LG NB-3540 Service Manual

MODEL: NB3540 (NB3540, S34A2-D)SERVICE MANUAL

Internal Use Only

Website http://biz.lgservice.com

Sound Bar System

SERVICE MANUAL

MODEL: NB3540

P/NO : AFN76793810 AUGUST, 2014

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.

(NB3540, S34A2-D)

CONTENTS

SECTION 1 ........ GENERAL

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

SECTION 3 ........ ELECTRICAL

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

1-1

SECTION 1

GENERAL

CONTENTS

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

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

SOFTWARE UPDATE METHOD .................................................................................................................... 1-5

SERVICE INFORMATION FOR EEPROM .................................................................................................... 1-6

SPECIFICATIONS ............................................................................................................................................ 1-7

1-2

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.

1-3

HIDDEN KEY MODE

• Status: Power ON

HIDDEN MODE ENTRANCE KEY EXIT KEY DISPLAY RESULT

1) ESS(DSP)

2) Touch Key

3) Wireless SPK
module TX

4) Wireless SPK
module RX

5) EQ

6) EEPROM option
value (on Scroll)

Version Check

EEPROM INITIAL

EEPROM EDIT

Wireless Factory
Reset

Wireless SPK RF
change

Clip Off

Monitoring
Changed Gain
at Clip ON

CLIP Algorithm Edit

MAX Volume Edit

APD On/Off

Front 'Vol-' + RMC

Play for 3sec

Front 'Vol-' + RMC '0'

for 3sec

Front 'Vol-' + RMC '2'

for 3sec

Set volume "VOL MIN"

+ RMC 'mute' for 3sec

Front 'Vol-' + RMC '4'

for 3sec

Front 'Vol-' + RMC '8'

for 3sec

Front 'Vol-' + RMC '8'

for 3sec

Front 'Vol-' + RMC '9'

for 3sec

Front Stop + RMC

'Sleep' for 3sec

Front 'Vol-' + RMC '3'

for 3sec

E1311050
T1311050

POWER OFF

auto exit "E2P CLEAR" EEPROM initializing

Toggling "OP0-10" Edit Micom option

- "W RESET" -

-- -

Toggling "CLIP OFF" -

Toggling 00 00 -

-- -

Toggling MVOL-XX -

Toggling APD ON / APD OFF APD ON/OFF

TX 053
RX 156
Q1311050
01 E1 00 30 11

1-4

SOFTWARE UPDATE METHOD

USB update for NB5540/4540/3540

DSP_NB5540.rom is an update fi le for NB5540 Main/DSP software.
DSP_NB4540.rom is an update fi le for NB4540 Main/DSP software.
DSP_NB3540.rom is an update fi le for NB3540 Main/DSP software.

EQ_PRG_NB5540.bin is an update fi le for NB5540 EQ software.
EQ_PRG_NB4540.bin is an update fi le for NB4540 EQ software.
EQ_PRG_NB3540.bin is an update fi le for NB3540 EQ Software.

WIRELESS_TX.bin is an update fi le for Wireless TX(MAIN SET) software.

WIRELESS_RX.bin is an update fi le for Wireless TX(Woofer) software.

Step 1 : Creating a Firmware Update Device

You can create a fi rmware update fi les on your USB memory device(FAT32).
To create a fi rmware update in a USB memory device, copy the update fi le to the USB device.

Preparation:

1. Insert a USB memory device into the PC.

2. Copy the latest version of fi rmware update fi les to the USB drive.
(You do not need to create directory, the fi les will be saved in the root directory.)

3. It is impossible to multiple update at same time. (It can’t select update fi le. But, it has an update priority.
An update priority is as follows. <DSP, Wireless RX, Wireless TX, EQ>)

The USB memory device should have at least 2 MB of free space to save the fi rmware update fi les.

Step 2 : Updating the speaker bar(NB5540/4540/3540)

If you copy a update fi le to an USB memory, you can update.

1. Turn on the speaker bar and move to USB function.

2. Insert USB memory that contains the update fi le of the latest fi rmware version into the speaker bar.

- Insert the USB memory device to the USB port of the speaker bar.
3-1. If you insert an USB memory that contains the DSP update fi le, it displays “DSP UP” on FLD.
And it starts DSP update. Updating DSP Software will take about 1 minutes.
3-2. If you insert an USB memory that contains the EQ update fi le, it displays “EQ UP” on FLD.
And it starts EQ update. Updating EQ Software will take about 3 ~ 5 sec.
3-3. If you insert an USB memory that contains the WIRELESS TX update fi le, it displays “UPDATE” on FLD.
WR“00”indicates a progress percentage. And it starts Wireless TX update.
Updating Wireless TX Software will take about 2 minutes.
3-4. If you insert an USB memory that contains the WIRELESS RX update fi le, it displays “UPDATE” on FLD.
SEND “00” indicates a progress percentage. And it starts Wireless RX update.
Updating Wireless RX Software will take about 2 minutes.

