LG 42LN5400-CN (CHASSIS:LD31B / LD36B) Service Manual ▷ View online
LGE Display Division LG(51)
Establish : 12/08/31 27
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
14
Pilot Detection Sensitivity, Dual/Stereo
-70.0
dBm
At Weak electric field,
Measure Stereo /Dual Signal operating point
Measure Stereo /Dual Signal operating point
15
Audio Balance Characteristic, L/R
50.0
mV
Audio balance operation check
16
Audio Balance Deviation, L/R
-1.5
0.0
1.5
dB
FM 300% over modulation,
Distortion valuation
Distortion valuation
17
Output Level at Volume 30%
0.232
0.281
0.362
W
18.
Auto Volume Level
* “Must” Turn off all Equalizer setting of the
source player
* “Must” Turn off all Equalizer setting of the
source player
3
6
9
dBu
*PEQ
On/Off
On/Off
1KHz_sine.wav
**
**
<Test condition>
1. Before the Test (PEQ “off”)
Source Output Level: 250mVrms±10mV
TV Set Output Level: 450mVrms±10mV
*PEQ: Parametric Equalize
2. Clear Voice Off
3. WhiteNoise_Min/Max.wav Check case
- Specific area flat (under ±1dBu)
** Check the highest point
1. Before the Test (PEQ “off”)
Source Output Level: 250mVrms±10mV
TV Set Output Level: 450mVrms±10mV
*PEQ: Parametric Equalize
2. Clear Voice Off
3. WhiteNoise_Min/Max.wav Check case
- Specific area flat (under ±1dBu)
** Check the highest point
1
4
7
dBu
*PEQ
On/Off
On/Off
Whitenoise_max.wav
(mp3)
(mp3)
9
12
15
dBu
*PEQ Off
Whitenoise_min.wav
(mp3)
(mp3)
7
10
13
dBu
*PEQ ON
Whitenoise_min.wav
(mp3)
(mp3)
19
Clear Voice II
* “Must” Turn off all Equalizer setting of the
source player
* “Must” Turn off all Equalizer setting of the
source player
Level
Min
Typ.
Maz
Unit
<Test condition>
1. Before the Test (PEQ “off”)
Source Output Level: 250mVrms±10mV
TV Set Output Level: 450mVrms±10mV
*PEQ: Parametric Equalize
2. AVL Off
3. Clear Voice Step:Off, +6 ~-6(13 Steps)
4. Test Source:
ClearVoice_SweepTest3.wav(mp3)
*From +3 to -3 see just its position not value.
1. Before the Test (PEQ “off”)
Source Output Level: 250mVrms±10mV
TV Set Output Level: 450mVrms±10mV
*PEQ: Parametric Equalize
2. AVL Off
3. Clear Voice Step:Off, +6 ~-6(13 Steps)
4. Test Source:
ClearVoice_SweepTest3.wav(mp3)
*From +3 to -3 see just its position not value.
-6
-16.0
-10.0
-4.0
dBr
-5
-13.5
-9.0
-4.5
-4
-11.0
-7.0
-3.0
-3
-7.5
-5.0
-2.5
-2
-6.5
-4.0
-1.5
-1
-3.3
-2.0
-0.7
0
0.5
1
0.6
1.6
2.6
2
1.25
3.25
5.25
3
2.2
4.7
7.2
4
3.0
6.0
9.0
5
3.7
7.2
10.7
6
4.2
8.2
12.2
-6
-17.0
-10.0
-3.0
-5
-15.0
-9.0
-3.0
-4
-12.0
-7.0
-2.0
-3
-9.0
-5.0
-1.0
-2
-7.0
-4.0
-1.0
-1
-3.5
-2.0
-0.5
0
0.5
1
0
2.0
4
2
0.5
3.0
5.5
LGE Display Division LG(51)
Establish : 12/08/31 28
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
3
1.5
4.5
7.5
4
2.0
6.0
10.0
5
2.5
7.0
11.5
6
4.0
8.5
13.0
20
DOLBY AC3
Standard
Standard
Level Accuracy
-3
0
dB
<Test condition>
EQ Off
AVL Off
Clear Voice Off
EQ Off
AVL Off
Clear Voice Off
Channel separation
60
dB
Frequency
Response
Response
-1.0
0
0.5
dB
20Hz
~20KHz)
THD+N vs
Frequency
Frequency
-60
dB
THD vs Level
-60
dB
Dynamic Range
85
dB
Noise modulation
-3.0
+3.0
IEC 61937 EYE
Pattern
Pattern
25
%
21
Optical Output
RF
-15
-14
-13
dBfs
AV : 0.4Vrms è 1KHz Sine Wave
Comp : 0.4Vrms è 1KHz Sine Wave
RGB : 0.7Vrms è 1KHz Sine Wave
* Only LA5800
Comp : 0.4Vrms è 1KHz Sine Wave
RGB : 0.7Vrms è 1KHz Sine Wave
* Only LA5800
AV
-15
-14
-13
dBfs
Component
-15
-14
-13
dBfs
PC
-10
-9
-8
dBfs
11. Power
No
Item
Min
Typ
Max
Unit
Remarks
1.
