Test Mode - Sony MEX-N5100BE Service Manual

SETTING THE TEST MODE
Setting method:
1. In the state of source off (the clock is displayed), enter the test
mode by pressing the buttons in order of the [
5] t [V ALBUM 1] (press only the [V ALBUM 1] button for
two seconds).
2. It is set to the test mode, and all segments of the liquid crystal
display light.
Releasing method:
Press the [ OFF SRC] button for 1 second.
MICROPHONE AUDIO LOOPBACK
To confi rm the state of the external microphone used when a
handsfree function is used, the microphone audio is output from
the speaker.
The breakdown judgment of the microphone can be done without
connecting H/F with the cellular phone.
Procedure:
1. Enter the test mode.
2. Press the [ OFF SRC] button to select the Bluetooth Phone
function.
3. On/off of the microphone audio loopback function changes
whenever the [ALBUM v 2] button is pressed (" " is dis-
played on the liquid crystal display).
LOOPBACK
ON Lit
OFF None
MEX-N5100BE/N5100BT/N5150BT
SECTION 4

TEST MODE

4] t [MIC
27 27
MEX-N5100BE/N5100BT/N5150BT