PCB Schematic Draft
Corrections from my microscope inventory sheet: (1) U1 is a 6-pin small IC (marking "T18 AU8 2DZ"), not 10-lead — please make the U1 placeholder 6 pins. (2) R6's marking is ambiguous between 103 (10k) and 105 (1M) — keep it annotated as "verify by measurement". (3) There may be an R5 on the silkscreen — add a note, not a part. (4) D1-D3 might be LEDs rather than rectifier diodes — annotate as "confirm diode vs LED". (5) C1-C3 values are unmeasured — annotate. Keep all these as visible open questions on the schematic notes rather than guessing values.
Thought for 10 sec
I’ll apply those corrections: swap U1 to a 6-pin placeholder, adjust the uncertain annotations, and update the schematic notes/open questions without adding R5 as a component.
Worked for 1 min 45 sec
U1 is now a 6-pin placeholder with no assumed pinout. I’m updating the part notes so the uncertainties stay visible instead of encoded as guessed values.
Worked for 4 mins 50 sec
Applied the microscope-inventory corrections: U1 is now a 6-pin placeholder, R6/C1-C3/D1-D3 are annotated as uncertain, and possible R5 is documented as a note only.
Open items:
- U1 pins are intentionally floating until trace mapping confirms pinout.
- R6, R7, C1-C3, D1-D3 type/polarity, and possible R5 still need measurement/confirmation.
- ERC still reports expected unresolved placeholder pins and missing MPNs for generic draft parts.
Updated files: Schematic Capture Notes and Project Specification.
Suggested next steps:
- Measure R6/R7 and C1-C3.
- Confirm D1-D3 with diode/LED test mode.
- Provide U1/U2 continuity maps so I can wire the placeholders correctly.
Clean notes and review
Arrange schematic groups
Create measurement checklist
Add photo map plan
Check BOM placeholders
