SONY Bluetooth Audio system WX-GT90BT- GT90BTE - GT99BT – Prior setting –
Destination code setting – Initializing Bluetooth – Demo mode
cancellation – Bluetooth hand free function check – Bluetooth audio
Function check - Power amplifier circuit - TDF8556AJ - Audio system
repair and service
Category : Car audio Repair and Service
Contents of this article
- Bluetooth function checking
- Demo mode cancellation
- Power amplifier schematic diagram
SONY WX-GT90BT- GT90BTE - GT99BT
NOTE THE MAIN BOARD OR SYSTEM
CONTROLLER (IC501) REPLACING
When the MAIN board or system controller (IC501) is replaced, the destination
setting is necessary.
Prior Setting
It is necessary to set with the remote commander so that it can operate by the
main unit.
Setting method:
1. In the state of power on, press the buttons in order of the [4] > [5] >
[6] on the remote commander (press only the [6] button for two seconds).
2. Press the buttons in order of the [ > ] - [ < ] - [ENTER] on the remote
commander.
3. Press the buttons in order of the
[ENTER] (four times) - [Down] - [ENTER] (two times) on the remote commander.
4. Setting is completed, and the unit returns to the state of source off (the
clock is displayed on the liquid crystal display).
Destination Setting
Set destination according to the procedure below.
Setting the Destination Code
1. In the state of source off (the clock is displayed), enter the test mode by
pressing the buttons in order of the [ 4] - [MIC/ ZAP 5] - [PAUSE 6] (press
only the [PAUSE 6] button for two seconds).
2. In the state in which the system controller version is displayed on the
liquid crystal display , enter the destination setting mode by pressing the
buttons in order of the [Forward > SEEK+]
- [SEEK– rewind ] - [PUSH ENTER/MENU/ APP]. (Displayed
characters/values in the following figure are example).
3. Input the alphanumeric character of 12
digits of “F XXXXXX” displayed on the liquid crystal display, and execute the
destination setting.
Note: Refer to following “2-3. Entering the Destination Code” for
operation method.
4. The resetting operation is executed by pressing the [SOURCE OFF] button for
1 second after the setting ends, and the unit returns to the normal condition.
Display in Destination Setting
Mode
Entering the Destination Code
Method of operation by main unit
1. Rotate the control dial, and select the
alphanumeric character of “0 to F”.
2. The digit advances by pressing the [PUSH ENTER/MENU/ APP] or [Forward > SEEK+] button. The digit returns by
pressing the [MODE ] or [SEEK– Rewind ] button.
3. The setting is completed by pressing the [PUSH ENTER/ MENU/ APP] button, and
the initialization operation is done.
Method of operation by remote
commander
1. Press the [ UP] or [ DOWN] button, and
select the alphanumeric character of “0 to F”.
2. The digit advances by pressing the [ RIGHT ] button. The digit returns by
pressing the [ LEFT ] button.
3. The setting is completed by pressing the [ENTER] button, and the
initialization operation is done.
Confirmation After
Destination Setting
Execute the following operation after completing the destination setting, and
confirm a correct destination was set.
Destination setting checking method:
1. In the state of source off (the clock is displayed on the liquid crystal
display), enter the test mode by pressing the buttons in order of the [ 4] - [MIC/ZAP
5] - [PAUSE 6] (press only the [PAUSE 6] button for two seconds).
2. In the state in which the system controller version is displayed on the
liquid crystal display (refer to following figure), enter the destination
setting value display mode by pressing the [DSPL SCRL] button three times. (Displayed
characters/values in the following figure are example)
3. Confirm the alphanumeric character of 12
digits in liquid crystal display is an value correctly input. (Displayed
characters/values in the following figure are example)
4. The resetting operation is executed by
pressing the [SOURCE OFF] button for 1 second after the confirming ends, and
the unit returns to the normal condition.
TEST DISCS
Use following TEST DISC (for CD) when this set confirms
the
operation and checks it.
Part No. Description
3-702-101-01 DISC (YEDS-18), TEST
4-225-203-01 DISC (PATD-012), TEST
NOTE FOR REPLACEMENT OF THE BT
BOARD
When repairing, the complete BT board should be replaced since any parts in the
BT board cannot be repaired.
NOTE FOR REPLACEMENT OF THE SERVO BOARD
When repairing, the complete SERVO board should be replaced since any parts in
the SERVO board cannot be repaired.
NOTE FOR REPLACEMENT OF THE SENSOR BOARD
When the SENSOR board is defective, exchange the MECHANICAL BLOCK ASSY.
IMPORTANT NOTE OF “INITIALIZING”
The purpose of “Bluetooth Initialize” is to initialize the Bluetooth connection
history (HF/Audio Streaming). (To delete the device information for the devices
that you connected to when searching, etc.)
When the complete BT board or complete MAIN board (including BT board) are
replaced, it is necessary to initialize this unit.
Note: Phonebook data and dialed/received call history can be deleted by executing
“Reset.”
Initializing Bluetooth Settings
You can initialize all the Bluetooth related settings (pairing information,
preset number, device information, etc.) from this unit.
1 Press and hold SOURCE/OFF for 1 second to turn off the power.
2 Press MENU , rotate the control dial until "BT" appears,
then press it. The menu list appears.
3 Rotate the control dial to select “BT INIT,” then press it. The
confirmation appears.
4 Rotate the control dial to select “INITYES,” then press it. “INITIAL”
flashes while initializing the Bluetooth settings; “COMPLETE” appears when
initializing has finished.