CAUTION : Do not turn off the power during fi rmware update.

4. After update, it turns off power automatically.

5. Disconnect the power cord of the main unit and the wireless subwoofer.
and connect them again after the LED of the main unit and the wireless subwoofer is fully turned off.

6. The system now operates with the new version.

1-5

SERVICE INFORMATION FOR EEPROM

• FACTORY RESET: SET(“VOL-” KEY) + REMOCON “2”

[ AUDIO MICOM OPTION CODE SETTING ]

SET(“VOL-” KEY) + REMOCON “2” (MORE THAN 5 SECONDS) Ö CHANGE OPTION CODE WITH THE
ARROW KEY (REPEAT, PLAY/PAUSE, SKIP KEY) AND PRESS REMOCON STOP KEY Ö SET(“VOL-” KEY)
+ REMOCON “2” Ö COMPLETED.

1-6

SPECIFICATIONS

• GENERAL (NB3540)

AC adapter requirements 100 - 240 V ~ 50 / 60 Hz, 25 V 2 A
Power consumption 27 W
Dimensions (W x H x D) (770 x 35 x 75) mm
Net Weight (Approx.) 1.3 kg
Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity 5 % to 90 %

• INPUT/OUTPUT

OPTICAL IN 3 V (p-p), Optical jack x 1
PORT. IN 0.5 Vrms (3.5 mm stereo jack) x 1
Available Digital Input Audio Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 96 kHz

• USB

Version 1.1
Bus Power Supply 5 V 500 mA

• AMPLIFIER

Total 320 W
Front 80 W x 2 (4 Ω at 1 kHz)
Subwoofer 160 W (3 Ω at 80 Hz)
THD 10 %

• WIRELESS SUBWOOFER (S34A2-D)

Power requirements 100 - 240 V ~ 50 / 60 Hz
Power consumption 40 W
Type 1 Way 1 Speaker
Impedance 3 Ω
Rated Input Power 160 W
Max. Input Power 320 W
Dimensions (W x H x D) (170 x 360 x 316) mm
Net Weight (Approx.) 5.55 kg

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

1-7

MEMO

1-8

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

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

1. RECEIVER BAR SECTION (NB3540) ...................................................................................................... 2-3

2. WIRELESS SUBWOOFER SECTION (S34A2-D) .................................................................................... 2-5

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

2-1

MEMO

2-2

CONTENTS

SECTION 1 ........ GENERAL

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

SECTION 3 ........ ELECTRICAL

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

1-1

SECTION 1

GENERAL

CONTENTS

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

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

SOFTWARE UPDATE METHOD .................................................................................................................... 1-5

SERVICE INFORMATION FOR EEPROM .................................................................................................... 1-6

SPECIFICATIONS ............................................................................................................................................ 1-7

1-2

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.

1-3

HIDDEN KEY MODE

• Status: Power ON

HIDDEN MODE ENTRANCE KEY EXIT KEY DISPLAY RESULT

1) ESS(DSP)

2) Touch Key

3) Wireless SPK
module TX

4) Wireless SPK
module RX

5) EQ

6) EEPROM option
value (on Scroll)

Version Check

EEPROM INITIAL

EEPROM EDIT

Wireless Factory
Reset

Wireless SPK RF
change

Clip Off

Monitoring
Changed Gain
at Clip ON

CLIP Algorithm Edit

MAX Volume Edit

APD On/Off

Front 'Vol-' + RMC

Play for 3sec

Front 'Vol-' + RMC '0'

for 3sec

Front 'Vol-' + RMC '2'

for 3sec

Set volume "VOL MIN"

+ RMC 'mute' for 3sec

Front 'Vol-' + RMC '4'

for 3sec

Front 'Vol-' + RMC '8'

for 3sec

Front 'Vol-' + RMC '8'

for 3sec

Front 'Vol-' + RMC '9'

for 3sec

Front Stop + RMC

'Sleep' for 3sec

Front 'Vol-' + RMC '3'

for 3sec

E1311050
T1311050

POWER OFF

auto exit "E2P CLEAR" EEPROM initializing

Toggling "OP0-10" Edit Micom option

- "W RESET" -

-- -

Toggling "CLIP OFF" -

Toggling 00 00 -

-- -

Toggling MVOL-XX -

Toggling APD ON / APD OFF APD ON/OFF

TX 053
RX 156
Q1311050
01 E1 00 30 11

1-4

SOFTWARE UPDATE METHOD

USB update for NB5540/4540/3540

DSP_NB5540.rom is an update fi le for NB5540 Main/DSP software.
DSP_NB4540.rom is an update fi le for NB4540 Main/DSP software.
DSP_NB3540.rom is an update fi le for NB3540 Main/DSP software.

