Read LG 26LU30D (CHASSIS:LD01B) Service Manual online
- Auto Download
• Enter ‘EZ ADJUST’ mode by pushing “ADJ” key,
• Select and enter ‘10.EDID D/L’ mode.
• Select ‘START’ by pushing “OK” key.
* Edid data and Model option download (RS232)
- Manual Download
* Caution
1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing
4) Download HDMI1, HDMI2, separately because HDMI1 is
different from HDMI2
- 12 -
Item
CMD1 CMD2 Data0
Download
A
A
0 0 When transfer the ‘Mode In’,
Download
A
E
00 10 Automatically Download
(The use of a internal pattern)
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
‘Mode in’
Carry the command.
4.5. V-COM Adjust(Only LGD(M+S) Module)
- Why need Vcom adjustment?
The Vcom (Common Voltage) is a Reference Voltage of
Liquid Crystal Driving.
-> Liquid Crystal need for Polarity Change with every frame.
- Adjust sequence(Method 1)
· Push ‘PIP’ key.
If there is flicker at default value, turn down or turn up until
no flicker, push ‘OK’ key to store.
Push ‘Exit’ key to exit.
· Enter ‘EZ ADJUST’mode by pushing ‘ADJ’ key.
Select and enter ‘12.V-Com’ mode.
· If there is flicker at default value, turn down or turn up until
no flicker, push ‘OK’ key to store.
· Push ‘Exit’ key to exit.
4.6. Outgoing condition Configuration
-Push ‘IN STOP’ key, then in-stop processing will start.
If processing is cmplete,TV will turn off automatically.
(Must not AC power OFF during blinking processing)
Confirm whether is normal or not when between power
board’s ac block and GND is impacted on 1.5 kV(dc) or 2.2
kV(dc) for one second.
- Adjust sequence(Method 2)
·
V-Com
V-COM
◀
425
▶
Press (⊙) to save.
Row Lin e
Colu mn Lin e
C
LC
C
ST
Pan e l
S
Y
S
T
E
Y
S
T
E
M
Source Drive IC
Gate Drive IC
Circuit Block
Tim in g
Co nt ro lle r
Co nt ro lle r
Po w er
Block
V
COM
G a mma
Re fe re nce V o ltage
Re fe re nce V o ltage
Gamm
a R eference
Vo ltag e
Da ta(R ,G ,B) & Co n trol signal
Con tro l sig n al
D ata(R ,G,B ) &
Con tro l sig n al
Con tro l sig n al
I
n
te
r
fa
c
e
TF T
Po w e r In p u t
Power Input
Da ta In p u t
Da ta In p u t
V
CO M
Liquid
Cr ys tal
Cr ys tal
V
COM
·
·
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance
8. 10 Point WB
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. V-Com
▶
13. P-Gamma
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