JBL CHARGE 3 PORTABLE WIRELESS STEREO SPEAKER (WITH SN GG0301 - GG0314) DISASSEMBLE PROCEDURE , SCHEMATICS DIAGRAMS

 JBL Charge 3 (with SN GG0301 - GG0314) Portable Wireless Stereo Speaker how to disassemble, schematic diagram

 Portable Wireless Stereo Speaker with passive bass radiators, 6000 mAh battery for 15 hours of playing time and charging of other devices through USB, and IPX7 waterproof

Applicable to: SKU: JBLCHARGE3BLKAM, JBLCHARGE3BLUEAM, JBLCHARGE3REDAM, JBLCHARGE3GRAYAM, JBLCHARGE3TEALAM, JBLCHARGE3BLKEU, JBLCHARGE3BLUEEU, JBLCHARGE3REDEU, JBLCHARGE3GRAYEU, JBLCHARGE3TEALEU, JBLCHARGE3BLKAS, JBLCHARGE3BLUEAS, JBLCHARGE3REDAS, JBLCHARGE3GRAYAS

· Bluetooth version: 4.1
· Support: A2DP V1.3, AVRCP V1.5, HFP V1.6, HSP V1.2
· Transducers: 2 x 50mm
· Rated power: 2 x 10W
· Frequency response: 70Hz-20kHz (-6dB)
· Signal-to-noise ratio: >80dB
· Battery type: Lithium-ion Polymer (3.7V, 6000mAH)
· Power Supply: 5V / 2.3A
· USB charge out: 5V / 2A (maximum)
· Music play time: up to 15 hours (varies by volume level and content)
· Battery charge time: 4.5 hrs
· Dimensions (W × D × H): 213 x 87 x 88.5 mm
· Weight: 770g
· Bluetooth transmitter frequency range: 0-9 dBm
· Bluetooth transmitter power: 2.402 – 2.480 GHz
· Bluetooth  transmitter modulation: GFSK, π/4 DQPSK, 8DPSK

JBL Charge 3 Dismantling & Reassembly Procedure

Assembly Procedure

Schematic

JBL CLIP PLUS – DISASSEMBLING PROCEDURE – HOW TO REMOVE THE SPEAKER – HOW TO REMOVE THE BOARD

JBL Clip Plus – Disassembling procedure – How to remove the speaker – How to remove the board

Use the angled tweezers to carefully pull the rubber boots off the back side of the device

There will be three 6mm philips head screws under that rubber boots, remove these three screws.

The back cover should lift open easily and the components will be visible.

The battery is adhered to the back cover of the JBL Clip Plus, slowly lift the battery away from the case, using a spudger to pry the battery away from the adhesive.

Remove the three 7mm philips head screws on the outer edges of the device.

Use the plastic prying tool to gently remove the face of the speaker from the body.

Use the spudger tool to gently scrape away the adhesive holding in the microphone.

The regular black nylon spudger or a plastic opening tool should be used whenever possible.

Gently push the motherboard away from the microphone, this will allow you to remove the microphone.

Gently push the motherboard out from the frame of the JBL Clip Plus, this requires some force.

There are three solder points that need to be desoldered. After these are removed the battery should be free.

There are two philips head 4mm screws fixing the speaker to the body, remove these.

Remove the solder on the motherboard.

JBL FLIP 2 – WIRELESS BLUETOOTH SPEAKER - HOW TO REPLACE THE BATTERY

JBL Flip 2 – Wireless Bluetooth Speaker - How to replace the battery

JBL Flip 2

Begin by removing the rubber caps on both sides of the JBL Flip 2 by using the black spudger to get in between the creases.
Be very careful when removing the nfc rubber cap. There is a chip that is glued to the inside of the rubber cap. So, peel the rubber cap off slowly and remove the chip on the inside while peeling the rubber cap off.

Using the driver adapter with the number 1 Philip's head bit, remove the eight 7.0 mm screws on both sides of the JBL Flip 2.

The nfc chip is glued onto the side of the device. Use the black spudger to separate the mic from the surface.

Be careful not to sever the wire connecting the nfc chip to the inside of the device.
Gently slide the nfc chip into the device through the slot that the wire comes from.

Peel the black rubber piece from one end to the other.

Remove the two 7.0 mm screws using the driver adapter with the #1 Philip's head bit.

Carefully detach the silver plastic cover by pulling both ends off.
Pull both ends at the same time with the same amount of force to prevent the cover from breaking.
Separate the silver plastic piece by pulling it off from the middle.

