I have a Zener Diode MTZJ33B were can i know its voltage. i am new in this. what is required to be same while buying a new one

SOURCE: Mitsubishi cs40507 blown zener diode

It should be at the back cover, just where the model number is. If you have the TV open, it may also be found inside, maybe on or around the tuner area.

SOURCE: Zener Diode question

NO---- You can raise the wattage not the voltage. That component in whatever circuit it was designed to operate in requires 27v one direction thus a diode. At what strengths (wattage) will depend on the load. That particular diode will pass 27 volts up to 1 watt - one direction. Like a resistor never change the ohms rating but you can increase the watts, like from a 1.5 watt to a two watt or 1/2 watt to a 1 watt.
Unlike a capacitors that are designed to deliver voltage at a correct rate (ohms) its strength comes from its voltage rating. For a more reliable cap use a higher voltage but never change the rate.
Bill

SOURCE: Burnt Zener diode... Voltage spec??

On the cathode of the zener diode look for a filter cap and check its value the voltage of the zener should be less than the working voltage of the zener. Basicly its likely being used as a shunt regulator as protection and regulation of the voltage. When the zener hits a certain threshold it will breakdown and start conducting to ground until the supply regulates and then it will recover. If the filter cap for that voltage rail was 25V I would guess that the zener would probably be regulating between 12 and 20 volts. I'd pick a 15V Zener its probably +- %10 on the original and any system should be able to take a %10 tolerance as a general design rule.

SOURCE: Where can I find a replacement part for zener

Same problem. Replaced it with a 9 volt 1 watt zener and it's good to go!

SOURCE: tv does not power up

I have seen the schematic, d982 is a 13v 1/2w zener
-GR