LG 26LH1DC1-UB Service Manual page 12

(10) System All Reset :
It reboots itself after initializing not only the general NVRAM
Parameter but also Service Parameter.
(White Balance, YPbPr offset/gain, RGB offset/Gain etc.)
*** Therefore do not run System All Reset unless it is a special case.
If this item must be initialized, write down the adjusted value after
factory delivery of Panel brightness, Auto Picture, White Balance,
YPbPr offset/gain and RGB offset/Gain on paper then execute the
initialization.
Then after the execution, use the remote controller to re-enter the
written value without separate adjustment, and you can realize
the same TV quality.
(11) Audio Delay
Adjust the Audio Delay. The Group can be classified into 3 types.
- DTV Group
- ATV/CVBS/YC Group
- COMP/PC/HDMI Group
(12) AI Control :
This is the function to set ON/OFF to support the AI automatically in
the panel that supports the DCR(Dynamic Contrast Ratio) function.
*** The Default value is OFF and must be maintained at OFF without
separate notification.
(13) Last Power Save :
This is the item to set whether to save the Last Power.
(14) Panel Monitoring :
This is the item to set whether to use Panel Abnormal Detection
Monitoring.
(15) Panel ID :
This is the item to set the Panel ID.
You can set the Display ID, Panel Company ID and Model ID of the
Panel currently connected.
The Display ID is fixed to LCD and the Panel Company ID toggles
among LG, SAMSUNG and AUO.
When the Panel Company ID is decided, you must set the Model IT
accordingly.
(16) Commercial Flag :
This is the item to set whether to communicate with the Network
Board or operate Stand alone.
This must always be set to ON unless it is a special testing
environment.
(17) Panel Brightness :
This is the item to adjust the brightness of the panel.
The default set value is 70 and can be adjusted to between 1 and 100.
When the value is set to 1, it is the lowest value (20%) and when set to
100, it is the highest brightness (100%).
The PWM signal sent out from MICOM is converted to DC voltage to
adjust the brightness of the panel.
As a reference, the DC voltage value sent out from the board
according to the set value is as follows.
Set Point
1
10
20
30
40
50
60
70
80
90
100
Copyright©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Output DC Voltage(V)
0.210
0.345
0.520
0.715
0.945
1.215
1.530
1.850
2.200
2.630
3.170
-12-
Under the condition of HDMI 1080i Input, Video mode : Standard,
Color temperature : Normal.
Set the generator signal source to Grays11/1080i30/HDMI (H8C).
Change to the HDMI input mode, observe the TV display screen.
Adjust the PANEL BRIGHT item of the TV SERVICE MENU, to make
the measured Bright Value of the CA-210 should be 25(cd/m
2nd bars from Left side of the GRAYS11 pattern on the TV display
screen.
If you couldn't get the suitable Bright Value 25(cd/m
AUTO BRIGHT of the AUTO PICTURE item on the Service menu.
(18) Epg Mode :
This is the item to set the condition of Epg.
It Toggles among Mini, Full and None.
(19) SW Upgrade :
This is the item to Upgrade the Software using the RF Stream.
Send the stream with the Upgrade program to the desired channel
using the generator and setup as follows.
- RF Mode (Air or Cable) selection : For the remote controller,
press left/right to select 0(Air) or 1(Cable).
- RF Freq : Select the channel number with the stream.
- FE Mode(VSB/64QAM/256QAM) : Use the left/right button of the
remote controller to select 0(VSB), 1(64QAM) or 2(256QAM).
But you must not set 64QAM/256QAM for Air.
After completing the all the settings, select upgrade start to start the
upgrade.
When all the upgrade is normally completed, the system will
automatically reboot. Even if it fails, you must turn the power off and
then turn it back on to return to its normal condition.
(20) EXIT
Exit the Service Menu.
2 ) in the
2 ), adjust the
LGE Internal Use Only