Using the driver adapter with the #3.0 flat-head bit, pry out the 8 metal nibs on the back side of the speaker.

Repeat the same process for the 4 remaining metal nibs (two on each end).

Expand the metal casing and carefully slide it off the speaker.

Using the driver adapter, first insert the #4 socket into the driver; followed by the #1

Philip's head bit in order to reach the three 13.0 mm screws.

Using the classic spudger, get underneath the black tape strips found on both side of the device.

After lifting a portion of the tape off of the device, gently peel the tape off of the device, making sure to keep it intact.
There is another piece of tape on the side of the device with the control buttons. Lift the tape with the classic spudger and then peel the rest of the tape off.

Wedge a spudger between the two halves where the tape was to pry the device open. When working with electronics, it's important to choose a tool that's ESD-safe to avoid accidental damage to the device. The regular black nylon spudger or a plastic opening tool should be used whenever possible

Use the black spudger to disconnect the speaker cord from it's socket.

Use the black spudger to disconnect the auxiliary wire from its socket.

Carefully remove the cable connecting the control chip to the motherboard.

Using the black spudger, carefully remove the cord connecting the battery to the motherboard.

Carefully remove the cable connecting the nfc chip to the motherboard.

Attach the Philips #1 bit to the driver adapter. With the driver adapter, release the one 7.0 mm screw that is attaching the motherboard to the casing. Lift the motherboard out of the case and the battery is revealed.

Remove the cord that connects the ports board to the motherboard. Put the motherboard to the side.

Using the black spudger, loosen the brace holding in the battery. To remove the brace, turn it 90 degrees clockwise and lift it up from its socket.

JBL FLIP 2 – WIRELESS BLUETOOTH SPEAKER - DISASSEMBLING PROCEDURE – HOW TO REMOVE THE CASE – HOW TO REPLACE THE SPEAKERS

JBL Flip 2 – Wireless Bluetooth Speaker - Disassembling procedure – How to remove the case – How to replace the speakers

JBL Flip 2

Begin by removing the rubber caps on both sides of the JBL Flip 2 by using the black spudger to get in between the creases.
Be very careful when removing the nfc rubber cap. There is a chip that is glued to the inside of the rubber cap. So, peel the rubber cap off slowly and remove the chip on the inside while peeling the rubber cap off.

Using the driver adapter with the number 1 Philip's head bit, remove the eight 7.0 mm screws on both sides of the JBL Flip 2.

The nfc chip is glued onto the side of the device. Use the black spudger to separate the mic from the surface.

Be careful not to sever the wire connecting the nfc chip to the inside of the device.
Gently slide the nfc chip into the device through the slot that the wire comes from.

Peel the black rubber piece from one end to the other.

Remove the two 7.0 mm screws using the driver adapter with the #1 Philip's head bit.

Carefully detach the silver plastic cover by pulling both ends off.
Pull both ends at the same time with the same amount of force to prevent the cover from breaking.
Separate the silver plastic piece by pulling it off from the middle.

Using the driver adapter with the #3.0 flat-head bit, pry out the 8 metal nibs on the back side of the speaker.

Repeat the same process for the 4 remaining metal nibs (two on each end).

Expand the metal casing and carefully slide it off the speaker.

Using the driver adapter, first insert the #4 socket into the driver; followed by the #1

Philip's head bit in order to reach the three 13.0 mm screws.

Using the classic spudger, get underneath the black tape strips found on both side of the device.

After lifting a portion of the tape off of the device, gently peel the tape off of the device, making sure to keep it intact.
There is another piece of tape on the side of the device with the control buttons. Lift the tape with the classic spudger and then peel the rest of the tape off.

Wedge a spudger between the two halves where the tape was to pry the device open. When working with electronics, it's important to choose a tool that's ESD-safe to avoid accidental damage to the device. The regular black nylon spudger or a plastic opening tool should be used whenever possible

Use the black spudger to disconnect the speaker cord from it's socket.

Use the black spudger to disconnect the auxiliary wire from its socket.

Carefully remove the cable connecting the control chip to the motherboard.

Using the black spudger, carefully remove the cord connecting the battery to the motherboard.

Carefully remove the cable connecting the nfc chip to the motherboard. Remove the two 7.0 mm Phillips #1 screws.

Remove the metal bar that was held in place by the screws. Unscrew the the other four 7.0 mm Phillips #1 screws around the speakers.

Gently remove the speakers from the slots.

