Help Guide Home Audio System GTK-XB72 The following explains how to use this system. Select a topic from the navigation pane.
Making connections USB device Connecting with a USB device BLUETOOTH® device Pairing and connecting with BLUETOOTH devices Connecting with an NFC-compatible device by One-touch (NFC) External audio device Listening to music of an external audio device, etc.
Adding a live sound effect (LIVE Sound) Reinforcing bass sound and creating more powerful sound（EXTRA BASS） Listening to FM radio Listening to FM radio Presetting radio stations Phone calls Receiving a call Making a call Using dedicated apps Using “Sony | Music Center” What you can do with “Sony | Music Center” Installing “Sony | Music Center” Using Fiestable What you can do with “Fiestable” Installing “Fiestable” Using the voice assist function Using the voice assist function (Google app) Using the vo
What can I do to solve a problem? What can I do to solve a problem? General The power does not turn on. The system has entered standby mode. There is no sound. There is severe hum or noise. A clicking sound is heard when the system is turned on. USB Playback Playback does not start. Files cannot be played back. There is no sound during USB playback. There is noise, skipping, or distorted sound during USB playback. It takes a long time before playback starts. The USB device is not recognized.
BLUETOOTH device cannot be connected to the system during Speaker Add function. Karaoke There is no microphone sound. There is acoustic feedback. Reset System does not operate properly.
Help Guide Home Audio System GTK-XB72 Parts and controls Front 1.
1. AC IN jack 2. PARTY CHAIN button with indicator 3. Audio output and input jacks Use an audio cord (not supplied) to make either connection as follows: AUDIO/PARTY CHAIN OUT L/R jacks Connect to the audio input jacks of an optional equipment. Connect to another audio system to enjoy the Party Chain function. AUDIO/PARTY CHAIN IN L/R jacks Connect to the audio output jacks of a TV or an audio/video equipment. The sound is output through this system.
1. (power) button with indicator 2. (BLUETOOTH) indicator 3. USB indicator 4. TUNER indicator 5. AUDIO IN indicator 6. FUNCTION/ PAIRING button Press repeatedly to select the BLUETOOTH, USB, TUNER, or AUDIO IN function. When the BLUETOOTH function is selected, hold down to activate BLUETOOTH pairing. Press to stop the built-in sound demonstration. 7. / (previous/next) buttons Press to select a track or file. TUNING +/– buttons Press to tune to an FM station. 8. Built-in microphone 9. 10.
14. EXTRA BASS button with indicator 15. –/+ (volume) buttons* Press to adjust the volume. * (play/pause)/ (call) and + (volume) have a tactile dot. Use the tactile dot as a reference when operating the system.
Help Guide Home Audio System GTK-XB72 Carrying/placing the system Before carrying the system, disconnect all the cables connected to the system. Note To avoid personal injury or damage to surrounding household goods, hold the system properly as illustrated above to carry the system. To place the system on its side You can place the system on its side as illustrated below. (Be sure to place the side with the rubber feet down.
Help Guide Home Audio System GTK-XB72 Connecting the system to an AC outlet 1 Firmly insert the end of the AC power cord (mains lead) (supplied) to the AC IN jack on the rear of the system, and then to an AC outlet ( ). The system is turned on in the demonstration mode and Speaker Lights start flashing automatically.
Help Guide Home Audio System GTK-XB72 Turning the power on 1 Press The (power). (power) indicator lights up in green.
Help Guide Home Audio System GTK-XB72 Turning the power off (Standby mode) 1 Press The * The (power). (power) indicator turns off.* (power) indicator lights up in amber when the BLUETOOTH standby function is turned on.
Help Guide Home Audio System GTK-XB72 Using the BLUETOOTH standby function The BLUETOOTH standby mode enables the system to turn on automatically when you establish a BLUETOOTH connection from a BLUETOOTH device. At the time of purchase, this setting is set to off. This setting can only be configured by using “ Sony | Music Center.” For details on “ Sony | Music Center,” see What you can do with “Sony | Music Center”. 1 Press The (power) to turn on the system. (power) indicator lights up in green.
