LG SJ7 Bedienungsanleitung

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”

IN THIS MANUAL.

CONFIDENTIAL

MODEL: SJ7 (SJ7, SJ7-C, SPJ8B-W)

P/NO : AFN78037574 JULY, 2017

MODEL: SJ7

(SJ7, SJ7-C, SPJ8B-W)

Only for training and service purposes.

Wireless Sound Bar

1-1

Only for training and service purposes.

CONTENTS

SECTION 1 ........ GENERAL

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

SECTION 3 ........ ELECTRICAL

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

1-2

Only for training and service purposes.

SECTION 1

GENERAL

CONTENTS

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

NAME OF EACH COMPONENT ....................................................................................................................... 1-4

PAIRING GUIDE ................................................................................................................................................ 1-5

SECONDARY UNIT CONNECTION.................................................................................................................. 1-6

WIRELESS SUBWOOFER CONNECTION....................................................................................................... 1-7

HIDDEN KEY MODE ......................................................................................................................................... 1-8

FIRMWARE UPDATE GUIDE ........................................................................................................................... 1-9

SPECIFICATIONS ........................................................................................................................................... 1-14

1-3

Only for training and service purposes.

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

Only for training and service purposes.

NAME OF EACH COMPONENT

• Front/Side panel

• Rear Panel

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F"Qzshynts-:^jqjhyxymjkzshyntsfsinsuzy

xtzwhj/

1(Standby)

BT"[qf~&[fzxj-:

- ^yfwyxtwufzxjxuqf~gfhpnsymjBluetooth

kzshynts/"^Z`YOML]tw]PL]zxfljrtij-

- ^yfwyxtwufzxjxuqf~gfhptk^jhtsifw~zsny/

"[Z]_LMWPzxfljrtij-

- [wjxxytxjqjhyBluetoothkzshynts/

"^Z`YOML]tw]PL]zxfljrtij-

- [wjxxfsimtqiythtssjhyfstymjwMqzjyttym

ij{nhj/"[Z]_LMWPzxfljrtij-

o/p"atqzrj-:Liozxyx{tqzrjqj{jq

WPOnsinhfytw"NtssjhyntsWPO-

Onxuqf~|nsit|

AOPTICAL IN : Zuynhfqnsuzy

USB (SERVICE ONLY) : ^&bit|sqtfi

htssjhytw

DC IN : LNfifuyjwnsuzy

BHDMI IN / OUT (TV ARC) : SOXTnsuzy&tzyuzy/

C`xfljXtij^|nyhm : ^jqjhyxzxfljrtij/

DDC IN : LNfifuyjwnsuzy

USB (SERVICE ONLY) : ^&bit|sqtfi

htssjhytw

PAIRING : Ntssjhyx[wnrfw~zsnyfsi^jhtsifw~

zsny/"]PL]0^Z`YOML]zxfljrtijtsq~-

EBattery LED

[wnrfw~zsny ^jhtsifw~zsny

1-5

Only for training and service purposes.

How to pairing in a store

When you displaying several SET in the store not one SET, you should turn on the SET one by one.

If not, it can be paired with other SET. If you did but SET paired with other SET, please following below step.

1) Turn off all set except the set to be paired.

2) Turn off the Primary unit to be paired.

3) Turn on the Secondary unit to be paired.

4) Press PAIRING button on the rear of the Secondary unit.

The white LED on the front of Secondary unit blinks.

5) Turn on the Primary unit to be paired.

6) If Pairing is completed. The white LED on the front of Secondary unit turns on.

7) Pair other SETS in the same way.

PAIRING GUIDE

1-6

Only for training and service purposes.

SECONDARY UNIT CONNECTION

LED indicator of Secondary unit

You can check the connected status of Primary unit

and Secondary unit by LED indicator of Secondary

unit.

LED Color Status

White (Blink)

Attempting to make connection.

White The connection is completed.

Red

The Secondary unit is in

standby mode or the connection

is failed.

Connecting the Primary unit and

Secondary unit

1. Connect the power cord to the Primary unit and

plug the power cord into a power outlet.

2. Turn on the Primary unit by pressing .

3. Turn on the Secondary unit by switching the

Usage Mode Switch to REAR or SOUND BAR.

4. The Primary unit and Secondary unit will be

automatically connected.

- When this unit is successfully connected,

SOUND BAR or REAR appears in the display

window of Primary unit.

- White LED on the front of Secondary unit turns on.

Note

If the connection is failed or disconnected, the LED

indicator turns on red.