CAIXA CONNECT 800 – WIRELESS SYSTEM - SCHEMATIC

CAIXA CONNECT 800 – WIRELESS SYSTEM - SCHEMATIC

CONNECT 800 – WIRELESS SYSTEM - Circuit Diagram

SCHEMATIC {Click on the Schematic to Zoom In}

HARMAN KARDON SB30 - SB230 ACTIVE SOUND BAR WITH WIRELESS SUBWOOFER TROUBLESHOOTING AND POWER SUPPLY CIRCUIT DIAGRAM

HARMAN KARDON SB30 - SB230 Active Sound bar with wireless subwoofer troubleshooting and power supply circuit diagram

Category: Audio System Repair and Service 

Contents of this article 

• Troubleshooting 
• Power supply circuit 

HARMAN KARDON SB30 - SB230

Troubleshooting
The soundbar does not turn on (the Power LED is off):

# Check that the soundbar’s power cord is plugged into a working AC outlet.
# Check that the soundbar’s Power switch is in the “On” position.
# Check if the soundbar’s AC fuse has blown. See Soundbar Rear-Panel Controls and Connections: AC Fuse Holder, on page 4, for instructions on checking and changing the fuse.
# Check if the soundbar’s voltage selector switch is set in the incorrect position for the AC voltage in your area.

The subwoofer does not turn on (the Power LED is off):

# Check that the subwoofer’s power cord is plugged into a working AC outlet.
# Check that the subwoofer’s Power switch is in the “On” position.

There is no sound coming from both the soundbar and the subwoofer (their Power LEDs are amber or blue):
# Check that the soundbar is on (the Power LED is blue).
# Check that the cable connecting the TV or other source component to the soundbar is properly connected at both ends.
# Check that the soundbar is set to the correct input source (one white Status
LED glows for optical digital, two white Status LEDs for coaxial digital, and three white Status LEDs for analog) and that the input source device is playing an audio signal.
# Check that the system is not muted (when the system is muted, the soundbar’s Power LED flashes blue). If the system is muted, press the remote control’s Mute button to un-mute the system.
# Check that the soundbar’s volume is not turned all the way down.
There is no sound coming from just the subwoofer (the Power LED is amber or blue):

# Check that the Subwoofer Volume control is not turned all the way down (fully counterclockwise).
# Check that the Wireless Code switches on the subwoofer and soundbar are both set to the same setting number.
# Move the subwoofer closer to the soundbar. The maximum wireless operation distance is 50 feet (15.3m).
The soundbar’s sound is distorted:

# Check the source device to see if the distortion is coming from it and not from the soundbar.

The system’s sound is too quiet, even when the soundbar’s volume is turned all the way up:
# If the TV or source component is connected via a variable analog output, check its
instructions to be sure that the output is not turned down too low.
The bass output is not loud enough:

# Turn up the subwoofer’s Volume control.
# Move the subwoofer into a corner of the room.
# Move the subwoofer closer to the seating location.

L6599 High-voltage resonant controller

Device description
The L6599 is a double-ended controller specific for the resonant half-bridge topology. It provides 50 % complementary duty cycle: the high-side switch and the low-side switch are driven ON\OFF 180° out-of-phase for exactly the same time. Output voltage regulation is obtained by modulating the operating frequency. A fixed deadtime inserted between the turn-OFF of one switch and the turn-ON of the other one guarantees soft-switching and enables high-frequency operation. To drive the high-side switch with the bootstrap approach, the IC incorporates a high-voltage floating structure able to withstand more than 600 V with a synchronous-driven high-voltage DMOS that replaces the external fast-recovery bootstrap diode. The IC enables the designer to set the operating frequency range of the converter by means of an externally programmable oscillator.
At start-up, to prevent uncontrolled inrush current, the switching frequency starts from a programmable maximum value and progressively decays until it reaches the steady-state value determined by the control loop. This frequency shift is non linear to minimize output voltage overshoots; its duration is programmable as well. The IC can be forced to enter a controlled burst-mode operation at light load, so as to keep converter's input consumption to a minimum.
IC's functions include a not-latched active-low disable input with current hysteresis useful for power sequencing or for brownout protection, a current sense input for OCP with frequency shift and delayed shutdown with automatic restart.
A higher level OCP latches off the IC if the first-level protection is not sufficient to control the primary current. Their combination offers complete protection against overload and short circuits. An additional latched disable input (DIS) allows easy implementation of OTP and/or OVP.
An interface with the PFC controller is provided that enables to switch off the pre-regulator during fault conditions, such as OCP shutdown and DIS high, or during burst-mode operation.