5 Tap [Power Option]. 6 Tap [BT Standby]. 7 Tap [ON] to set the BLUETOOTH standby function to on. When the BLUETOOTH standby function turns on, the AUDIO IN indicator flashes 3 times. To turn off the BLUETOOTH standby function Perform steps to again and set the BLUETOOTH standby function to off. When the BLUETOOTH standby function turns off, the AUDIO IN indicator flashes once.
Help Guide Home Audio System GTK-XB72 Auto Standby function If the system with the Auto Standby function on satisfies the following conditions for about 15 minutes, it turns off automatically. At the time of purchase, the Auto Standby function is set to on. Note The Auto Standby function does not work in the following cases: during tuner function. when an external device is connected to the MIC jack. When the system is in BLUETOOTH mode No operation on the system and BLUETOOTH device.
Help Guide Home Audio System GTK-XB72 Enjoying music with the illumination (Lighting) The system lights up with the music to liven up the atmosphere. At the time of purchase, this setting is set to on. 1 Turn on the system. The (power) indicator lights up in green. The parts of the system illustrated below light up. To turn off (light off) or turn on (light on) the lighting function Hold down W.PARTY CHAIN/ LIGHT for more than 3 seconds until the lighting function turns off/on.
Related Topic Deactivating the demonstration mode 4-748-029-11(1) Copyright 2019 Sony Corporation 18
Help Guide Home Audio System GTK-XB72 Deactivating the demonstration mode The demonstration mode is set to on at the time of purchase. When you connect the system to an AC outlet using the AC power cord (mains lead), the speaker light illuminates automatically. 1 Hold down W.PARTY CHAIN/ LIGHT for more than 3 seconds while the demonstration is performed. The demonstration ends and the speaker light turns off. To activate the demonstration mode Hold down W.PARTY CHAIN/ LIGHT during the standby mode.
Help Guide Home Audio System GTK-XB72 Connecting with a USB device Compatible USB devices USB devices compliant with USB Mass Storage Class USB devices formatted with the FAT (except exFAT) file system Some USB devices may not work with the system even if the devices meet the above conditions. Using iPhone/iPod devices via a USB connection is not supported. Note When USB cable connection is necessary, use the USB cable supplied with the USB device.
Help Guide Home Audio System GTK-XB72 Pairing and connecting with BLUETOOTH devices When pairing with two or more BLUETOOTH devices, perform the following pairing procedure for each device. Before operating the system, be sure to do the following: Place the BLUETOOTH device within 1 m (3.2 ft) from the system. Stop playback on the BLUETOOTH device. Turn down the volume of the BLUETOOTH device and system to avoid any sudden loud sound output from the system.
3 Perform the pairing procedure on the BLUETOOTH device to detect the system. When a list of detected devices appears on the display of the BLUETOOTH device, select [GTK-XB72]. If a passkey* is required on the display of the BLUETOOTH device, enter [0000]. * 4 The passkey may also be called a “passcode,” “PIN code,” “PIN number” or “password.” Make the BLUETOOTH connection from the BLUETOOTH device.
Related Topic Terminating the BLUETOOTH connection (After use) 4-748-029-11(1) Copyright 2019 Sony Corporation 23
Help Guide Home Audio System GTK-XB72 Connecting with an NFC-compatible device by One-touch (NFC) By touching the system with an NFC-compatible device such as a smartphone, the system turns on automatically, and then proceeds to pairing and BLUETOOTH connection. Compatible smartphones NFC-compatible smartphones with Android™ 4.1 or later installed Note Depending on your NFC-compatible BLUETOOTH device, you may need to turn on the NFC function in advance.
Help Guide Home Audio System GTK-XB72 Listening to music of an external audio device, etc. You can listen to music of an external audio device by connecting the device to the system with an audio cable (not supplied). 1 Connect an external audio device and the AUDIO/PARTY CHAIN IN L/R jacks on the system with an audio cable. 2 Press FUNCTION/ 3 Turn on the connected device, and start playback. 4 Adjust the volume. PAIRING repeatedly until the AUDIO IN indicator on the system lights up.
