Sony DSX-M50BT, Service Manual

Page: 11 / 34

DSX-M50BT
11
SECTION 4
TEST MODE
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 on
the remote commander in order of the [4]
t
[5]
t
[1] (press
only the [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 [SOURCE OFF] button for 1 second.
MICROPHONE AUDIO LOOPBACK
To con fi rm the state of the internal 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 [SOURCE
OFF] 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 (“ALBM” is
displayed in the liquid crystal display).
LOOP BACK ALBM
ON Lit
OFF None