Read LG 42LD320H (CHASSIS:LB0AW) Service Manual online
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4. Total Assembly line process
4.1. Check Commercial features
4.1.1. External SPK Out and Volume control
(1) Connect JIG for inspection to phone jack on TV as above.
(2) Press Vol. control button up/down in turns and check the
(2) Press Vol. control button up/down in turns and check the
waveform of Oscilloscope.
4.1.2. IR Out and DC Power Outlet(5 V / 12 V)
* In using Commercial Check Jig
(1) Connect JIG for inspection to RS-232C port on TV as
below. DC 5V Power must be supplied to JIG through AC
Power Adapter at 3.
Power Adapter at 3.
(2) Enter the Configuration Setup mode in pressing remote
control keys. The method to enter Configuration Setup
mode: IN-START -> MENU -> Configuration Setup -> OK
mode: IN-START -> MENU -> Configuration Setup -> OK
1) Select 5V DC Power Outlet and change the setting :
No -> Yes. After that, check LED color in JIG.
2) After checking 5V DC Power Outlet, change the setting
: Yes -> No.
3) Please check 12V DC Power Outlet in the same
procedure.
3) Check the LED for IR-Out inspection.
* Please refer to the criteria of Judgement.
* In using Mini check Jig
(1) Connect JIG for inspection to RS-232C port on TV as below.
(2) Enter the Configuration Setup mode in pressing remote
(2) Enter the Configuration Setup mode in pressing remote
control keys. The method to enter Configuration Setup
mode: IN-START -> MENU -> Configuration Setup -> OK
mode: IN-START -> MENU -> Configuration Setup -> OK
1) Select 5V DC Power Outlet and change the setting :
No -> Yes. After that, check LED color in JIG.
2) After checking 5V DC Power Outlet, change the setting
: Yes -> No.
3) Please check 12V DC Power Outlet in the same
procedure.
3) Check the LED for IR-Out inspection.
* Please refer to the criteria of Judgement.
4.1.3. LED Clock
Check front LED Clock in Power on mode.
4.2. Adjustment Preparation
· W/B Equipment condition
CA210 : CH 9, Test signal : Inner pattern (85IRE)
· Above 5 minutes H/run in the inner pattern. (“power on” key
of adjustment remote control)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
Button of Vol. control
Waveform of Oscilloscope
UP(+)
DOWN(-)
Recommended Input Signal
: RF, 1 KHz, Sine wave
: RF, 1 KHz, Sine wave
Cool 13,000
K
X=0.269(±0.002)
Y=0.273(±0.002)
<Test Signal>
Medium
9,300
K
X=0.285(±0.002)
Inner pattern
Y=0.293(±0.002)
(216 gray,85 IRE)
Warm
6,500
K
X=0.313(±0.002)
Y=0.329(±0.002)
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
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