Hint If the BLUETOOTH connection is active between the system and a mobile phone (smartphone/iPhone) via HFP/HSP, you can use the hands-free function while listening to music of the connected external audio device. If the system satisfies the following conditions for about 15 minutes, it turns off automatically and the BLUETOOTH connection is terminated. No operation on the system.
Help Guide Home Audio System GTK-XB72 Listening to music of a USB device The system supports the following audio file formats. MP3: file extension [.mp3] WMA: file extension [.wma] AAC: file extension [.m4a/.mp4/.3gp] WAV: file extension [.wav] PAIRING repeatedly until the USB indicator on the system lights up. 1 Press FUNCTION/ 2 Connect a USB device to the 3 Press (USB) port. (play/pause) to start playback.
Help Guide Home Audio System GTK-XB72 Listening to music of a device via BLUETOOTH connection You can enjoy listening to music of a BLUETOOTH device and operate it by the system via BLUETOOTH connection if it supports the following BLUETOOTH profiles. A2DP (Advanced Audio Distribution Profile) Enables you to enjoy high-quality audio contents wirelessly.
If the communication condition is poor, the BLUETOOTH device may react incorrectly to the operations on the system. Depending on the BLUETOOTH device, it may be necessary to adjust the volume or set the audio output setting on the connected device. Noise or sound interruption may occur depending on the BLUETOOTH device connected with the system, the communication environment or the usage environment.
Help Guide Home Audio System GTK-XB72 Selecting the BLUETOOTH audio streaming playback quality (Codec) This system enables you to perform playback settings of, not only SBC, but also AAC and LDAC, so that you can enjoy high quality sound via BLUETOOTH connection. 1 Hold down FUNCTION/ PAIRING and + (volume) for more than 5 seconds. When the codec is switched to [SBC], the Audio IN indicator flashes once. When the codec is switched to [Auto], the Audio IN indicator flashes 3 times.
Help Guide Home Audio System GTK-XB72 Terminating the BLUETOOTH connection (After use) When you finish playing music with the BLUETOOTH device, perform any of the following operations to terminate the BLUETOOTH connection. Turn off the BLUETOOTH function on the BLUETOOTH device. For details, refer to the operating instructions supplied with the device. Turn off the BLUETOOTH device. Turn off the system.
Help Guide Home Audio System GTK-XB72 Connecting this system with multiple BLUETOOTH devices (Multi-device connection) Up to 3 BLUETOOTH devices can be connected to the system at the same time. When one of the devices starts playing back while playing back music on another device, the system switches the output and starts outputting the sound from the newly connected device. 1 to To pair with a second or third device, repeat steps devices.
Help Guide Home Audio System GTK-XB72 Turning on or off the BLUETOOTH signal You can connect to the system from a paired BLUETOOTH device when the system’s BLUETOOTH signal is set to on. At the time of purchase, this setting is set to on. 1 Hold down W.PARTY CHAIN/ LIGHT and (power) for about 5 seconds. When the BLUETOOTH signal is set to off, the Audio IN indicator flashes once. When the BLUETOOTH signal is set to on, the Audio IN indicator flashes 3 times.
Help Guide Home Audio System GTK-XB72 Connecting multiple audio systems (Wired Party Chain function) You can connect multiple audio systems in a chain to create a more exciting party environment and produce higher sound output. One activated system in the chain serves as the “Party Host” and shares music. Other systems become “Party Guests” and play the same music as that being played by the “Party Host.
A: First system (Party Host) B: Second system (Party Guest) C: Last system* (Party Guest) D: Continue the connection until the last system. * Connect the system which is not equipped with Wired Party Chain function at the last system, otherwise the chain will stop at that system. Be sure to select the AUDIO IN function on this last system. The last system is not connected to the first system.
