LG 71PY1M-WA Service Manual page 12

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(2) DDC Data input for Digital-HDMI1, 2
1) Connect PC Serial to DVI to HDMI Cable of jig for DDC
adjustment to HDMI terminal (HDMI Jack).
2) Operate S/W for DDC record and select DDC data
(71PY1M_HDMI.dvi) for Digital-HDMI in model menu.
3) Operate EDID Write command.
4) Operate EDID Read command and check whether
Check sum is 7C(1page), 75(2page).
5) If Check sum is not 7C(1page), 75(2page), repeat 3) ~ 4).
6) If Check sum is 7C(1page), DE(2page), DDC data for
Digital-HDMI input is completed.
7. Adjustment of White Balance
7-1. Required Equipment
Color Analyzer (CA-100 or same product)
Pattern Generator(VG-828)
7-2. Connection Diagram of Equipment for
Measuring
7-3. Adjustment of White Balance
Operate the Zero-calibration of the CA-100, then stick
O
sensor to PDP module surface when you adjust.
(1) Select white pattern of heat-run mode by pressing power
key on the Service Remote Control (S R/C) then allow to
heat run at least 15 minutes.
(2) Supply 216 Level 50% Window signal to RGB input using
Pattern Generator.
(3) Press ADJ KEY four time on the S R/C. (White Balance)
Select the adjustment mode(Red Gain or Blue Gain) using
D
E
,
key on the S R/C and press VOL +, - keys to adjust
until color coordination matches below.
X; 0.276±0.002, Y; 0.282 ± 0.002
Color Temperature; 11,000°K ± 500°K
(ACC : Cool mode)
(4) Exit adjustment mode using
ADJUSTMENT INSTRUCTIONS
(Fig. 7)
A
Key.
(Fig. 8)
- 12 -

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