LG 37LN54XX / 37LN5403 / 37LN5405 / 37LN540U / 37LN541U (CHASSIS:LD31B / LD36B) 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 LCD TV used LD31B/
LD36B 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
EU(PAL Market-37Countries)
DTV & Analog (Total 37 countries)
DTV (MPEG2/4, DVB-T) :37 countries
UK/Italy/Germany/France/Spain/Sweden/Finland/Neth-
erlands/ Belgium/Luxemburg/ Greece/Denmark/Czech/
Austria /Hungary/Swiss/Croatia/TurkeyNorway/Slovenia/
Poland/Ukraine/Portugal/Ireland/Morocco/Latvia/Estonia/
Lithania/Rumania/Bulgaria/Russia/SlovakiaBosnia/Serbia/
Albania/Kazakhstan/Belarus
DTV (MPEG2/4, DVB-T2): 8 countries
UK/Denmark/Sweden/Finland/Norway/Ireland/Ukraine/
Kazakhstan
DTV (MPEG2/4, DVB-C): 37 countries
UK/Italy/Germany/France/Spain/Sweden/Finland/Nether-
lands/ Belgium/Luxemburg/ Greece/Denmark/Czech/Aus-
tria /Hungary/Swiss/Croatia/TurkeyNorway/Slovenia/Poland
/Ukraine/Portugal/Ireland/Morocco/Latvia/Estonia/Lithania/
Rumania/Bulgaria/Russia/SlovakiaBosnia/Serbia/Albania/
Kazakhstan/Belarus
DTV (MPEG2/4,DVB-S): 29 countries
Italy/Germany/France/Spain/Netherlands/ Belgium/Luxem-
burg/Greece/Czech/Austria /Hungary/Swiss/Croatia/Turkey/
Slovenia/Poland/Portugal/ Morocco/Latvia/Estonia/Lithania/
Rumania/Bulgaria/Russia/Slovakia/Bosnia/Serbia/Albania/
Belarus
Supported satellite : 22 satellites
HISPASAT 1C/1D, ATLANTIC BIRD 2, NILESAT 101/102,
ATLANTIC BIRD 3, AMOS 2/3, THOR 5/6, IRIUS 4,
EUTELSAT-W3A, EUROBIRD 9A, EUTELSAT-W2A,
HOTBIRD 6/8/9, EUTELSAT-SESAT, ASTRA 1L/H/M/
KR, ASTRA 3A/3B, BADR 4/6, ASTRA 2D, EUROBIRD 3,
EUTELSAT-W7, HELLASSAT 2, EXPRESS AM1, TURK-
SAT 2A/3A, INTERSAT10
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No.
Item
Specification
Remarks
2
Broadcasting system
Analogue TV
1) PAL-BG
2) PAL-DK
3) PAL-I/I’
4) SECAM-BG
5) SECAM-DK
6) SECAM L/L’
Digital TV
1) DVB-T/C/T2
Satellite Digital TV
1) DVB-T/C/S/S2
Analogue TV : (RF) VHF: E2 to E12, UHF : E21 to E69
(CATV) S1 to S20, HYPER: S21 to S47
Digital TV : VHF, UHF
Satellite TV : VHF, UHF,
C-Band, Ku-Band
* DVB-T2 ( T2 model only support )
* DVB-S/S2 (Satellite model only support )
3
Receiving system
Analog : Upper Heterodyne
Digital : COFDM, QAM
► 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
► DVB-T2
- Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256,
- Modulation : Code Rate
QPSK : 1/2, 2/5, 2/3, 3/4, 5/6
16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
64-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
256-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
► DVB-C
- Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s
- Modulation : 16QAM, 64-QAM, 128-QAM and 256-QAM
► DVB-S/S2
- symbolrate
DVB-S2 (8PSK / QPSK) : 2 ~ 45Msymbol/s
DVB-S (QPSK) : 2 ~ 45Msymbol/s
- viterbi
DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8
DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10
4
Scart Jack (1EA)
PAL, SECAM
Scart 1 Jack is Full scart and support RF-OUT(analog).
5
Video Input RCA(1EA)
PAL, SECAM, NTSC
4 System : PAL, SECAM, NTSC, PAL60
Common port
6
Component Input (1EA) Y/Cb/Cr
Y/Pb/Pr
Common port
7
HDMI Input (2EA)
HDMI1/2-DTV
Support HDCP
8
Audio Input (1EA)
Component & AV
Component & AV’s audio input is used by common port.
