Zener T3D98 data required

[spdy]

I am trying to repair a Panasonic plasma 42 inch TV TH-P42C10D. one of the suspicious components is a Zener T3D98 which is showing infinite resistance on both sides using a diode check with a multimeter.

I cannot find any data on this. I presume this is a high voltage 100, 150 or 200 volts zener in the power supply after the bridge rectifier and parallel to the transformer input.

How can I get data on this and can it be checked with a DMM?

Thanks.

[chrismurphy]

Re: Zener T3D98 data required

Very unlikely a zener or diode will go open
Check again on diode setting on your multimeter

[spdy]

Re: Zener T3D98 data required

Thanks. I have desoldered and checked it is open on both sides. I want to know if they have higher threshold voltage and therefore it does not show on the dmm I am using.
I would also like to know what should be the voltage of a zener being used accross the bridge rectifier and trasnsformer of the smps?

[R_J]

Re: Zener T3D98 data required

That T3D98 has two diodes connected common anode, one is a zener one is a regular diode. It will measure open circuit

[budm]

Re: Zener T3D98 data required

that t3d98 has two diodes connected common anode, one is a zener one is a regular diode. It will measure open circuit

+1

[petehall347]

Re: Zener T3D98 data required

example .....

[budm]

Re: Zener T3D98 data required

The questions are:
1) What is not working?
2) What power supply section that this snubber diode is located in?
3) Pictures of what we are dealing with?

[spdy]

Re: Zener T3D98 data required

Thanks, that is why it is showing open on the dmm diode check. I will have to look at the power supply section of this tv again.