LG 55LM640T User Manual

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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.12. GND and Internal Pressure check
4.12.1. Method
(1) GND & Internal Pressure auto-check preparation
- Check that Power cord is fully inserted to the SET.
(If loose, re-insert)
(2) Perform GND & Internal Pressure auto-check
- 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.
4.12.2. 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
- Internal Pressure TEST = POWER CORD GND & LIVE &
NEUTRAL
▪ LEAKAGE CURRENT: At 0.5 mArms
5. 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
6. 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 Low,
it didn't work. But your downloaded version is High, USB
data is automatically detecting.
(Download Version High & Power only mode, Set is
automatically Download)
(3) Show the message "Copying files from memory".
(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 (8Ω
Impedance)
9 10 12 W
EQ Off
AVL Off
Clear Voice Off

LG 55LM640T Specifications

General

3D	Yes
Annual energy consumption	104 kWh
Display diagonal	55 \
Native aspect ratio	16:9
Native refresh rate	60 Hz
LED backlighting type	-
Screen format adjustments	4:3, 14:9, 16:9, Zoom
Motion interpolation technology	MCI (Motion Clarity Index) 400
Tuner type	Analog & digital
Analog signal format system	PAL, SECAM
Digital signal format system	DVB-T2, ISDB-C
RMS rated power	20 W
Number of speakers	2
DVI port	No
HDMI ports quantity	4
DVI-D ports quantity	0
USB 2.0 ports quantity	3
Ethernet LAN (RJ-45) ports	1
Lifestyle apps	Skype
Audio formats supported	AC3, MP3
Image formats supported	JPG
Video formats supported	DIVX, MPEG2, MPEG4
Product color	Black
Panel mounting interface	400 x 400, 400 x 600 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.3 W
Power consumption (typical)	71 W

Weight and Dimensions

Depth (with stand)	331 mm
Height (with stand)	795 mm
Depth (without stand)	33.6 mm
Width (without stand)	1232 mm
Height (without stand)	723 mm