I have sound but the picture is purple and will not adjust with the remote or manually with the buttons on the tv what can I do to fix this on the philips 36pt41b129

Hello!
Try to look at your remote control. The one, what came with TV set, not the cable or dish one. You should find something like: audio(sound) or video preset(picture) buttons. those are assigned for easy access to change those features. by pressing "picture" your settings will change to: vivid, movie, etc. Similar with 'sound". You may find what you want, by playing with those "presets". also: you may go to TV's menu and adjust picture the way you want it in a "custom" mode, the one of presets. You must use OEM remote control to do so.
Good luck,
thanks,
Alex.

ensure TV's 'mute' is not on. use buttons on TV to adjust volume up and down. if not working properly, you may have a volume adjustment on your cable modem which needs to be turned up to maximum. if sound works, all is well. if sound still not acceptable your TV needs repair.
if TV buttons adjust volume OK, and your remote for TV does not properly adjust volume, try fresh batteries. if
remote still not working properly, you can buy replacement on EBay or try a genaric remote from a dollar store. also, i may have an extra remote for you.

Have the cable company correct your wiring

Very common problems for DLP tvs,will get worst as times go by.Tv probally have a problems known as a convergence problems,it is dead.Tv have colors lines R,G,B unlevel on the pictures?Crooked pictures have mis colors alignments?Yes.There is no way manually to do an adjustment to fixed for this.Try push the tv remote button that said Magic Focus button.If the tv have data processing never completely done and have a error message and stop.Ur tv 100% have a dead tv convergence board,the tv convergence board must have it parts to be replaced like 2 STK convergence ICS and some or all of it resistors too.Than tv will be able to run the tv remote Magic Focus again to have a 100% data processing with no error message,tv to fixed this problems.The shop will cost u like $300-350 for parts and labors.

Press "Input Select" on the remote control and select "TV Mode."

Press "Menu."

Press "Enter" to select "Picture."Use the arrow buttons to select

"Picture Setting."

Press "Enter."Use the arrow buttons to select "Color."

Press "Enter."

Use the left and right arrow buttons to adjust the color settings. When you are pleased with the color setting, press the "Exit" button on your remote to exit the menu screen.

Hoped this helped

you either have a color purity problem or a convergence problem. purity can be effected by electro magnets in power supplys of audio amps and subwoofers too close to the tv

Convergence is the ability of the red green blue to drop on top of each other. can usally be adjusted via remote control. Please claify and repost.

sounds like your picture color tube may have went if the tv can not be adjusted with the remote or on the tv itself did you try every color or picture button on the remote and the tv itseff and if it is old i would get a new one if not have it fixed , sincerely john

INITIALIZE THE SYSTEM CONTROL. WITH THE REMOTE CONTROL PRESS "MENU 2, 3, 5, 8, " USE THE ADJUST BUTTON TO SELECT "INITIAL" AND PRESS "ENTER"

try changing the channel with the original remote or by the tv's physical controls. It sounds like it has switch to an AV channel.

Is there no buttons on the set to adjust the volume??? I've never seen a tv that didnt have at least under a door somewhere. Do you have an owners manual? You can get a universal remote to get this to work Good Luck!