LG 60LA625C (CHASSIS:LA33B) Service Manual ▷ View online
LGE TV Division LG()
Establish : 12.7.6. 33
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
12-1
PAL ACI protection(Analog Lower)
-37
dB
12-2
PAL ACI protection(Analog Upper)
-36
dB
12-3
PAL ACI protection(Digital)
-28
dB
13
Ricean channel C/N
15
dB
14
Rayleigh channel C/N
18
dB
.Digital Receiver (DTMB : DMB-T) : C=3780, 16QAM, 0.8, PN=420, M=720
No
Item
Min
Typ
Max
Unit
Remarks
1
Frequency Range
474
52.5
866
219
219
MHz
UHF BAND
VHF BAND
VHF BAND
2
Input Impedance
75
Ω
3
Carrier
C=3780
4
Modulation
16QAM, 64QAM
5
Code Rate
0.4, 0.6, 0.8
6
Frame Header
PN420, PN945
7
Interleaver
M=720
8-1
RF Sensitivity(VHF)
-85
-25
dBm
8-2
RF Sensitivity(UHF)
-83
-25
dBm
LGE TV Division LG()
Establish : 12.7.6. 34
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
9
Channel Offsets
±150
kHz
10
C/N with AWGN
14
dB
11-1
PAL CCI Protection (Analog)
2
dB
11-2
PAL CCI Protection (Digital)
14
dB
12-1
PAL ACI protection(Analog Lower)
-37
dB
12-2
PAL ACI protection(Analog Upper)
-36
dB
12-3
PAL ACI protection(Digital)
-28
dB
13
Ricean channel C/N
15
dB
14
Rayleigh channel C/N
18
dB
Digital Receiver (DVB-C)
No
Item
Min
Typ
Max
Unit
Remarks
1.
Frequency Range
52.5
866
MHz
2.
Input Impedance
75
Ω
3.
Symbol Rate
4000 Ks/s~7200 Ks/s
4.
Modulation
16, 32, 64, 128, 256QAM
5
RF Sensitivity
47
70
dBuV
6.
C/N with AWGN
16QAM
20.5
dB
LGE TV Division LG()
Establish : 12.7.6. 35
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
32QAM
26.5
dB
64QAM
29.5
dB
128QAM
31.5
dB
256QAM
32.5
dB
8.optical specification
8.1
▣
▣
Common Condition for optical measurement
1) In non-impressed condition, measure optical measurement displayable as much as possible TV.
2) Measuring instrument : CA-210 or a sort of Color Analyzer.
3) Pattern Generator : VG-828 or a sort of digital pattern generator (displayable 100IRE/80IRE/0IRE Gray pattern)
4) Measure condition
● Test pattern : 100IRE(255Level) or 80IRE(204Level) or 0IRE(0Level) of Full window pattern.
● Test pattern : 100IRE(255Level) or 80IRE(204Level) or 0IRE(0Level) of Full window pattern.
● SET condition: Contrast & Brightness Level default
● Environment condition : Dark room in the non outside light
● Picture menu option condition for each video signal (use default black-level UI)
Input
Signal
Black Level
RF
NTSC-M
Low
PAL
Auto
AV
NTSC-J
High
PAL
Auto
Component
1080P
High
LGE TV Division LG()
Establish : 12.7.6. 36
Reform : 12.10.15 114
Reform : 12.10.15 114
LG 전자
LC33B Product Specification
HDMI
1080P
Low
5) Measurement
● Do heat-run LCD module at 60 minutes and over in normal temperature(25℃) by using full white pattern.
● Do heat-run LCD module at 60 minutes and over in normal temperature(25℃) by using full white pattern.
● Impress test pattern signal, and measure 3 times brightness of central of screen.
● Measure the same condition in video signal /RGB signal.
▣
Chroma (PSM: Vivid, Color Temperature: Cool )
– except “RGB PC Mode PSM: Standard, Color Temperature: Medium”
** The W/B Tolerance is ±0.002 for Adjustment, but for DQA ±0.015
(
W/B Variation Design(R&D) Spec : ±0.002, DQA Spec ±0.015)
No
Item
Min
Typ
Max
Unit
Remark
1. Cool
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.267
0.271
0.271
0.269
0.273
0.273
0.271
0.275
0.275
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
<Test Condition>
80% Full white pattern
Cool/Medium : Backlight 100
80% Full white pattern
Cool/Medium : Backlight 100
Warm : Backlight 30
** In the case of LED Model, Measure the color
temperature at the warm mode after heat run T.V
more than 60 minutes at Cinema mode.
temperature at the warm mode after heat run T.V
more than 60 minutes at Cinema mode.
2. Medium
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.283
0.291
0.291
0.285
0.293
0.293
0.287
0.295
0.295
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
3. Warm
White Balance, X axis
White Balance, Y axis
White Balance, Y axis
0.311
0.327
0.327
0.313
0.329
0.329
0.315
0.331
0.331
DQA : ±0.015
DQA : ±0.015
DQA : ±0.015
Color Space : After 90min heat run, test the Color Space Spec
Luminance : After 90min heat run, test the Luminance Spec
▣
Color Temperature measure specification
1) In non-impressed condition, measure White Balance displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
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