LG RT-17LZ50, Service Manual

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1. Application Object
This instruction is for the application to the LCD TV.
2. Adjustment
2.1 Adjustment overview
The unit is set to automatically adjust using the
factory automation equipment. However when errors
occur, it should be adjusted manually.
2.2 Auto Gain/Offset adjustment
2.2.1 RF Mode adjustment
2.2.1.1 Adjustment preparation
■
Conduct Heat Run at the RF fog signals for more than
30 minutes.
2.2.1.2 Auto Gain/Offset adjustment
■
Press IN-START Key to convert to the adjustment
mode using the adjustment (SVC) remote controller,
and press VOL+ Key at the Auto Gain menu.
■ Once the adjustment is completed, press the Enter
Key to save and finish the adjustment.
2.2.2 Component Mode adjustment
2.2.2.1 Adjustment preparation
■ Conduct Heat Run at the RF fog signals for more than
30 minutes.
■
Connect the Pattern Generator to the Component
Jack (Y, Pb, Pr) of LCD TV.
2.2.2.2 Auto Gain/Offset adjustment
■
Convert the input mode to the component input.
■
Select Model: 228(480p Mode, Y 100%, Pb/Pr: 75%)
in Pattern Generator
Select PATTERN: 33(Color Bar Pattern signal)in
Pattern Generator
■ Press the IN-START Key by using the Remote
Conroller(SVC), after converting to Adjustment-Mode,
press VOL+Key consecutively in AutoGain Menu.
■
After adjustment complete, pressing enter key, stores
and completes process
2.2.3 PC Mode adjustment
2.2.3.1 Adjustment preparation
■ Conduct Heat Run at the RF fog signals for more than
30 minutes.
■ Connect the Pattern Generator to 15 Pin D-Sub Jack
of LCD TV.
2.2.3.2 Auto Gain/Offset adjustment
■
Convert the input mode to PC input.
■
Using the Pattern Generator (801GF, VG819) adjust
XGA (1024 X 768) for resolution and 16 Step Gray
signals for the pattern. Or adjust the 16 Step (11 Step)
Gray signals in accordance with VG819.
■ Convert the input mode to PC input and convert to
the adjustment mode using the adjustment (SVC)
remote controller and pressing the IN-START Key,
and then press VOL+ Key at the AutoGain menu.
■ Once the adjustment is completed, press the Enter
Key to save and finish the adjustment.
2.3 EDID (The Extended Display Identification Data) setting
■
Connect the 15 Pin D-Sub Cable to D-Sub Jack.
■
Set the input mode of Set to PC.
■
Connect the DDC automation equipment to write
DDC data.
2.3.1 EDID DATA
ADJUSTMENT INSTRUCTION
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 FF FF FF FF FF FF 00 1E 6D B6 43 01 01 01 01
10 04 0E 01 03 01 40 26 78 08 B1 DA A1 56 48 98 24
20 13 48 4B 2F CE 00 31 40 01 01 01 01 45 40 45 4F
30 61 40 81 80 01 01 4E 1F 00 90 51 00 1B 30 40 88
40 13 00 A2 0B 32 00 00 18 C3 1E 00 20 41 00 20 30
50 10 60 13 00 A2 0B 32 00 00 1E 00 00 00 FD 00 38
60 4B 1F 3D 0A 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 52 54 31 37 4C 5A 35 30 0A 20 20 20 20 00 5A