LG 52LG50FD, Руководство по обслуживанию

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4.4 Test of RS-232C control.
Press In-Start button of Service Remocon then set the
"4.Baud Rate" to 115200. Then check RS-232C control and
4.5 Selection of Country option.
Selection of country option is allowed only North American
model (Not allowed Korean model). It is selection of Country
about Rating and Time Zone
• Models : All models which use LA75A Chassis (See the first
page.)
• Press "In-Start" button of Service Remocon, then enter the
"Option" Menu with "PIP CH-" Button
• Select one of these three (USA, CANADA, MEXICO)
defends on its market using "Vol. +/-"butto
5. GND and ESD Testing
5.1 Prepare GND and ESD Testing.
• Check the connection between set and power cord
5.2 Operate GND and ESD auto-test
• Fully connected (Between set and power cord) set enter the
Auto-test sequence.
• Connect D-Jack AV jack test equipment.
• Turn on Auto-controller(GWS103-4)
• Start Auto GND test.
• If its result is NG, then notice with buzzer.
• If its result is OK, then automatically it turns to ESD Test.
• Operate ESD test
• If its result is NG, then notice with buzzer.
• If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.
5.3 Check Items.
• Test Voltage
- GND: 1.5KV/min at 100mA
- Signal: 3KV/min at 100mA
• Test time: just 1 second.
• Test point
- GND test: Test between Power cord GND and Signal
cable metal GND.
- ESD test: Test between Power cord GND and Live and
neutral.
• Leakage current: Set to 0.5mA(rms)
6. Default Service option
6.1 ADC-Set
• R-Gain adjustment Value (default 128)
• G-Gain adjustment Value (default 128)
• B-Gain adjustment Value (default 128)
• R-Offset adjustment Value (default 64 )
• G-Offset adjustment Value (default 64 )
• B-Offset adjustment Value (default 64 )
6.2 White balance. Value.
O
42LB7DF
Cool Mid Warm MAX
R Gain 184 192 192 192
G Gain 189 184 150 192
B Gain 192 161 84 192
R Cut 64 64 64 127
G Cut 64 64 64 127
B Cut 64 64 64 127
O
47LB7DF
Cool Mid Warm MAX
R Gain 192 192 192 192
G Gain 189 175 157 192
B Gain 153 127 57 192
R Cut 64 64 64 127
G Cut 64 64 64 127
B Cut 64 64 64 127
6.3 Temperature Threshold
• Threshold Down Low 20
• Threshold Up Low 23
• Threshold Down High 70
• Threshold Up High
75
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Only for training and service purposes
LGE Internal Use Only
C
2008