LG 42LS3450 (CHASSIS:LT21C) Service Manual ▷ View online
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5.3. HDMI EDID DATA : Refer to adjust specification
5.3.1. PC mode
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remarks
1.
640*350
31.468
70.085
25.174
DOS
2
720*400
31.468
70.08
28.321
DOS
3.
640*480
31.469
59.94
25.17
VESA
4
800*600
37.879
60.31
40.00
VESA
5.
1024*768
48.363
60.00
65.00
VESA(XGA)
6.
1360*768
47.72
59.8
84.75
WXGA
7.
1280*1024
63.981
60.02
108.00
SXGA
FHD Model
8.
1920*1080
67.5
60
148.5
WUXGA
FHD Model
5.3.2. DTV mode
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1.
720*480
31.469 / 31.5
59.94 / 60
27.00/27.03
SDTV 480P
2.
720*576
31.25
50
54
SDTV 576P
3.
1280*720
37.500
50
74.25
HDTV 720P
4.
1280*720
44.96 / 45
59.94 / 60
74.17/74.25
HDTV 720P
5.
1920*1080
33.72 / 33.75
59.94 / 60
74.17/74.25
HDTV 1080I
6.
1920*1080
28.125
50.00
74.25
HDTV 1080I
7.
1920*1080
26.97 / 27
23.97 / 24
74.17/74.25
HDTV 1080P
8.
1920*1080
33.716 / 33.75
29.976 / 30.00
74.25
HDTV 1080P
9.
1920*1080
56.250
50
148.5
HDTV 1080P
10.
1920*1080
67.43 / 67.5
59.94 / 60
148.35/148.50
HDTV 1080P
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ADJUSTMENT INSTRUCTION
1. Application
This spec sheet is applied all of the LCD TV with LT21A/B/C
chassis
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan whic al Unit: Product Specification Standard.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation: Above 5 Minutes (Heat Run).
Temperature : at 25 ºC±5 ºC
Relative humidity : 65 ± 10%
Input voltage : 220V, 60Hz
The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15°C.
In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above
15°C for 3 hours,.
[Caution]
When still image is displayed for a period of 20 minutes or
longer, there can some afterimage in the black level area.
(6) Adjustment equipments : Color Analyzer (CA-210 or
CA-110), DDC Adjustment Jig equipment, SVC remote
controller
(7) Push The “IN STOP KEY” – For memory initialization.
Case1 : Software version up
1) After downloading S/W by USB , TV set will reboot
automatically
2).Push “In-stop” key
3).Push “Power on” key
4).Function inspection
5).After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1). When TV set is entering on the assembly line, Push
“In-stop” key at first.
2).Push “Power on” key for turning it on.
=> If you push “Power on” key, TV set will recover channel
information by itself.
3).After function inspection, Push “In-stop” key.
3. Main PCB check process
* APC – After Manual-Insert, executing APC
* Boot file Download
(1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK”
message.
If “Error” is displayed, Check connection between
computer, jig, and set.
(3) Click “Read” tab, and then load download file (XXXX.bin)
by clicking “Read”
(4) Click “Connect” tab. If “Can’t ” is displayed, Check
connection between computer, jig, and set.
(5) Click “Auto” tab and set as below.
(6) Click “Run”.
(7) After downloading, check “OK” message.
(1)
filexxx.bin
(2)
(3)
Please Check the Speed
To use speed between
from 200KHz to 400KHz
To use speed between
from 200KHz to 400KHz
(4)
(5)
(6)
(7)...........OK
filexxx.bin
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* 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.
Model
Module
Tool
option1
Tool
option2
Tool
option3
Tool
option4
Tool
option5
47LM5800-DB
LGD
32871
2525
9499
45992
7170
42LM5800-DB
LGD
32870
2525
9499
45992
7170
32LM5800-DB
LGD
100
35293
9499
45992
5154
55LM4600-DB
LGD
32857
2525
9499
45992
7170
47LM4600-DB
LGD
32855
2525
9499
45992
7170
42LM3400-DB
LGD
438
494
9371
45992
32
32LM3400-DB
LGD
436
494
9371
45992
32
32LS5600-DA
LGD
340
35293
9499
13224
5154
47LS4600-DA
LGD
33095
2525
9499
13224
7170
42LS4600-DA
LGD
33094
2525
9499
13224
7170
42LS4600-DA
KMS
47430
2525
9499
13224
7186
42LS4600-DA
AUO
4422
2525
9499
13224
5170
32LS4600-DA
LGD
324
35293
9499
13224
5154
32LS4600-DA
KMS
14660
2525
9499
13224
5170
32LS4600-DA
AUO
4420
2525
9499
13224
5170
32LS3500-DA
LGD
292
494
9499
13224
32
32LS3500-DA
AUO
4388
494
9499
13224
48
32LS3500-DA
KMS
14628
494
9499
13224
48
42LS3400-DA
LGD
422
494
9371
13224
32
32LS3400-DA
LGD
420
494
9371
13224
32
32LS3450-DA
KMS
14868
494
9371
13224
16
42LS3450-DA Pola
2580
494
9371
13224
16
42CS560-DD
AUO
4134
494
9243
13224
608
42CS560-DD
LGD
38
1006
9243
13224
577
32CS560-DD
LGD
36
494
9243
13224
609
42CS460-DA
LGD
22
1006
9243
13224
705
42CS460-DA
AUO
4118
494
9243
13224
736
32CS460-DA
LGD
20
494
9243
13224
736
32CS460-DA
AUO
4116
494
9243
13224
736
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3.1. ADC Process
3.1.1. ADC
■ Enter Service Mode by pushing “ADJ” key,
Calibration”
=> Caution : Using ‘power on’ button of the Adjustment R/C,
power on TV.
※
ADC Calibration Protocol (RS232C/USB)
NO
Item
CMD 1 CMD 2 Data 0
Enter
Adjust MODE
Adjust
‘Mode In’
A
A
0
0 When transfer the
‘Mode In’,
Carry the command.
ADC adjust
ADC
Adjust
A
D
1
0 Automatically adjust-
ment
(The use of a inter-
nal pattern)
※
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 (1024*768)]
▪ ad 00 10 [Adjust 1024*768 RGB]
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment R/C.
3.2. Function Check
3.2.1. 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 controller.
3.2.2. MAC Address
3.2.2.1. Equipment & Condition
▪ Play file: Serial.exe
▪ MAC Address edit
▪ Input Start / End MAC address
3.2.2.2 Download method
3.2.2.2.1. Communication Prot connection
Connect:
Connection : PCBA (USB Port) -> USB to Serial Adapter
(UC-232A) -> RS-232C cable -> PC(RS-232C port)
3.2.2.2.2. MAC Address Download
▪ Com 1,2,3,4 and 115200(Baudrate)
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