Samsung UN43KU7500F Service Manual page 99

4. Troubleshooting
4-2-4. Network
<TV>
TV to Router "Failure"
„
Wired & Wireless MAC Address
•
No Wired MAC Address
9
No Wireless MAC Address
9
If operating voltages are OK but signal missing.
9
• Replace WiFi Module (WiFi/Bluetooth Module).
• Proper security passcode
Check Wi-Fi signal strength at TV (use WiFi Analyzer or similar App).
9
• Try another source (Hot spot or Test Router).
Check related Bulletins.
9
Factory Mode
Check
9
Router to Network "Failure"
„
• Instruct the customer the TV has proper connection to the router and is likely OK.
Check other devices using network are OK. If they test OK this does not mean the TV should be working.
9
• Try another source (Hotspot) to test/show TV Network operation.
4-10
Check
Network Status
in Customer Support Menu.
: Replace Main Board.
: Module cabling & voltages from Main Board.
SVC Info WiFi Error Count
→ → →
Check
Network Status (TV
<Router>
(TV Router
(replace module for high error counts).
Router Internet)
<Internet>
)
Internet