Id circuit board part

J

James Lundmark

New Member
Trying to id a part on a controller board for an irrigation system. The part is cylindrical, silver, no markings, 5.8 mm x 1.7 mm. Might be a crystal or oscillator. Board has marking Y2 on it. Any ideas, cannot find a diagram. Thanks, photo attached
 

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  • 20170725_132451.jpg
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Try adding a photo of where it came from. The board might give us a better clue as to what it is.

Mike.
 
James Lundmark said:
Tried to add Picture of board, located at Y2, message file too large, how do i attach, thanks
Click to expand...
You probably have a very large picture. Try editing (crop) the file to make it smaller. Most editors also have a way to reduce the file size.
 
'Y' is often used as a PCB designator for a crystal, so I am agreeing with Nigel on this one.
 
What's on the other side of the board? Do you see an IC connected directly to the pins of Y2?
 
Yep, crystal. the next step is what are all of the numbers on the big chip?

One corner of the chip should be "different" than the other 3. That's pin 1. Start counting CCW and what pins are Y1 connected to?
 
KeepItSimpleStupid said:
One corner of the chip should be "different" than the other 3. That's pin 1.
Click to expand...
To clarify, one of the corners may be flattened rather than coming to a point, or perhaps there is a dot on the plastic. That is the pin 1 designator.
 
Not sure which corner is different. Photo of chip attached. Cannot locate Y1. Advise, thanks
 

Attachments

  • 20170730_142349.jpg
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James Lundmark said:
I see several different 32khz crystals. Will any work or should i be looking at a specific series or other parameter. Thanks
Click to expand...

They all seem pretty well the same, I usually get mine out of old equipment

A good source is old VCR remote controls, which have an LCD display on them - it's easier to find them inside the remote, rather than inside the VCR.
 
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