Manually pairing Secondary unit

When the pairing operate abnormally, you can check

red LED on the Secondary unit and the Secondary

unit does not make sound. To solve the problem,

follow the steps below.

1. Turn off the Primary unit.

Press PAIRING button on the rear of the Secondary

unit.

- The white LED on the front of the Secondary unit

blinks.

3. Turn on the Primary unit.

4. Pairing is completed.

- The white LED on the front of the Secondary unit

turns on.

Note

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

Primary unit and the Secondary unit.

to communicate

with each other and make sounds.

•The closer the Primary unit and the Secondary unit.,

the better sound quality. It is recommended to install

the Primary unit and the Secondary unit as close as

possible and avoid the cases below.

- There is an obstacle between the Primary unit and

the Secondary unit.

- There is an device using same frequency with this

wireless connection such as a medical equipment,

a microwave or a wireless LAN device.

- Keep the Primary unit and Secondary unit away

from the device (ex. wireless router, microwave

oven, etc.) over 1m (3 feet). to prevent wireless

interference.

1-7

Only for training and service purposes.

WIRELESS SUBWOOFER CONNECTION

LED indicator of wireless subwoofer

LED Color Status

Green (Blink)

Attempting to make connection.

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 to the subwoofer and plug

the power cord into a power outlet.

Turn on the Primary unit : The sound bar and wireless

subwoofer will be automatically connected.

Green LED on the rear of wireless subwoofer turns on.

Manually pairing wireless subwoofer

When your connection is not completed, you can

check red LED on the wireless subwoofer and the

wireless subwoofer does not make sound. To solve

the problem, follow the steps below.

1. Press Pairing button on the rear of the wireless

subwoofer.

The green LED on the rear of the wireless subwoofer

blinks quickly.

2. Turn on the Primary unit.

3. Pairing is completed.

The green LED on the rear of the wireless subwoofer

turns on.

Note

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

Primary unit and the subwoofer to communicate with

each other and make sounds.

•The closer the Primary unit and the subwoofer, the

better sound quality. It is recommended to install the

Primary unit and the subwoofer as close as possible

and avoid the cases below.

- There is an obstacle between the Primary unit and

the subwoofer.

- There is an device using same frequency with this

wireless connection such as a medical equipment,

a microwave or a wireless LAN device.

- Keep the sound bar and the subwoofer away from

the device (ex. wireless router, microwave oven,

etc.) over 1m (3 feet). to prevent wireless interference.

1-8

Only for training and service purposes.

Unit HIDDEN MODE KEYS

Primary

VERSION CHECK

Primary unit ‘Volume -’ + Remote control ‘Play/Pause’ for more than 3 seconds.

Next : Forward Skip / Previous : Backward Skip

Exit : Power off

Initialize Primary unit ‘Volume -’ + Remote control ‘SOUND EFFECT’ for more than 3 seconds.

Display window : “E-CLR”

Demo Mode (Play) Enter : Primary unit ‘F’ (Function) for 5 seconds.

Exit : Primary unit ‘F’ (Function) for 5 seconds.

Wireless Factory Primary unit “MIN” (volume minimum state) + Remote control ‘(Mute)’ for about 3 seconds.

Display window : “SUB-WF RESET”

USB Mode Primary unit ‘Volume -’ + Remote control ‘Volume +’ for more than 3 seconds.

Secondary

Initial & Version Check

Install BT_version_check_1.03_160825.apk Android phone.

Start Version Check App. It’s able to Version Check and initialized.

Move switch to Off Mode in Power plug out condition.

Wireless Factory Press PAIRING button on the rear of the Secondary unit.

Front LED : Blink with white color

USB Mode

Plug in the power cord and connect the power cord to Secondary unit.

Turn on the Secondary unit by switching the usage mode switch to SOUND BAR.

Press “PLAY/PAUSE” key for 3secs to change USB function.

Battery LED : Blink with amber color

HIDDEN KEY MODE

1-9

Only for training and service purposes.

FIRMWARE UPDATE GUIDE

1. Preparation

1) SJ7 Units (Primary Unit, Secondary Unit,

Wireless Subwoofer Unit)

2) SJ7 RCU

3) USB Memory

4) Android Device with “Version Check APP”

If any module of primary unit is updated

If any module of secondary unit is updated

If wireless subwoofer rx module of primary unit

is updated

<RCU>

If any module of primary unit is updated

Necessary

“Version Check APP” must be installed

If any module of secondary unit is updated

Caution

•Take care not to power off during update

•Do format USB memory before update

(FAT32 ﬁle system)

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