Sony WH-1000XM4 Service Manual page 7

WH-1000XM4
Ver. 1.1
2. Write Each Information and Value to the MAIN L Board
(Serial Number, Color Information, Destination Informa-
tion, IR Calibration Value, Noise Canceling Adjustment
Value)
2-1. Check the Information of Repairing Model
It is necessary to check the information of repairing model in ad-
vance.
Check the following information.
Model name:
WH-1000XM4
WH-1000XM4
Serial number:
Note 1: Refer to following "Checking Procedure of Serial Number".
• Checking Procedure of Serial Number
Check the serial number
that is engraved on the
left inside of the
headband.
The first
number is
not "9".
Check the first number
of serial number.
The serial
The first
number at
number
time of
is "9".
purchase
Check the serial number
is unknown.
at the time of purchase
to the customer.
Checking the
serial number
at the time of
purchase is
complete.
Replace the
Discriminate the whether
headphones
headband assy
assy.
replacement or
headphones assy
replacement at inside
of service side.
Replace the
headband
assy.
Record the serial
number at the time of
purchase that you
checked to the customer.
7
Record the serial
number.
The MAIN L board
cannot be replaced.
Replace the headphones
assy with a new part.
Record the serial
number (first number "9")
that is engraved on this
unit.
– Continued on upper right –
Main unit color:
Select from the following color names.
Black (Black), Silver (Platinum Silver), Blue (Blue)
Destination code:
Select the correct destination from the following destination code.
UC (US, CND, LA), CE7 (AEP, UK), E (E, AUS, JE, RU), CN
(CH), IN (IND)
Note 2: When checking the destination, refer to "MODEL IDENTIFICA-
TION" on page 4.
2-2. Obtaining the Noise Canceling Adjustment Value and
Initial Setting Information of Repairing Model
Send the model information that prepared in the "2-1. Checking the
Information of Repairing Model" on this left to the service head-
quarter by e-mail, refer to returned e-mail from the service head-
quarter, and obtain the noise canceling adjustment value and initial
setting information.
Description example of e-mail sent to the service head-
quarter:
Note 1: The following is a description example.
Note 2: Do not insert spaces between all characters, and enter all alphanu-
meric characters.
Subject [Request]Sony_Headphones_MB_value
Body Modelname:WH-1000XM4
SerialNumber:1300108
Color:Black
Destination:CE7
Contents example of e-mail that will be returned from the
service headquarter:
Note 3: The following is a description example. The order of description
might be diff erent.
Body
Model_Name WH-1000XM4
Serial Number 1300108
Color Black
Destination CE7
FF_Gain_L -1.2
FF_Gain_R 0
FB_Gain_L 0.8
FB_Gain_R 1.6
IR Calibration 0700
Sony CONFIDENTIAL
For Authorized Servicer
SYS SET