---
type: Test-OK
fixture_id: T1234A
fixture_rev: A
stage: bed_of_nails
customer:
  - - <Customer>
product_series:
  - - M1234
supported_products:
  - M1234A
  - M1234B
  - M1234C
active: false
introduced: <YYYY-MM-DD>
design_files: <altium/mech path>
---
# T1234A — BoN fixture for M1234 (Rev A)  
  
## What this fixture is (1–2 lines)  
Bed-of-nails rig used to test M1234 series; Rev A test definition.  
  
## Coverage  
### Validated (allowed to run)  
- M1234A: ✅ <conditions/notes>  
- M1234B: ✅ <conditions/notes>  
- M1234C: ✅ <conditions/notes>  
  
### Not validated (do NOT run without sign-off)  
- M1234D: ⚠️ why / what differs / what needed to validate  

## Operator procedure (operator-proof)
1) Placement/alignment:  
2) Clamp:  
3) Start test:  
4) Pass/fail handling:  
5) Common operator mistakes (max 3):  
  
## Interfaces (high level)  
- Power rails + limits:  
- Programming/debug access:  
- Special nets / straps:  
  
## Maintenance  
- Wear items / spares (probes, cables):  
- Periodic checks (interval + what “good” looks like):  
- Cleaning / handling notes:  
  
## Known issues (repeat offenders only)  
- Symptom → likely cause → fix → evidence (worklog link)  
  
## Change policy (prevents drift)  
- Small fix (≤1 day, no behavior/coverage change): TaskNote linked here  
- Coverage/behavior change OR hardware change: new project `PRJ - T1234A - Rev<next>`  
- After change: update `supported_products` + add evidence link  
  
## Active work (TaskNotes)  
- Use TaskNotes/Bases view filtered by:  
- `fixture = [[T1234A]]` AND `status != done` AND `status != cancelled`  
  
## Links  
- Customer hub: [[<Customer>]]  
- Product series: [[M1234]]  
- TestTrack suite: `<path>`  
- Design files: `<path>`  
- Photos/attachments: `12_ATTACHMENTS/<...>`  
- Projects:  
- [[PRJ - T1234A - Build]]  
- [[PRJ - T1234A - RevB]] (when it happens)