Applications
# LCD and PDP TV
# Desktop PC, entry-level server
# Telecom SMPS
# AC-DC adapter, open frame SMPS

POWER SUPPLY CIRCUIT 

CLICK ON THE IMAGE TO ZOOM IN

BOSE SOUNDTOUCH WIRELESS PEDESTAL – WAVE SOUNDTOUCH – DISASSEMBLING PROCEDURE – TAP COMMAND – WIFI TEST – TEST PROCEDURE – AUDIO SYSTEM REPAIR AND SERVICE

BOSE SoundTouch Wireless Pedestal – Wave SoundTouch – Disassembling procedure – Tap command – wifi test – Test procedure – Audio System repair and service

Category: Audio system Repair and Service 

Contents of this article 

• Disassembling procedure 
• Tap command procedure 
• WiFi Test procedure 
• Country code programming 

BOSE SoundTouch Wireless Pedestal

DISASSEMBLY PROCEDURES

Note: Refer to the figure below for the following procedures.
1. Top Cover Removal
1.1 With the unit upside down, remove the six screws (15) on the bottom of the unit that secure the top cover (1) to the base (2).
1.2 Turn the unit back over and lift off the top cover.
Note: Service replacement top covers include the front bezel that is adhered to the front of the top cover. The part number is located on the main parts list.
2. Input/Output PCB Assembly Removal
2.1 Perform procedure 1.
2.2 Disconnect the Bose Link cable (4) from J201 on the I/O PCB (8). Disconnect the two ribbon cables (6,17) at J200 and J300 that run to the Wi-Fi Module PCB (7).
2.3 Remove the two screws that secure the I/O PCB assembly to the base. Lift out the I/O PCB assembly.

Note: Be sure to retain the scrims that cover the connectors and the reset button from the old I/O PCB for re-use.
3. Wi-Fi Module PCB Removal
3.1 Perform procedure 1.
3.2 Disconnect the two ribbon cables (6,17) at J1203 and J1201 that run to the I/O PCB (8) assembly.
3.3 Remove the three screws that secure the Wi-Fi PCB (7) assembly to the base. Lift out the Wi-Fi PCB.
4. Enclosure Base Removal
4.1 Perform procedure 1.
4.2 Remove the I/O (8) and Wi-Fi Module PCB (7) assemblies using procedures 2 and 3. You can now replace the base (2).
Note: The Service replacement enclosure base is supplied with the Bose Link cable, rear panel I/O label and feet attached as a Service subassembly. 

TAP COMMAND SETUP

Equipment Required:
Hardware
# Computer w/serial port
# Wave  Music system III
# RS232 to TTL converter
# Lifestyle  ETAP Cable, P/N 264565
Software
 TeraTerm terminal emulator (sourceforge.jp/projects/ttssh2/)
TAP commands are sent to the SoundTouch wireless pedestal by connecting to the SERVICE connector on the back of the pedestal.
An ETAP cable and RS232 to TTL Converter are required for this communication. The ETAP cable is available from Bose (see part number above). The RS232 to TTL Converter is made by B+B electronics, model number 232LPTTL.

TAP commands are needed for the following procedures:
A. Wi-Fi Test
B. Serial Number Programing
C. Setting Wi-Fi Country Code

1. Tera Term Terminal USB Setup
Tera Term is a terminal emulator and can be downloaded at sourceforge.jp/ projects/ttssh2/. It is the interface used to send TAP commands to the SoundTouch wireless pedestal.
1.1 Connect the SoundTouch wireless pedestal to the Wave® Music system III using the Bose link cable on the pedestal.
1.2 Connect the Wave Music system III to AC power.
1.3 Connect the SoundTouch wireless pedestal to the computer.
# Connect the RS-232 to TTL converter to the COM port on the PC.
# Connect the TAP cable to the RS-232 to TTL converter.
# Plug the other end of the TAP cable into the SERVICE jack on the back of the SoundTouch wireless pedestal.
2. Teraterm Setup
2.1 Launch a Tera Term terminal window and select serial communication and port.

WI-FI TEST PROCEDURE

2.2 Select setup, then serial port to set the baud rate to 115,200 data to 8 bit, parity to none, stop to 1 bit and flow control to none.

