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Trinity Encoder Assembly - Take Apart Disassembly Photos

 
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samriccijr
Junior Member


Joined: 01 Jan 2004
Posts: 78
Location: usa nj

PostPosted: Sat Feb 22, 2020 12:05 pm    Post subject: Trinity Encoder Assembly - Take Apart Disassembly Photos Reply with quote

Hi all!

Does anyone have pictures of the Trinity encoder assembly?

My encoder is skipping. I want to see if I can use the encoder I salvaged from an old i3. The i3 encoder does not have snap mounts, but the 'Trinity online' photos show snap mounts on the encoder.

I am just trying to pre-plan a repair.

Heck, does anyone have take apart disassembly photos of their a Trinity?

Thank you!
Sam in NJ USA
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voip
Platinum Member


Joined: 27 Nov 2014
Posts: 2290

PostPosted: Sat Feb 22, 2020 5:59 pm    Post subject: Reply with quote

Although not a direct answer to the posting, here is a link to a video of a Trinity teardown, showing the removal of the bottom cover, and lifting of the mainboard (for battery replacement). The mainboard will need to come out to reveal the encoder subassembly, so only one more step to get the encoder assembly out, which just involves four screws. The video is best viewed at reduced speed!

https://www.youtube.com/watch?v=b7dvyuou26o

Also, images of the encoder assembly:

https://www.bing.com/images/search?q=korg+klm+1823&qpvt=korg+KLM1823&FORM=IGRE

The ESX1 also uses the same encoder as the Trinity, so may be another source of spares.

Or search eBay for Alps-Electric-24-Pulse-Incremental-Mechanical-Rotary-Encoder-with-a-6-mm-Flat-Sh

or search for part number: EC16B242041SA

The encoder for the i3 is part EC16B25D, so is different.

.
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samriccijr
Junior Member


Joined: 01 Jan 2004
Posts: 78
Location: usa nj

PostPosted: Sun Feb 23, 2020 4:33 pm    Post subject: Reply with quote

Thank you, VoIP!

Assuming the 3 pin connector is 10mm (as on the i3),

It looks like the encoder has a 16mm body, 10mm pin spacing, 16mm half moon shaft height, snap in configuration 24 pulse per revolution, 24 detente.

Mouser has the Bourns equivalent:

PEC16-4215F-S0024 with switch and 15mm shaft
PEC16-4220F-N0024 no switch and 20mm shaft

I will order them and keep everyone posted.

The I3 encoder has similar dimensions but a different configuration - the pins are like a volume pot, the circuit board is parallel to the shaft, and the shaft is knurled.

Thank you!
Sam in NJ USA
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