ERC Problem

This is my schematic:


And this is the ERC report:
ERC.rpt (673 Bytes)
ERC report (2025-08-10T18:01:13-0400, Encoding UTF8)

***** Sheet /
[missing_power_pin]: Symbol AR1 has input power pins in units [ Unit C ] that are not placed.
; error
@(6500 mils, 1500 mils): Symbol AR1 [LMC6482]
[missing_unit]: Symbol AR1 has unplaced units [ Unit C ]
; warning
@(6500 mils, 1500 mils): Symbol AR1 [LMC6482]
[missing_input_pin]: Symbol U1 has input pins in units [ Unit A, Unit B ] that are not placed.
; warning
@(7100 mils, 1450 mils): Symbol U1 [LMC6482]
[missing_unit]: Symbol U1 has unplaced units [ Unit A, Unit B ]
; warning
@(7100 mils, 1450 mils): Symbol U1 [LMC6482]

** ERC messages: 4 Errors 1 Warnings 3

There is no U1, this was changed to AR1. All terminals for AR1 and XAR1 are taken care of. So why I am getting these errors and warnings?

You could upload your schematic for others to try. I can’t help, I’m still on v8.

PS: I think I remember you’re the guy who uses Xsomething to denote the socket. I think you’ll need to work out how this scheme will play out with multi-unit symbols. I suspect XAR1 is a copy of the IC symbol which was U1, no?

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Maybe this is part of U1

image

retiredfeline,
Yes I am the guy that uses the class letter X for a socket. That is in accordance with IEEE 315 Clause 22.4 and application of the unit numbering method of ref des from ANSI/ASME Y14.44.
–Larry

Yes, That did it–good catch. I assumed (and we all know how assume is spelled) that when I changed U1A to AR1A and U1B to AR1B that AR1C would follow. I even deleted the ref des, that is why it is not seen. I tried to get the ref des to reappear so I could check the ref des, but to no avail. So I added another U1C, changed it to AR1C, and deleted the old symbol.
–Larry

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