3. Test TAP Communication
3.1 Enter TAP command “sys ver”. The system will respond with the software version similar to: BoseApp version: 1.0.17.11330.242810 epdbuild.rel_1.x.hepdswbld05.2013-06- 18T15:50:19.
Functional Tests
Wi-Fi Functional Test Set Up
This test uses TAP commands to connect the product to a Wi-Fi network and stream audio from a Bose URL. The Bose SoundTouch application can be used in place of this test. Note: Do not download the audio file from the test URL

Determine the security type for your router and select the appropriate TAP command for connecting to a Wi-Fi Router (WEP, WPA, or no security). Refer to  TAP Command Setup. Connect the SoundTouch wireless pedestal to the Wave Music system III using the Bose link cable on the pedestal. Connect the Wave Music system III to AC power.
1. Connecting to a Wi-Fi Router
1.1 Enter the following TAP command for your router security type setting. Do not enter parentheses.
1.1.1 WEP Security Type
airplay wep profile (SSID) (Password)
1.1.2 WPA Security Type
airplay wpa profile (SSID) (tkip or aes)
(Password)
1.1.3 No Security
airplay Wi-Fi profile (SSID)
1.2 Wait for the Wi-Fi indicator LED on the back of the unit to turn white. This may take up to a minute. While the unit is connecting, it will flash amber. If the indicator does not turn white, enter the TAP command again.
2. Testing the Wi-Fi Module.
2.1 Enter the following TAP commands.
Press the <enter> key on your keyboard after each command. You should see an OK response in the Tera Term dialog box. sys configuration DemoAudioURL worldwide.bose.com/downloads/assets/ audio/take5.mp3 <enter> sys configuration DemoNetworkEnabled true <enter>

demo enter <enter>

TEST PROCEDURES

2.2 The song “Take 5” should play. Listen for clean undistorted audio.
2.3 Enter the following TAP command to exit the Wi-Fi test.
demo exit <enter>
Note: A Tera-Term macro that includes these TAP commands is available for download on the product’s repair information page. Place the macro file in the same folder as your Tera-Term program. Open Tera-Term, select Control, Macro, wifi_test.ttl. Once the macro runs, follow the prompts.
3. Factory Default Unit
3.1 Enter the TAP command sys factorydefault <enter>
3.2 Provide the customer instructions for reconnecting their system to their Wi-Fi network. Download the instructional sheet on the product’s repair information page.
4. USB Port Functional Test
4.1 Connect the SoundTouch wireless pedestal to a computer and run TAP command set up.
4.2 Type the command “local_services on” and <enter>. Then press CTRL-C on the keyboard. Then type “e” and <enter>. The command line lisa login: should be displayed on the computer.
4.3 Type the command “root” and <enter>. The command line should be root@lisa:root#.
4.4 Connect a USB thumb drive to the USB port located on the back of the product.
4.5 Type the command “lsusb”.

4.6 Verify the unit responds with the name of the USB thumbdrive. Sample response - Bus 002 Device 002: ID 0781:5151 SanDisk Corp. Cruzer Micro Flash Drive.
4.7 Send the command “rm /mnt/nv/ local_services” and <enter>.
4.8 Send the command “exit” and <enter>. This will return to the TAP interface (CLI) and a TAP command line “->” should be shown.
5. Micro USB Port Functional Test
5.1 Using a micro USB to standard USB cable, insert the micro USB end of the cable into the SoundTouch connector labeled SETUP A (micro USB). Plug the other end of the cable into a USB port on a computer. Ensure that cable is properly seated.
5.2 Open your device manger and look under Network Adapters. You should see the SoundTouch Wi-Fi adapter as an adapter.
Directions: On your computer, click on Start and navigate to Run. In the window that opens, enter “mmc devmgmt.msc”. The device manager will open. In the device manager, expand the network adapters, you should see the SoundTouch wireless pedestal as an adapter.
6. Ethernet Connector Functional Test
6.1 Insert an Ethernet cable into the Ethernet connector on the SoundTouch system. Connect the other end of the cable to the router.
6.2 The LED lights on the product’s Ethernet connector should light up yellow and green after a few seconds indicating that the connector is functioning.

