MEX-BT2600 - Sony Car Audio Service Manual (repair manual). Page 6

10.  Check that the other party’s voice can be heard from the speak-

er.

11. Check by operating the Volume that the other party’s volume 

varies.

12.  Speak to the microphone of the set to check that the other party 

can hear it. (Make sure that there is no large difference from 
normal set)

13. Press the [PUSH SELECT] button for 2 seconds to check that 

the HF turns off and the set is switched to a telephone call 
between cellular phones. (This may not function depending on 
the cellular phone)

14. Press the [PUSH SELECT] button for 2 seconds to check that 

the HF turns on and the set is switched to a telephone call be-
tween MEX-BT2600 and far end.

15. Press the [PUSH SELECT] button for a short time to check 

that a telephone call is terminated. Also, the original source is 
returned.

16. Perform ACC OFF -> ON to check if the set is reconnected 

automatically to the cellular phone.

7.  BT Audio Function Check
1.  Connect the set to the BT audio device (or cellular phone fur-

nished with BT audio function) to check that the streaming 
logo lights up.

2.  Play the BT audio device to check that a sound is generated 

from the set when the source is switched to the BT audio.

3.  Operate the set ([SEEK – /+], [6] button operation) to check if 

it can control the BT Audio.

Note: The functions that can be operated vary depending on the BT audio 

device connected.

4.  Perform ACC OFF -> ON to check if the set can be recon-

nected to the BT audio device. (Some BT audio devices may 
be reconnected automatically)

5.  With the BT audio source, press the [6] button to check if the 

streaming logo blinks and the set is reconnected to the BT audio 
device. (This function is disabled while the set is reconnected 
to a cellular phone. Accordingly, this test should be conducted 
after the power is turned on and then the HF logo lights up, or 
when about 30 seconds elapsed after the power on)

8. Initialize
This should be performed when the set is sent back to the user after 
all the checks fi nished successfully.
1.  Execute the initialization.
2.  Press the [BLUETOOTH] button for 3 seconds to check if the 

BT logo lights up.

3.  Check that the set is not connected automatically to the cellular 

phone that was connected last.

4.  With the BT audio source, check that the streaming logo does 

not blink when the [6] button is pressed.

9.  What to Do after Checking
1.  If the board does not need to be replaced
•  Return the bluetooth settings to original ones. (settings when 

the set was received from the user)

2.  If the board needs to be replaced
•  Return to the factory shipping mode.