LG 32LN545B-CT (CHASSIS:LD31B / LD36B) Service Manual ▷ View online
LGE Display Division LG(51)
Establish : 12/08/31 25
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
If it does not use Prior measurement, use generally simple test measurement.
The Correct measure specification is followed by IEC61988-2/CD, JAPAN EIAJ-2710
Signal
Picture Mode
Dynamic Contrast
Dynamic Color
Clear White
Black Level
RF
NTSC-M
Vivid
High
High
High
Low
PAL
Vivid
High
High
High
Auto
AV
NTSC-J
Vivid
High
High
High
High
PAL
Vivid
High
High
High
Auto
Component
1080p
Vivid
High
High
High
High
RGB
1024x768
Vivid
Off deactivated
NA
HDMI
DTV 1080p
Vivid
High
High
High
Low
LGE Display Division LG(51)
Establish : 12/08/31 26
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
10. Audio
All measurement should be implemented with following condition
Model
R&D Spec
Condition
32/39/42/47/55LN5400
10W + 10W
-EQ OFF (at SVC Menu) with Dummy Load (8ohm)
-Sound mode: Standard / Picture mode: Vivid
-Auto volume : Off
-Sound mode: Standard / Picture mode: Vivid
-Auto volume : Off
No
Item
Min
Typ
Max
Unit
Measurement condition
Remark
1
Audio practical max Output, L/R
9
10
12
W
EQ Off/AVL Off
Clear Voice Off
Clear Voice Off
9
10
12
W
RF Audio Output
(RF 1kHz
100% modulation)
(RF 1kHz
100% modulation)
9
10
12
W
AV Audio Output
(1KHz 0.4Vrms)
(1KHz 0.4Vrms)
9
10
12
W
PC Audio Output
(1KHz 0.7Vrms)
(1KHz 0.7Vrms)
2.
Speaker (8Ω Impedance)
10
15
W
3.
Audio S/N Ratio
Mono/L,R
40.0
dB
Audio S/N Ratio
4.
Audio Buzz P/S Ratio
30.0
dB
IF Modulator P/S Ratio variable
: S/N = 30dB, P/S Ratio
: S/N = 30dB, P/S Ratio
5.
Audio Noise Limited
Sensitivity
Sensitivity
Mono
-80.0
dBm
S/N = 30dB,
Input electric field intensity
Input electric field intensity
Stereo
-70.0
6.
Audio Frequency
Response, Low
Response, Low
L/R
80.0
Hz
Frequency Response, Low
7.
Audio Frequency
Response, High
Response, High
L/R
7.0
10.0
15.0
KHz
Frequency Response, High
8.
Audio Bass/Treble Characteristic, L/R
3.0
6.0
9.0
dB
By operating Tone control,
Sound quality control ability
Sound quality control ability
9.
Audio THD, L/R
2.0
%
Measure harmonic content in signal
10
Audio Max Distortion
20.0
%
11
Audio Residual Hum, L/R
12.5
uW
By adjusting Power Frequency ripple or AM
Modulation,
High Frequency Output
Modulation,
High Frequency Output
12
Dual Sound Crosstalk, Main/Sub
45
-45.0
dB
Dual Sound Crosstalk, Main/Sub
13
Stereo Separation, L/R
25.0
dB
Stereo Separation, L/R
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
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