LG 42LA790V / 42LA790W (CHASSIS:LD34D) Service Manual ▷ View online
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No.
Item
Specification
Remarks
2
Broadcasting system
1) PAL-BG/DK/I/I’
2) SECAM L/L’, DK, BG, I
3) DVB-T/T2, C, S/S2
3
Program coverage
1 ) Digital TV
- VHF, UHF
- C-Band, Ku-Band
2) Analogue TV
-VHF : E2 to E12
-UHF : E21 to E69
-CATV : S1 to S20
-HYPER : S21 to S47
4
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 7.2 Msymbols/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
5
Input Voltage
AC 100 ~ 240V 50/60Hz
- 8 -
5. External input format
5.1. 2D Mode
(1) Component input(Y, CB/PB, CR/PR)
(2) HDMI Input (PC/DTV)
No.
Resolution
H-freq(kHz)
V-freq(Hz)
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 576i
6.
720×576
31.25
50.00
SDTV 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
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
VIC
Proposed
HDMI-PC
DDC
1
640*350
31.468
70.09
25.17
EGA
Х
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
VESA
7
1280*1024
63.981
60.020
108
VESA(SXGA)
O
8
1360*768
47.712
60.015
85.5
VESA(WXGA)
O
9
1920*1080
67.5
60.00
148.5
WUXGA(CEA861D)
O
HDMI-DTV
1
640*480
31.469 / 31.5
59.94/ 60
25.125
1
SDTV 480P
2
720*480
31.469 / 31.5
59.94 / 60
27.00/27.03
2,3
SDTV 480P
3
720*576
31.25
50
27
17,18
SDTV 576P
4
720*576
15.625
50
27
21
SDTV 576I
5
1280*720
37.500
50
74.25
19
HDTV 720P
6
1280*720
44.96 / 45
59.94 / 60
74.17/74.25
4
HDTV 720P
7
1920*1080
33.72 / 33.75
59.94 / 60
74.17/74.25
5
HDTV 1080I
8
1920*1080
28.125
50.00
74.25
20
HDTV 1080I
9
1920*1080
26.97 / 27
23.97 / 24
74.17/74.25
32
HDTV 1080P
10
1920*1080
25
33
HDTV 1080P
11
1920*1080
33.716 / 33.75
29.976 / 30.00
74.25
34
HDTV 1080P
12
1920*1080
56.250
50
148.5
31
HDTV 1080P
13
1920*1080
67.43 / 67.5
59.94 / 60
148.35/148.50
16
HDTV 1080P
- 9 -
5.2
. 3D Mode
(1) RF Input(3D supported mode manually)
No.
Resolution
Proposed
3D input proposed mode
1
HD - DTV
1080I
720P
2D to 3D
Side by Side(Half)
Top & Bottom
2
SD - DTV
576P
576I
3
SD - ATV(CVBS/SCART)
(3) HDMI 1.3 (3D supported mode manually)
No
Resolution
H-freq(kHz) V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
720*480
31.5
60
27.03
SDTV 480P
2D to 3D, Side by Side(Half), Top & Bottom,
Checker Board, Frame Sequential, Row
Interleaving, Column Interleaving
2
720*576
31.25
50
27
SDTV 576P
3
1280*720
45.00
60.00
74.25
HDTV 720P
4
1280*720
37.500
50
74.25
HDTV 720P
5
1920*1080
33.75
60.00
74.25
HDTV 1080I
2D to 3D, Side by Side(Half), Top & Bottom
6
1920*1080
28.125
50.00
74.25
HDTV 1080I
7
1920*1080
27.00
24.00
74.25
HDTV 1080P
2D to 3D, Side by Side(Half), Top & Bottom,
Checker Board, Row Interleaving, Column
Interleaving
8
1920*1080
28.12
25
74.25
HDTV 1080P
9
1920*1080
33.75
30.00
74.25
HDTV 1080P
10
1920*1080
67.50
60.00
148.5
HDTV 1080P
2D to 3D, Side by Side(Half), Top & Bottom,
Checker Board, Single Frame Sequential,
Row Interleaving, Column Interleaving
11
1920*1080
56.250
50
148.5
HDTV 1080P
(2) RF Input(3D supported mode automatically)
No.