SERIAL NUMBER AND COUNTRY CODE PROGRAMMING

Perform both of these procedures any time the Wi-Fi Module is replaced. Download two macros from the SoundTouchTM product’s repair information
page located on serviceops.bose.com. Place these macros in the Tera Term program folder.

set_serial_number.ttl
set_country_code.ttl
1. Setting the Serial Number
1.1 Connect the SoundTouch wireless pedestal to a computer and run TAP command setup procedure.
1.2 Within Tera Term, select Control then Macro and Select the file -
“set_serial_number.ttl”
1.3 Follow the prompts.
2. Setting the Country Code
2.1 Connect the SoundTouch wireless pedestal to a computer and run TAP command
2.2 Within Tera Term, select Control then Macro and Select the file -
“set_country_code.ttl”
2.4 Follow the prompts.
Note: Selecting us sets the Wi-Fi module to the US standard channels 1-11. Selecting eu sets the Wi-Fi module to EU standard channels 1-13

3. Reading the Country Code.
3.1 Type the command “local_services on” and <enter>. Then press CTRL-C on the keyboard. Then type “e” and <enter>. The command line lisa login: should be displayed on the computer.
3.2 Type the command “root” and <enter>. The command line should be root@lisa:root#.
3.3 Enter “cat /var/tmp/mfgdata.xml”. The country code is displayed in the first line of the response.
3.4 Return to CLI prompt by entering the command “rm /mnt/nv/local_services” and <enter>.
3.5 Enter the command “exit” and <enter>. This will return to the TAP interface (CLI) and a TAP command line “->” should be shown.

TAP COMMANDS

1. Connect to Router
1.1 No security
“airplay wifi profile [network_name]” connects to a network w/ no security
1.2 WPA security
“airplay wpa profile [network_name] [security] [passphrase]” for WPA where security is TKIP or AES
1.3 WEP security
“airplay wep profile [network_name] [key]” for WEP security
2. Play Song from Demo URL
2.1 View Current system configuration “getpdo CurrentSystemConfiguration” will print out the current values
2.2 Enter location of demo URL“sys configuration DemoAudioURL http:// worldwide.bose.com/downloads/assets/ audio/take5.mp3”
2.3 Enable Demo “sys configuration DemoNetworkEnabled true”
2.4 Enter Demo mode “demo enter”
2.5 Exit Demo Mode “demo exit” or “sys reboot”
3. Enter Manufacturing mode
3.1 As soon as the unit starts to boot, hold shift and press “U” repeatedly until “U-Boot#” prompt is displayed. This will interupt the normal boot process.
3.2 At the U-Boot# prompt, enter TAP command “setenv variant_mode mfg”
3.3 Enter TAP command “boot” to reboot unit into manufacturing mode.

4. Set Country Code
The Wi-FI module can be set to EU or US standard, which determines which Wi-Fi channels are used. All countries outside the US are set to the EU Code. EU 1-13 ch , US 1-11 ch
4.1 Enter Manufacturing Mode (Procedure 3)
4.2 At the “->” prompt, enter TAP command “d dm870 cc (EU or US).
4.3 Enter TAP command “d reset” to reboot into normal mode.
5. Check Country Code.
5.1 Type the command “local_services on” and <enter>. Then press CTRL-C on the keyboard. Then type “e” and <enter>. The command line spotty login: should be displayed on the computer.
5.2 Enter TAP command “root” and <enter>. The command line should be root@spotty:root#.
5.3 Enter “cat /var/tmp/mfgdata.xml” without the quotes. The country code is displayed in the first line of the response.
5.4 Return to CLI prompt by entering the command “rm /mnt/nv/local_services” and <enter>.
5.5 Enter the command “exit” and <enter>. This will return to the TAP interface (CLI) and a TAP command line “->” should be shown.

SONY SOUND BAR WITH WIRELESS SUBWOOFER - HT-NT3 - SA-NT3 – SERVICE MODE – TEST MODE – FACTORY RESET – AMP TEST MODE – POWER AMPLIFIER CIRCUIT DIAGRAM – AUDIO SYSTEM REPAIR AND SERVICE

SONY SOUND BAR WITH WIRELESS SUBWOOFER - HT-NT3 - SA-NT3 – Service mode – test mode – factory reset – amp test mode – power amplifier circuit diagram – Audio system repair and service

Category: Audio system Repair and Service 

Contents of this article 

• Service mode access
• Test modes
• Power amp circuit diagram 

SONY  HT-NT3 - SA-NT3 

NOTE OF DELETING THE PRODUCT REGISTRATION ON SEN (INTERNET MUSIC SERVICES)
It is needed to delete the product registration on SEN (Internet Music Services) by checking the “Device ID” which have 12 digits hexadecimal number. The procedure of checking “Device ID” can be followed as below:
1. Press [HOME] button of the remote commander, the message “HOME” appears.
2. Select “Setup” and press [ENTER ] button.
3. Select “System Settings” and press [ENTER ] button.
4. Select “System Information” and press [ ENTER] button.
5. Device ID will shown on the display.
Device ID: XXXX XXXX XXXX (12 digits hexadecimal number).
If it is needed to delete the customer’s registration, please contact the Service Headquarter with Device ID information.

