I have tashiba tv 37 '' just i turn off than i turn on tv but dont turn on only red light flassing screan black

Contact Samsung tech support, Tell them this info, they should be able to tell you the type of problem you have

more info please

Lamp is possible----

Mitsubishi TV troubleshooting
Here's something that might also be useful. After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.
Here are the error codes, and the corresponding problem:
12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filter cover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
37 = Exhaust or Lamp Ballast Fan stopped
38 = Lamp Temperature High
39 = DMD Temperature High
41 = Short is detected
44 = DVI cable between FMT and Engine disconnected

Unplug the television, wait for 60 seconds.Then re-insert plug into the
mains socket and turn on the television again.

Your TV has a protective mode in case there is too much heat build-up.
Verify the clearance around the vents of the device to be certain there
are no blocking walls or cabinets which would limit the air flow.
If all above are OK, check the back light inverter board. For more details, visit this site 'Electro-help". It is an electronics equipments service help site. Google for it.

sounds like bad capacitors on the power supply board.

You may have blown parts, look inside and inspect the power supply module and the back light inverter board, I will leave the TV unplugged.
Please see my basic troubleshooting guide:
http://s807.photobucket.com/home/budm/allalbums

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

http://en.wikipedia.org/wiki/Capacitor_plague
Parts: try www.shopjimmy.com or Ebay

Power supply board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

a capactor( look like battries either black or brown ) has blown on main power board you will need a soldering iron you can tell whitch one by the shape of the top and look for raised top replace it with same one and note what side the line is on and put new one in same way

problem with digital board or LCD lamp

Error 50: Purge cam problem. mfc/dcp has to be taken to service. No chance to fix it by yourself. sorry!