DOWNLOAD Sony KDL-40HX750 / KDL-46HX750 / KDL-55HX750 Service Manual ↓ Size: 15.98 MB | Pages: 120 in PDF or view online for FREE

Model
KDL-40HX750 KDL-46HX750 KDL-55HX750
Pages
120
Size
15.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-40hx750-kdl-46hx750-kdl-55hx750.pdf
Date
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Sony KDL-40HX750 / KDL-46HX750 / KDL-55HX750 Service Manual ▷ View online

KDL-40/46/55HX750(CH)
97
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
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
NG
NG
Symptom 
improvement
Symptom 
improvement
KDL-40/46/55HX750(CH)
98
TROUBLE SHOOTING
3-9. 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-40/46/55HX750(CH)
99
TROUBLE SHOOTING
2) USB Wireless Network malfunction
Wireless Network
on the TV
Is the radio field 
Strength too weak
or even No signal?
Access Point
B* Board
Error Message appear
when the Wireless 
Network is selected?
USB Dongle
NO
YES
NO
YES
3) Internal Wireless Network malfunction
Wireless Network
on the TV
Is the radio field 
Strength too weak
or even No signal?
Antenna harness/Access Point
B* Board
Error Message appear
when the Wireless 
Network is selected?
Wireless Module, Harness
NO
YES
NO
YES
KDL-40/46/55HX750(CH)
100
3-10. 3D MALFUNCTION
TROUBLE SHOOTING
3D malfunction
HEM* Board
No
No
NG
Yes
Change 
Watching environment
Panel (T-con)
[How to confirm IR-output.]
ex) Look IR-LED through CCD/CMOS camera.
IR has been output
on HEM* board,
during 3D displaying.
Replace HEM* board
Symptom 
improvement
Check 
whether there is 
interception thing 
between Emitter
and glasses.
No
Yes
Yes
Is 3D glasses 
power on?
Power on 
or
Charge battery
3D glasses
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