WX-850BT/900BT/900BTM
WX-850BT/900BT/900BTM
27
27
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 in
order of the [ 4]
t
[MIC 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 [SOURCE OFF] button for 1 second.
MICROPHONE AUDIO LOOPBACK
To con
fi
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 smartphone or cellular phone.
Procedure:
1. Enter the test mode.
2. Press the [SOURCE OFF] button to select the “BT PHONE”
function.
3. On/off of the microphone audio loopback function changes
whenever the [ALBUM
v
2] button is pressed (“ ” (album
mark) is displayed on the liquid crystal display).
Screen display
AF
album mark
LOOPBACK
(album mark)
ON
Lit
OFF
None
3-7. SERVICE POSITION
CD mechanism deck
CD mechanism deck
insulating sheet
insulating sheet
stand
stand
main unit
main unit
main unit
cable flexible flat (27 core)
(length: 150 mm)
Note 2:
Do not cable flexible flat (27 core) is
damaged by the edge of the chassis.
cable flexible flat (27 core)
(length: 150 mm)
Note 2:
Do not cable flexible flat (27 core) is
damaged by the edge of the chassis.
main unit
cable flexible flat (27 core)
(length: 150 mm)
cable flexible flat (27 core)
(length: 150 mm)
CD mechanism deck
Note 3:
CD mechanical deck should
not be placed vertically.
CD mechanism deck
Note 3:
CD mechanical deck should
not be placed vertically.
main unit
cable flexible flat (27 core)
(length: 150 mm)
CD mechanism deck
Note 4:
CD mechanical deck should
not be placed upside down.
OK
OK
NG
NG
NG
Note 1:
The service position below cannot be performed with the
fl
ex-
ible
fl
at cable (length: 80 mm) used with the unit. Refer to
“NOTE OF PERFORMING THE OPERATION CHECK” in
the servicing notes, and use a long
fl
exible
fl
at cable (length:
150 mm).
Summary of Contents for WX-850BT
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