Help Guide Home Audio System GTK-XB72 Enjoying music playback with multiple audio systems (Wired Party Chain function) You can enjoy music using the wired multiple audio systems. 1 Turn on all the systems. 2 Adjust the volume on each system. 3 Activate the Wired Party Chain function on the system to be used as the Party Host. Example: When using this system as the Party Host 1. Press FUNCTION/ PAIRING repeatedly to select the function you want.
Changing the volume level and sound effect on the Party Host will not affect the output on the Party Guests. You can select another system as the new Party Host only after the Wired Party Chain function has been activated on all the systems in the chain. If the selected system does not become the new Party Host after a few seconds, repeat step For details of operations on other systems, refer to the operating instructions for the systems.
Help Guide Home Audio System GTK-XB72 Enjoying wireless playback using multiple audio systems (Wireless Party Chain function) By connecting multiple devices compatible with the Wireless Party Chain function, you can liven up parties with loud volume. Compatible devices: SRS-XB21, SRS-XB31, SRS-XB41, SRS-XB20, SRS-XB30, SRS-XB40, MHC-V82D, MHC-V72D, MHC-V42D, MHCV02, GTK-XB72, GTK-XB60, GTK-XB90 Before operating the system, make sure that all systems to be connected within 1 m (3.2 ft) of the device.
Hint Connect the second system within 1 minute. After 1 minute or more, the system setting is canceled. 3. To connect additional systems, repeat steps – 1 to 2. Hint When connecting a third or more systems, connect each one within 30 seconds of connecting the previous system. After 30 seconds or more, the system cannot be connected. If you want to add another system after connecting (30 seconds or more), press and hold W.PARTY CHAIN/ LIGHT on the first system, then operate steps – 1 to 2.
Help Guide Home Audio System GTK-XB72 Terminating the Wireless Party Chain function To terminate all connections and exit the Wireless Party Chain function 1 Press FUNCTION/ PAIRING or turn the power off on the Party Host. To terminate only one system Press W.PARTY CHAIN on the Party Guest you want to leave.
Help Guide Home Audio System GTK-XB72 Listening to music wirelessly with two systems (Speaker Add function) To use this function, two GTK-XB72 systems are required.* By connecting two systems via BLUETOOTH wireless technology, you can enjoy music in a more powerful way. You can also select an audio output between double mode (in which the two systems play the same sound) and stereo mode (stereo sound).
6 Activate the pairing mode on the system [A], and then perform the BLUETOOTH connection with a BLUETOOTH device. For details on the pairing, see the following topics. Pairing and connecting with BLUETOOTH devices Connecting with an NFC-compatible device by One-touch (NFC) 7 Start playback on the BLUETOOTH device and adjust the volume. For details, see Listening to music of a device via BLUETOOTH connection. Volume adjustments made on either one of the systems are also reflected on the other system.
Related Topic Switching between double mode and stereo mode (Speaker Add function) Terminating the Speaker Add function 4-748-029-11(1) Copyright 2019 Sony Corporation 43
Help Guide Home Audio System GTK-XB72 Switching between double mode and stereo mode (Speaker Add function) Using two systems, you can switch between the double mode, where the same sound is played back on both systems, and the stereo mode, where one system outputs the left channel sound and the other system outputs the right channel sound for stereo playback. 1 Press ADD on either of the systems to change the audio reproduction.
Double mode: The same sound is played back on both systems. Stereo mode (Left/Right): The left channel sound is played back on one system, and the right channel sound is played back on the other system. Stereo mode (Right/Left): Switches the channel of the two systems (left channel/right channel) and plays back.
Help Guide Home Audio System GTK-XB72 Terminating the Speaker Add function To terminate the Speaker Add function, follow the procedure below. 1 Press ADD on the system. The ADD indicator will be turned off. Hint You can also terminate the Speaker Add function by pressing FUNCTION on the system. Unless you terminate the function, the system will try to establish the last made connection next time you turn on the system.
Help Guide Home Audio System GTK-XB72 Listening to music of an external audio device, etc. You can listen to music of an external audio device by connecting the device to the system with an audio cable (not supplied). 1 Connect an external audio device and the AUDIO/PARTY CHAIN IN L/R jacks on the system with an audio cable. 2 Press FUNCTION/ 3 Turn on the connected device, and start playback. 4 Adjust the volume. PAIRING repeatedly until the AUDIO IN indicator on the system lights up.
