Sony XBR-65Z9D Service Manual page 55

FLOW
8. NETWORK MALFUNCTION
(2) Internal Wireless Network malfunction
Wireless Network
on the TV
Error Message appear
when the Wireless
Network is selected?
Yes
Hardware defect suspected.
Check harness
connection is OK
between WiFi and Bxx
OK
Change
Wi-Fi module
OK
Wi-Fi module
XBR-65/75/100Z9D
No
NG
Connect properly
NG
Change harness
NG
between Bxx board
and WiFi
Is the radio field
Strength too weak
or even No signal?
Yes
Change WiFi module
OK
WiFi module
OK
Loose harness
NG
Change Bxx board
OK
Main Harness
TROUBLE SHOOTING
No
Bxx Board
NG
Access Point
If Wi-Fi malfunction happens,
•
Wi-Fi module
•
Harness between WiFi and Bxx
•
Bxx board
are suspected.
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