EQ_PRG_NB5540.bin is an update fi le for NB5540 EQ software.
EQ_PRG_NB4540.bin is an update fi le for NB4540 EQ software.
EQ_PRG_NB3540.bin is an update fi le for NB3540 EQ Software.

WIRELESS_TX.bin is an update fi le for Wireless TX(MAIN SET) software.

WIRELESS_RX.bin is an update fi le for Wireless TX(Woofer) software.

Step 1 : Creating a Firmware Update Device

You can create a fi rmware update fi les on your USB memory device(FAT32).
To create a fi rmware update in a USB memory device, copy the update fi le to the USB device.

Preparation:

1. Insert a USB memory device into the PC.

2. Copy the latest version of fi rmware update fi les to the USB drive.
(You do not need to create directory, the fi les will be saved in the root directory.)

3. It is impossible to multiple update at same time. (It can’t select update fi le. But, it has an update priority.
An update priority is as follows. <DSP, Wireless RX, Wireless TX, EQ>)

The USB memory device should have at least 2 MB of free space to save the fi rmware update fi les.

Step 2 : Updating the speaker bar(NB5540/4540/3540)

If you copy a update fi le to an USB memory, you can update.

1. Turn on the speaker bar and move to USB function.

2. Insert USB memory that contains the update fi le of the latest fi rmware version into the speaker bar.

- Insert the USB memory device to the USB port of the speaker bar.
3-1. If you insert an USB memory that contains the DSP update fi le, it displays “DSP UP” on FLD.
And it starts DSP update. Updating DSP Software will take about 1 minutes.
3-2. If you insert an USB memory that contains the EQ update fi le, it displays “EQ UP” on FLD.
And it starts EQ update. Updating EQ Software will take about 3 ~ 5 sec.
3-3. If you insert an USB memory that contains the WIRELESS TX update fi le, it displays “UPDATE” on FLD.
WR“00”indicates a progress percentage. And it starts Wireless TX update.
Updating Wireless TX Software will take about 2 minutes.
3-4. If you insert an USB memory that contains the WIRELESS RX update fi le, it displays “UPDATE” on FLD.
SEND “00” indicates a progress percentage. And it starts Wireless RX update.
Updating Wireless RX Software will take about 2 minutes.

CAUTION : Do not turn off the power during fi rmware update.

4. After update, it turns off power automatically.

5. Disconnect the power cord of the main unit and the wireless subwoofer.
and connect them again after the LED of the main unit and the wireless subwoofer is fully turned off.

6. The system now operates with the new version.

1-5

SERVICE INFORMATION FOR EEPROM

• FACTORY RESET: SET(“VOL-” KEY) + REMOCON “2”

[ AUDIO MICOM OPTION CODE SETTING ]

SET(“VOL-” KEY) + REMOCON “2” (MORE THAN 5 SECONDS) Ö CHANGE OPTION CODE WITH THE
ARROW KEY (REPEAT, PLAY/PAUSE, SKIP KEY) AND PRESS REMOCON STOP KEY Ö SET(“VOL-” KEY)
+ REMOCON “2” Ö COMPLETED.

1-6

SPECIFICATIONS

• GENERAL (NB3540)

AC adapter requirements 100 - 240 V ~ 50 / 60 Hz, 25 V 2 A
Power consumption 27 W
Dimensions (W x H x D) (770 x 35 x 75) mm
Net Weight (Approx.) 1.3 kg
Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity 5 % to 90 %

• INPUT/OUTPUT

OPTICAL IN 3 V (p-p), Optical jack x 1
PORT. IN 0.5 Vrms (3.5 mm stereo jack) x 1
Available Digital Input Audio Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 96 kHz

• USB

Version 1.1
Bus Power Supply 5 V 500 mA

• AMPLIFIER

Total 320 W
Front 80 W x 2 (4 Ω at 1 kHz)
Subwoofer 160 W (3 Ω at 80 Hz)
THD 10 %

• WIRELESS SUBWOOFER (S34A2-D)

Power requirements 100 - 240 V ~ 50 / 60 Hz
Power consumption 40 W
Type 1 Way 1 Speaker
Impedance 3 Ω
Rated Input Power 160 W
Max. Input Power 320 W
Dimensions (W x H x D) (170 x 360 x 316) mm
Net Weight (Approx.) 5.55 kg

