Read LG 32LH250C (CHASSIS:LD01X) Service Manual online
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)
(1) 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.
AC Power Adapter at 3.
2) Enter the Configuration Setup mode in pressing
Remocon keys. The method to enter Configuration
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK
2-1) Select 5V DC Power Outlet and change the setting
: No -> Yes. After that, check LED color in JIG.
2-2) After checking 5V DC Power Outlet, change the
setting : Yes -> No.
2-3) 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.
(2) 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
Remocon keys. The method to enter Configuration
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK
Setup mode : IN-START -> MENU -> Configuration
Setup -> OK
2-1) Select 5V DC Power Outlet and change the setting
: No -> Yes. After that, check LED color in JIG.
2-2) After checking 5V DC Power Outlet, change the
setting : Yes -> No.
2-3) 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 adjust 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 R/C 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 R/C POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10 lux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10 cm distance, keep it with the surface of the
Module and Color Analyzer’s prove vertically.(80° ~ 100°).
Module and Color Analyzer’s prove vertically.(80° ~ 100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
• Auto adjustment Map(RS-232C)
RS-232C COMMAND
[CMD
[CMD
ID DATA]
Wb
00
00
White Balance Start
Wb
00
ff
White Balance End
- 11 -
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)
(216gray,85IRE)
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
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
172
192
192
192
G Gain
jh
Jb
je
00
172
192
192
192
B Gain
ji
Jc
jf
00
192
192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
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