Hint If the BLUETOOTH connection is active between the system and a mobile phone (smartphone/iPhone) via HFP/HSP, you can use the hands-free function while listening to music of the connected external audio device. If the system satisfies the following conditions for about 15 minutes, it turns off automatically and the BLUETOOTH connection is terminated. No operation on the system.
Help Guide Home Audio System GTK-XB72 Adding a live sound effect (LIVE Sound) You can add a live sound effect (LIVE Sound) to music. At the time of purchase, the LIVE Sound mode is set to off. 1 Press LIVE to turn on/off the LIVE Sound mode. The LIVE indicator lights up.
Help Guide Home Audio System GTK-XB72 Reinforcing bass sound and creating more powerful sound（EXTRA BASS） You can reinforce bass sound and listen to more powerful sound (EXTRA BASS). At the time of purchase, the EXTRA BASS mode is set to on. 1 Press EXTRA BASS to turn on/off the EXTRA BASS mode. The EXTRA BASS indicator lights up in red.
Help Guide Home Audio System GTK-XB72 Listening to FM radio Before listening the FM radio, you need to extend the FM radio antenna on the system and tune in to an FM radio station to which you want to listen. 1 Extend the FM radio antenna on the system and adjust its length and angle for optimum reception. 2 Press FUNCTION/ 3 Press TUNING +/– repeatedly to tune in to a station to which you want to listen. PAIRING repeatedly until the TUNER indicator lights up.
If scanning does not stop, press TUNING +/– on the system to stop scanning. Then, perform manual tuning by following the steps above. Notes on handling the FM antenna When adjusting the length, hold the antenna by the thickest part and top, and extend/retract it slowly. When adjusting the direction, hold the antenna by the thickest part and rotate it. If you move the antenna by the top or apply strong force, it may break. Handle the antenna with care.
Help Guide Home Audio System GTK-XB72 Presetting radio stations You can store up to 20 FM stations as your favorite stations. Hint To use this function, make sure “Sony | Music Center” app has been installed to your BLUETOOTH device. 1 Tap [Music Center] on your smartphone, iPhone, etc. to start up the application. 2 Tap [GTK-XB72]. 3 Tap [FM Tuner]. 4 Press TUNING +/- on the system or want to preset.
Each time you press TUNING +/–, the frequency of the FM tuner will be read out in English. It will not be read out when using “Sony | Music Center” for tuning in. 5 Tap at the top of the screen. 6 Tap the button at the right end of the preset number you want. If another station is already assigned to the selected preset number, that station is replaced by the new one. To listen to the preset station Tap the Preset / button on “Sony | Music Center” to select the preset number you want.
Help Guide Home Audio System GTK-XB72 Receiving a call You can enjoy hands-free calls with a BLUETOOTH mobile phone that supports HFP (Hands-free Profile) or HSP (Headset Profile). To use this function, make sure that a BLUETOOTH connection has been established. Operations may vary depending on the BLUETOOTH mobile phone. Refer to the operating instructions supplied with the mobile phone. Note For Apple iOS devices, the system is compatible with iOS 10.0 or later.
3 Press (play/pause)/ (call) to end the call.
Help Guide Home Audio System GTK-XB72 Making a call You can enjoy hands-free calls with a BLUETOOTH mobile phone that supports HFP (Hands-free Profile) or HSP (Headset Profile). To use this function, make sure that a BLUETOOTH connection has been established. Operations may vary depending on the BLUETOOTH mobile phone. Refer to the operating instructions supplied with the mobile phone. Note For Apple iOS devices, the system is compatible with iOS 10.0 or later.
3 Press (play/pause)/ (call) to end the call. To switch the phone call output from the system to the mobile phone and vice versa Hold down (play/pause)/ (call) while talking. Hint If your BLUETOOTH mobile phone supports both HFP and HSP, set it to HFP. If you were listening to music before the call, playback will resume when the call ends. Operations may vary depending on the BLUETOOTH mobile phone. Refer to the operating instructions for your mobile phone.
