LG SH2 Bedienungsanleitung

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”

IN THIS MANUAL.

Internal Use Only

2.1 ch Sound Bar

MARCH, 2016P/NO : AFN77457385

MODEL: SH2 (SH2, SPH2B-P)

MODEL: SH2

(SH2, SPH2B-P)

1-1

CONTENTS

SECTION 1 ........ GENERAL

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

SECTION 3 ........ ELECTRICAL

SECTION 4 ........ REPLACEMENT PARTS LIST

1-2

SECTION 1

GENERAL

CONTENTS

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

HIDDEN KEY MODE ......................................................................................................................................... 1-4

FIRMWARE UPDATE........................................................................................................................................ 1-5

SPECIFICATIONS ............................................................................................................................................. 1-6

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

HIDDEN KEY MODE

HIDDEN MODE ENTRANCE

KEY

EXIT

KEY DISPLAY RESULT

Version

Check

Front ‘Vol(-)’ +

Remote control

‘STANDARD’

for 3 seconds.

Remote control

‘STANDARD’,

POWER OFF

SW version will be output by voice through Speaker

with below order.

You can select each version by Volume +/- key.

1) DSP

2) CHECKSUM

3) Touch IC

4) EQ

ex)

1) D1512222

2) 4A3B

3) T1507081

4) E1511261

USB SW

update

Front ‘Vol(-)’ +

Remote control

‘Vol(+)’

for 3 seconds.

Remote control

‘F’ (Function),

POWER OFF

Turn on all of

4 white LED

During SW update, 4 white LED will turn on

one by one and circularly.

1-5

1. To update the Firmware

1) Copy the ﬁrmware upgrade ﬁle to a empty USB

device. Make sure the USB device is empty before

transferring the ﬁrmware upgrade ﬁle.

2) Hold the Volume(+) key on the remote control unit

for 3 seconds, while pushing the Volume(-) button on

the main unit. Then, the mode will be changed to the

USB update mode. (see 3). (Do not need to change

the input function on the main unit)

3) When the USB upgrade mode is ready, all the 4

function LED lamps will be on.

4) Plug the USB device into the USB port on the

back side of the main unit. The update process will

be started automatically. (The unit will automatically

reads the ﬁle from the USB device) The progress will

be displayed sequentially on 4 LED lamps on the

main unit. (See the picture of 3)

5) Complete the ﬁrmware update. When the update is

successfully completed, the unit goes into the standby

mode after the automatic reset. When the unit goes

into the standby mode, the red LED lamp will be on.

(Will take about 2 minutes)

2. Urgent Firmware update description

If the function LED lamps are sequentially lighting for

more than 3 minutes, unplug the power. After waiting

all the lamps go off, plug the power again, and then,

the Urgent ﬁrmware update function will automatically

restart the update. After the process will be the same

with 4 above. (The USB device should be remained

on the USB port)

3. How to check the ﬁrmware version

If the main unit is on the stand-by mode, put the pow-

er on with the power button. Hold the "standard" key

on the remote controller for 3 seconds while holding

the Volume(-) button on the main unit. Then, the main

unit mode will be changed into the version-check

mode, and can listen the current version information.

The new ﬁrmware version is "201512222." If the

ﬁrmware version was updated, the main unit will say

D1512222. (20 is omitted, and the letter "D", meaning

of DSP ﬁrmware) Push the "Standard" key once more

when escaping from the version-check mode.

FIRMWARE UPDATE

1-6

SPECIFICATIONS

• GENERAL

Power requirements 120 V ~ 60 Hz

Power consumption 25 W

Networked standby : 0.5 W

(If all network ports are activated.)

Dimensions (W x H x D) Approx. 880 mm x 62 mm x 90 mm

(34.6 inch x 2.4 inch x 3.5 inch)

Net Weight Approx. 1.8 kg (3.9 lb)

Operating temperature 5 °C to 35 °C (41 °F to 95 °F)

Operating humidity 5 % to 90 %

Available Digital Input Audio Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz

Available Digital Input Audio format Dolby Digital, PCM

• INPUTS

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

PORT. IN (Portable in) 2 Vrms (3.5 mm stereo jack) x 1

• AMPLIFIER (RMS OUTPUT POWER)

Total 100 W

Front 25 W x 2 (4 Ωat 1 kHz, THD 10%)

Subwoofer 50 W (4 Ωat 100 Hz, THD 10%)

• SUBWOOFER

Type 1 Way 1 Speaker

Impedance 4 Ω

Rated Input Power 50 W

Max. Input Power 100 W

Dimensions (W x H x D) Approx.156 mm x 300 mm x 281 mm

(6.1 inch x 11.8 inch x 11.0 inch)

Net Weight Approx. 2.9 kg (6.3 lb)

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

2-1

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

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

1. MAIN UNIT SECTION............................................................................................................................... 2-3

2. SUBWOOFER SECTION.......................................................................................................................... 2-7

3. PACKING ACCESSORY SECTION ......................................................................................................... 2-8