Sony KDL-40HX720 / KDL-40HX723 / KDL-40HX725 / KDL-46HX720 / KDL-46HX723 / KDL-46HX725 Service Manual ▷ View online
KDL-40/46HX720,723,725(AEP/UK)
57
3-7. TV COMMANDER BUTTONS MALFUNCTION
TROUBLE SHOOTING
1) TV button malfunction
Button malfunction
on the TV
Replace the Harness
between B* to
Switch Unit
Switch Unit
Harness
Switch Unit change
B* Board
OK
NG
OK
NG
KDL-40/46HX720,723,725(AEP/UK)
58
TROUBLE SHOOTING
2) IR remote commander malfunction
TV isn’t controlled
by remote commander
Green LED light
at power indicator
OK
NG
Sensor is broken
HLR Board
B* Board
OK
NG
Mechanical
(ex. bezel)
Green LED blinks
at power indicator
at power indicator
when using commander
near sensor’s window
Check the Harness
between the B* Board
and the HLR Board
Exchange the Harness
Exchange the
HLR Board
Harness
OK
NG
OK
OK
NG
NG
KDL-40/46HX720,723,725(AEP/UK)
59
TROUBLE SHOOTING
3-8. NETWORK MALFUNCTION
1) Wired Network malfunction
Wired Network
on the TV
Connection result
Local Access
Connection result
Cable Connection
OK
NG
OK
NG
Connection result
Internet Access
Proxy setting
NG
B* Board
Check the Ethernet Cable
Ethernet Cable
Check IP address
and Local router setting
Wired Set-up
IP address setting
Check Local router DHCP server
Auto
Manual
OK
NG
KDL-40/46HX720,723,725(AEP/UK)
60
TROUBLE SHOOTING
2) USB Wireless Network malfunction
Wireless Network
on the TV
Is the radio field
Strength too weak
or even No signal?
or even No signal?
Access Point
B* Board
Error Message appear
when the Wireless
Network is selected?
USB Dongle
NO
YES
NO
YES
Click on the first or last page to see other KDL-40HX720 / KDL-40HX723 / KDL-40HX725 / KDL-46HX720 / KDL-46HX723 / KDL-46HX725 service manuals if exist.