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

1-7

MEMO

1-8

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

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

1. RECEIVER BAR SECTION (NB3540) ...................................................................................................... 2-3

2. WIRELESS SUBWOOFER SECTION (S34A2-D) .................................................................................... 2-5

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

2-1

MEMO

2-2

E

D

C

A

H

B

E

D

G

H

C

A

B

G

F

F

256

A44B

A44C

A44A

258

258

263

258

258

457

457

464

251

A46

A42

A43

464

464

464

464

A52

A55

261

262

260

263

464

A54

457

CABLE5

CABLE1

CABLE2

CABLE7

CABLE3

FRONT

WIRELESS

B/T

KEY

259

EXPLODED VIEWS

1. RECEIVER BAR SECTION (NB3540)

B

C

E

B

C

D

D

SMPS

953

F

E

WIRELESS

955

953

953

951

953

953

AMP

A47W

A

A

952

954

954

954

954

A54W

A45W

A900

KEY

F

300W

2. WIRELESS SUBWOOFER SECTION (S34A2-D)

NOTES) THE EXCLAMATION POINT WITHIN AN

EQUILATERAL TRIANGLE IS INTENDED
TO ALERT THE SERVICE PERSONNEL
TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION IN SERVICE
LITERATURE.

511 Screws (2)

300 Po wer cord

806 Op tical Cable

900 Remote control

3. PACKING ACCESSORY SECTION

801 Owner’s manual

820A USB gender

833 AC adapter

808 Batteries

829 Cable ties (2)

835 Wall bracket (2)

803 Packing

802 Box

804 Bag

803 Packing

MEMO

2-8

SECTION 3

ELECTRICAL

CONTENTS

ONE POINT REPAIR GUIDE .......................................................................................................................... 3-2

1. NO POWER PROBLEM (25 VA) ............................................................................................................ 3-2

2. POWER ON ERROR .............................................................................................................................. 3-3

3. NO SOUND (PORTABLE FUNCTION) .................................................................................................. 3-5

4. NO WIRELESS ....................................................................................................................................... 3-6

5. NO BLUETOOTH .................................................................................................................................... 3-7

6. NO SOUND (USB) .................................................................................................................................. 3-8

7. NO SOUND (OPTICAL) .......................................................................................................................... 3-9

WAVEFORMS OF MAJOR CHECK POINT ................................................................................................ 3-10

1. SYSTEM PART-1 (X-TAL) .................................................................................................................... 3-10

2. SYSTEM PART-2 (FLASH) .................................................................................................................. 3-11

3. SYSTEM PART-3 (EEPROM) .............................................................................................................. 3-12

4. SYSTEM PART-4 (USB) ....................................................................................................................... 3-13

5. SYSTEM PART-5 (TACT KEY) ............................................................................................................ 3-14

6. SYSTEM PART-6 (REMOCON) ........................................................................................................... 3-16

7. SYSTEM PART-7 (OPTICAL) ............................................................................................................... 3-17

WIRING DIAGRAM ........................................................................................................................................ 3-19

BLOCK DIAGRAM ......................................................................................................................................... 3-21

CIRCUIT DIAGRAMS .................................................................................................................................... 3-23

1. MAIN - DSP CIRCUIT DIAGRAM ......................................................................................................... 3-23

2. MAIN - AMP CIRCUIT DIAGRAM......................................................................................................... 3-25

3. MAIN - POWER CIRCUIT DIAGRAM ................................................................................................... 3-27

4. FRONT CIRCUIT DIAGRAM ................................................................................................................ 3-29

5. TACT KEY CIRCUIT DIAGRAM ........................................................................................................... 3-31

6. WOOFER SMPS CIRCUIT DIAGRAM ................................................................................................. 3-33

7. WOOFER AMP CIRCUIT DIAGRAM .................................................................................................... 3-35

8. WOOFER KEY CIRCUIT DIAGRAM .................................................................................................... 3-37

CIRCUIT VOLTAGE CHART ........................................................................................................................ 3-39

PRINTED CIRCUIT BOARD DIAGRAMS .................................................................................................... 3-43

1. MAIN P. C. BOARD .............................................................................................................................. 3-43

2. FRONT P. C. BOARD ........................................................................................................................... 3-45

3. TACT KEY P. C. BOARD ..................................................................................................................... 3-45

4. WOOFER SMPS P. C. BOARD ............................................................................................................ 3-47

5. WOOFER AMP P. C. BOARD .............................................................................................................. 3-49

6. WOOFER KEY P. C. BOARD ............................................................................................................... 3-51

7. WOOFER LED P. C. BOARD ............................................................................................................... 3-51

3-1

ONE POINT REPAIR GUIDE

1. NO POWER PROBLEM (25 VA)

No power problem occurs when you power on the unit

1-1. Solution

Replace the fuse F600 or F601.