NOTE OF REPLACING THE COMPLETE MB-1407 BOARD OR CARD WLAN/BT COMBO
When the complete MB-1407 board or CARD WLAN/BT COMBO are replaced, please execute the below service mode.
Procedure:
[Home menu > Setup > Resetting > Reset to Factory Default Settings > All Settings]
Next, go to service menu and execute “[1] Bluetooth Enable” and “[3] Write Bluetooth device address to Registry”.
Finally check one touch NFC listening function at normal power on.
Note: The operation in this mode must use a remote commander and TV monitor.
1. Connect this unit with TV monitor.
2. Press the [POWER] button to turn the power on.
3. Press button in order of the [STOP] > [DISPLAY] > [PAUSE] > [UP] on the remote commander.
(Make the interval when each button is pressed within two seconds)
4. Enter the SVC service mode. The OSD menu on TV monitor can be operated by remote commander.
5. Press [DOWN] and Enter Diag.
6. Press [RIGHT] and Enter Bluetooth Device Test (Screen 1).
7. Enter [1] Bluetooth Enable, wait until the display show “ Status : Bluetooth Enable Successful ” (Screen 2).
8. Enter [3] Write Bluetooth device address to Registry, wait until the display show “Bluetooth Device Address” and “Status : Write Successfull” (Screen 3).
9. Press the [RETURN] button on the remote commander to select “Wireless LAN Test”. (Screen 4)
10. Press the [ ENTER] button on the remote commander to select “[5] Write P2P address to Registry”.
11. Press the [ENTER ] button on the remote commander, wait until the display show “Status: Write Successful!” (Screen 5).
12. Press the [DOWN] button on the remote commander to select “[6] P2P Registry Check”.
13. Press the [ENTER] button on the remote commander to check the P2P devise address is the same as shown in Screen 5. (Displayed chracters/values in the following figure are example)
14. Press the [BACK] button on the remote commander and select Factory Initialize. (go to Screen 7)
15. The set will turn off automatically.

TEST MODE

COLD RESET
The cold reset clears certain data in this system without initialize
Personal Information and some operation data.
Execute this mode when returning the unit to the customers.
Procedure:
1. Press the [POWER] button on the main unit to turn the power on.
2. Press the [POWER] button and [VOL -] button on the main unit simultaneously for five seconds.
3. The message “WAIT” appears and then “RESET” appears on the fluorescent indicator tube, then becomes standby states.
PANEL TEST
Procedure:
1. Press the [POWER] button on the main unit to turn the power on.
2. Press button in order of the [STOP] > [DISPLAY] > [UP] > [DOWN] on the remote commander.
(Make the interval when each button is pressed within two seconds).
3. All segments in fluorescent indicator tube are lighted up and then is dimmed after a second.
4. In the state of step 3, press the [INPUT +] button on the remote commander and “K 0” is displayed on the fluorescent indicator tube.
5. In the state of step 4, press the [VOL +] button on the remote commander and “SZ_A” is displayed on the fluorescent indicator tube.
6. In the state of step 5, press the [VOL -] button on the remote commander and all segments in fluorescent indicator tube are lighted up and then is dimmed after a second.
7. In the state of step 6, press the [STOP] button on the remote commander and “1 24” is displayed on the fluorescent indicator tube.

Releasing method:
To release from this mode, press the [?/1] button on the main unit or press the [POWER] button on the remote commander.
AMP TEST
Procedure:
1. Touch the [POWER] touch key on the main unit to turn the power on.
2. Press button in order of the [STOP] > [DISPLAY] > [VOL -] > [UP] on the remote commander.
The messsage “MSURE” is displayed on the fluorescent indicator tube.
3. In the state of step 2, press [DIMMER] button on the remote commander. The message will appear in order of the “FULL” > “THRU” > “F2S” > “F2SB” > “F2CW” on the fluorescent indicator tube.
4. In the state of step 3, press [m] button on the remote commander.
The message will appear in order of the “A.OFF” > “A.ON” on the fluorescent indicator tube.
5. In the state of step 4, press [%] button on the remote commander.
The message will appear in order of the “V.N” > “V.MSM” on the fluorescent indicator tube.
6. In the state of step 5, press [CLEARAUDIO+] button on the remote commander.
The message will appear in order of the “VAON” > “VAOFF” on the fluorescent indicator tube.

