"dave"
On 04/29/2014 07:58 AM, Tim Schwartz wrote:
On 4/29/2014 8:30 AM, Apple_Tester wrote:
Hi!
Short circuited diode, glass enclosure.
The only markings are 2 and 18.
Zener 18V?


If you could re-post, mentioning the make and model of the item the
diode belongs to, and the circuit location, it would help all identify
the part for you, as someone might have the schematic, and be able to
look it up.


Can't you check a zener diode with a bench power supply and a couple
resistors?


** Sure - but the OP has a **short circuit** one !!!

For replacement purposes, you must know what the original part is OR what it
should have been - cos one occasionally comes up against incorrect parts
fitted in PCBs and even incorrectly marked parts.


..... Phil