How do I get my Sylvania MTS/SAP tv to switch over to video mode

if just running HDMI cable try adding audio cables too, check all your volume and mute settings in the system setup.
If you have audio on most channels, but have silence on some or all of your local network channels, you may have the Secondary Audio Programming (SAP) turned ON. Complete the following steps to turn off SAP.

1. Press the Settings or MENU button on the digital remote.
   
   Result: The Settings screen displays.
2. Choose from the following options.

If... Then... Disable SAPdisplays Press the Select button. Choose SAP Languagedisplays Use the left or right arrow buttons to choose the English setting and press Select. PREFERENCESdisplays Scroll to the Language option, select Audio, then select the option labeled Primary or the one labeled English. If the above quick fix doesn't work, there may be a problem with MTS, Stereo, or another SAP issue. Try the following:

• Verify in the program listing guide that the program has MTS, Stereo, or SAP features.
• Check to see if the MTS, STEREO or SAP light on the TV or VCR is on.

If the light is not on, try the following:

• Push the MTS, STEREO, or SAP button on the TV or VCR.
• Adjust the fine tuning on the TV set to restore the stereo or SAP.

http://www.cox.com/residential/support/tv/article.cox?articleId=81da8760-5c47-11df-ed4d-000000000000

Hello
Just get into this site from you can download the user manaul of your Sylvania Tv. I think that to select the inputs, you must have its remote control. If there is a "Meny" button on the front panel of your TV, you can select it. Just download the manual and go through it. It is absolutlely free download. OK.
www.manualshark.org/s/sylvania+manual+mts+sap/page:2

kindly check the remote settings and your manual for it. Select Menu and click Settings, then sort it out until you see the option Wide so that you can select it to widen your screen..

S.A.P. Means Secondary Audio Program.


SAP, Mono, Stereo, Etc. You should be able to switch this from your remote. Even universal remotes should have this button to adjust sounds. Otherwise you need to go into the TV menu (not the remote) and change it from there. The only way you can change it on those channels is to switch manually. Happens a lot on these older TVs. No worries. Very common.

On many sets, the audio channel can be switched by remote control or through a SAP switch located around the tuning panel or "on screen programming." Usually, there is a setting labeled SAP, AUDIO SELECT, B-AUDIO, MTS, or MENU. By changing the setting, you should be able to select SAP. Not all TV sets are alike, so you might want to check your instruction manual for all the details.

Sylvania MTS/SAP TV.
I don't have a remote
I accidentally hit the ''menu'' button on the front. Now I can't get the TV to show anything but static -- like there is no signal coming in from receiver (either through input jacks on front or on rear. Menu gives various options, but none of them gets me back to being able to see the picture.

Your SAP/MTS function is most likely turned on. This feature has 3 modes: Stereo, Mono and SAP. Stereo and Mono are easy to understand, it's the SAP that can get you. SAP stands for Second Audio Production. It is used to provide weather, information or an additional language translation of a program. Some broadcasters simply transmit the mono audio over the SAP audio channel when the are not using it for other purposes. Other broadcasters simply do not use it, which does not give you any audio. Look on your remote for a SAP or MTS button. If you do not see one, look in your TV user menu for this feature. If you are using a cable box, look in the audio menu of the cable box. You are looking for something set to SAP... just change it to STEREO. I hope this was helpful.

could be that either the dvd or the vcr are malfunctioning, usually it is the vcr that creates the problem. If you turn tv on and set vol to low see if you can hear the noise of the motor loading or trying to load,with out a tape inside. It may be a good idea to have a qualified tech repair it, these units are difficult to work on and further problems may come up if you are not familiar with the tv.

YOU ARE IN SAP MODE. IF THERE IS NO SECOND AUDIO PROGRAM ON THE STATION YOU ARE WATCHING YOU WILL GET NO AUDIO. SWITCH SAP TO STEREO OR MONO. SOME REMOTES HAVE A MTS BUTTON ON THEM.

TV SETTING
1. Press the MENU button.
2. Use or button to select the TV setting menu, then press or button.
3. Use or button to select the Channel no. setting and use the or button
to change from AIR (over-the-air broadcasts) to CABLE (cable/satellite broadcasts).
4. Use or button to select the Tuning mode and use the or button.
5. Use or button to select the Auto tune and press or button to
confirm the selection. The unit will immediately search through all possible TV
channels and store those channels with signals in memory. After this is complete,
the unit will switch to the first channel found.
6. To exit the MAIN MENU and return to the normal screen, press the EXIT button.
Note : In DVD mode, this option is not available.
Remarks:
1. Channel no. : 2-69 channel for Air mode, 1-125 channel for Cable mode.
2. Tuning mode : Air or Cable mode are available.
3. Auto tune : Searches for usable stations and stores them in memory.
4. Skip : ON - Skip weak channels. OFF - No channel skip.
5. Fine tune : The frequency changes to allow fine tuning.
6. AFC : Auto frequency control.
7. MTS : Select the Mono sound/Stereo sound/Secondary Audio Program (SAP).
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TV SETUP
MTS (Multi-channel Television Sound) SETTING
This feature allows reception of sound other than the main audio for the program.
1. Press the MENU button.
2. Use or button to select the TV setting menu, then press or button.
3. Use or button to select MTS menu, and press or button to select the
options (Mono, Stereo, SAP)
4. To exit the MAIN MENU and return to the normal screen, press the EXIT button
on remote control.
Note:
• MTS only operates while in TV mode.
• The SAP (Secondary Audio Programs) feature allows a TV station to broadcast
other information, which could be audio in another language.
RESTORE SETTING
If you reset the TV to the factory settings, all your present settings on picture &
sound will be erased and replaced by the factory’s default settings. However, picture
setting in PC mode and parental setting will not be erased.