Help Guide Home Audio System GTK-XB72 What you can do with “Sony | Music Center” “Sony | Music Center” is an app for controlling Sony audio devices which are compatible with “Sony | Music Center” using your smartphone/iPhone. For details about “Sony | Music Center,” refer to the following URL: https://www.sony.
Help Guide Home Audio System GTK-XB72 Installing “Sony | Music Center” Install “Sony | Music Center” on your smartphone, iPhone, etc. from the App Store or on Google Play. 1 Download “Sony | Music Center” on Google Play or the App Store and install it. 2 When the installation is complete, start “Sony | Music Center.” Hint Depending on your contract, downloading the app may require communication charges.
Help Guide Home Audio System GTK-XB72 What you can do with “Fiestable” “Fiestable” is an app for operating Sony audio devices compatible with “Fiestable” from smartphones, iPhone, etc. Operations that can be performed on the system with “Fiestable” DJ Control DJ sound effects can be added. Illumination You can control lighting of the system with more settings. Motion Control You can operate the system by shaking the smartphone, iPhone, etc. Party Light You can set the lighting function.
Help Guide Home Audio System GTK-XB72 Installing “Fiestable” Install “Fiestable” on your smartphone, iPhone, etc. on Google Play or the App Store. 1 Download “Fiestable” on Google Play or the App Store and install it. 2 When the installation is completed, start “Fiestable” from the “Sony | Music Center” screen.
Help Guide Home Audio System GTK-XB72 Using the voice assist function (Google app) By using the Google app feature that comes with the Android smartphone, you can speak to the system’s microphone to operate the Android smartphone. The following shows how to use the Google app. 1 Select the Google app for [Assist App] in [Assist & Voice input]. On the Android smartphone, select [Settings] - [Apps]. A gear icon appears in the top-right corner of the display.
Help Guide Home Audio System GTK-XB72 Using the voice assist function (Siri) By using the Siri function that comes with the iPhone/iPod touch, you can speak to the system’s microphone to operate the iPhone/iPod touch. The following shows how to use Siri. 1 Turn on Siri. On iPhone/iPod touch, select [Settings] - [Siri] to turn on Siri. The operation above is an example. For details, refer to the operating instructions supplied with the iPhone/iPod touch.
Help Guide Home Audio System GTK-XB72 Using an external microphone You can output your voice from the system by connecting a dynamic microphone with a normal plug (not supplied). 1 Turn the MIC level knob to MIN to reduce the microphone volume level. 2 Connect an external microphone to the MIC jack on the system. 3 Adjust the volume using the MIC level knob. 4 Speak or sing into the connected microphone.
Help Guide Home Audio System GTK-XB72 Using the Voice Guidance You can hear Voice Guidance when the system enters the BLUETOOTH pairing mode or a BLUETOOTH device is being connected or disconnected from the system. 1 Turn on the system. 2 Tap [Music Center] on your smartphone, iPhone, etc. to start up the application. 3 Tap [GTK-XB72]. 4 Tap [Settings]. 5 Tap [Power Option]. 6 Tap [VOICE GUIDANCE]. 7 Tap [OFF] to set the Voice Guidance mode to off.
Help Guide Home Audio System GTK-XB72 Listening to built-in sound demonstration Hold down EXTRA BASS for more than 3 seconds while the system is turned on. The USB function is automatically selected and the USB indicator on the system lights up. Then, the built-in sound demonstration is played back. To stop the demonstration Press FUNCTION/ PAIRING repeatedly to select the function other than the USB function.
Help Guide Home Audio System GTK-XB72 About the indicators (power) indicator Turns off The system is turned off. Lights up (green) The system is turned on. Lights up (amber) The system is turned off, and the BLUETOOTH standby mode is turned on. (BLUETOOTH) indicator Lights up BLUETOOTH connection is established. Flashes quickly The system enters the pairing mode. Flashes slowly The system is waiting for a BLUETOOTH device to connect to.
