Sony WH-1000XM4 Service Manual page 19

WH-1000XM4
4. Check the Operation of Headset
After completing the writing of each information to the MAIN L
board and NFC L board, be sure to check the operation of headset
according to the following.
Procedure:
Note 1: When the headphone exclusive application (Headphones Connect)
is not installed on the smartphone, installing the headphone exclu-
sive application (Headphones Connect) in advance, and then check
it.
Note 2: If already power is turned on, turn the power off once, and then
check it.
1. Attach the headset.
2. Press the [1] button on the headset for about 2 seconds until the
blue indicator of left channel side fl ashes, turn the power on, and
check the language of voice guidance.
Note 3: When the battery level is low, the red indicator fl ashes for about
15 seconds. In that case, press the [1] button for about 2 seconds
to turn off the power of headset, connect the headset to a USB AC
adapter or a PC with a USB Type-C cable, and charge for a while.
Press the [1] button
for about 2 seconds.
Voice guidance
When set to "CN"
When set to other than "CN" : English
Note 4: If you cannot hear the voice guidance
in the above language, the correct
destination information has not been
written. Write each information again.
3. Turn on the NFC function of the NFC compatible smartphone
installed the headphone exclusive application (Headphones Con-
nect).
(For details, refer to the instruction manual of NFC compatible
smartphone. The fi gure below is a reference example)
19
: Chinese
– Continued on upper right –
4. Touch the N-mark part of the NFC compatible smartphone to
the N-mark part of headset, the left channel side indicator (blue)
fl ashing changes from slow to fast, and the connection is com-
pleted.
(After connection is complete, the left channel side indicator
(blue) fl ashing is return to slow)
Note 5: If the smartphone screen is locked, unlock it and then touch it.
5. Start the headphone exclusive application (Headphones Con-
nect) on the smartphone, and check that headset of same color as
the main unit color is displayed on the smartphone screen.
6. Press the [CUSTOM] button repeatedly to change the noise can-
celing function ON or OFF, and check that noise canceling ef-
fect is fully obtained and that there is no diff erence in the noise
canceling eff ect between the left and right channels.
Note 6: Adjust the amount of noise canceling with Headphones Connect,
and check the eff ect.
[CUSTOM]
button
7. Remove the headset from your ears, initialize the headset.
Note 7: Refer to "INITIALIZING METHOD" on page 5 for initializing
method.
This thoroughly completes the writing of necessary information af-
ter replacing the MAIN L board.
Sony CONFIDENTIAL
For Authorized Servicer
Blue
(slow)
(N-mark touch)
(fast)
(connected)
(slow)
same
color
SYS SET