Read LG 55LEX8-ZA (CHASSIS:LD03S) Service Manual online
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A
Standard color coordinate and temperature using CA-
210(CH 9)
210(CH 9)
4.4. Local Dimming Function Check
Step 1) Turn on TV.
Step 2) At the Local Dimming mode, module Edge Backlight
Step 2) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of IOP module moving.
Step 3) Confirm the Local Dimming mode.
Step 4) Press “exit” key
Step 4) Press “exit” key
4.5. V-COM Adjust(Only LGD(M+S) Module)
- Why need Vcom adjustment?
A
The Vcom (Common Voltage) is a Reference Voltage of
Liquid Crystal Driving.
-> Liquid Crystal need for Polarity Change with every frame.
Liquid Crystal Driving.
-> Liquid Crystal need for Polarity Change with every frame.
- Adjust sequence
A
Press the PIP key of the ADJ remote control. (This PIP
key is hot key to enter the VCOM adjusting mode)
key is hot key to enter the VCOM adjusting mode)
(Or After enter Service Mode by pushing “ADJ” key, then
Enter V-Com Adjust mode by pushing “
Enter V-Com Adjust mode by pushing “
G
” key at “10.V-Com”)
A
As pushing the right or the left button on the remote
control, And find the V-COM value Which is no or
minimized the Flicker.
control, And find the V-COM value Which is no or
minimized the Flicker.
(If there is no flicker at default value, Press the exit key
and finish the VCOM adjustment.)
and finish the VCOM adjustment.)
A
Push the OK key to store value. Then the message
“Saving OK” is pop.
“Saving OK” is pop.
A
Press the exit key to finish VCOM adjustment.
4.6. Magic Motion Remote control test
- Equipment : RF Remote control for test, IR-KEY-Code
Remote control for test
- You must confirm the battery power of RF-Remote control
before test(recommend that change the battery per every lot)
- Sequence (test)
1) if you select the ‘start key(Mute)’ on the controller, you
can pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select
the ‘OK’ Key on the controller
3) You must remove the pairing with the TV Set by select
‘Vol+(STOP) Key’ on the controller
4.7. 3D function test
(Pattern Generator MSHG-600, MSPG-6100 [Support HDMI 1.4])
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below
2) When 3D OSD appear automatically, then select OK button.
3) Don’t wear a 3D Glasses, Check the picture like below.
Mode
Color Coordination
Temp
∆UV
x
y
COOL
0.269 ± 0.002
0.273 ± 0.002 13000 K
0.0000
MEDIUM
0.285 ± 0.002
0.293 ± 0.002
9300 K
0.0000
WARM
0.313 ± 0.002
0.329 ± 0.002
6500 K
0.0000
Local Dimming Demo (Edge LED Model)
Local Dimming Demo (IOP & ALEF Model)
Row Li ne
Column Line
C
LC
C
ST
Pane l
S
Y
S
T
E
M
Gat
e
Driv
e
IC
So urce D r i v e I C
Circuit Block
Ti m i n g
Co nt r o ll e r
Co nt r o ll e r
Po w e r
Blo ck
Blo ck
V
COM
Ga mma
Re f e r e nce V o ltage
Re f e r e nce V o ltage
Gamm a Reference
Volta ge
Volta ge
Data (R ,G,B ) & C ont ro l s ignal
Con t rol si gnal
Data (R ,G,B ) &
Con t rol si gnal
Con t rol si gnal
In
te
te
rf
a
c
e
TFT
Po w e r I n p u t
Power Input
Da t a I n p u t
Da t a I n p u t
V
COM
Liquid
Crys tal
Crys tal
V
COM
[Visual Adjust and control the Voltage level]
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