Lights up The Wireless Party Chain function is used on the system. LIVE indicator Lights up The LIVE Sound mode is turned on. Turns off The LIVE Sound mode is turned off. EXTRA BASS indicator Lights up The EXTRA BASS mode is turned on. Turns off The EXTRA BASS mode is turned off.
Help Guide Home Audio System GTK-XB72 About the BLUETOOTH wireless technology The BLUETOOTH wireless technology operates within a range of about 10 m (about 32 ft). Maximum communication range Maximum communication range may shorten under the following conditions. There is an obstacle such as a person, metal, or wall between the system and BLUETOOTH device. A wireless LAN device is in use near the system. A microwave oven is in use near the system.
4-748-029-11(1) Copyright 2019 Sony Corporation 71
Help Guide Home Audio System GTK-XB72 On Copyrights Android, Google Play and other related marks and logos are trademarks of Google LLC. The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License. MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
Help Guide Home Audio System GTK-XB72 Customer support websites You can access the following customer support websites to get support information about your system. For customers in the Americas: https://www.sony.com/am/support For customers in Europe: https://www.sony.eu/support For customers in other countries/regions: https://www.sony-asia.
Help Guide Home Audio System GTK-XB72 What can I do to solve a problem? If the system does not function as expected, try the following steps to resolve the issue. Find the symptoms of the issue in this Help Guide and try any corrective actions listed. Reset the system. (See System does not operate properly..) Look up information on the issue on the customer support website. Access the support websites to get support information about your system.
Help Guide Home Audio System GTK-XB72 The power does not turn on. Check that the AC power cord (mains lead) is connected to the AC IN jack on the rear of the system.
Help Guide Home Audio System GTK-XB72 The system has entered standby mode. This is not a malfunction. The system enters standby mode automatically in about 15 minutes when there is no operation or audio signal output.
Help Guide Home Audio System GTK-XB72 There is no sound. Adjust the volume. Check the connection of the optional equipment, if any. Turn on the connected equipment.
Help Guide Home Audio System GTK-XB72 There is severe hum or noise. Move the system away from sources of noise. Connect the system to a different wall outlet. Install a noise filter (not supplied) to the AC power cord (mains lead). Turn off surrounding electrical equipment. Move the system away from the neon signs or fluorescent light.
Help Guide Home Audio System GTK-XB72 A clicking sound is heard when the system is turned on. This is the operating sound and it occurs when the system is turned on or off, for example. This is not a malfunction.
Help Guide Home Audio System GTK-XB72 Playback does not start. Turn off the system and reconnect the USB device, then turn on the system. Check the information on the website about compatible USB devices.
Help Guide Home Audio System GTK-XB72 Files cannot be played back. The data is not stored in the supported format. USB devices formatted with file systems other than FAT16 or FAT32 are unsupported. This system supports FAT16 and FAT32, but some USB devices may not support all of these FAT. For details, refer to the operating instructions of each USB device or contact the manufacturer. If you use a partitioned USB device, only files on the first partition can be played back.
Help Guide Home Audio System GTK-XB72 There is no sound during USB playback. The USB device is not connected correctly. Turn off the system and reconnect the USB device, then turn on the system. The system does not support the audio file format.
Help Guide Home Audio System GTK-XB72 There is noise, skipping, or distorted sound during USB playback. You are using an unsupported USB device. Check the information on the website about compatible USB devices. Turn off the system and reconnect the USB device, then turn on the system. The music data itself contains noise, or the sound is distorted. Noise may have been entered during music creation process using the computer. Create the music data again.
Help Guide Home Audio System GTK-XB72 It takes a long time before playback starts. The reading process can take a long time in the following cases. There are many folders or files on the USB device. The file structure is extremely complex. The memory capacity is excessive. The internal memory is fragmented.
Help Guide Home Audio System GTK-XB72 The USB device is not recognized. Turn off the system and reconnect the USB device, then turn on the system. The USB device is not working properly. Refer to the operating instructions of the USB device on how to deal with this problem.