1-2. How to troubleshoot (Countermeasure)

1) Change adaptor, replace F601, F602, L632.

1-3. Service hint (Any picture / Remark)

< Main board top view >

3-2

ONE POINT REPAIR GUIDE

2. POWER ON ERROR

No display or Not working.

2-1. IC600

1) Check 3.7 VA at L603.

2) If 3.7 VA is not output, check 25 VA at No.7 Pin of IC600.

3) 1), 2) is OK.  Replace IC600.

L603

IC600

< Main board top view >

2-2. IC505

1) Check 3.3 VA at L514.

2) If 3.3 VA is not output, check 3.7 VA at No.1 & 2 Pin of IC505.

3) 1), 2) is OK.  Replace IC505.

IC505

L514

< Main board bottom view >

3-3

ONE POINT REPAIR GUIDE

2-3. IC605

1) Check 3.3 VA at R644.

2) If 3.3 VA is not output, check 3.7 VA at No.1 Pin of IC605.

3) 1), 2) is OK.  Replace IC605.

R644

IC605

< Main board bottom view >

2-4. IC606

1) Check 3.3 VA at L610.

2) If 3.3 VA is not output, check 3.7 VA at No.1 Pin of IC606.

3) 1), 2) is OK.  Replace IC608.

L610

IC606

< Main board top view >

3-4

ONE POINT REPAIR GUIDE

3. NO SOUND (PORTABLE FUNCTION)

3-1. Solution

Replace IC502 or Portable Jack.

3-2. How to troubleshoot (Countermeasure)

1) Please check the soldering status of portable jack(JK500).

2) Please check pin2, 3(portable L/R signal) of portable jack(JK500).
If you cannot find input signal, replace portable jack(JK500).

3) If you can find input signal, check pin122,123 of IC502.
If you cannot find signal of pin122, 123, re-soldering peripheral parts

4) If you can find signal of pin122, 123, replace IC502.

3-3. Service hint (Any picture / Remark)

(L507, L508, C515, C516, R519, R520).

< Main board top view >

IC502

JK500

< Main board bottom view >

3-5

ONE POINT REPAIR GUIDE

4. NO WIRELESS

4-1. Solution

Replace WIC500 on MAIN bottom board.(No 3.3 V)

4-2. How to troubleshoot (Countermeasure)

1) Please check externally status of Wireless cable connection on your eyes.(at CN506 and Module)

2) Please check 3.3 V of Wireless_3V3 (at WL501).
If 3.3 V is ok at WL501 please check SPI signal (CS, D0, WP, DI, CLK) of WIC500(pin1, 23, 5, 6).

3) If you can’t have no signal, please replace WIC500.

4) If 3) is ok, and S/W update(MAIN, Subwoofer) when set is paired.

4-3. Service hint (Any picture / Remark)

WL501

CN804

< Main board top view >

WIC500

< Main board bottom view >

3-6

ONE POINT REPAIR GUIDE

5. NO BLUETOOTH

5-1. Solution

Replace WIC500 on MAIN bottom board.(No 3.3 V)

5-2. How to troubleshoot (Countermeasure)

1) Please check externally status of Bluetooth cable connection on your eyes.(at CN504 and Module)

2) Please check 3.3V of VD33 (at L509).
If 3.3 V is ok at L509, please check BT_DAT,BT_CLK,BT_RST(pin23, 24, 27) of IC502 and
UART_RX, UART_TX (pin67,68).
If you have no signal, please replace IC502.

5-3. Service hint (Any picture / Remark)

IC502

CN504

< Main board top view >

pj\WY

< Main board bottom view >

3-7

ONE POINT REPAIR GUIDE

6. NO SOUND (USB)

6-1. Solution

Replace IC502 on MAIN bottom board.

6-2. How to troubleshoot (Countermeasure)

1) Please check USB data signal of IC502.(to check R531, R532 have signal)
If you have not data signal, please replace IC502.

6-3. Service hint (Any picture / Remark)

pj\WY

y\ZXSy\ZY

< Main board bottom view >

3-8

ONE POINT REPAIR GUIDE

7. NO SOUND (OPTICAL)

7-1. Solution

Replace IC502 on MAIN bottom board.

7-2. How to troubleshoot (Countermeasure)

1) Please check 3.3 V of 3.3 VA at L511.
If you can check 3.3 V, please confirm OPT_DET signal(R528) when optical mode.

2) In spite of process 1), set has abnormal output, then replace IC502.

