LG SoundPlate LAP240 User manual

4102,APRIL65129567NFA:ON/P
4.1ch Base Speaker
SERVICE MANUAL
MODEL: LAP240
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
Website http://biz.lgservice.com
Internal Use Only
MODEL: LAP240SERVICE MANUAL

1-1
CONTENTS
SECTION 1 ........ GENERAL
SECTION 2 ........ CABINET & MAIN CHASSIS
SECTION 3 ........ ELECTRICAL
SECTION 4 ........ REPLACEMENT PARTS LIST

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SECTION 1
GENERAL
CONTENTS
ESD PRECAUTIONS ....................................................................................................................................... 1-3
SOFTWARE UPDATE METHOD.................................................................................................................... 1-4
SOFTWARE DOWNLOAD .............................................................................................................................. 1-5
1. CONNECTION OF THE JIG ..................................................................................................................... 1-5
2. SOFTWARE DOWNLOAD........................................................................................................................ 1-8
SPECIFICATIONS.......................................................................................................................................... 1-17

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
• USB update
Micom_LAP240_XXXXXXX.HEX is an update file for IO MICOM Software.
DSP_LAP240_XXXXXXX.ROM is an update file for Main/DSP Software.
EQ_PRG.BIN is an update file for EQ Software.
Step 1 : Creating a Firmware Update Device
You can create a firmware update files on your USB memory device (FAT32).
To create a firmware update in a USB memory device, copy the update file to the USB device.
Preparation: The USB memory device should have at least 2MB of free space to save the firmware update files.
1) Insert a USB memory device into the PC.
2) Copy the latest version of firmware update files to the USB drive.
(You do not need to create directory, the files will be saved in the root directory.)
3) It is impossible to multiple update at same time.
(It can’t select update file. But, it has an update priority. An update priority is as follows. <DSP, IO MICOM, EQ Bin>)
Step 2 : Updating the speaker bar
If you copy a update file to an USB memory, you can update.
1) Turn on the speaker bar and move to USB function with FLD jig.
2) Insert USB memory that contains the update file of the latest firmware version into the speaker bar.
- Insert the USB memory device to the USB port on the right side of the speaker bar.
3-1) If you insert an USB memory that contains the IO MICOM update file, it displays “MICOM UP” on FLD.
And it starts IO MICOM update. Updating IO MICOM Software will take about 2 minutes.
3-2) If you insert an USB memory that contains the DSP update file, it displays “DSP UP”on FLD.
And it starts DSP update. Updating DSP Software will take about 1 minutes.
3-3) If you insert an USB memory that contains the EQ Binary update file, it displays “EQ UP” on FLD.
And it starts Touch key update. Updating Touch key Software will take about 1 minute.
CAUTION: Do not turn off the power during firmware update.
4) After update, it turns off power automatically.
5) Turn the power back on. The system now operates with the new version.
SOFTWARE UPDATE METHOD

1-5
SOFTWARE DOWNLOAD
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1) Insert the jig cable in CN903.
1. CONNECTION OF THE JIG
2) After inserting the jig cable to CN903.
Note) Be careful of the direction of cable when insert the jig cable in CN903 of display jig.

1-6
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3) Please insert of another side of jig cable at the
back of main set.
* Be careful of the direction of cable

1-7
4-1) Insert the power cord at the back of the main
set.
4-2) Power on the sound plate and you can see
massage of the display jig.
If display jig does not display anything,
please check the connection of display jig
and cable and main set again.

1-8
2. SOFTWARE DOWNLOAD
2-1. Micom Download
1) Insert the USB memory in display jig.
* Micom file must be inside of USB memory.
2) Push continually the “-” button at the back
side of main set and push continually the
“Bluetooth” button of remote control until
“USB” massage diplayed in the display jig.
Take your finger off “Bluetooth” button first
and then take your finger off “-” button.

1-9
3) After “USB” display, “SER” will be display.
4) “MICO” display during update.
It will take less then 5 minute.
5) After update, display jig and main set will be
power off.

1-10
2-2. DSP Download
After micom update, please remove USB memory.
1) Power on the main set again.
2) Power on the sound plate and you can see
massage of the display jig.
If display jig does not display anything,
please check the connection of display jig
and cable and main set again.

1-11
3) Insert the USB memory in display jig.
* DSP file must be inside of USB memory.
4) Push continually the “-” button at the back
side of main set and push continually the
“Bluetooth” button of remote control until
“USB” massage diplayed in the display jig.
Take your finger off “Bluetooth” button first
and then take your finger off “-” button.

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5) After “USB” display, “SER” will be display.
6) “DSP” display during update.
7) After “DSP” display, “FLAS” display during
update.
It will take less then 5 minute.

1-13
8) After update, display jig and main set will be
power off.

1-14
2-3. EQ Download
After DSP update, please remove USB memory.
1) Power on the main set again.
2) Power on the sound plate and you can see
massage of the display jig.
If display jig does not display anything,
please check the connection of display jig
and cable and main set again.

1-15
3) Insert the USB memory in display jig.
* EQ file must be inside of USB memory.
4) Push continually the “-” button at the back
side of main set and push continually the
“Bluetooth” button of remote control until
“USB” massage diplayed in the display jig.
Take your finger off “Bluetooth” button first
and then take your finger off “-” button.

1-16
5) After “USB” display, “SER” will be display.
6) “EQ” display during update.
It will take less then 1 minute.
7) After update, display jig and main set will be
power off.
After update, please remove the display jig
and cable from main set.

1-17
SPECIFICATIONS
• GENERAL
Power requirements Refer to the main label on the unit.
Power consumption Refer to the main label on the unit.
Dimensions (W x H x D) (700 x 38.5 x 320) mm (With foot)
Net Weight (Approx.) 3.8 kg
Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity 5 % to 90 %
• INPUTS
DIGITAL IN (OPTICAL IN) 3.3 V (p-p), Optical jack
Available Digital Input Audio Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 96 kHz
• AMPLIFIER
Total output 100 W
Stereo mode 20 W x 2 (8 Ωat 1 kHz)
Surround mode 20 W x 2 (8 Ωat 1 kHz)
Built-In subwoofer 40 W (4 Ωat 100 Hz)
THD 0.1 %
• Designs and specifications are subject to change without prior notice.

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MEMO

2-1
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
DISASSEMBLY INSTRUCTIONS................................................................................................................... 2-3
EXPLODED VIEWS ......................................................................................................................................... 2-7
1. CABINET AND MAIN FRAME SECTION (LAP240)................................................................................. 2-7
2. PACKING ACCESSORY SECTION ....................................................................................................... 2-11