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Model
26LN45XX 26LN4503 26LN450B 26LN450U 26LN4573 26LN4575 26LN457B 26LN457U (CHASSIS:LC31A LD31T)
Pages
33
Size
6.87 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
26ln45xx-26ln4503-26ln450b-26ln450u-26ln4573-26ln4.pdf
Date

LG 26LN45XX / 26LN4503 / 26LN450B / 26LN450U / 26LN4573 / 26LN4575 / 26LN457B / 26LN457U (CHASSIS:LC31A / LD31T) Service Manual ▷ View online

- 6 -
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  LC31A  / 
LD31T 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/CIS(PAL Market-37 Countries)
DTV & Analog (Total 37 countries)
DTV (MPEG2/4, DVB-T) :37 countries
UK/Italy/Germany/France/Spain/Sweden/Finland/Netherlands/
Belgium/Luxemburg/ Greece/Denmark/Czech/Austria/Hungary 
/Swiss/Croatia/Turkey/Norway/Slovenia/Poland/Ukraine/Portu-
gal/Ireland/Morocco/Latvia/Estonia/Lithania/Rumania/Bulgaria/
Russia/SlovakiaBosnia/Serbia/Albania/Kazakhstan/Belarus
*4 Country, Nordic option(EU model only)
  - Denmark , Finland, Norway, Sweden
DTV (MPEG2/4, DVB-T2): 8 countries
UK/Denmark/Sweden/Finland/Norway/Ireland/Ukraine/Kaza-
khstan
DTV (MPEG2/4, DVB-C): 37 countries
UK/Italy/Germany/France/Spain/Sweden/Finland/Netherlands/
Belgium/Luxemburg/ Greece/Denmark/Czech/Austria /Hun-
gary/Swiss/Croatia/Turkey/Norway/Slovenia/Poland/Ukraine/
Portugal/Ireland/Morocco/Latvia/Estonia/Lithania/Rumania/
Bulgaria/Russia/Slovakia/Bosnia/Serbia/Albania/Kazakhstan/
Belarus
DTV (MPEG2/4,DVB-S): 29 countries
Italy/Germany/France/Spain/Netherlands/ Belgium/Luxemburg/
Greece/ Czech/Austria /Hungary/Swiss/Croatia/Turkey/Slov-
enia/Poland/Portugal/ Morocco/Latvia/Estonia/Lithuania/Ruma-
nia/Bulgaria/Russia/SlovakiaBosnia/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, EUTEL-
SAT-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, TURKSAT 2A/3A, INTERSAT10
- 7 -
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)B : 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 ~ 45 Msymbol/s
DVB-S  (QPSK) : 2 ~ 45 Msymbol/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
Component Input (1EA) Y/Pb/Pr
6
CVBS Input (1EA)
PAL, SECAM, NTSC
4 System(Rear) : PAL, SECAM, NTSC, PAL60
CVBS Video input is used by common port with Component.
7
RGB Input
RGB-PC
Analog(D-SUB 15PIN)
8
HDMI Input (1EA)
HDMI
Rear1EA / HDMI version 1.4/ support PC 
Support HDCP/HDMI : MHL Support
9
Audio Input (3EA)
RGB/DVI Audio
Component & CVBS
SCART
L/R Input
CVBS Audio input is used by common port with Component.
10 Headphone out (1EA)
Antenna, AV, Component, RGB, HDMI Side 1EA
11
USB (1EA)
Picture, Music, Movie, SVC
Software Update + Picture + Music + Movie
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)
13 Local Key (Touch)
14 LAN JACK
Modular
Only UK model
- 8 -
5. Timing
5.1. RGB/HDMI (PC)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*400
31.468
70.080
28.321
2.
640*480
31.469
59.940
25.175
3.
640*480
37.500
75.000
31.500
4.
800*600
37.879
60.317
40.000
5.
800*600
46.875
75.000
49.500
6.
1024*768
48.363
60.004
65.000
7.
1024*768
60.023
75.029
78.750
8.
1280*720
45.000
60.000
74.250
9.
1280*800
49.702
59.810
83.500
10.
1366*768
47.717
59.79
85.5
5.2. HDMI (DTV)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*480
31.469 
31.5000
59.940 
60.000
27.000
27.030 
SDTV 480P
2.
720*576
31.250
50.000
27.864
SDTV 576P
3.
1280*720
37.500
50.000
74.250
HDTV 720P
4.
1280*720
44.960
45.000
59.940 
60.000
74.170
74.250
HDTV 720P
5.
1920*1080
33.720
33.750
59.940 
60.000
74.170
74.250
HDTV 1080I
6.
1920*1080
28.125
50.000
74.250
HDTV 1080I
7.
1920*1080
27.000
24.000
74.250
HDTV 1080P
8.
1920*1080
33.750
30.000
74.250
HDTV 1080P
9.
1920*1080
56.250
50.000
148.500
HDTV 1080P
10.
1920*1080
67.430
67.500
59.940
60.000
148.350
148.500
HDTV 1080P
- 9 -
5.3. Component
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*480
15.730
59.940
13.500
SDTV, DVD 480I(525I)
2.
720*480
15.750
60.000
13.514
SDTV, DVD 480I(525I)
3.
720*576
15.625
50.000
13.500
SDTV, DVD 576I(625I) 50Hz
4.
720*480
31.470
59.940
27.000
SDTV 480P
5.
720*480
31.500
60.000
27.027
SDTV 480P
6.
720*576
31.250
50.000
27.000
SDTV 576P 50Hz
7.
1280*720
44.960
59.940
74.176
HDTV 720P
8.
1280*720
45.000
60.000
74.250
HDTV 720P
9.
1280*720
37.500
50.000
74.250
HDTV 720P 50Hz
10.
1920*1080
33.720
59.940
74.176
HDTV 1080I
11.
1920*1080
33.750
60.000
74.250
HDTV 1080I
12.
1920*1080
28.125
50.000
74.250
HDTV 1080I 50Hz, 
13.
1920*1080
56.250
50.000
148.500
HDTV 1080P
14.
1920*1080
67.432
59.940
148.350
HDTV 1080P
15.
1920*1080
67.500
60.000
148.500
HDTV 1080P
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