7-3. Service hint (Any picture / Remark)

y\Y_

< Main board top view >

pj\WY

< Main board bottom view >

3-9

WAVEFORMS OF MAJOR CHECK POINT

1. SYSTEM PART-1 (X-TAL)

1

FIG 1-1. X500

2

FIG 1-2. X800

3-10

2. SYSTEM PART-2 (FLASH)

3

4

5

}kZZ

jzJ

jsr

kv

6

FIG 2-1.

5

jsr

FIG 2-2.

3-11

3. SYSTEM PART-3 (EEPROM)

7

8

jsr

kh{

FIG 3-1.

3-12

4. SYSTEM PART-4 (USB)

9

10

|ziw

|ziu

FIG 4-1.

11

|zi\}

FIG 4-2.

3-13

5. SYSTEM PART-5 (TACT KEY)

MAIN TACT

12 12

FIG 5-1. Key IDLE (About 4.23 kHz) FIG 5-2. Press Power Key (About 192.63 kHz)

3-14

12 12

FIG 5-3. Press FUNC Key (About 108.89 kHz) FIG 5-4. Press Key + (About 23.74 kHz)

12

FIG 5-5. Press Key – (About 48.39 kHz)

3-15

6. SYSTEM PART-6 (REMOCON)

13

FIG 6-1. REMOCON

3-16

7. SYSTEM PART-7 (OPTICAL)

14

FIG 7-1. SPDIF IN

15

FIG 7-2. OPT_DET

3-17

MEMO

3-18

3-203-19

."*/1$#

'30/51$#

#5.PEVMF

8JSFMFTT

.PEVMF

1)BOOFTT

1''$

1''$

ju\W[ju_W[

qrZW[

64#

41,-

1#UP#

juXW\

5BDU,FZ1$#

41,3

1035"#-&

015

ju^WW

ju^WX

WIRING DIAGRAM

3-223-21

Main SoC

ESS C3+

ES8693

Flash

(2MB)

SPI

Optical

USB

Portable

D+,D-

PTB L / R

SPDIF_IN1 / OPT_DET1

Bluetooth

Module

Wireless

Module

TX

I2C

VFD

(7X5 Dot)

DO/CLK/STB/

UART / RST

Wireless

Module

RX

Wireless

Woofer

MSG_RDY / INT/ MUTE / RST

Flash

CS/DO/DI/CLK/WP

Remocon

EEP

ROM

I2C

STB_LED

AMP_SD

AMP_MUTE/AMP_PDN

2.4GHz

Only

AMP

TAS5612LA

FL

LPF

FR

LPF

FL+/-,FR+/-

POWER/FUNC/VOL+/-

TACT KEY 4EA

BT_I2C

KEY

WL_DI/DO/CLK/ADATA2

27MHZ

Adapter

25V

BLOCK DIAGRAM

3-243-23

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

DSP

EAX65613001_10.1.3_MAIN_SD

2014. 01. 29

CIRCUIT DIAGRAMS

1. MAIN - DSP CIRCUIT DIAGRAM

3-263-25

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

AMP

EAX65613001_10.1.3_MAIN_SD

2014. 01. 29

2. MAIN - AMP CIRCUIT DIAGRAM

3-283-27

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

POWER

EAX65613001_10.1.3_MAIN_SD

2014. 01. 29

3. MAIN - POWER CIRCUIT DIAGRAM

3-303-29

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

FRONT

EAX65594401_10.1.3_FRONT_SD

2014. 01. 29

4. FRONT CIRCUIT DIAGRAM

3-323-31

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

TACT KEY

EAX65577001_10.1.3_KEY_SD

2014. 01. 29

5. TACT KEY CIRCUIT DIAGRAM

3-343-33

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

WF-SMPS

EAX64877702_3.1.0_WF_SMPS_SD

2014. 01. 29

6. WOOFER SMPS CIRCUIT DIAGRAM

3-363-35

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R ST

WF-AMP

EAX65142702_0.1.0_WF_AMP_SD

2014. 01. 29

7. WOOFER AMP CIRCUIT DIAGRAM

3-383-37

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J

WF-KEY

EAX65109301_4.1.4_WF_KEY_SD

2014. 01. 29

8. WOOFER KEY CIRCUIT DIAGRAM

MEMO

Designator Description PIN Voltage Spec

Measured

Voltage

( + ) ( - )

