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TEST  DISCS
Use following TEST DISC (for CD) when this unit confi rms 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  OF  REPLACING  THE  KEY  BOARD
When the KEY board is defective, replace the FRONT PANEL 
(SV) (ASSY) (Ref. No. FP1).

NOTE  OF  REPLACING  THE  IC804,  IC1002  AND  IC1009  
ON  THE  MAIN  BOARD
IC804, IC1002 and IC1009 on the MAIN board cannot replace 
with single. When these parts are damaged, replace the complete 
mounted board.

2. Confi rmation After Destination Setting
Execute the following operation after completing the destination 
setting, and confi rm 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] 

t [MIC 5] t [PAUSE 6] (press only the 

[PAUSE 6] button for two seconds).

2.  In the state in which the software main version is displayed 

on the liquid crystal display (refer to following fi gure), enter 
the destination setting value display mode by pressing the [

 

DSPL MENU] button twice.

 

(Displayed characters/values in the following fi gure are ex-
ample)

3. Confi rm the alphanumeric character of 12 digits in liquid crys-

tal display is a value correctly input.

 

(Displayed characters/values in the following fi gure are ex-
ample)

4.  The resetting operation is executed by pressing the [

 

OFF 

SRC] button for 1 second after the confi rming ends, and the 
unit returns to the normal condition.

The unit ma y not function properly if the 
connectors be tween the uni t and the front panel 
are no t clean. In order to prevent  this,  detach the 
front panel and clean the connectors with 
a cotton swab . Do not apply too mu ch force. 
Otherwise,  the conne ctors may be damaged.

For sa fety, turn off  the ignition before cleaning the  
connectors, and  remo ve the key from the ignition 
sw itch.
Never touch the connectors directly with your fingers 
or with any metal  device.

You can cancel the demo nstration display which 
appear s while this unit is turned off.

The  setting is complete.

The display returns to normal  reception/ play 
mo de.

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 complete MAIN board is replaced, it is necessary to initial-
ize this unit.
Refer to the following, initialize this unit.

Note: Phonebook data and dialed/received call history can be deleted by 

executing “Bluetooth Initialize”.

Procedure:
1.  In the state of source off (the clock is displayed on the liquid 

crystal display), press the [

 

DSPL MENU] button.

2.  Rotate the control dial, and select the “SET BT”.
3.  Press the [PUSH ENTER/VOICE/

 

APP] button.

4.  Rotate the control dial, and select the “SET BT INIT”.
5.  Press the [PUSH ENTER/VOICE/

 

APP] button, and the mes-

sage “SET INIT-NO” is displayed on the liquid crystal display.

6.  Rotate the control dial clockwise, and the message “SET INIT-

YES” is displayed on the liquid crystal display.

7.  Press the [PUSH ENTER/VOICE/

 

APP] button, and the mes-

sage “INITIAL” is blinked on the liquid crystal display.

8. When “Bluetooth Initialize” is completed, the message 

“COMPLETE” is displayed on the liquid crystal display for a 
moment.

9.  Press the [MODE 

] button, and return to the state of source 

off (the clock is displayed on the liquid crystal display) mode.

OPERATION  CHECK  OF  THE  NFC  AFTER  COMPLET-
ING  THE  REPAIRS
After completing the repairs of this unit, follow the procedure below 
to check normal operation of the NFC.

Note: After checking of NFC operation, be sure to delete the pairing infor-

mation before returning this unit to the customer.

By touching the  control dial on the unit with an  
NFC* compatible  smar tphone,  the  unit is  paired  and 
connected with the smartp hone au toma tically.

*N FC (Near  Field Communication) is a  technology 

enabling short-range wireless comm unication 
between various de vices, such as  mo bile phones and 
IC tags. Th anks to the NFC function, data 
comm unication can be achieved  easily just by 
touching the relevant symbol or designated location 
on NFC compatible de vices.

For a smar tphone with Android OS 4.0 or lower 
installed, down loading the app “NFC Easy Connect” 
available at Goog le Play™ is  required.  The app may  
not be downloadable in some  countries /r egions .

For details, re fer to the operating instructions 
supplied with the sma rtphone.

Ma ke sure that  

lights up on the display of the 

unit.

To disconnect by One touc h
Touch the N-Mark  part of the un it with the N-Mark 
part of the sm artphone again.

Wh en making th e connection, handle the 
sm artphone ca refully to prevent scratches.
One touch connection is not possible when the unit is
already connected to another NFC compatible device. 
In this case,  disconnect the other device, and  ma ke 
connection with the sm artphone again.

Note 1: Depending on the connecting device, Signal-strength/Battery-

remaining 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 this unit.

1.  Search for this unit from the Bluetooth device (cellular phone), 

and confi rm whether this unit (“Sony Car Audio”) is displayed.

2.  Search for the distance of this unit and the Bluetooth device 

(cellular phone) about 5 m apart.

 Confi rm whether the Bluetooth device (or this unit) is dis-

played 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 confi rm  the 

“HF” icon ( ) lights.

5. Confi rm 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 cel-

lular phone connected with this unit.

