Sony KDL-32EX427 / KDL-32EX527 / KDL-40EX527 / KDL-46EX527 Service Manual ▷ View online
KDL-32EX427/32EX527/40EX527/46EX527 39
SECTION 5 - FLOW CHARTS AND DIAGRAMS
TV/REMOTE COMMANDER BUTTONS NOT WORKING
TV POWER
Button
not working
Replace the Harness
between B* to
Switch Unit
Switch Unit
Harness
Switch Unit change
B* Board
OK
NG
OK
NG
FIGURE 5-11. TV BUTTONS MALFUCTIONING
KDL-32EX427/32EX527/40EX527/46EX527 40
SECTION 5 - FLOW CHARTS AND DIAGRAMS
Remote Commander
Buttons not working
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
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
FIGURE 5-12. IR MALFUCTIONING
KDL-32EX427/32EX527/40EX527/46EX527 41
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NETWORK NOT CONNECTING
Wired Network
on the TV
Check
Local Access
Check
Cable Connection
OK
NG
OK
NG
Check
Internet Access
Proxy setting
NG
B* Board
Check 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
FIGURE 5-13. WIRELESS NETWORK MALFUCTIONING
KDL-32EX427/32EX527/40EX527/46EX527 42
SECTION 5 - FLOW CHARTS AND DIAGRAMS
Wireless Network
on the TV
Is the signal field
strength too weak
or is there No signal?
Access Point
B* Board
Error Message
displays when the
Wireless Network
is selected?
USB Dongle
NO
YES
NO
YES
FIGURE 5-14. USB DEVICE MALFUCTIONONG
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