Bluetooth Module,Assembly 1 3.3V±0.3V 3.26 - -

C602 Capacitor,Ceramic,Chip 2 25.5V 25.57 25.54V 0.00V

C743

Capacitor,AL,Chip

2 25.5V 25.56 25.56V 0V

C750 2 25.5V 25.56 25.56V 0V

C751 2 25.5V 25.56 25.56V 0V

C762 2 25.5V 25.57 25.56V 0V

C796 Capacitor,AL,Chip 2 3.3V 3.3 3.3V 0V

CA801 Capacitor,AL,Chip 1 5V 5 5V 0V

CA804

Capacitor,AL,Chip

2 1.8V 1.88 1.88V 0V

CA805 2 1.8V 1.88 1.88V 0V

CA807 Capacitor,AL,Chip 1 1.8V 1.88 1.88V 0V

CN201 Connector,Wafer

3 3.3VA 3.3 - -

9 12V(Vcc) 12.01 - -

10 5V 5.03 - -

CN502 Connector,Wafer

3 3.3VA 3.27 - -

9 12V 12.01 - -

10 5V(USB) 5.03 - -

CN504 Connector,Wafer 1 3.3V(VDD) 3.29 - -

CN804 Connector,FFC/FPC/PIC 26 3.3VA 3.3 - -

DIG200 VFD, Display

1,2~37,38 2.03V~2.48V 2.22 4.2V 1.98V

11

3.3VA(VDD)_
(3V~3.6V)

3.29 - -

8 12V(10.8V~13V) 12.02 - -

10 VH (27V~33V) 30.1 - -

IC501

IC,LDO Voltage Regulator

2 3.8VA 3.71 - -

3 1.35V(VD)±5% 1.35 - -

IC604

2 5.5VA 5.51 - -

3 5V(USB)±0.3V 5.05 - -

IC805

2 3.8VA 3.77 - -

3 3.3V(HDMI) ±5% 3.29 - -

IC502 IC,Digital Signal Processors

20,52,83 1.35V(VDD)±5% 1.29 - -

7,18,54,71,

79,81,82

3.3V(VDD)±5% 3.29 - -

98,116 3.3V(ADAC)±5% 3.29 - -

41 3.3V(PLL)±5% 3.29 - -

126 3.3V(AADC)±5% 3.3 - -

121

1.35V(AADC)

±5%

1.32 - -

37 3.3V(USB)±5% 3.3 - -

3-403-39

CIRCUIT VOLTAGE CHART

Designator Description PIN Voltage Spec

Measured

Voltage

( + ) ( - )

IC600

IC,DC,DC Converter

7 25.5V 25.56 - -

1

3.8VA (3.6V~

3.9V)

3.75 - -

IC601

7 25.5V 25.56 - -

1

5.5VA (5.3V~

5.7V)

5.53 - -

IC602

7 25.5V 25.53 - -

1

12V (11.4V~

12.6V)

12 - -

IC700

IC,LDO Voltage Regulator

1 3.8VA 3.77 - -

5

3.3(MICOM)_
(0.5V~6.5V)

3.28 - -

IC603

1 3.8VA 3.78 - -

5

3.3V(Wireless)_
(2.7V~3.6V)

3.3 - -

IC701/IC702 IC,DAC

1

3.3V(CPVDD)_
(3.0V~3.6V)

3.3 - -

8

3.3V(AVDD)_
(3.0V~3.6V)

3.3 - -

20

3.3V(DVDD)_
(3.0V~3.6V)

3.3 - -

IC703

IC,Audio Amplifi er

18,19,31,32

25.5V(PVCC)_
(4.5V~30V)

25.57 - -

17

25.5V(AVCC)_
(4.5V~30V)

25.56 - -

7

GVDD_

(6.4V~7.4V)

6.98 - -

IC704

18,19,31,32

25.5V(PVCC)_
(4.5V~30V)

25.56 - -

17

25.5V(AVCC)_
(4.5V~30V)

25.54 - -

7

GVDD_

(6.4V~7.4V)

7.05 - -

IC804

IC,LDO Voltage Regulator

3 3.3V±5% 3.36 - -

2

1.8V(HDMI)

(1.71V~1.89V)

1.81 - -

IC803

3 3.3V±5% 3.26 - -

2

1.8V(HDMI)_

(1.71V~1.89V)

1.88 - -

JK502 Jack,Fiber Optic 3 3.3V(MICOM) 3.3 - -

JK600 Jack,DC Power 3 25.5V(PVDD) 25.58 25.58V 0V

JK802 Connector,HDMI 18

5VA (HDMI TX)

(4.8V~5.3V)

5.19 - -

Designator Description PIN Voltage Spec

Measured

Voltage

( + ) ( - )

