Toshiba 40S51UN Manuale Utente

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Chapter 9: Troubleshooting
71
Remote control problems
 
Ensure the remote control is set to the correct 
device mode ( page 79).
 
Remove all obstructions between the remote 
control and the TV.
 
Replace the remote control’s batteries ( page 23).
 
Your TV’s remote control may not operate certain 
features on your external device. Refer to the 
owner’s manual for your other device to determine 
its available features. If your TV remote control 
does not operate a specific feature on another 
device, use the remote control that came with the 
device ( pages 82–87).
 
If the TV still does not act as expected, perform the 
Reset Factory Defaults procedure ( page 45).
Channel tuning problems
 
Ensure the remote control is set to the correct 
device mode ( page 79).
 
The 
Auto Tuning feature may have erased the 
channel from memory. Add the channel to the 
channel memory ( page 29).
 
The 
Lock feature may have blocked the channel. 
Unblock the channel ( page 39).
 
If you cannot tune digital channels, check 
the antenna configuration ( page 29). If 
the problem persists, clear all channels from 
the channel list and reprogram channels into 
memory ( page 29). If the problem persists, 
use the Reset Factory Defaults procedure ( 
page 45). See “TV stops responding to controls” 
and “Other problems” ( page 70).
Closed caption problems
 
If the program or video you have selected is not 
closed-captioned, no captions appear. 
 
If text is not available, a black rectangle may 
appear. 
If this happens, turn off the closed-caption 
feature ( page 36).
 
A closed-caption signal may not display 
correctly under the following circumstances: a) 
the videotape is dubbed; b) the signal reception 
is weak; or c) the signal reception is nonstandard 
( page 36).
Rating blocking (V-Chip) problems
 
If you forget your PIN code: While the PIN code 
entering screen is displayed, press 
 4 times 
within 5 seconds. The old PIN code is cleared ( 
page 37).
 
The V-Chip feature is available for U.S. V-Chip 
systems only ( page 37).
No HDMI
®
 CEC Control operation
 
The HDMI
®
 CEC Control feature is available for 
Toshiba HDMI
®
 CEC compatible devices.
 
Ensure HDMI cables with the HDMI Logo 
(
) are used.
 
When the connected HDMI
®
 CEC device does 
not work correctly after you have changed the 
device’s settings, turn off your TV and unplug 
the power cord. After 1 minute, plug it in and 
turn it on again.
 
If several devices are connected, the HDMI
®
 
CEC Control feature may not operate properly.
 
Read the instruction manual of the connected 
HDMI
®
 CEC device.
HDMI problems
For HDMI cables
 
Ensure HDMI cables with the HDMI Logo  
(
) ( page 15).
For Legacy HDMI sources
 
Some legacy HDMI sources may not work 
properly with the latest HDMI TV products due 
to new standards. Turn off INSTAPORT
 ( 
page 42).
Network problems
Cannot connect to the Internet
 
Check the modem and its incoming cable/telephone 
connections ( pages 21).
 
Confirm your modem’s operation.
 
Ensure your IP address is set up correctly.
No network connection
 
If using a wired network connection, check to 
ensure the LAN cables are connected properly ( 
pages 21).
 
Ensure the modem and router power cords are 
plugged in and the devices are operating properly.
 
Ensure your IP address is set up correctly. See 
Section ( “Setting up the Network”).
 
Check to ensure proper operation of other network 
connected devices.
Network Setup fails (Auto)
 
Check to ensure the LAN cables are connected 
properly ( page 21)
 
DHCP is not enabled on the router, or no router 
is present. Refer to your router’s documentation 
for instructions on enabling DHCP. If you do not 
have a router, you must manually set up the IP 
address.
 
Internet service is not available. Check your 
cable/DSL modem or contact your ISP for 
Internet service issues.
Network Setup fails (Manual)
 
Ensure the TV IP address is not the same as any