any ideas on how to identify the zener diode in the pic?

look at the stripes

Could be 30V...
Orange = 3
Black = 0

>>56923022
It has a silkscreened label, ZD104, so obviously that stands for zener diode, you're welcome

Probably one leg of the diode has also a color strip. This means the P_dead

>>56923022
Probably have to get a schematic, as apparently the color codes are manufacturer specific and it doesn't look like you can tell who made it.

Might also be able to reverse engineer the circuit to figure out out.

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>>56923208
That's lotsa L and C there, but JFC....30V Zener?

>>56923299
ive been looking for one, cant find.. its for a power supply, sanyo npx676mb-1, also numbered etxsy676mbh

File: obvious.jpg (135KB, 500x375px) Image search: [Google]

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>>56923226

>>56923022
If its not dead, just test it. Connect it in series with a high value resistor, put power across it and measure the voltage drop.

>>56924779
i think its dead? its open when i check with ohm meter going both directions.

>>56924857
You can't check it with an ohm meter. The meter needs to have a diode setting and it should conduct in one direction only with about 0.2-0.9v of voltage drop. The voltage drop in the opposite direction is too large for a standard voltmeter diode setting to test.

>>56924904
i have two meters, one has a diode setting, and it shows short when i check it

>>56924779
This. Or if it is dead there is probably an identical one somewhere else on the board you can pull and test.

If the diode is working, remove diode from circuit, connect to power supply and measure current. Plot the data at 1v steps and see where the zener avalanche occurs.

Replace with equivavlent diode.

>>56925319
Short in one direction or both? If both directions the diode could have failed sorted, but then the ohm meter would most likely show it as a short too. If one direction, then its probably good.