L603

Filter,Bead

1 3.8VA 3.82 - -

L604 1 5.5VA 5.53 - -

L605 1 12V 12.01 - -

L607 1 5V(USB)±5% 5.05 - -

L500 1 3.3V(ADAC)±5% 3.31 - -

L501 1 3.3V(USB)±5% 3.29 - -

L502 1 3.3V(PLL)±5% 3.29 - -

L503 1 3.3V(AADC)±5% 3.26 - -

L504 1 3.3V(VD)±5% 3.26 - -

L505 1 1.35V(VD)±5% 1.35 - -

L506 1 1.35V(ADC)±5% 1.34 - -

L600

Inductor,Wire Wound,Chip

2 3.8VA 3.82 - -

L601 2 5.5VA 5.53 - -

L602 2 12V 12.02 - -

L800

Filter,Bead

1 3.3V(HIO33)±5% 3.27 - -

L801 1

1.8V(TXVDD)
±5%

1.88 - -

L802 1 1.8V(PVDD)±5% 1.88 - -

L803 1 1.8V(DVDD)±5% 1.88 - -

L804 1

1.8V(TXAVDD)
±5%

1.88 - -

L805 1 3.3V(TVDD)±5% 3.27 - -

L806 1

1.8V(TXPVDD)
±5%

1.88 - -

L807 1 1.8V(CVDD)±5% 1.88 - -

L812 1 5V 5.2 - -

RC200 Remocon,Reciever 2

3.3VA

(2.8V ~ 3.5V)

3.15 - -

Wireless Module,Assembly 1 3.3V±0.3V 3.3 - -

IC Sym IC Name/ Type Vccc/Vdd Remark

CA702 -

~spec :

-

Less than 35 V

~Measured voltage :

(+) : 25.4 V

(-) : 0 V

CA703 -

~spec :

-

Less than35 V

~Measured voltage :

(+) : 25.42 V

(-) : 0 V

3-423-41

IC Sym IC Name/ Type Vccc/Vdd Remark

DIG200

007BT320INK

~spec :

-40~+80°C

TYPE : 38pin Ef : 2.03V~2.48V

Ef (=F+ - F-) --> F+ : 1, 2 / F- :

37, 38

VIN : 10.8V~13V

VIN : 8 VH : 27V~33V

VH : 10 VDD : 3V~3.6V

VDD : 11

~Measured voltage :

Ef : 2.237

VIN : 12.05

VH : 31.26

VDD : 3.306

IC502

ES8680FSC

~spec : 1.35V(VDD)±5%

-65~150°C

TYPE : 138pin 3.3V(VDD)±5%

1.35V(VDD) : 20,52,83 3.3V(ADAC)±5%

3.3V(VDD) : 7,18,54,71,79,81,82 3.3V(PLL)±5%

3.3V(ADAC) : 98,116 3.3V(AADC)±5%

3.3V(PLL) : 41 1.35V(AADC)±5%

3.3V(AADC) : 126 3.3V(USB)±5%

1.35V(AADC) : 121

3.3V(USB) : 37

~Measured voltage : 1.353

3.324

3.3

3.303

3.302

1.35

3.29

IC504

MX25L1606EM2I-12G

16MBIT 8M X 2BIT

2.7VTO3.6V,0VTO0V,0VTO0V
12NSEC UNIFORM SECTOR

SOP TR 8P - MACRONIX

INTERNATIONAL CO., LTD.

~spec : 3.18~3.43V

-40~85°C

TYPE : 8pin

~Measured voltage : 3.302

VD33 : 7

IC701

~spec :

0~125°C

TAS5612LA PVDD : 12~34V

TYPE : 44pin VDD : 10.8~13.2V

PVDD: 29,30,31,36,37,38 GVDD : 10.8~13.2V

VDD : 2

GVDD1 : 1

~Measured voltage :

PVDD : 25.41

VDD : 12.05

GVDD : 11.94

RC200 AO-R123C7G-LG(T)

~spec :

-20~80°C

3-443-43

PRINTED CIRCUIT BOARD DIAGRAMS

1. MAIN P. C. BOARD

(TOP VIEW)

(BOTTOM VIEW)

3-45 3-46

2. FRONT P. C. BOARD

3. TACT KEY P. C. BOARD

(TOP VIEW)

(TOP VIEW)

(BOTTOM VIEW)

(BOTTOM VIEW)

3-483-47

4. WOOFER SMPS P. C. BOARD

(TOP VIEW) (BOTTOM VIEW)

3-503-49

5. WOOFER AMP P. C. BOARD

(TOP VIEW) (BOTTOM VIEW)

3-51 3-52

6. WOOFER KEY P. C. BOARD

7. WOOFER LED P. C. BOARD

(TOP VIEW)

(TOP VIEW)

(BOTTOM VIEW)

(BOTTOM VIEW)

3-53 3-54

MEMO MEMO