Read LG 55LH90 (CHASSIS:LA92C) Service Manual online
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1. Application range
This specification is applied to the 42” LCD TV used LA92C
chassis.
chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature: 25±5ºC
2) Relative Humidity: 65±10%
3) Power Voltage : Standard input voltage(100-240V~, 50/60Hz)
2) Relative Humidity: 65±10%
3) Power Voltage : Standard input voltage(100-240V~, 50/60Hz)
* Standard Voltage of each product is marked by models
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
accordance with BOM.
5) The receiver must be operated for about 20 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
2) Demanded other specification
- Safety: UL, CSA, IEC specification
- EMC: FCC, ICES, IEC specification
- EMC: FCC, ICES, IEC specification
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
4. General Specification(TV)
No
Item
Specification
Remark
1.
Receiving System
1) ATSC / NTSC-M
2.
Available Channel
1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
3.
Input Voltage
1) AC 100 ~ 240V 50/60Hz
Mark : 110V, 60Hz : USA
220V, 60Hz : KOR
NORTH AMERICA
55LH90-UB
47LH90-UB
42LH90-UB
47LH90-UB
42LH90-UB
4.
Market
KOREA
55LH90QD-NA
47LH90QD-NA
42LH90QD-NA
47LH90QD-NA
42LH90QD-NA
55 inch Wide(1920 108 0)
FHD
55LH90-UB / 55LH90QD-NA
47 inch Wide(1920 108 0)
FHD
47LH90-UB / 47LH90QD-NA
5.
Screen Size
42 inch Wide(1920 108 0)
FHD
42LH90-UB / 42LH90QD-NA
6.
Aspect Ratio
16:9
7.
Tuning System
FS
LC550WUL-SBM1
LGD
55LH90-UB
/
55LH90QD-NA
LC470WUL-SBM1
LGD
47LH90-UB
/
47LH90QD-NA
8.
Module
LC420WUL-SBM1
LGD
42LH90-UB
/
42LH90QD-NA
9.
Operating Environment
1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
10. Storage
Environment
1) Temp : -20 ~ 60 deg
2) Humidity : ~ 85 %
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