LG 55LM4600 (CHASSIS:LJ21C) Service Manual ▷ View online
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4.2. DDC EDID Write (RGB 128Byte)
■ Connect D-sub Signal Cable to D-Sub Jack.
■ Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.3. DDC EDID Write (HDMI 256Byte)
■ Connect HDMI Signal Cable to HDMI Jack.
■ Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
■ Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.4. EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■ Enter EDID D/L mode.
■ Enter “START” by pushing “OK” key.
※
Edid data and Model option download (RS232C)
NO
Item
CMD 1 CMD 2
Data 0
Enter
download
MODE
Download
‘Mode In’
A
A
0
0
When transfer
the ‘Mode In’,
Carry the com-
mand
Edid data
and Model
option
download
Download
A
E
00
10
Automatically
download
(The use of a
internal Data)
※
Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
=> Caution
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
●
EDID DATA
(1) HD EDID Data
CheckSum
Physical Address (0x9E)
HDMI 1
A4/5B
10
HDMI 2
A4/4B
20
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(2) FHD EDID Data(Deep Color support)
CheckSum
Physical Address (0x9E)
HDMI 1
43/DE
10
HDMI 2
43/CE
20
HDMI 3
43/BE
30
- HDMI
-RGB
(3) FHD EDID Data(Deep Color not support)
CheckSum
Physical Address (0x9E)
HDMI 1
43/25
10
HDMI 2
43/15
20
HDMI 3
43/05
30
- HDMI
-RGB
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(4) 3D EDID Data(Deep Color not support)
CheckSum
Physical Address (0x9E)
HDMI 1
43/23
10
HDMI 2
43/13
20
HDMI 3
43/03
30
- HDMI
-RGB
- Model List
HD(LAMP)
FHD(LAMP)
HD(LED)
FHD(LED)
FHD 3D(LED)
32CS460-SA
32CS560-SA 22LS3500-SA 42LS3400-SA 42LM3400-SB
32CS460-SZ
42CS560-SA 32LS3500-SA
32LS4600-SA 47LM4600-SB
42CS460-SA 32LS3400-SA 42LS4600-SA 55LM4600-SB
37LS3400-SA 47LS4600-SA
32LM3400-SB
42LM5800-SB
37LM3400-SB 50LS4000-SA 47LM5800-SB
4.5. MAC address D/L
Connect: USB port
Communication Prot connection
▪ Com 1,2,3,4 and 115200(Baudrate)
Mode check: Online Only
▪ Check the test process: DETECT -> MAC -> CI -> Widevine
▪. Play: START
▪. Result: Ready, Test, OK or NG
▪. Printer Out (MAC Address Label)
4.6. LAN Inspection
4.6.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
4.6.2. 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.
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4.7. LAN PORT INSPECTION(PING TEST)
4.7.1. 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
4.7.2. 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
4.8. Outgoing condition Configuration
■ When pressing IN-STOP key by SVC remocon, Red LED
are blinked alternatively. And then automatically turn off.
(Must not AC power OFF during blinking)
4.9 GND & Hi-pot test
Confirm whether is normal or not when between power
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second.
■ GND TEST = POWER CORD GND and SIGNAL CABLE
GND
■ Hi-pot TEST = POWER CORD GND and LIVE&NUETRAL
■ Test Process
(1) Check the POWER CABLE and SIGNAL CABLE insertion
condition.
(2) Connect the AV JACK Tester
(3) Controller(GWS103-4) on
(4) GND TEST(Auto)
- If Test is failed, Buzzer operate
- If Test is passed, execute next process(HI-pot test)
- Remove A/V CORD from A/V JACK BOX
(5) HI-POT test(Auto)
- If Test is failed, Buzzer operate
- If Test is passed, GOOD Lamp on and move to next
process automatically.
5. EYE-Q function check
Step1) Turn on TV.
Step2) Press “P-only” key, enter to power only mode and
escape the “P-only” Mode by pressing “Exit” key
Step3) Press “Tilt” key, entrance to Local Dimming mode.
Step4) At the Local Dimming mode, module Edge Backlight
moving Top to bottom Back light of module moving
Step5) confirm the Local Dimming mode
Step6) Press “Exit” key
6. 3D Function Test
(Pattern Generator MSHG-600, MSPG-6100 [SUPPORT
HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
1) Please input 3D test pattern like below (HDMI mode NO.
872 , pattern No.83)
2) When 3D OSD appear automatically , then select OK
button.
3) Don’t wear a 3D Glasses, Check the picture like below
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