LG 47LM6400 (CHASSIS:LT22E) Service Manual ▷ View online
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Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An
isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an
AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 M
Ω and 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check
(See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
IMPORTANT SAFETY NOTICE
SAFETY PRECAUTIONS
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SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
This spec sheet is applied to the 32/42/47/55/60/65LCD TV
used LT22E chassis.
2. Test condition
Each part is tested as below without special notice.
1) Temperature : 25 ºC ± 5 ºC (77 ºF ± 9 ºF), CST : 40 ºC±5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage : Standard input voltage (100~240V@
50/60Hz)
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
5) The receiver must be operated for about 5 minutes prior to
the adjustment.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC
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4. General Specification
No
Item
Specification
Remark
1.
Display Screen Device
32” wide Color Display Module
37” wide Color Display Module
42” wide Color Display Module
47” wide Color Display Module
55” wide Color Display Module
60” wide Color Display Module
65” wide Color Display Module
Resolution: 1920*1080
Resolution: 1920*1080
Resolution: 1920*1080
Resolution: 1920*1080
Resolution: 1920*1080
Resolution: 1920*1080
Resolution: 1920*1080
2.
Aspect Ratio
16:9
All
3.
LCD Module
32” TFT WUXGA LCD
37” TFT WUXGA LCD
42” TFT WUXGA LCD
47” TFT WUXGA LCD
55” TFT WUXGA LCD
60” TFT WUXGA LCD
65” TFT WUXGA LCD
4.
Operating Environment
1) Temp. : 0 ~ 40 deg
LGE SPEC
2) Humidity : 0 ~ 85%
5.
Storage Environment
1) Temp. : -20 ~ 60 deg
2) Humidity : 10 ~ 90%
2) Humidity : 10 ~ 90%
6.
Input Voltage
AC100 ~ 240V, 50/60Hz
7.
Power Consumption(Max) =
LCD(Module) + Backlight(LED)
FHD 60Hz
Edge LED
32”
50
W
Normal : T320HVN01.0 [32LS5700-DA/B]
Normal : LC320EUN-SEM1 [32LS5700-DA/B]
42”
70
W
Normal : LC420EUE-SEM1 [42LS5700-DA/B]
47”
85
W
Normal : LC470EUE-SEM1 [47LS5700-DA/B]
55”
W
Normal : LC550EUE-SEM1 [55LS5700-DA/B]
FHD
T120Hz
Edge LED
32”
45
W
FPR : LC320EUN-SEF2 [32LM6200-DA]
50
W
FPR : LC320EUA-KEF1 [32LM6400-DA]
37”
50
W
FPR : LC370EUN-SEF2 [37LM6200-DA]
42”
60
W
FPR : LC420EUE-SEF1 [42LM6200-DA]
60
W
FPR : LC420EUG-KEF1 [42LM6600-DA]
FPR : LC420EUG-KEF1 [42LM6690-DA]
FPR : LC420EUG-KEF1 [42LM6700-DC]
FPR : LC420EUG-KEF1 [42LM6400-DJ]
47”
90
W
FPR : LC470EUE-SEF1 [47LM6200-DA]
70
W
FPR : LC470EUG-KEF1 [47LM6400-DJ]
FPR : LC470EUG-KEF1 [47LM6690-DC]
FPR : LC470EUG-KEF1 [47LM6700-DA]
55”
115
W
FPR : LC550EUE-SEF1 [55LM6200-DA]
70
W
FPR : LC550EUG-KEF1 [55LM6400-DJ]
FPR : LC550EUG-KEF1 [55LM6700-DA]
FHD
M120Hz
Edge LED
65”
230
W
FPR : T645HB01 V0 [65LM6200-DA]
FHD
T240Hz
Edge LED
42”
70
W
FPR : LC420EUH-KEF1 [42LM7600-DA]
47”
90
W
FPR : LC470EUH-KEF1[47LM7600-DA]
55”
120
W
FPR : LC550EUH-KEF1[55LM7600-DA]
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8.
LCD Module
Size
Maker
Inch
(H) × (V) × (D)
LGD
32”
727.4 x 429.0 x 22.7
LC320EUN-SEM2
727.4 x 429.0 x 20.0
698.40 x 392.85 x 10.8
698.40 x 392.85 x 10.8
37”
837.2 x 490.6 x 22.7
LC370EUN-SEF2 : Edge 3D_T120Hz
42”
960.4 x 560.4 x 17.4
LC420EUE-SEF1 : Edge 3D_T120Hz
LC420EUE-SEM1 : Edge Non-3D_60Hz
968.4 x 564 x 10.8
968.4 x 564 x 12.2
47”
1070.6 x 622.0 x 22.0
LC470EUE-SEF1 : Edge 3D_T120Hz
LC470EUE-SEM1 : Edge Non-3D_60Hz
1078.6 x 626.0 x 10.8
1078.6 x 626.0 x 12.2
1054.5 x 600.0 x 1.8
1054.5 x 600.0 x 1.8
55”
1244.6 x 720.9 x 22.0
LC550EUE-SEF1 : Edge 3D_T120Hz
1228.6 x 711.4 x 20.7
LC550EUG-KEF1 : Edge 3D_T120Hz
LC550EUH-KEF1 : Edge 3D_T240Hz
1220.8 x 693.8 x 1.8
1220.8 x 693.8 x 1.8
1220.8 x 693.8 x 1.8
AUO
32”
727.4 x 429.0 x 20.0
T320HVN01.0 : Edge Non-3D_60Hz
65”
1508.0 x 878.0 x 12.8
T645HB01 V0 : Edge 3D_M120Hz
Pixel Pitch
Maker
Inch
(H) × (V) × (D)
LGD
32”
0.36375 x 0.36375
LC320EUN-SEF2 : Edge 3D_T120Hz
37”
0.4209 x 0.4209
LC370EUN-SEF2 : Edge 3D_T120Hz
42”
0.4845 x 0.4845
LC420EUE-SEF1 : Edge 3D_T120Hz
LC420EUE-SEM1 : Edge Non-3D_60Hz
47”
0.5415 x 0.5415
LC470EUE-SEF1 : Edge 3D_T120Hz
LC470EUE-SEM1 : Edge Non-3D_60Hz
55”
0.630 x 0.630
LC550EUE-SEF1 : Edge 3D_T120Hz
LC550EUG-KEF1 : Edge 3D_T120Hz
LC550EUH-KEF1 : Edge 3D_T240Hz
AUO
32”
0.36375 x 0.36375
T320HVN01.0 : Edge Non-3D_60Hz
65”
0.744 x 0.744
T645HB01 V0 : Edge 3D_M120Hz
Back Light
LGD
32”
Edge-LED
LC320EUN-SEF2
LC320EUA-KEF1
37”
Edge-LED
LC370EUN-SEF2
42”
Edge-LED
LC420EUE-SEF1
LC420EUG-KEF1
LC420EUE-SEM1
LC420EUH-KEF1
47”
Edge-LED
LC470EUE-SEF1
LC470EUG-KEF1
LC470EUE-SEM1
LC470EUH-KEF1
55”
Edge-LED
LC550EUE-SEF1
LC550EUG-KEF1
LC550EUH-KEF1
AUO
32”
Edge-LED
T320HVN01.0
65”
Edge-LED
T645HB01 V0
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