Help Guide Home Audio System GTK-XB72 There is severe hum or noise, or stations cannot be received. Change antenna location and its orientation to obtain good reception. Turn off nearby electrical equipment. Radio may not be received depending on the radio wave conditions or the housing environment in your area. Poor reception: Far from windows, between buildings, etc. Good reception: Near windows, etc.
Help Guide Home Audio System GTK-XB72 The stereo FM reception is noisy. Change the stereo sound to the monaural sound. To change the setting, hold down (next) and W.PARTY CHAIN/ (“Monaural”). You will lose the stereo effect, but reception will improve. LIGHT until you hear the voice guidance Note To change the monaural sound to the stereo sound, hold down voice guidance (“Stereo”). (next) and W.
Help Guide Home Audio System GTK-XB72 Pairing cannot be performed. Move the BLUETOOTH device closer to the system. Pairing may not be possible if other BLUETOOTH devices are present around the system. In this case, turn off the other BLUETOOTH devices. Make sure to enter the correct passkey when selecting the system’s name (this system) on the BLUETOOTH device.
Help Guide Home Audio System GTK-XB72 The BLUETOOTH device cannot detect the system. Check if the BLUETOOTH signal is turned on.
Help Guide Home Audio System GTK-XB72 Connection is not possible. The BLUETOOTH device you attempted to connect does not support the A2DP profile, and cannot be connected with the system. Enable the BLUETOOTH function of the BLUETOOTH device. Establish a connection from the BLUETOOTH device. The pairing registration information has been erased. Perform the pairing operation again.
Help Guide Home Audio System GTK-XB72 iPhone/iPod cannot be connected with the system. The system is compatible with iOS 10.0 or later.
Help Guide Home Audio System GTK-XB72 The sound skips or fluctuates, or the connection is lost. The system and the BLUETOOTH device are too far apart. If there are obstacles between the system and your BLUETOOTH device, remove or avoid the obstacles. If there is equipment that generates electromagnetic radiation, such as a wireless LAN, other BLUETOOTH device, or a microwave oven nearby, move them away. Select the appropriate audio codec option.
Help Guide Home Audio System GTK-XB72 The sound of your BLUETOOTH device cannot be heard on this system. Increase the volume on your BLUETOOTH device first, then adjust the volume using –/+ (volume).
Help Guide Home Audio System GTK-XB72 There is severe hum, noise, or distorted sound. If there are obstacles between the system and your BLUETOOTH device, remove or avoid the obstacles. If there is equipment that generates electromagnetic radiation, such as a wireless LAN, other BLUETOOTH device, or a microwave oven nearby, move them away. Turn down the volume of the connected BLUETOOTH device.
Help Guide Home Audio System GTK-XB72 Wired Party Chain function cannot be activated. Check the connections. Make sure the audio cables are connected correctly.
Help Guide Home Audio System GTK-XB72 Wired Party Chain function does not work properly. Turn off the system. Then, turn it on again to activate the Wired Party Chain function. Check if the BLUETOOTH signal is turned on.
Help Guide Home Audio System GTK-XB72 BLUETOOTH device cannot be connected to the system during Wireless Party Chain function. After connecting all the systems, perform the pairing and connecting operations between the BLUETOOTH device and the Party Host.
Help Guide Home Audio System GTK-XB72 BLUETOOTH device cannot be connected to the system during Speaker Add function. After connecting two same model systems, perform the pairing and connecting operations between the BLUETOOTH device and the Host system.
Help Guide Home Audio System GTK-XB72 There is no microphone sound. Turn the MIC level knob to adjust the microphone volume level. Make sure the microphone is turned on.
Help Guide Home Audio System GTK-XB72 There is acoustic feedback. Reduce the volume. Move the microphone away from the system or change the direction of the microphone.
Help Guide Home Audio System GTK-XB72 System does not operate properly. Reset the system to factory default settings. 1 Unplug the AC power cord (mains lead) from the system, then plug it back in. 2 Press 3 Hold down FUNCTION/ (power) to turn on the system. PAIRING and – (volume) on the system for more than 5 seconds.