 Confi rm the automatic change of this unit into “BT PHONE” 

source, and the change into the screen for incoming calls.

 Confi rm the ring tone is heard from the front speaker.
7.  Take a phone call (press the [CALL

 

] button), and start a 

conversation.

 Confi rm the other person voice is heard from the speaker.
 

Speak toward an external microphone at the following condi-
tion, and confi rm the other party hears its voice (An external 
microphone is connected).

 

Compare the sound quality with a normal set. Confi rm  that 
there is no big difference.

8.  Turn on ACC from off, and confi rm whether this unit connects 

Bluetooth with the cellular phone again.

Note 2:  Depending on the cellular phone, it might not reconnect automati-

cally when ACC is turned on.

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 this unit;   

 

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 this unit.

1.  Connect the Bluetooth audio device (or cellular phone with 

Bluetooth audio function) with this unit, and confi rm the “Au-
dio Streaming” icon ( ) lights.

2.  Playback Bluetooth audio. Confi rm the sound is emitted from 

this unit when this unit is switched to “Bluetooth Audio” 
source.

3. Confi rm whether Bluetooth audio can be controlled by oper-

ating this unit (the [

> M

 SEEK+], [SEEK–

  m

 

.

] and 

[PAUSE 6] buttons operation).

Note 2: Varies depending on the connected Bluetooth audio device.

8.  What to Do after Checking
•  After checking, select “SET BT INIT” from the menu list of 

this unit to execute initialization.

 

(Connected device information is deleted)

• 

This unit to be tested, external microphone of attachment

• 

Cellular phone (Recommended SEMC W880 or W910i, or se-
lect 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)

2. Preparation
• Confi rm the setting of the this unit and note down it.
•  Press the [CALL

 

] button and rotate the control dial until 

“SET PAIRING” appears, then press it, confi rm that the Blue-
tooth signal icon (

) is fl ashing.

• 

Turn on the Bluetooth function of the cellular phone.

• 

No other Bluetooth device is making a communication in the 
periphery (within 20 m).

• 

No other this unit 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.

4. Setting
Install this unit 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 appro-
priately the volume of the telephone of the other party and the 
cellular phone connected through the Bluetooth, besides the 
setup of this unit.

• 

The speaker’s voice will become loud naturally if the periph-
ery 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  INFORMATION  WRITING  METHOD
When the complete MAIN board, knob (VOL) (SV) assy or front 
panel (SV) (assy) is replaced, the writing of Bluetooth information 
is necessary.
Write the Bluetooth information according to the procedure below.

Preparation:
• Windows 

PC

• 

NFC compatible smartphone that installed the fi le manager ap-
plication (ASTRO File Manager, File Expert, etc.)

• 

USB cable for the smartphone

• 

NFCtagWriter.apk (ver.1.0.2 and above)

Note 1: The NFCtagWriter.apk is updated. When the NFCtagWriter.apk 

is prepared already, be sure to refer to the “6. Version Check 
Method of the NFC Tag Data Writing Application for the Servic-
ing” on the page 12, and check the version of NFCtagWriter.apk.

Note 2: Confi rm the method of obtaining the 

NFCtagWriter.apk 

to the 

service headquarters.

Install the NFCtagWriter.apk on the smartphone for writing of 
Bluetooth information.

Procedure:
1.  Prepare the NFCtagWriter.apk fi le on the PC.
2.  Connect the smartphone to the PC with the USB cable.
3.  Transfer the NFCtagWriter.apk to the smartphone.
4.  When tapping the “Settings” → “Security” on the screen of the 

smartphone, check the box “Unknown sources”.

5.  Disconnect the smartphone from the PC.
6. Use 

the 

fi le manager application to explore the NFCtagWriter.

apk on the smartphone.

7.  Click on the NFCtagWriter.apk to open it, and install the 

NFCtagWriter.apk to the smartphone.

8.  When tapping the “Settings” → “Security” on the screen of the 

smartphone, uncheck the box “Unknown sources”.

Movies

YouTube

Camera

Settings

Album

WALKMAN

Play Store

Browser

Maps

Media Player

Chrome

NFCtagWriter

9.  Refer to the “6. Version Check Method of the NFC Tag Data 

Writing Application for the Servicing” on the page 12, and 
check the version of NFCtagWriter.apk.

 

ver.0.9.0 

:  The use is not allowed.

 

 

  Install the NFCtagWriter.apk of ver.1.0.2 

and above.

 

ver.1.0.2 and above :  The use is allowed.

2.  Writing the NFC Tag Data
Write the NFC tag data (Bluetooth information) to the NFC mod-
ule in the knob (VOL) (SV) assy.

Procedure:
1.  Check the Bluetooth address (BD_ADDR).
 

There are following two checking methods.

 

• 

How to read from the BT module label

 

• 

How to display on the liquid crystal display by the test mode

 

Set the unit to the state where the BT module (Ref. No. IC1002 
on the MAIN board) can be seen.

 

(Refer to the “3. DISASSEMBLY” on the page 18 and after)

48D2242F241A

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