32LG5600 (CHASSIS:LD85D) - LG TV Service Manual (repair manual). Page 10

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- 10 -
ADJUSTMENT INSTRUCTION
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 
D
/
E
(CH+/-) key, and
press 
G
(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 
D
/
E
(CH+/-) key, and press
A
(ENTER).
3) Select “Maker” by using 
D
/
E
(CH+/-) key, and change the
module maker and. applied module classification by using
F
/
G
(VOL+/-).
4) Select “Inch” by using 
D
/
E
(CH+/-) key, and change the
module according to the inch of model.
5) Select “Tool” by using 
D
/
E
(CH+/-) key, and change the
tool name according to the model. (Vitiaz3 : 1, Other : 0)
(Inch of model : 32”, 37”, 42”, Applied module under the
classification)
6) After changing the Tool option1, push the EXIT key.
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]
- 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.
<Fig. 1>
Model Name
32LG5500
Tool Option 1
35534
Maker
CMO
Inch
32
Tool
LG5500
Item
CMD1 CMD2
Data0
Remark
ADC adjust ADC Adjust
a
d
1
0
Data Read ADC Parameter
a
d
2
0
18Byte Transmission(Main diaplay)
(Main Display)
: Main Display Input & Resolution Data
ADC Parameter
a
d
2
1
18Byte Transmission (Sub Display)
(Sub Display)
: Main Display Input & Resolution Data
Digital Data
a
d
3
0
(Main Display)
Digital Data
a
d
3
1
(Sub Display)
Default ADC 
Parameter
Write
(Mean)
a
d
4
0
Adjustment 
a
d
9
9
Use to check ADC at Final assembly 
Confirmation
WB working process.
Adjustment Adjustment 
a
d
0
0
When transmitting adjustment Mode
Mode
Mode In
In command, adjustment command
is operated.
Adjustment a
d
9
0
Mode Out
A
Baud Rate : 115,200 bps
A
RS232C Host : PC
A
Echo : Nothing
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