LG LAS450H Bedienungsanleitung

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”

IN THIS MANUAL.

Internal Use Only

Website http://biz.lgservice.com

Wireless Sound Bar

MARCH, 2015P/NO : AFN77152089

MODEL: LAS450H / LAC550H

1-1

CONTENTS

SECTION 1 ........ GENERAL

SECTION 2 ........ CABINET & MAIN CHASSIS

SECTION 3 ........ ELECTRICAL

SECTION 4 ........ WIRELESS SUBWOOFER PART

SECTION 5 ........ REPLACEMENT PARTS LIST

1-2

SECTION 1

GENERAL

CONTENTS

ESD PRECAUTIONS......................................................................................................................................... 1-3

WIRELESS SUBWOOFER CONNECTION....................................................................................................... 1-4

HIDDEN KEY MODE ......................................................................................................................................... 1-5

MCS / EQ HIDDEN KEY GUIDE ....................................................................................................................... 1-6

MCS / EQ PROGRAM UPDATE GUIDE........................................................................................................... 1-7

SPECIFICATIONS ............................................................................................................................................. 1-8

1-3

ESD PRECAUTIONS

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components

commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated

circuits and some field-effect transistors and semiconductor chip components. The following techniques should

be used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off

any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a

commercially available discharging wrist strap device, which should be removed for potential shock reasons

prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface

such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can

generate electrical charges sufficient to damage ESD devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD

devices.

6. Do not remove a replacement ESD device from its protective package until immediately before you are

ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by

conductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the

protective material to the chassis or circuit assembly into which the device will by installed.

CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER

SAFETY PRECAUTIONS.

8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion

such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate

static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS

INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED

“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF

ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE

SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE

LITERATURE.

1-4

WIRELESS SUBWOOFER CONNECTION

LED indicator of wireless subwoofer

LED Color Status

Yellow-green

(Blink) The connection is trying.

Yellow-green The connection is completed.

Red

The wireless subwoofer is

in standby mode or the

connection is failed.

Off

(No display)

The power cord of wireless

subwoofer is disconnected.

Setting up the wireless subwoofer

for the ﬁrst time

1. Connect the power cord of the wireless subwoofer

to the outlet.

2. Turn on the main unit : The main unit and wireless

subwoofer will be automatically connected.

Manually pairing wireless subwoofer

When your connection is not completed, you can see

the red LED or the blinking of yellow-green LED on

the wireless subwoofer and the subwoofer does not

make sound. To solve the problem, follow the below

steps.

1. Adjust volume level of the main unit to minimum.

- “VOL MIN” appears on the display window.

2. Press and hold (Mute) on the remote control for

about 3 seconds.

- “WL RESET” appears on the display window

brieﬂy and Red LED on the main unit is blinking.

3. If the LED of the wireless subwoofer already blinks

in yellow-green continually, you can skip this step.

Press and hold PAIRING on the back of the

wireless subwoofer for more than 5 seconds.

- The LED of the wireless subwoofer lights up

alternately in red and yellow-green.

4. Disconnect the power cord of the main unit and the

wireless subwoofer.

5. Connect them again after the LED of the main unit

and the wireless subwoofer is fully turned off.

The main unit and the wireless subwoofer will be

paired automatically when you turn on the main unit.

- When the connection is completed, you can see

the yellow-green LED on the subwoofer.

Note

•It takes a few seconds (and may take longer) for

the main unit and the subwoofer to communicate

with each other and make sounds.

•The closer the main unit and the subwoofer, the

better sound quality. It is recommended to install

the main unit and the subwoofer as close as

possible (within 5 m) and avoid the cases below.

- There is a obstacle between the main unit and the

subwoofer.

- There is a device using same frequency with this

wireless connection such as a medical equipment,

a microwave or a wireless LAN device.

1-5

HIDDEN KEY MODE

HIDDEN MODE KEYS

EEPROM EDIT Main set ‘-’ (Volume) + Remote control ‘OPTICAL’

EEPROM CLEAR (Initialize) Main set ‘-’ (Volume) + Remote control ‘SOUND EFFECT’

VERSION CHECK Main set ‘-’ (Volume) + Remote control ‘Play’

CLIP OFF

Main set ‘-’ (Volume) + Remote control ‘FUNC’ (Function)CLIP ON

CLIP ON GAIN MONITERING

MAX VOLUME EDIT

ENTRANCE KEY : Main set ‘-’ (Volume) + Remote control ‘SLEEP’

SETTING KEY : VOL +/-

EXIT KEY : Play/Pause

CLIP ALGORITHM EDIT Main set ‘-’ (Volume) + Remote control ‘VOL -’

WIRELESS RF CHANNEL CHANGE Main set ‘-’ (Volume) + Remote control ‘INFO’

SOUND BYPASS Main set ‘-’ (Volume) + Remote control ‘DRC’

APD TIME DISPLAY Main set ‘-’ (Volume) + Remote control ‘AV SYNC’

UP REPEAT (Up)

DOWN Stop/Ok (Down)

RIGHT F.Skip (Right)

LEFT B.Skip (Left)

ENTER Play/Pause (Enter)

DEMO MODE Main set “VOL MIN” (volume minimum state) + Main set ‘F’ (Function)

for 7 seconds.

