Re:Hardinge CHNC 1 Lathe

I wooped some rubber-be-gone on it this morning and my board is the same but different than your board. I see a part that is smoked but can not id what it was . It is about 4 times the diameter of the resistors and tan colored in position C1. Any ideas what it might be?

image missing http://www.linuxcnc.org/media/kunena/attachments/legacy/images/TurretEncoder01.jpg

Thanks
John

Looks like a Tantalum bypass capacitor
old Tantalum bypass caps are quite prone to this (shorting out)

Here is a closer shot of it. I can read 173+ then in the burned spot something ends with K.

image missing http://www.linuxcnc.org/media/kunena/attachments/legacy/images/burned_part.jpg

Thanks
John

It might have some info on the back, I'd clip the leads and see. What power supply does this run on?
Bypasses are not critical so if the power supply is known the capacitor size can be guessed

Hi Peter,

It runs on 24v.

It has the following on it
24V+
0.114 (2)
173+
The last line I can't read

Thanks
John

24V is strange (25 is a standard voltage rating and too low for 24V power)

Unless you can get the original specs I would tend to be cautious and use a 35V capacitor, maybe 2.2 uFor so