Read Sony KDL-60W840B / KDL-60W850B / KDL-60W855B / KDL-60W857B / KDL-60W858B / KDL-70W830B / KDL-70W840B / KDL-70W850B / KDL-70W855B / KDL-70W856B / KDL-70W857B Service Manual online
RB2G
CHASSIS
W830B/ W840B/ W850B/ W855B
W856B/ W857B
Troubleshooting
3-10. Wireless Network malfunction
1) Internal Wireless Network malfunction
1) Internal Wireless Network malfunction
Wireless Network
on the TV
From *1
OK
Check harness
connection is OK
connection is OK
Loose harness
NG
Connect
l
Is the radio field
Strength too weak
or even No
signal?
BAX Board
Error Message appear
when the Wireless
Network is selected?
No
No
between WiFi and BAX
Loose harness
OK
properly
Change
Wi-Fi module
Wi-Fi module
NG
NG
Change
BAX board
NG
Change harness
between BAX
between BAX
b
d
d WiFi
Access Point
Hardware defect
suspected.
Go to the next
Yes
Yes
*1
Change WiFi module
NG
OK
Wi Fi module
BAX board
Wi-Fi module
OK
board and WiFi
Main Harness
OK
OK
WiFi module
If Wi-Fi malfunction happens,
•
Wi-Fi module
•
Harness between WiFi and BAX
•
BAX board are suspected.
26
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