LG 42LN549C / 42LP360H (CHASSIS:LB3AC) Service Manual ▷ View online
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SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
This specification is applied to the LED TV used LB3AC
chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage
: Standard input voltage (AC 100-240 V~, 50/60 Hz)
* Standard Voltage of each products is marked by models.
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
5) The receiver must be operated for about 5 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC
4. Model General Specification
No.
Item
Specification
Remarks
1
Market
(PAL/DVB Market)
Only Analog for A-ASIA
2.
Broadcasting system
1) PAL/SECAM-B/G/D/K
2) PAL-I
3) NTSC-M
4) DVB-T
PAL
3
Channel Storage
ATV - 135 EA, DTV - 1000 EA
4
Receiving system
Analog : Upper Heterodyne
Digital : COFDM(DVB-T)
► DVB-T
- Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32
- Modulation : Code Rate
QPSK : 1/2, 2/3, 3/4, 5/6, 7/8
16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
5
Video(Composite) Input PAL, SECAM, NTSC
4 System : PAL, SECAM, NTSC, PAL60
6
RGB Input(1EA)
RGB-PC
Analog(D-SUB 15PIN)
7
Component Input
Y/Cb/Cr, Y/Pb/Pr
Spec out
8
HDMI Input
HDMI1-DTV/DVI
HDMI2-DTV/DV
HDMI3-DTV/DVI
Common Port in AV & PC input.
9
Audio Input (1EA)
RGB/DVI Audio
AV
10
SDPIF out
SPDIF out
11
USB
For My Media(Movie/Photo/Music List) and SVC
12
External Speaker
Max 1W @ 8 ohm
Stereo SE output
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5. External Input Support Format
5.1. Component (Y, P
B
, P
R
) Speck out
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Proposed
1.
720×480
15.73
60.00
SDTV, DVD 480i
2.
720×480
15.63
59.94
SDTV, DVD 480i
3.
720×480
31.47
59.94
480p
4.
720×480
31.50
60.00
480p
5.
720×576
15.625
50.00
SDTV, DVD 625 Line
6.
720×576
31.25
50.00
HDTV 576p
7.
1280×720
45.00
50.00
HDTV 720p
8.
1280×720
44.96
59.94
HDTV 720p
9.
1280×720
45.00
60.00
HDTV 720p
10.
1920×1080
31.25
50.00
HDTV 1080i
11.
1920×1080
33.75
60.00
HDTV 1080i
12.
1920×1080
33.72
59.94
HDTV 1080i
13.
1920×1080
56.250
50
HDTV 1080p
14.
1920×1080
67.5
60
HDTV 1080p
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5.2. HDMI Input(PC/DTV)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
DTV
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
PC
1
640*350 @70Hz
31.468
70.09
25.17
EGA
2
720*400 @70Hz
31.469
70.08
28.321
DOS
3
640*480 @60Hz
31.469
59.940
25.175
VESA(VGA)
4
800*600 @60Hz
37.879
60.31
40.000
VESA(SVGA)
5
1024*768 @60Hz
48.363
60.00
65.000
VESA(XGA)
6
1152*864 @60Hz
54.348
60.053
80.002
VESA
7
1280*1024 @60Hz
63.981
60.020
108
VESA(SXGA)
FHD only(Support
to HDMI-PC)
8
1360*768 @60Hz
47.712
60.015
85.5
VESA(WXGA)
9
1920*1080 @60Hz
67.5
60.0
148.5
WUXGA
(Reduced blanking)
FHD only(Support
to HDMI-PC)
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED TV with
LB3AC chassis.
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
(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 °C ± 5 °C
Relative humidity : 65 ± 10 %
Input voltage : 220 V, 60 Hz
(6) Adjustment equipments: Color Analyzer (CA-210 or
CA-110), DDC Adjustment Jig, Service remote control.
(7) Push the "IN STOP" key - For memory initialization.
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.
* USB 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 starting.
(5) Updating Completed, The TV will restart automatically.
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
(1)
filexxx.bin
(4)
(5)
(6)
(7)...........OK
filexxx.bin
(2)
(3)
Please Check the Speed :
To use speed between
from 200KHz to 400KHz
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.
Click on the first or last page to see other 42LN549C / 42LP360H (CHASSIS:LB3AC) service manuals if exist.