LG 42PW340 Service Manual page 11

* Attachment: White Balance adjustment coordination and color
temperature.
Using CS-1000 Equipment.
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- COOL : T=11000K, _uv=0.000, x=0.276 y=0.283
- MEDIUM : T=9300K, _uv=0.000, x=0.285 y=0.293
- WARM : T=6500K, _uv=0.000, x=0.313 y=0.329
Using CA-210 Equipment. (10 CH)
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- Contras value : 216 Gray
Color Test
temperature Equipment
COOL CA-210
MEDIUM CA-210
WARM CA-210
- Brighness spec.
Item Min Typ Max Unit Remark
White 49 60
average
brightness
Brightness -20
uniformity
6. 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
7. 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.
(1) Models: All models which PB82C Chassis (See the first
page.)
(2) Press "In-Start" button of Service Remocon, then enter the
"Option" Menu with "PIP CH-" Button
(3) Select one of these three (USA, CANADA, MEXICO)
defends on its market using "Vol. +/-"button.
Caution : Don't push The INSTOP KEY after completing the
function inspection
Caution : Inspection only PAL M / NTSC
Copyright ©2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Color Coordination
x
0.276±0.002 0.283±0.002
0.285±0.002 0.293±0.002
0.313±0.002 0.329±0.002
- cd/m - 100%Window White
Pattern
- 100IRE(255Gray)
- Picture: Vivid(Medium )
+20 % - 85IRE(216Gray) 100%
Window White Pattern
- Picture: Vivid(Medium)
8. GND and ESD Testing
8-1. Prepare GND and ESD Testing.
- Check the connection between set and power cord
8-2. Operate GND and ESD auto-test.
(1) Fully connected (Between set and power cord) set enter
the Auto-test sequence.
(2) Connect D-Jack AV jack test equipment.
(3) Turn on Auto-controller(GWS103-4)
y
(4) Start Auto GND test.
(5) If its result is NG, then notice with buzzer.
(6) If its result is OK, then automatically it turns to ESD Test.
(7) Operate ESD test
(8) If its result is NG, then notice with buzzer.
(9) If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.
8-3. Check Items.
(1) Test Voltage
GND: 1.5KV/min at 100mA
Signal: 3KV/min at 100mA
(2) Test time: just 1 second.
(3) Test point
- GND test: Test between Power cord GND and Signal
- ESD test: Test between Power cord GND and Live and
(4) Leakage current: Set to 0.5mA(rms)
9. POWER PCB Ass'y Voltage
Adjustment
(Va/Vs Voltage Adjustment)
(1)Test equipment : D.M.M 1EA
(2) Connection Diagram for Measuring : refer to fig.1
< fig.1 : 42 inch Power PCB Assy Voltage adjustment >
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cable metal GND.
neutral.
LGE Internal Use Only