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MEX-M72BT/N5300BT/N7300BD
SETTING THE TEST MODE
Setting 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
4] → [MIC 5] → [ V ALBUM 1] (press only the
order of the [
[ V ALBUM 1] button for 2 seconds).
[
4]
press
2. It is set to the test mode, and all segments of the liquid crystal
display light.
Screen display
< >
EQ
APP HD AF TA FM-LINK ANNC
Releasing method:
Press the [ OFF SRC] button for 1 second.
[
OFF SRC]
press for
1 second
MICROPHONE AUDIO LOOPBACK
To confi rm the state of the external microphone used when a hands-
free function is used, the microphone audio is output from the speak-
er.
The breakdown judgment of the microphone can be done without
connecting H/F with the smartphone or cellular phone.
Procedure:
1. Enter the test mode.
2. Press the [ OFF SRC] button to select the "BT PHONE" func-
tion.
[
OFF SRC]
press
3. On/off of the microphone audio loopback function changes
whenever the [ALBUM v 2] button is pressed (" " (repeat
mark) is displayed on the liquid crystal display).
LOOPBACK
ON
OFF
41
TEST MODE
[MIC 5]
[V ALBUM
1] press
press
(Press for 2 seconds)
repeat mark
EQ
[ALBUM v
2]
press
(repeat mark)
Lit
None
SECTION 4
Sony CONFIDENTIAL
For Authorized Servicer
SYS SET
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