DOWNLOAD LG 42LV355T-ZC (CHASSIS:LD11U) Service Manual ↓ Size: 8.8 MB | Pages: 89 in PDF or view online for FREE

Model
42LV355T-ZC (CHASSIS:LD11U)
Pages
89
Size
8.8 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lv355t-zc-chassis-ld11u.pdf
Date
PREV: LG 42LV355H-ZA (CHASSIS:LD0AZ) Service Manual

LG 42LV355T-ZC (CHASSIS:LD11U) Service Manual ▷ View online

5.2. EYE-Q function check
Step 1) Turn on TV
Step 2) Press EYE key of Adjustment remote control.
Step 3) Cover the Eye Q II sensor on the front of the using
your hand and wait for 6 seconds
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data(Sensor data, Back light)”. If after 6 seconds, R/G
/B value is not lower than 10, replace Eye Q II sensor.
Step 5) Remove your hand from the Eye Q II sensor and wait
for 6 seconds.
Step 6) Confirm that “ok” pop up. 
If change is not seen, replace Eye Q II sensor.
5.3. 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 Service main assembly, EDID have to be downloaded to
Insert Process in advance.
5.4. 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 Service main assembly, EDID have to be downloaded to
Insert Process in advance.
5.5. 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.
* Caution : Never connect HDMI & D-sub Cable when EDID
download
* 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.
- 13 -
EZ ADJUT
0. Tool Option1  
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. V-Com
EDID D/L
HDMI1
HDMI2
HDMI3
RGB
NG
NG
NG
NG
Reset
Start
EDID D/L
Reset
Start
HDMI1
HDMI2
HDMI3
RGB
OK
OK
OK
OK
Item CMD1 CMD2 Data0
Download
A
A
0
0 When transfer the ‘Mode In’,
‘Mode In’
Carry the command.
Download
A
E
00 10 Automatically Download
(The use of a internal pattern)
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
1) FHD RGB EDID data
2) FHD HDMI EDID data
* Detail EDID Options are below.
ⓐ Product ID
ⓑ Serial No: Controlled on production line.
ⓒ Month, Year: Week : ‘01’ -> ‘01’
Year : ‘2011’ -> ‘15’ fix
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
5.6. Outgoing condition Configuration
When pressing “IN-STOP” key by Service remote control, Red
LED are blinked alternatively. And then Automatically turn off.
(Must not AC power OFF during blinking)
5.7. Hi-pot Test
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.
6. Model name & Serial number D/L
• Press “Power on” key of service remote control.
(Baud rate : 115200 bps)
• Connect RS232 Signal Cable to RS-232 Jack.
• Write Serial number by use RS-232.
• Must check the serial number at the INSTART menu.
6.1. Signal TABLE
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20ms
6.2. Command Set
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write : Model Name and Serial Number write in
EEPROM,.
6.3. Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.
- 14 -
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
10
c
01
03
68
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
81
80
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
A0
5A
00
00
00
1E
01
1D
00
72
51
D0
1E
20
50
6E
28
55
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
d
70
d
00
e
80
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
90
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
A0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
B0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
C0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
D0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
E0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
F0
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
FF
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
10
c
01
03
80
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
71
4F
81
80
01
01
01
01
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
A0
5A
00
00
00
1E
1B
21
50
A0
51
00
1E
30
50
48
88
35
00
A0
5A
00
00
00
1C
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
d
70
d
01
e
80
02
03
26
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
90
22
15
01
26
15
07
50
09
57
07
f
A0
f
E3
05
03
01
01
1D
80
18
71
1C
16
20
58
2C
B0
25
00
A0
5A
00
00
00
9E
01
1D
00
72
51
D0
1E
20
C0
6E
28
55
00
A0
5A
00
00
00
1E
02
3A
80
18
71
38
D0
2D
40
58
2C
45
00
A0
5A
00
00
00
1E
01
1D
00
BC
E0
52
D0
1E
20
B8
28
55
40
A0
5A
00
00
00
1E
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
e
Model Name
HEX
EDID Table
DDC Function
ALL Model
0001
01 00
Analog/Digital
MODEL
MODEL NAME(HEX)
all
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT
MODEL NAME(HEX)
HDMI1 67030C001000B82D
HDMI2 67030C002000B82D
HDMI3 67030C003000B82D
CMD 
LENGTH
ADH 
ADL 
DATA_1
. . . 
Data_n 
CS 
DELAY 
No.
Adjust mode
CMD(hex)
LENGTH(hex)
Description
1
EEPROM WRITE
A0h
84h+n
n-bytes Write(n=1~16)
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or Service man, sometimes
model name or serial number is initialized.(Not always)
There is impossible to download by bar code scan, so It need
Manual download.
1) Press the ‘Instart’ key of Adjustment remote control.
2) Go to the menu ‘6.Model Number D/L’ like below photo.
3) Input the Factory model name(ex 37LV4500-ZC) or Serial
number like photo.
4) Check the model name Instart menu. -> Factory name
displayed. (ex 37LV4500-ZC)
5) Check the Diagnostics. (DTV country only) -> Please press
Customer Support at the menu.
- 15 -
- 16 -
BLOCK DIAGRAM
USB_DN/DP
HP_L/R OUT
C-TMDQ[0:15]
DDR3 MEMORY
FOR SYSTEM
B-TMDQ[0:15]
PCMA_[0:7]
CI_TS_DATA[0:7]
FE_TS_DATA[0:7]
NAND FLASH
MEMORY
CMOS IC
CVBS/RGB
LVDS
CI
CLOT
COMP_Y/Pb/Pr
DSUB_RGD,H/V/SYNC
A-TMDQ[0:15]
COMP2_R/L
TU_CVBS/SIF
PCMA_A[0:7]
CEC
TMDS[0:7]
TUNER
DDR3 MEMORY
FOR FRC
IF P/N MSTAR
CVBS
AV_R/L
LVDS[0:9]
IF_AGC
COMP2_R/L
S7_TX/RX
MAIN IC
CI_ADDR[0:7]
DDR3 MEMORY
FOR SYSTEM
CEC
SPK
AUDIO
AMP
PC_R/L
SUB ASSY
NEC_SDA/SCL
NEC_TX/RX
I2S
AMP_SDA/SCL
TMDS[0:7]
MAX3232
MICOM
IR
KEY1/2
S/T_SDA/SCL
LED_R/BUZZ/ LED_B/LG_LOGO
SPEAKER_L/R
SPDIF_OUT
LAN
Page of 89
Display

Click on the first or last page to see other 42LV355T-ZC (CHASSIS:LD11U) service manuals if exist.

RANDOM: