I bought a used Sylvania LC320SLX television, but it came with no owner's manual. I'm having great difficulty finding one online. Can you help me out?

You are getting that message becuase the MAC video resolution is too high for the TV handle, you need to lower your MAC video resolution to the native resolution of the TV, read your manual to find out what it is.

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

Here's the link to the Owners Manual.

http://funaiport.com/download/download.php?id=105&brand=SYLVANIA

hi! i have a couple of codes for your tv, just try them, 1004, 1007, 1018, 1027, 1047, 1056, 1057, 1059, 1060, 1061, 1103, 1124, 1145, 1150, 1153, 1279, 1296, 1387, 1464, 1483, 1046, 1465, 1150, 2092, 1464, 2408, 1465, 2260, 1027, 2064, 3105, 1124, 2078, 3088, 1296, 2213, 3147, hope this helps!!! goodluck!!!!

These codes control Sylvania TV with the RC65, & I suspect they work with the RC64: 11864, 10171, 11271, 11314, and 11394.

Instructions for entering the codes are here.
Instructions for searching for the proper code instead of trolling through that list are here.
If you'd like a digital manual for your RC65, click here.

I hope that helps.

Download manual and read all about it here: http://retrevo.com/support/Sylvania-LC-320SLX-TVs-manual/id/23336ci476/t/2/

I has the same problem. I bought a Logitech harmony remote and it works with the tv and everything. The 650 was only $49.00. Well worth it to have one remote.

Does your TV have a red and white, and (yellow) port in the back? if it does, for Stereo Red is for the right speaker, and while is for the left. You will also need to put the other end Red & White to the cable box too, that is if your tv has these ports, if the tv is too old and only uses Coax, you may need to get a rf modulator, from $6-$12. Hope this helps

i need to program this sylvania LC320SLX model to my control remote

If you are programming a universal remote, normally they have a chart with the remote. However the codes are as follows:
0054, 0030, 0020, 0028, 0065, 0096, 0381
also the manual is located here: http://www.sylvaniaconsumerelectronics.com/pdf/manual/LC320SLX.pdf
hope this helps.

Sylvania is made by Funai Corp. You can check their website for an owners manual. If you have difficulty with that you may send me and email to [email protected] and I will send one to you.