Signal
3D input proposed mode
1
Frame Compatible
Side by Side(Half),
Top & Bottom
- 10 -
(4) HDMI 1.4b (3D supported mode automatically)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
VIC
3D input proposed mode
Proposed
1
640*480
31.469 / 31.5
59.94/ 60
25.125/25.2
1
Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 480P)
Secondary(SDTV 480P)
2
62.938/63
59.94/ 60
50.35/50.4
1
Frame packing
Line alternative
Secondary(SDTV 480P)
(SDTV 480P)
3
31.469 / 31.5
59.94/ 60
50.35/50.4
1
Side-by-side(Full)
(SDTV 480P)
4
720*480
31.469 / 31.5
59.94 / 60
27.00/27.03
2,3
Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 480P)
Secondary(SDTV 480P)
5
62.938/63
59.94 / 60
54/54.06
2,3
Frame packing
Line alternative
Secondary(SDTV 480P)
(SDTV 480P)
6
31.469 / 31.5
59.94 / 60
54/54.06
2,3
Side-by-side(Full)
(SDTV 480P)
7
720*576
31.25
50
27
17,18
Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 576P)
Secondary(SDTV 576P)
8
62.5
50
54
17,18
Frame packing
Line alternative
Secondary(SDTV 576P)
(SDTV 576P)
9
31.25
50
54
17,18
Side-by-side(Full)
(SDTV 576P)
10
1280*720
37.500
50
74.25
19
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 720P)
Primary(HDTV 720P)
11
75
50
148.5
19
Frame packing
Field alternative
Primary(HDTV 720P)
(HDTV 720P)
12
37.500
50
148.5
19
Side-by-side(Full)
(HDTV 720P)
13
44.96 / 45
59.94 / 60
74.18/74.25
4
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 720P)
Primary(HDTV 720P)
14
89.91/90
59.94 / 60
148.35/148.5
4
Frame packing
Line alternative
Primary(HDTV 720P)
(HDTV 720P)
15
44.96 / 45
59.94 / 60
148.35/148.5
4
Side-by-side(Full)
(HDTV 720P)
16
1920*1080
33.72 / 33.75
59.94 / 60
74.18/74.25
5
Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080I)
Primary(HDTV 1080I)
17
67.432/67.50
59.94 / 60
148.35/148.5
5
Frame packing
Line alternative
Primary(HDTV 1080I)
(HDTV 1080I)
18
33.72 / 33.75
59.94 / 60
148.35/148.5
5
Side-by-side(Full)
(HDTV 1080I)
19
28.125
50.00
74.25
20
Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080I)
Primary(HDTV 1080I)
20
56.25
50.00
148.5
20
Frame packing
Field alternative
Primary(HDTV 1080I)
(HDTV 1080I)
21
28.125
50.00
148.5
20
Side-by-side(Full)
(HDTV 1080I)
22
26.97 / 27
23.97 / 24
74.18/74.25
32
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Primary(HDTV 1080P)
23
43.94/54
23.97 / 24
148.35/148.5
32
Frame packing
Field alternative
Primary(HDTV 1080P)
(HDTV 1080P)
24
26.97 / 27
23.97 / 24
148.35/148.5
32
Side-by-side(Full)
(HDTV 1080P)
25
28.12
25
74.25
33
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Primary(HDTV 1080P)
26
56.24
25
148.5
33
Frame packing
Line alternative
Primary(HDTV 1080P)
(HDTV 1080P)
27
28.12
25
148.5
33
Side-by-side(Full)
(HDTV 1080P)
28
33.716 / 33.75
29.976 / 30.00
74.18/74.25
34
Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080P)
Secondary(HDTV 1080P)
29
67.432 / 67.5
29.976 / 30.00
148.35/148.5
34
Frame packing
Line alternative
Secondary(HDTV 1080P)
(HDTV 1080P)
30
33.716 / 33.75
29.976 / 30.00
148.35/148.5
34
Side-by-side(Full)
(HDTV 1080P)
31
56.250
50
148.5
31
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Secondary(HDTV 1080P)
32
67.43 / 67.5
59.94 / 60
148.35/148.50
16
Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Secondary(HDTV 1080P)
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