How do you Test a Zener Diode? CR2 IN4735A

Thomas

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Do I need to pull this out of circuit and then test?

This zener is on a pole position cpu board upper right hand side.
 
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I pulled the zener out of the board. I then tested it in diode mode with my dmm. I have nada its toast.
 
What should an IN4735A read? I pulled out a spare cpu parts board and that diode reads 112 in circuit.

Lets pop it out real quick...
 
That's was interesting the diode now reads 726 removed from the pole cpu parts board. Not sure how close that is to spec. Looks like i might be back in business...
 
Scrap zener salvaged... Now in place on good board reading 186
 
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