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MEX-M72BT/N5300BT/N7300BD
Ver. 1.1
5. The Factor that One Touch Connection is Impossible
The four following factors are considered as the factor that one touch connection is impossible.
Guess and check the defective factor by each checking result.
Note: The four following factors are examples.
Bluetooth manual con-
Factor
nection check by user
1 BT module defect
knob (VOL) assy
2
defect
NFC tag data
3
writing failure
Smartphone
4
trouble
AFFIXING OF LABEL (SERIAL NUMBER)
When the panel front assy (Ref. No. FP1) is replaced, it is necessary
to affi x the label (serial number).
2 labels (serial number) are included with a new panel front assy
(Ref. No. FP1). Affi x 1 label to the rear side of the panel front assy
(Ref. No. FP1). Affi x the other one to the bottom side of main unit.
Be sure to perform this procedure, as Bluetooth will not operate cor-
rectly if the serial number of the panel front assy (Ref. No. FP1) and
main unit do not match.
In addition, since the serial number has changed, print out the page
22 and cut it and hand it with the product to the customer, when
returning the product after repairs are complete.
label (serial number)
–
Front panel assy rear view
label (serial number)
–
Main unit bottom view
(MEX-M72BT/
MEX-N5300: US, CND, E, AUS)
21
NFC tag data check
NG
OK
OK
OK
–
–
–
Main unit bottom view
(MEX-N5300: AEP, UK, EA/
MEX-N7300BD)
Bluetooth manual connec-
tion check by servicing
―
NG
NG
OK
label (serial number)
–
Sony CONFIDENTIAL
For Authorized Servicer
NFC one touch connection
check with smartphone
NG
NG
OK
NG
OK
NG
OK
NG
SYS SET
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