PCB mount/Plastic standoff for SX-850

Big Ben

Active Member
So, of course, I managed to break one of the plastic standoffs holding the power supply board while restoring my SX-850. Expecting this to happen at some point, I had ordered a bunch of replacement standoffs (Mouser #534-8811, https://www.mouser.com/ProductDetai...MI6vbvi9vA3AIVBNbACh1f0AxbEAUYBSABEgI3XPD_BwE), following the Watthour's advice in http://audiokarma.org/forums/index.php?threads/sx-850-restoration-record.831103/.

However, these don't fit. They are a few mm too long (which would not be an issue, provided I change all standoffs for a given board), but more importantly, the diameter of the part holding the PCB is too high, so I can't secure the PCB to the standoff.

Does anybody have a reference of a standoff that may fit better?

Thanks!
 
Sorry about the confusion, but those are the standoffs (Keystone) I used in my 950, and have used them to replace damaged ones in other units. I don't recall having to enlarge any holes, but may have run a tapered reamer through to open them slightly. The 40 year old standoffs are NLA, and this was the closest I could source.
 
So, of course, I managed to break one of the plastic standoffs holding the power supply board while restoring my SX-850. Expecting this to happen at some point, I had ordered a bunch of replacement standoffs (Mouser #534-8811, https://www.mouser.com/ProductDetail/Keystone-Electronics/8811?qs=%2bU2dxLPlMC14X2hIAiqpjA==&gclid=EAIaIQobChMI6vbvi9vA3AIVBNbACh1f0AxbEAUYBSABEgI3XPD_BwE), following the Watthour's advice in http://audiokarma.org/forums/index.php?threads/sx-850-restoration-record.831103/.

However, these don't fit. They are a few mm too long (which would not be an issue, provided I change all standoffs for a given board), but more importantly, the diameter of the part holding the PCB is too high, so I can't secure the PCB to the standoff.

Does anybody have a reference of a standoff that may fit better?

Thanks!
Per another AK thread, I've used these on a couple Pioneer SX-980s and they work fine. However, some of the PC board holes did have to be enlarged. https://www.mouser.com/ProductDetail/Panduit/CBLS37-C?qs=DY/m%2B86Hg%2Bgvpt3PrckqfA==
 
Quick update on my experientations: the 8874 do indeed fit through the original PCB holes. However, the chassis holes are too large. I worked around this by placing a plastic washer behind the chassis hole. This solution seems to be working pretty well, at least for the lighter boards (I.e equalizer).

AE20E4D5-5485-4AEB-8199-263751B62F22.jpeg C1659905-B869-4D1C-A63B-1597CF7D4573.jpeg
 
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