LG 42LC7D Service Manual page 10

5. Video(uPD)-Set adjustment
5-1. Synopsis
This is a adjustment to reduce the color difference of video
signal Main/Sub Display.
5-2. Required Equipment
Service R/C, MSPG-925 Pattern Generator.
(Fig. 3) Adjust Pattern :100% 8 Color Bar Pattern
5-3. Adjustment
(1) How to adjustment the uPD PAL
1) Select AV1 as the input with 100% 8 Color Bar Pattern
in PAL mode and select 'AV1' on screen.
2) After receiving signal for at least 1 second, press the
ADJ Key on the Service R/C to enter the 'Ez - Adjust'
and select the '3. uPD PAL(Main&Sub)-Set'. Pressing
the Vol+ Key to adjust the uPD PAL.
3) When the adjustment is over, 'uPD64015 PAL Main
Adjustment OK' and 'uPD64015 PAL Sub Adjustment
OK' is displayed. If the adjustment has errors,
'uPD64015 PAL Main Error!' or 'uPD64015 PAL Main
Error!' is displayed.
4) Readjust after confirming the case Pattern or adjustment
condition where the adjustment had errors.
5) After adjustment is complete, exit the adjustment mode
by pressing the ADJ KEY.
(2) How to adjustment the uPD NTSC
1) Select AV1 as the input with 100% 8 Color Bar Pattern
in NTSC mode and select 'AV1' on screen.
2) After receiving signal for at least 1 second, press the
ADJ Key on the Service R/C to enter the 'Ez - Adjust'
and select the '4. uPD NTSC(Main&Sub)-Set'. Pressing
the Vol+ Key to adjust the uPD NTSC.
3) When the adjustment is over, 'uPD64015 NTSC Main
Adjustment OK' and 'uPD64015 NTSC Sub Adjustment
OK' is displayed. If the adjustment has errors,
'uPD64015 NTSC Main Error!' or 'uPD64015 NTSC
Main Error!' is displayed.
4) Readjust after confirming the case Pattern or adjustment
condition where the adjustment had errors.
5) After adjustment is complete, exit the adjustment mode
by pressing the ADJ KEY.
6. EDID
(The Extended Display Identification Data)
/DDC
(Display Data Channel)
This is the function that enables "Plug and Play".
6-1. Required Test Equipment
(1) PC, Jig for adjusting DDC.
(PC serial to D-sub Connection equipment)
(2) DVI to HDMI Connector.
Analog EDID
D-sub to D0sub
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HDMI EDID
DVI-D to HDMI or HDMI to HDMI