WIRELESS FACTORY Main set “VOL MIN” (volume minimum state) + Remote control ‘Mute’

for 5 seconds.

1-6

1. Version & Option Check

1) Power on.

2) Press main set "-" (volume -) key and remote control " " (Play/Pause) key during 3 seconds.

3) Check MCS version.

Ex)

4) Press remote control (" ") key 1 time.

Check Wireless Tx version.

Ex)

5) Press remote control (" ") key 1 time.

Check Wireless Rx version.

It’s possible to connect wireless subwoofer.

Ex)

6) Press remote control (" ") key 1 time.

Check EQ version.

Ex)

7) Press remote control (" ") key 1 time.

Check option.

Press remote control " "/ " "/ " " key.

Previous / Next option.

Ex)

8) Power cord unplug.

2. EEPROM Initialize

1) Power on.

2) Press main set “-” (volume -) key and remote control “SOUND EFFECT” during 3 seconds.

3) Display VFD “E2P CLR”.

4) Power off automatically.

5) Power cord unplug.

MCS / EQ HIDDEN KEY GUIDE

P1411182

TX150303

RX000000

Q1411170

OP00-00

1-7

1. Preparation

- Remote control.

- Do format USB Memory to FAT32 File system.

- USB : Update ﬁle exist only in the USB Memory stick.

Ex ) LAS550H :

MCS E:\PG540_FW_LAS550H_Ver.bin (if USB driver is E:\)

EQ E:\EQ_PRG.BIN (if USB driver is E:\)

Wireless Tx E:\WIRELESS_TX_150011.bin (if USB driver is E:\)

Wireless Rx E:\WIRELESS_RX_150303.bin (if USB driver is E:\)

2. Update

1) Power on.

2) Change the USB function.

3) Insert USB.

4) Display in VFD.

MCS : “MCS UP” “FINISH” Power off.

EQ : “EQ UP” “FINISH” Power off.

Wireless Tx : “UPDATE” “WR XX”(Progress) “FINISH” Power off.

Wireless Rx : “UPDATE” “SEND XX”(Progress) “FINISH” Power off.

5) Loading is shown while updating.

Never remove USB or AC cord.

6) After update ﬁnish, show FINISH in VFD and power of automatically.

7) Power cord un-plug.

MCS / EQ PROGRAM UPDATE GUIDE



1-8

SPECIFICATIONS

• GENERAL

Power requirements Refer to the main label on the unit.

Power consumption Refer to the main label on the unit.

Networked standby : 2.3 W (If all network ports are activated.)

Dimensions (W x H x D) 890 mm x 55 mm x 89 mm

Net Weight (Approx.) 2.72 kg

Operating temperature 5 °C to 35 °C

Operating humidity 5 % to 90 %

• INPUT/OUTPUT

OPT. IN 3 V (p-p), Optical jack x 1

PORT. IN 0.5 Vrms (3.5 mm stereo jack) x 1

HDMI IN 19 Pin (Type A, HDMI™ connector) x 1

HDMI OUT 19 Pin (Type A, HDMI™ connector) x 1

Available Digital Input Audio

Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 96 kHz

• USB

Version 2.0

Bus Power Supply 5 V 500 mA

• AMPLIFIER

Total 220 W

Front Middle/ Tweeter 40 W x 2 (4 Ωat 1 kHz) / 20 W x 2 (8 Ωat 12 kHz)

Subwoofer 100 W (6 Ωat 80 Hz)

THD 10 %

• WIRELESS SUBWOOFER

Power requirements Refer to the main label on the unit.

Power consumption Refer to the main label on the unit.

Type 1 Way 1 Speaker

Impedance 6Ω

Rated Input Power 100 W

Max. Input Power 200 W

Dimensions (W x H x D) 171 mm x 350 mm x 261mm

Net Weight (Approx.) 3.9 kg

• BLUETOOTH

Codec SBC

•Designs and specifications are subject to change without prior notice.

2-1

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

EXPLODED VIEWS ........................................................................................................................................... 2-3

1. MAIN SET SECTION ................................................................................................................................ 2-3

2. WIRELESS SUBWOOFER SECTION...................................................................................................... 2-5

3. PACKING ACCESSORY SECTION ......................................................................................................... 2-7