My zenith tv keeps shutting off when i turn it on...what could the problem be?

tried to re seat the connectors in the convergence circuit, if can not get get with reset check if their is a burnt resistor near the convergence ic.

Reboot your cable box first by unplugging the power for about 30 seconds

No,the tv message said replace lamp wright?Yes,mean the tv projection lamp is the causes and the problems.The tv projection lamp life span have ended that why the tv it is not holding a stable tv projection lamp picture.All throught these causes,does the tv make alot of clicking noises too,when the tv projection lamp is it on for 30 sec.and shut it self off?Yes,than the board that call the Ballast board it is also dead too.This Ballast board only job are to ignite the tv projection lamp only.Tries websites like Partstore.com,Ebay.com to buy a new tv projection lamp and a new Ballast board too for the replament too,if this tv causes have alot of clicking noises,when the tv is trying to ignite the tv projection lamp.

Hello;

Without knowing the codes for the specific brand names and models of your devices, this is how you program the Zenith MBR3447 for your TV, VCR, DVD Player, CD Player or Audio Receiver:

TV

1. Push the "Power" button on the TV to turn it on.
2. Press and hold the "PRG" button in the upper left corner of the remote. Release when the indicator light, located in the top center of the remote control, comes on.
3. Push the "TV" mode key located at the top of the remote.
4. Enter 0 -- 0 -- 0 on the remote's number pad, then press the "Enter" button.
5. Aim the remote control in the direction of the TV's IR sensor and push the "Power" button. Pause a second. If the TV fails to shut off, push the "Power" button again. Repeat until the TV does shut off. Each time the "Power" button is pressed the Zenith MBR3447 tries using a different TV device code from its code library to turn the TV off. Therefore, when the TV finally does shut off it's an indication that the remote is temporarily programmed with the correct device code to control the brand of TV you're using.
6. Press "Enter" to save the current code.

VCR

1. Push the "Power" button on the VCR to turn it on.
2. Press and hold the "PRG" button in the upper left corner of the remote. Release when the indicator light, located in the top center of the remote control, comes on.
3. Push the "VCR" mode key located at the top of the remote.
4. Enter 0 -- 0 -- 0 on the remote's number pad, then press the "Enter" button.
5. Aim the remote control in the direction of the VCR's IR sensor and push the "Power" button. Pause a second. If the VCR fails to shut off, push the "Power" button again. Repeat until the VCR does shut off. Then press "Enter."

DVD Player, CD Player or Audio Receiver

1. Push the "Power" button on the device your programming the remote to control to manually turn it on.
2. Press and hold the "PRG" button in the upper left corner of the remote. Release when the indicator light, located in the top center of the remote control, comes on.
3. Push the "AUX" mode key located at the top of the remote.
4. Enter 0 -- 0 -- 0 on the remote's number pad, then press the "Enter" button.
5. Aim the remote control in the direction of the device's IR sensor and push the "Power" button. Pause a second. If the device fails to shut off, push the "Power" button again. Repeat until the device does shut off. Then press "Enter."

you can try to shut the tv off ,unplug the power to tv and anything that is powering the tv[pvr] .now plug in the power to the box first wait,30 seconds or so ,now plug in the tv wait,now turn the t.v. on,WAIT unless it starts smoking just wait.see what happens.

after an hour tv shuts off and you have to wait to turn it back on

There maybe some loose components on the circuit and that needs resoldering. Bring it to the repair shop to done.

throw the **** out

i would start there, or send the board in and have it checked out at ptscorp.com

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929