Required Test Equipment - LG 71PY1M-WA Service Manual

5-4. Adjustment Method of Sub HD Comp
Color Balance
(1) Input 1080i Pattern(Fig. 5) at the Component 1 input
terminal using PC Pattern Generator.
(2) Press ADJ KEY on the S R/C.
(3) Press Vol. + KEY and operate To SET.
(4) Auto-RGB OK means completed adjustment.
5-5. Adjustment of Main RGB Color Balance
(1) Input 1280*1024,60Hz Pattern(Fig. 5) at the RGB input
terminal using PC Pattern Generator.
(2) Press ADJ KEY on the S R/C.
(3) Press Vol. + KEY and operate To SET.
(4) Auto-RGB OK means completed adjustment.
5-6. Adjustment of Sub RGB Color Balance
(1) Input 1280*1024,60Hz Pattern(Fig. 5) at the RGB input
terminal using PC Pattern Generator.
(2) Press ADJ KEY on the S R/C.
(3) Press Vol. + KEY and operate To SET.
(4) Auto-RGB OK means completed adjustment.
6. DDC Data Input

6-1. Required Test Equipment

(1) A jig for adjusting PC, DDC (PC serial to D-sub
Connection equipment)
(2) S/W for writing DDC (EDID Data Write & Read)
(3) D-sub 15P Cable, DVI to HDMI Connector
(HDMI EDID Down load)
6-2. Setting of Device
(Fig. 6) Connection Diagram of DDC Download
6-3. Preparation for Adjustment
(1) Set devices as above and turn the PC and jig on.
(2) Put S/W for writing DDC (EDID data Write & Read) into
operation. (operated in DOS mode.)
ADJUSTMENT INSTRUCTIONS
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6-4. Data of EDID
(1) DDC data of Analog RGB.
(2) DDC data of Digital HDMI1, 2.
6-5. Sequence of Adjustment
(1) DDC Data Input for Analog-RGB
1) Put the set on the table and turn the power on.
2) Connect PC Serial to D-sub 15P Cable of jig for DDC
adjustment to RGB terminal (D-Sub 15Pin).
3) Operate S/W for DDC record and select DDC
data(71PY1M_RGB.ana) for Analog RGB in Model
Menu.
4) Operate EDID Write command.
5) Operate EDID Read command and check whether
Check Sum is 89(1page).
6) If Check Sum is not 89(1page) repeat 3) ~ 4).
7) If Check Sum is 89(1page), DDC data for Analog-RGB
input is completed.
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