Id circuit board part

James Lundmark · Jul 27, 2017

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

Pommie · Jul 27, 2017

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

Mike.

Nigel Goodwin · Jul 28, 2017

It looks most like a crystal, probably a 32KHz clock crystal.

James Lundmark · Jul 28, 2017

Tried to add Picture of board, located at Y2, message file too large, how do i attach, thanks

James Lundmark · Jul 28, 2017

Why can't i read responses, covered by member info

KeepItSimpleStupid · Jul 28, 2017

FWIW: This https://www.microchip.com/forums/m672828.aspx URL, search for Y2.

ronsimpson · Jul 28, 2017

James Lundmark said:
Tried to add Picture of board, located at Y2, message file too large, how do i attach, thanks

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.

DerStrom8 · Jul 28, 2017

'Y' is often used as a PCB designator for a crystal, so I am agreeing with Nigel on this one.

James Lundmark · Jul 28, 2017

Board image Y2

DerStrom8 · Jul 28, 2017

What's on the other side of the board? Do you see an IC connected directly to the pins of Y2?

James Lundmark · Jul 28, 2017

This is backside of board, terminals circled in red

KeepItSimpleStupid · Jul 28, 2017

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?

DerStrom8 · Jul 29, 2017

KeepItSimpleStupid said:
One corner of the chip should be "different" than the other 3. That's pin 1.

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.

James Lundmark · Jul 30, 2017

Not sure which corner is different. Photo of chip attached. Cannot locate Y1. Advise, thanks

Nigel Goodwin · Jul 30, 2017

I don't really see what you're asking any more?, your broken part is a 32KHz clock crystal.

ci139 · Jul 30, 2017

#9 #14 https://pdf1.alldatasheet.com/datasheet-pdf/view/131319/SAMSUNG/S3F8289.html

James Lundmark · Jul 30, 2017

Sorry, i guess i missed something. My board is for an irrigation control. I didnt make the conne tion witb a clock crystal. Thanks

James Lundmark · Jul 30, 2017

I see several different 32khz crystals. Will any work or should i be looking at a specific series or other parameter. Thanks

KeepItSimpleStupid · Jul 30, 2017

FWIW: https://www.digchip.com/datasheets/parts/datasheet/409/S3F8289-pdf.php#page=356

The BIG dot is near pin #1. Any XTAL specs you should find in the Datasheet. The PDF will open to the package page.

Nigel Goodwin · Jul 31, 2017

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

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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