DOWNLOAD LG 32LD650 (CHASSIS:LJ03B) Service Manual ↓ Size: 4.85 MB | Pages: 52 in PDF or view online for FREE

Model
32LD650 (CHASSIS:LJ03B)
Pages
52
Size
4.85 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ld650-chassis-lj03b.pdf
Date

LG 32LD650 (CHASSIS:LJ03B) Service Manual ▷ View online

- 13 -
4.1.4 LAN inspection solution  
•  LAN Port connection with PCB 
•  Network setting at MENU Mode of TV 
•  Setting automatic IP 
•  Setting state confirmation 
- If automatic setting is finished, you confirm IP and MAC
Address. 
4.1.5 LAN Port Inspection (PING Test)  
4.1.5.1 Equipment setting  
1) Play the LAN Port Test PROGRAM. 
2) Input IP set up for an inspection to Test Program. 
*IP Number : 12.12.2.2 
4.1.6 LAN Port Inspection (PING Test) 
1) Play the LAN Port Test Program. 
2) connect each other LAN Port Jack. 
3) Play Test (F9) button and confirm OK Message. 
4) remove LAN CABLE 
4.2. Using RS-232C 
Adjust 3 items at 3.1 PCB assembly adjustments “adjustment
sequence” one after the order. 
A
Adjustment protocol 
See ADC Adjustment RS232C Protocol_Ver1.0 
A
Necessary items before Adjustment items 
• Pattern Generator : (MSPG-925FA) 
•Adjust 480i Comp1 (MSPG-925FA:model :209 , pattern
:65) – Comp1 Mode 
• Adjust 1080p Comp1 (MSPG-925FA:model :225 ,
pattern :65) – Comp1 Mode 
• Adjust RGB (MSPG-925FA:model :225 , Pattern :65) –
RGB-PC Mode 
* If you want more information then see the below
Adjustment method (Factory Adjustment) 
A
Adjustment sequence  
• aa 00 00: Enter the ADC Adjustment mode. 
• xb 00 40: Change the mode to Component1 (No actions) 
• ad 00 10: Adjust 480i Comp   
• ad 00 10: Adjust 1080p Comp  
• xb 00 60: Change to RGB-PC mode(No action)  
• ad 00 10: Adjust 1080p RGB 
• xb 00 90: Endo of Adjustmennt 
- 14 -
5 Factory Adjustment 
5.1 Manual Adjust Component 480i/1080p
RGB 1080p 
A
Summary : Adjustment component 480i/1080i and RGB
1080p is Gain and Black level setting at Analog to Digital
converter, and compensate the RGB deviation
A
Using instrument   
• Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator (It can output 480i/1080i
horizontal 100% color bar pattern signal, and its output
level must setting 0.7V±0.1V p-p correctly)  
<Pic.4 Adjustment pattern : 480i / 1080p 60Hz Pattern > 
You must make it sure its resolution and pattern cause
every instrument can have different setting 
Adjustment method 480i Comp1, Adjust 1080p Comp1/RGB
(Factory adjustment) 
• ADC 480i Component1 adjustment 
- Check connection of Component1  
- MSPG-925FA ->  Model: 209, Pattern 65 
• Set Component 480i mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”  
• ADC 1080p Component1 / RGB adjustment 
- Check connection both of Component1 and RGB 
- MSPG-925FA ->  Model: 225, Pattern 65 
• Set Component 1080p mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”  
• After get each the signal, wait more a second and enter
the  “IN-START” with press IN-START key of Service
remocon. After then select “7. External ADC” with
navigator button and press “Enter”.   
• After Then Press key of Service remocon “Right
Arrow(VOL+)”  
• You can see “ADC Component1 Success”  
• Component1 1080p, RGB 1080p Adjust is same method.  
• Component 1080p Adjustment in Component1 input
mode  
• RGB 1080p adjustment in RGB input mode 
• If you success RGB 1080p Adjust. You can see “ADC
RGB-DTV Success” 
5.2 EDID (The Extended Display
Identification Data) / DDC (Display Data
Channel) Download.  
A
Summary 
• It is established in VESA, for communication between PC
and Monitor without order from user for building user
condition. It helps to make easily use realize “Plug and
Play” function.  
• For EDID data write, we use DDC2B protocol. 
A
Auto Download 
• After enter Service Mode by pushing “ADJ” key, 
• Enter EDID D/L mode. 
• Enter “START” by pushing “OK” key.  
=> Caution : - Never connect HDMI & D-sub Cable when
the user downloading . 
- Use the proper cables below for EDID
Writing. 
§ Edid data and Model option download (RS232) 
- 15 -
5.2.1 Manual Download  
A
Write HDMI EDID data  
• Using instruments 
- Jig. (PC Serial to D-Sub connection) for PC, DDC
adjustment.  
- S/W for DDC recording (EDID data write and read) 
- D-sub jack 
- Additional HDMI cable connection Jig. 
• Preparing and setting.  
- Set instruments and Jig. Like pic.5), then turn on PC and
Jig.  
- Operate DDC write S/W (EDID write & read) 
- It will operate in the DOS mode. 
Pic.3) For write EDID data, setting Jig and another instruments. 
• EDID data for LJ03B/D/E/R Chassis (Model name = LG TV) 
- HDMI-1 EDID table (0x04, 0x5A) 
- HDMI-2 EDID table (0x04, 0x4A) 
- HDMI-3 EDID table (0x04, 0x3A) 
- HDMI-4 EDID table (0x04, 0x2A) 
- Analog (RGB) EDID table (0x1D) 
See Working Guide if you want more information about EDID
communication. 
PC
VSC
B/D
- 16 -
5.3 Adjustment Color Temperature (White
balance)  
A
Using Instruments 
• Color Analyzer: CA-210 (CH 9)  
- Using LCD color temperature, Color Analyzer (CA-210)
must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.  
• Auto-adjustment Equipment (It needs when Auto-
adjustment  – It is availed communicate with RS-232C :
Baud rate: 115200)  
• Video Signal Generator MSPG-925F 720p, 216Gray
(Model: 217, Pattern 78) 
A
Connection Diagram (Auto Adjustment)  
• Using Inner Pattern 
• Using HDMI input 
<Pic.5 Connection Diagram for Adjustment White balance> 
A
White Balance Adjustment   
If you can’t adjust with inner pattern, then you can adjust it
using HDMI pattern. You can select option at “Ez-Adjust
Menu  – 7. White Balance” there items “NONE, INNER,
HDMI”. It is normally setting at inner basically. If you can’t
adjust using inner pattern you can select HDMI item, and
you can adjust. 
In manual Adjust case, if you press ADJ button of service
remocon, and enter “Ez-Adjust Menu – 7. White Balance”,
then automatically inner pattern operates. (In case of
“Inner” originally “Test-Pattern. On” will be selected in The
“Test-Pattern. On/Off”.  
• Connect all cables and equipments like Pic.5) 
• Set Baud Rate of RS-232C to 115200. It may set 115200
orignally. 
• Connect RS-232C cable to set 
• Connect HDMI cable to set 
A
RS-232C Command (Commonly apply)     
• “wb 00 00”: Start Auto-adjustment of white balance. 
• “wb 00 10”: Start Gain Adjustment (Inner pattern)  
• “jb 00 c0” :  
• …
• “wb 00 1f”: End of Adjustment 
* If it needs, offset adjustment (wb 00 20-start, wb 00 2f-
end) 
• “wb 00 ff”: End of white balance adjustment (inner pattern
disappear) 
C A -100+
C O L O R
A N A L Y Z E R
T Y P E ; C A -100+
F u l l W h i t e P at t er n
R S-232C
 
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