7. In the state of step 6, press [VOICE] button on the remote commander to adjust the volume gain. It can be adjusted between -3.0 to +3.0 (increase everytime 0.1 step).
Eg: When gain +1.0 dB by pressing the [VOICE] button, the message “G +1.0” will appear on the fluorescent indicator tube.
8. In the state of step 7, press [NIGHT] button on the remote commander to adjust the volume gain. It can be adjusted between +3.0 to -3.0 (decrease everytime 0.1 step).
Eg: When gain -1.0 dB by pressing the [NIGHT] button, the message “G -1.0” will appear on the fluorescent indicator tube.
WIRELESS SOUND TEST MODE
It can display the μ-com version of Subwoofer (SA-WNT3).
Note :More than one item may be displayed on the fluorescent indicator tube, but it is not used for the servicing other than “VER”.
Preparation:
# Prepare the remote commander attached to this unit.
Remote commander:
RM-AH110U (US and Canadian models)
RM-AH110E (Except US and Canadian models)
# Connect the Bar Speaker (SA-NT3) and the Subwoofer (SA-WNT3) by wireless.
Procedure:
1. Press button in order of the [STOP] > [DISPLAY] > [CLEAR AUDIO+] >  [UP] on the remote commander.
2. The message “FACTR” is displayed on the fluorescent indicator tube and enter the wireless sound test mode.
3. Press the [UP]/[DOWN] buttons on the remote commander, select the “VER”, and press the [ ENTER ] button on the remote commander.
4. The μ-com version of Subwoofer (SA-WNT3) is displayed on the fluorescent indicator tube. For example, 0.12A.
5. When [UP]/[DOWN] buttons on the remote commander is pressed while the μ-com version of Subwoofer (SA-WNT3) is displayed on the fluorescent indicator tube, year, month and day of the creation is displayed on the fluorescent indicator tube. For example, 41027.
When [UP]/[DOWN] buttons on the remote commander is pressed again, the display returns to the μ-com version of Subwoofer
(SA-WNT3) display.
Releasing method:
Press the [POWER] button to release the test mode menu.

WIRELESS SOUND COLD RESET
It can initialize various backup information of Subwoofer (SAWNT3).
Preparation:
Connect the Bar Speaker (SA-NT3) and the Subwoofer (SAWNT3)
Procedure:
1. Press button in order of the [STOP] > [DISPLAY] > [BACK] > [UP] on the remote commander.
2. The power indicator LED on the Subwoofer (SA-WNT3) turns as below.
For secure link : orange (light up) -> red (flashing) -> orange (light up)
For normal link : green (light up) -> red (flashing) -> orange (light up)

3. Pull out the power cord on the Subwoofer (SA-WNT3) from
an outlet and insert the power cord again.
FACTORY INITIALIZE
Return all of the unit setting to their factory defaults.
Note 1: Disconnect the following connections when you use this mode.
USB
Note 2: The operation in this mode must use a remote commander and TV monitor.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the [HOME] button on the remote commander, and the home menu is displayed.
3. Select “Setup” > “Resetting”, and press the [ENTER ] button on the remote commander.

4. Select “Initialize Personal Information”, and press the [ENTER ] button on the remote commander.

5. Select “OK”, and press the [ ENTER ] button on the remote commander.

6. The message “Close” appears, and press the [ ENTER ] button on the remote commander.

7. Select “Reset to Factory Default Settings”, and press the [ ENTER ] button on the remote commander.

8. Select “All Settings”, and press the [ ENTER ] button on the remote commander.

9. Select “Start”, and press the [ ENTER ] button on the remote commander.

10. Initialization ends when the message “HELLO” on the fluorescent indicator tube disappears.

SVC SERVICE MODE
Note: The operation in this mode must use a remote commander and TV monitor.
Setting method of the SVC service mode:
1. Connect this unit with the TV monitor.
2. Press the [POWER] button on the main unit to turn the power on.
3. Press button in order of the [STOP] > [DISPLAY] > [PAUSE] > [UP] on the remote commander.
(Make the interval when each button is pressed within two seconds). 4. The message “SVC” displayed on the fluorescent indicator tube. The OSD menu on TV monitor can be operated by the remote commander.

POWER AMPLIFIER SCHEMATIC DIAGRAM 

USING ICs TAS5534DGGR - TAS5614LA

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