AC Power Shut Down Voltage
90
264
Vac
2.
DC Voltage, Inverter
32”
22.8
24.0
25.2
Vdc
39”
22.8
24.0
25.2
Vdc
42”
22.8
24.0
25.2
Vdc
47”
22.8
24.0
25.2
Vdc
55”
22.8
24.0
25.2
Vdc
3.
DC Voltage, LCD Panel
32”
11.4
12.0
12.6
Vdc
39”
11.4
12.0
12.6
Vdc
42”
11.4
12.0
12.6
Vdc
47”
11.4
12.0
12.6
Vdc
LGE Display Division LG(51)
Establish : 12/08/31 29
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
No
Item
Min
Typ
Max
Unit
Remarks
55”
11.4
12.0
12.6
Vdc
4.
DC Voltage, Stand By
3.3
3.5
3.7
Vdc
5.
DC Voltage, Sound AMP (24V)
DC Voltage, Sound AMP (3.3V)
DC Voltage, Sound AMP (3.3V)
21.6
3.0
24
3.3
26.4
3.6
Vdc
Vdc
Vdc
STA380BW
* PSU / LPB Model : 24V Vcc
* LIPS Model : 20V Vcc
* PSU / LPB Model : 24V Vcc
* LIPS Model : 20V Vcc
6.
DC Voltage, Tuner (3.3V)
DC Voltage, Tuner (1.8V)
DC Voltage, Tuner (1.8V)
3.17
1.74
1.74
3.3
1.8
1.8
3.43
1.86
1.86
Vdc
TDSN-C201D
7.
DC Voltage, Mstar (3.3V)
DC Voltage, Mstar (2.5V)
DC Voltage, Mstar (1.5V)
DC Voltage, Mstar (1.26V)
DC Voltage, Mstar (2.5V)
DC Voltage, Mstar (1.5V)
DC Voltage, Mstar (1.26V)
3.14
2.38
1.43
2.38
1.43
1.1
3.3
2.5
1.5
2.5
1.5
1.26
3.46
2.62
1.57
2.62
1.57
1.4
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
LGE2111A-VD(S7LR2)
12. Standard Level For Input Signal (Video, Audio, Y/C, Component, RGB)
No
Item
Min
Typ
Max
Unit
Remarks
1.
Video Input Level
0.9
1
1.1
Vpp
2.
Audio Input Level
0.3
0.4
0.5
Vrms
NTSC
0.4
0.5
0.6
Vrms
PAL,SECAM
3.
Component Video Input Level
(Y, C
(Y, C
B
/P
B
, C
R
/P
R
)
0.6
0.7
0.8
Vpp
4.
R/G/B Video Input Level,
0.6
0.7
0.8
Vpp
LGE Display Division LG(51)
Establish : 12/08/31 30
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
13. External Input Support Format
13.1 Component Video Input (Y, PB, PR)
No.
Specification
Remark
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, 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
28.125
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
26.97
23.976
HDTV 1080p
14
1920×1080
27.00
24
HDTV 1080p
15
1920×1080
33.71
29.97
HDTV 1080p
16
1920×1080
33.75
30
HDTV 1080p
17
1920×1080
56.25
50
HDTV 1080p
18
1920×1080
67.432
59.94
HDTV 1080p
19
1920×1080
67.5
60
HDTV 1080p
13.2 RGB(PC) : (Not apply to LC36B model-Spec out)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock (MHz)
Proposed
Remarks
1.
640*350 @70Hz
31.47
70.09
25.17
EGA
2.
720*400 @70Hz
31.468
70.08
28.321
DOS
3.
640*480 @60Hz
31.469
59.940
25.175
VESA(VGA)
4.
800*600 @60Hz
37.879
60.317
40.000
VESA(SVGA)
5.
1024*768 @60Hz
48.363
60.004
65.000
VESA(XGA)
Click on the first or last page to see other 42LN5400-CN (CHASSIS:LD31B / LD36B) service manuals if exist.