LG 43LX560H, Service Manual

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- 10 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- RGB-FHD 8BIT (C/S : FF),
32/40/43/49LX560H, 32/40/43/49/55LX570H
- HDMI1 FHD 10BIT (C/S : E6C1), Only for 65LX570H-UA
- HDMI2 FHD 10BIT (C/S : E6B1), Only for 65LX570H-UA
- HDMI3 FHD 10BIT (C/S : E6A1), Only for 65LX570H-UA
- RGB-FHD 10BIT (C/S : FF), Only for 65LX570H-UA
5. Final Assembly Adjustment
5.1. White Balance Adjustment
5.1.1. Overview
5.1.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2) How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range.
1) Case : Cool Mode
- To adjust the white balance without the saturation, G
gain should be adjust at least 172 and change the
others (R,B Gain)
* When R or B gain is over 255, G gain can be adjust
below 172)
2) Case : Medium / Warm Mode
- To adjust the white balance without the saturation, Fix
the one of R/G/B gain to 192 (default data) and
decrease the others.
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 ºC
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don’t power off
5.1.1.2. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using
no signal or Full-white pattern.