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1. Application Range
This spec. sheet is applied to all of the LD85D chassis
manufactured at LG TV Plant all over the world.
2. Specification.
1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer.
However, the use of isolation transformer will help to
protect test instruments
2) Adjustment must be done in the correct sequence.
3) The adjustment must be performed at 25±5°C temperature
and 65±10% relative humidity if there is no specified
designation.
4) The input voltage of the receiver must be kept between
100-220V~, 50/60Hz.
5) Before adjustment, execute Heat-Run for 5 minutes at RF
no signal.
3. Channel Memory
1) Press ADJ key in Adjust remote control.
2) Select "Channel Recover" by using
G
press
(VOL+).
3) When Channel Recover is completed, set will be turned off
and LED light go to stand-by mode.
* Before AV ADC Calibration, should be executed the "Tool option 1"
4. Select method of Tool option 1
1) Press ADJ Key in the Adjust remote control.
2) Select "Tool option 1" by using
A
(ENTER).
3) Select "Maker" by using
module maker and. applied module classification by using
F
G
/
(VOL+/-).
4) Select "Inch" by using
module according to the inch of model.
5) Select "Tool" by using
tool name according to the model. (Vitiaz3 : 1, Other : 0)
(Inch of model : 32", 37", 42", Applied module under the
classification)
Model Name
Tool Option 1
32LG5500
35534
6) After changing the Tool option1, push the EXIT key.
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
D
/
E
(CH+/-) key, and
D
E
/
(CH+/-) key, and press
D
/
E
(CH+/-) key, and change the
D
/
E
(CH+/-) key, and change the
D
E
/
(CH+/-) key, and change the
Maker
Inch
CMO
32
LG5500
5. Substrate ADC Calibration
* Press EXIT Key to delete Installation Guide before PCB
assembly adjustment. And then press FRONT-AV Key on
Adjustment remote controller.
(RS-232C Host change : G-Probe => PC. Input change : AV3)
5.1. ADC Calibration Mode
(1) Adjustment of RF/AV
Model : 202 / Pattern : 65
(2) Adjustment of Component.
Model : 215/ Pattern : 65
(3) Adjustment of RGB
Model : 3/ Pattern : 65
5.2. ADC Calibration Protocol [RS-232C]
Item
ADC adjust ADC Adjust
Data Read ADC Parameter
(Main Display)
ADC Parameter
(Sub Display)
Digital Data
(Main Display)
Digital Data
(Sub Display)
Default
ADC Parameter
Write
(Mean)
Adjustment
Confirmation
Adjustment Adjustment
Mode
Mode In
Tool
Adjustment
Mode Out
Baud Rate : 115,200 bps
A
RS232C Host : PC
A
Echo : Nothing
A
- If ADC calibration don't adjust at PCB assembly, ADC
calibration adjust at Final assembly line.
- Don't press the INSTOP KEY after completing the function
inspection.
- 10 -
<Fig. 1>
CMD1 CMD2
Data0
a
d
1
0
a
d
2
0
18Byte Transmission(Main diaplay)
: Main Display Input & Resolution Data
a
d
2
1
18Byte Transmission (Sub Display)
: Main Display Input & Resolution Data
a
d
3
0
a
d
3
1
a
d
4
0
a
d
9
9
Use to check ADC at Final assembly
WB working process.
a
d
0
0
When transmitting adjustment Mode
In command, adjustment command
is operated.
a
d
9
0
LGE Internal Use Only
Remark
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