9
SDPIF out (1EA)
SPDIF out
10 Earphone out (1EA)
Antenna, AV1, AV2, Component,
HDMI1, HDMI2
LA58 Only
11 USB (1EA)
EMF, DivX HD, For SVC (download)
JPEG, MP3, DivX HD
12 DVB
DVB-T
CI : UK, Finland, Denmark, Norway, Sweden, Russia,
Spain, Ireland, Luxemburg, Belgium, Netherland
CI+ : France(Canal+), Italy(DGTVi)
DVB-C
CI : Switzerland, Austria, Slovenia, Hungary, Bulgaria
CI+ : Switzerland(UPC,Cablecom), Netherland(Ziggo),
Germany(KDG,CWB), Finland(labwise)
DVB-S
CI + : Germany(Astra HD+ )
13 Ethernet (1EA)
DLNA(Wired, DMP only)
LA58 : for DLNA
T2 Model ( LA58V, LA58U, LN54V, LN54U ) : for MHEG
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5. Video resolutions (2D)
5.1. Component Input (Y, C
B
/P
B
, C
R
/P
R
)
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
Proposed
1
720*576
15.625
50.00
13.5
SDTV ,DVD 576I
2
720*480
15.73
60.00
13.5135
SDTV ,DVD 480I
3
720*480
15.73
59.94
13.50
SDTV ,DVD 480I
4
720*576
31.25
50.00
27.00
SDTV 576P
5
720*480
31.50
60.00
27.027
SDTV 480P
6
720*480
31.47
59.94
27.00
SDTV 480P
7
1280*720
37.50
50.00
74.25
HDTV 720P
8
1280*720
45.00
60.00
74.25
HDTV 720P
9
1280*720
44.96
59.94
74.176
HDTV 720P
10
1920*1080
28.125
50.00
74.25
HDTV 1080I
11
1920*1080
33.75
60.00
74.25
HDTV 1080I
12
1920*1080
33.72
59.94
74.176
HDTV 1080I
13
1920*1080
56.25
50.00
148.50
HDTV 1080P
14
1920*1080
67.50
60.00
148.50
HDTV 1080P
15
1920*1080
67.432
59.94
148.352
HDTV 1080P
16
1920*1080
27.00
24.00
74.25
HDTV 1080P
17
1920*1080
26.97
23.94
74.176
HDTV 1080P
18
1920*1080
33.75
30.00
74.25
HDTV 1080P
19
1920*1080
33.71
29.97
74.176
HDTV 1080P
5.2. HDMI Input(PC/DTV)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
PC(DVI)
DDC
1
640*350
31.468
70.09
25.17
EGA
X
2
720*400
31.469
70.08
28.32
DOS
O
3
640*480
31.469
59.94
25.17
VESA(VGA)
O
4
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6
1152*864
54.348
60.053
80.00
VESA
O
7
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
8
1280*1024
63.981
60.020
108.0
VESA (SXGA)
O
FHD only
9
1920*1080
67.50
60.00
148.5
HDTV 1080P
O
FHD only
DTV
1
720*480
31.47
59.94
27.00
SDTV 480P
2
720*480
31.50
60.00
27.027
SDTV 480P
3
720*576
31.250
50.00
27.00
SDTV 576P
4
1280*720
37.50
50.00
74.25
HDTV 720P
5
1280*720
45.00
60.00
74.25
HDTV 720P
6
1280*720
44.96
59.94
74.176
HDTV 720P
7
1920*1080
28.125
50.00
74.25
HDTV 1080I
8
1920*1080
33.75
60.00
74.25
HDTV 1080I
9
1920*1080
33.72
59.94
74.176
HDTV 1080I
10
1920*1080
56.250
50.00
148.50
HDTV 1080P
11
1920*1080
67.50
60.00
148.50
HDTV 1080P
12
1920*1080
67.432
59.94
148.352
HDTV 1080P
13
1920*1080
27.00
24.00
74.25
HDTV 1080P
14
1920*1080
26.97
23.976
74.176
HDTV 1080P
15
1920*1080
33.75
30.00
74.25
HDTV 1080P
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6. Video resolutions (3D)
6.1. HDMI Input
No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1.
1920*1080
53.95 / 54
23.98 / 24
148.35/148.5
HDTV 1080P
Frame packing
2.
1280*720
89.9 / 90
59.94/60
148.35/148.5
HDTV 720P
Frame packing
3.
1280*720
75
50
148.5
HDTV 720P
Frame packing
4
1920*1080
67.5
60
148.5
HDTV 1080P
Side by Side(half), Top and bottom
5
1920*1080
56.3
50
148.5
HDTV 1080P
Side by Side(half), Top and bottom
6
1280*720
45
60
74.25
HDTV 720P
Side by Side(half), Top and Bottom
7
1280*720
37.5
50
74.25
HDTV 720P
Side by Side(half), Top and Bottom
8
1920*1080
33.7
60
74.25
HDTV 1080i
Side by Side(half), Top and Bottom
9
1920*1080
28.125
50
74.25
HDTV 1080i
Side by Side(half), Top and Bottom
10
1920*1080
27
24
74.25
HDTV 1080P
Side by Side(half), Top and Bottom
11
1920*1080
33.7
30
89.1
HDTV 1080P
Side by Side(half), Top and Bottom
6.2. RF 3D Input(DTV)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1.
1280*720
37.500
50
74.25
HDTV 720P
Side by Side, Top & Bottom
2.
1920*1080
28.125
50
74.25
HDTV 1080I
Side by Side, Top & Bottom
6.3. USB Input
6.4. DLNA Input
6.5. 3D Input mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1.
1920*1080
33.75
30.000
74.25
HDTV 1080P
Side by Side, Top & Bottom **support
MPO(Photo)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1.
1920*1080
33.75
30
74.25
HDTV 1080p
Side by Side, Top & Bottom
No.
Side by Side
Top & Bottom
Single Frame Sequential
Frame Packing
1
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