LG 47LN5700 / 47LN570T / 47LN570Y / 47LN5710 (CHASSIS:LB33B) Service Manual ▷ View online
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4.3. Local Dimming Function Check
Step 1) Turn on TV.
Step 2) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of IOP module moving.
Step 3) Confirm the Local Dimming mode.
Step 4) Press "exit" key.
4.4. Magic Motion Remote control test
- Equipment : RF Remote control for test, IR-KEY-Code
Remocon for test
- You must confirm the battery power of RF-Remote control
before test(recommend that change the battery per every lot)
- Sequence (test)
a) If you select the ‘start key(Wheel Key)’ on the controller,
you can pairing with the TV SET.
b) You can check the cursor on the TV Screen, when select
the ‘Wheel Key’ on the controller
c) You must remove the pairing with the TV Set by select
‘Mute Key’ on the controller
4.5. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
(1) Please input 3D test pattern like below.
(2) When 3D OSD appear automatically, then select OK key.
(3) Don't wear a 3D Glasses, check the picture like below.
4.6. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Step 3) Select Start Connection button in Network Connection.
Step 4) If the system finds any AP like blow PIC, it is working
well.
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5. Tool Option selection
▪ Method : Press "ADJ" key on the Adjustment remote control,
then select Tool option.
6. Ship-out mode check(In-stop)
▪ After final inspection, press "IN-STOP" key of the Adjustment
remote control and check that the unit goes to Stand-by
mode.
7.1. Method
- Check that Power cord is fully inserted to the SET.
(If loose, re-insert)
- Unit fully inserted Power cord, Antenna cable and A/V
arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX.)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
7.2. Checkpoint
▪ TEST voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
▪ TEST time: 1 second
▪ TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
NEUTRAL
▪ LEAKAGE CURRENT: At 0.5 mArms
8. Audio
Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
(3) RGB PC: 1 KHz sine wave signal 0.7 Vrms
9. USB S/W Download(Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is
Lower, it didn’t work.
But your downloaded version is Higher, USB data is
automatically detecting (Download Version High & Power
only mode, Set is automatically Download)
(3) Show the message “Do not unplug!”
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high than your TV have,
TV can lost all channel data. In this case, you have to
channel recover. if all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
No.
Item
Min
Typ
Max
Unit
Remark
1.
Audio practical
max Output, L/R
(Distortion=10%
max Output)
9
10
12
W
EQ Off
AVL Off
Clear Voice Off
8.10
10.8
Vrms
2.
Speaker (8 Ω
Impedance)
9
10
12
W
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Au
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o
AM
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LG
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21
22
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D
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IF
(+
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LA
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D
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H
D
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H
D
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R E A R (H
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AM
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VB
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BLOCK DIAGRAM
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200
400
540
521
530
301
500
120
300
510
570
123
122
560
LV
1
900
910
A2
A10
AT
1
* Set + Stand * Stand Base + Body
A2
A9
A10
A22
AT
1
Set + Stand
Stand Base
+
Stand Body
Option
EXPLODED VIEW
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 X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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