5
Press (BACK) to return to the previous display.
Note
When disposing of this unit, preset numbers should be deleted
with “BT INIT.”
NOTE ON CONNECTION
If speaker and amplifier are not connected correctly, “FAILURE” appears in the
display. In this case, make sure the speaker and amplifier are connected
correctly.
CANCELLING THE DEMO MODE
You can cancel the demonstration display which
appears while this unit is turned off.
1 Press MENU , rotate the control dial until “DISPLAY” appears, then
press it.
2 Rotate the control dial until “DEMO” appears, then press it.
3 Rotate the control dial to select “DEMO-OFF,” then press it. The
setting is complete.
4 Press (BACK) to return to the previous display.
The display returns to normal reception/ play mode.
BLUETOOTH FUNCTION CHECKING
METHOD USING A CELLULAR PHONE
Required Equipment
# Set to be tested (WX-GT90BT/GT90BTE/GT99BT), external microphone of
attachment
# Cellular phone (Recommended SEMC W880 or W910i, or select from connectable
cellular phones list)
# Bluetooth audio devices (SONY NWZ-A826, or select from connectable cellular
phones/audio devices list)
# Speaker connection (at least Front L/R ch)
# DC power supply (12 V)
Preparation
# Confirm the setting of the WX-GT90BT/GT90BTE/GT99BT, and note down it.
# Press the [CALL] button and rotate the control dial until “SET PAIRING”
appears, then press it, confirm that the Bluetooth signal icon is flashing.
# Turn on the Bluetooth function of the cellular phone.
Test Environment
# No other Bluetooth device is making a communication in the periphery (within
20 m).
# No other WX-GT90BT/GT90BTE/GT99BT are supplied with electric power.
# There are no two or more wireless LAN access points in the periphery (with 50
m) (one is OK).
# The set should be tested in a place such as a meeting room, free from ambient
noise.
# The speaker at the far end should be in a place such as another meeting room
separated acoustically.
Setting
Install the WX-GT90BT/GT90BTE/GT99BT on the desktop
5. Precautions
Beware of the following points when conducting the talking
test:
# There is no fault if a talking can be made by adjusting
appropriately the volume of the telephone of the other party and the cellular
phone connected through the Bluetooth, besides the setup of
WX-GT90BT/GT90BTE/GT99BT.
# The speaker’s voice will become loud naturally if the
periphery is noisy, or become low if quiet (even though the speaker intents to
talk on the same volume level).
# The speaker’s voice will become loud naturally if the
other party’s voice is loud.
Bluetooth Phone (Hands Free)
Function Check
Note 1: Depending on the connecting device,
Signal-strength/Batteryremaining indications might not be displayed. Or,
depending on the connecting device, the levels of indications are shown
incorrectly. Even if you see no indications or wrong indications, they are not failures
of WX-GT90BT/GT90BTE/GT99BT.
1. Search for this unit from the Bluetooth device (cellular phone), and confirm
whether this unit (“Sony Automotive”) is displayed.
2. Search for the distance of this unit and the Bluetooth device (cellular
phone) about 5 m apart. Confirm whether the Bluetooth device (or this unit) is
displayed after it searches.
3. Do the pairing of the cellular phone and this unit (input of passkey).
4. Connect the cellular phone with this unit, and confirm the “HF” icon lights.
5. Confirm the connection continues even if the distance of the cellular phone
and this unit is separated by about 5 m.
6. Set this unit besides the “BT PHONE” source, and call the cellular phone
connected with this unit. Confirm the automatic change of this unit into “BT
PHONE” source, and the change into the screen for incoming calls. Confirm the
ring tone is heard from the front speaker.
7. Take a phone call (press the [CALL ] button), and start a conversation.
Confirm the other person voice is heard from the speaker. Speak toward an
external microphone at the following condition, and confirm the other party
hears its voice (An external microphone is connected). Compare the sound
quality with a normal set. Confirm that there is no big difference.
8. Turn on ACC from off, and confirm whether this set connects Bluetooth with
the cellular phone again. Note 2: Depending on the cellular phone, it
might not reconnect automatically.
Bluetooth Audio Function Check
Note 1: Depending on the connecting BT Audio device, track information (e.g.
track name, playback time) can be on display.
If the device doesn’t support AVRCP1.3, or, if AVRCP1.3 feature of the device
has not been validated with WX-GT90BT/GT- 90BTE/GT99BT, the track information
won’t be shown.
Even if there is no track information on display during playback of an AVRCP1.3
device, it is not a failure of WX-GT90BT/GT- 90BTE/GT99BT.
1. Connect the Bluetooth audio device (or cellular phone with Bluetooth audio
function) with this unit, and confirm the “Audio Streaming” icon lights.
2. Playback Bluetooth audio. Confirm the sound is emitted from this unit when
this unit is switched to “Bluetooth Audio” source.
3. Confirm whether Bluetooth audio can be controlled by operating this unit
(the [SEEK+ Forward ], [Rewind SEEK–] and [PAUSE 6] buttons operation).
Note 2: Varies depending on the connected Bluetooth audio device.
What to Do after Checking
# After checking, select “BT INIT” from the menu list of this unit to execute
initialization. (Connected device information is deleted)
POWER AMPLIFIER CIRCUIT DIAGRAM
USING IC TDF8556AJ/N5
CLICK ON THE IMAGE TO ZOOM IN
Smart TV Bluetooth Headphone Connections
