
(1) Enter the adjustment mode of DDC
- Set command delay time : 50ms
- Enter the DDC adjustment mode at the same time heat-
run mode when pushing the power on by power only key
- Maintain the DDC adjustment mode with same condition
of Heat-run => Maintain after AC off/on in status of Heat-
run pattern display)
(2) Release the DDC adjustment mode
- Release the adjust mode after AC off/on or std-by off/on
in status of finishing the Hear-run mode
- Release the Adjust mode when receiving the aging off
command(F3 00 00) from adjustment equipment.
- Need to transmit the aging off command to TV set after
finishing the adjustment.
- Check DDC adjust mode release by exit key and release
DDC adjust mode)
(3) Enter the adjust mode of white balance)
- Enter the white balance adjustment mode with aging
command (F3, 00, FF)
* Luminance min value is 150cd in the Cool/Medium/Warm
mode(For LCD)
5.2.2. Adjustment of White Balance
(for Manual adjustment)
(1) Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000
(2) Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
(3) For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run by pressing "POWER
ON" key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)
2) Push "Exit" key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key -> Enter "0000" (Password)
6) Select "3. W/B ADJUST"
7) Enter the W/B ADJUST Mode
8) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
D
/
9) Adjust R/ G/ B Gain using
10) Adjust three modes all (Cool/ Medium/ Warm) : Fix the
one of R/G/B gain and change the others.
11) When adjustment is completed, Enter "COPY ALL".
12) Exit adjustment mode using EXIT key on R/C.
- 11 -
E
(CH +/-) key on R/C.
F
G
/
(VOL +/-) key on R/C.
LGE Internal Use Only

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