DOWNLOAD LG 42LV3400-DA (CHASSIS:LT01U) Service Manual ↓ Size: 9.79 MB | Pages: 64 in PDF or view online for FREE

Model
42LV3400-DA (CHASSIS:LT01U)
Pages
64
Size
9.79 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lv3400-da-chassis-lt01u.pdf
Date

LG 42LV3400-DA (CHASSIS:LT01U) Service Manual ▷ View online

* USB DOWNLOAD(*.epk file download)
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
- If your downloaded program version in USB Stick is Low,
it didn’t work. But your downloaded version is High, USB
data is automatically detecting
(3) Show the message “Copying files from memory”
(4) Updating is staring.
(5) After updating is complete, The TV will restart automatically.
(6) If  TV  turns on, check your updated version and Tool
option. (refer to the next page about tool option)
* If downloading version is higher than your TV have, TV
can lost all channel data. In this case, you have to
channel recover. If all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
* After downloading, have to adjust Tool Option again.
1. Push "IN-START" key in service remote controller.
2. Select "Tool Option 1" and Push “OK” button.
3. Punch in the number. (Each model has their number.)
4. Completed selecting Tool option.
3.1. ADC Process
G
” key at “6. ADC
Calibration”
* Caution: Using ‘power on’ button of the Adj. R/C, power on TV.
* ADC Calibration Protocol (RS232)
- Adjust Sequence
• aa 00 00
[Enter Adjust Mode]
• xb 00 40
[Component1 Input (480i)]
• ad 00 10
[Adjust 480i Comp1]
• xb 00 60 
[RGB Input (1024x768)]
• ad 00 10
[Adjust 1024x768 RGB]
• aa 00 90
[End Adjust Mode]
* Required equipment : Adjustment R/C
3.2. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI 
6) PC Audio In 
* Display and sound check is executed by remote control.
- 17 -
Model 
Tool option1  Tool option2 Tool option3  Tool option4 Tool option5
42LV3500-DA_CMI
26468
19478
55332
26892
41
37LV3500-DA_AUO
22376
19478
55332
26892
41
32LV3500-DA_CMI
18276
19478
55332
26892
41
32LV2500-DA_CMI
18212
19478
55332
26892
41
26LV2500-DA_LGD
14112
8714
55332
26892
41
47LK550-DC_LGD
34529
19478
55300
26892
8224
42LK450-DA_LGD
26241
18966
55300
26892
8224
37LK450-DA_LGD
22145
18966
55300
26892
8224
32LK450-DA_AUO
18056
18966
55300
26892
33
 
 
 
i
TV Software Upgrade
Upgrading...
Do not plug off!
63%
 
 
 
 
i
TV Software Upgrade
Upgrading COMPLETED
The TV will restart after    seconds.
100%
 
 
i
TV Software Upgrade
Copying files from memory
Do not remove the memory card from the pc
Do not plug off!
No.
Item
CMD1
CMD2
Data0
Enter Adjust Mode 
0
0
2 ADC 
Adjust
0
0
Model 
Tool option1  Tool option2 Tool option3  Tool option4 Tool option5
32LK330-DB_IPS
18000
18966
51204
26892
33
26LK330-DB_AUO
13896
18966
51204
26892
33
22LK330-DB_CMI
9796
18966
51204
26892
33
55LV3500-DA_LGD
46944
19478
55332
26892
8224
4. Total Assembly line process
4.1. Adjustment Preparation
· W/B Equipment condition
CA210 : CH 9, Test signal : Inner pattern (85IRE)
· Above 5 minutes H/run in the inner pattern. (“power on” key
of adjust remote control)
4.1.1. Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER ON -> Enter
the mode of White-Balance, the pattern will come out
4.1.2. Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10ux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically.(80~100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check
the back light on.
4.1.3. Auto adjustment Map (RS-232C)
**Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range of
Module)
4.2. Manual W/B process using adj. R/C
• After enter Service Mode by pushing “ADJ” key,
• Enter White Balance by pushing “
G
”key at “7.White Balance”
* After done all adjustments, Press “In-start” button and compare
Tool option and Area option
value with its BOM, if it is correctly same then unplug the AC
cable.
If it is not same, then correct it same with BOM and unplug AC
cable.
For correct it to the model’s module from factory JIG model.
* Push  The  “IN STOP KEY” after completing the function
inspection.
- 18 -
Cool 13,000k
ºK
X=0.269(±0.002)
All
Y=0.273(±0.002)
<Test Signal>
Medium 9,300k
ºK
X=0.285(±0.002)
Inner pattern
Y=0.293(±0.002)
(216gray,85IRE)
Warm
6,500k
ºK
X=0.313(±0.002)
Y=0.329(±0.002)
Cool 9,300k
ºK
X=0.285(±0.002)
Only 22LD350
Y=0.293(±0.002)
<Test Signal>
Medium 8,000k
ºK
X=0.295(±0.002)
Inner pattern
Y=0.305(±0.002)
(216gray,85IRE)
Warm
6,500k
ºK
X=0.313(±0.002)
Y=0.329(±0.002)
 
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg 
Ja 
jd 
00
172 
192 
192
255
G Gain 
jh 
Jb
je 
00
172 
192 
192
255
B Gain 
ji 
Jc 
jf
00
192 
192 
172 
255
R Cut 
64 
64 
64 
128
G Cut 
64 
64 
64 
128
B Cut 
64 
64 
64 
128
(3) FHD HDMI 2 EDID Data (CS : E289)
(4) FHD HDMI 3 EDID Data (CS : E279)
(5) HD RGB EDID Data (CS : CD)
(6) HD HDMI 1 EDID Data (CS : B465)
(7) HD HDMI 2 EDID Data (CS : B455)
(8) HD HDMI 3 EDID Data (CS : B445)
(9) ASCII Code
4.7. 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)
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.
- 19 -
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