[ POWER CONVERSION // IDENTIFIED MODEL ]
Commodore Amiga 2000 PSU (312503-02)
Commodore Amiga 2000 internal PSU assembly 312503-02 family. This entry covers the specific model or bounded historical system assembly identified here; suffixes and supplier revisions are not presumed equivalent.
HIGH-VOLTAGE SAFETY: Disconnect mains before external inspection. Never open a PSU. Internal capacitors can retain dangerous charge after disconnection. Do not probe or repair its interior; use qualified service or replace it.
Model-specific ratings & fit
| Manufacturer identity | Commodore Amiga 2000 internal PSU assembly 312503-02 family |
|---|---|
| Form factor / generation | Amiga 2000 proprietary internal PSU, early desktop computer |
| AC input | 110/220 V region/assembly versions; exact input and selector configuration is unit-label specific. |
| DC output | Nominal 200 W class; documented A2000 supply rails commonly +5 V 17 A, +12 V 5 A, −12 V 0.5 A; verify the assembly nameplate/manual revision. |
| Dimensions / mounting | A2000 chassis-specific internal PSU with proprietary mounting/ventilation and board harness. |
| Connectors | Four-pin motherboard power plug and separate disk-drive power leads; not PC AT/ATX. |
| Revision distinctions | A2000 suppliers and output ratings differ across production revisions; 312503-02 identification should be cross-checked with the actual OEM label. |
Compatibility & safe handling
- Verify full model, suffix, region and revision using the actual unit nameplate and matching manufacturer manual. Wattage and plug shape alone do not establish compatibility.
- Check AC input range, rail and combined output limits, derating, signaling/pinout, cooling direction, mounting and system qualification before installation.
- PSU modular-side cables are model-specific. Never reuse an unapproved lead; a matching plug can carry a different pinout.
- Server hot-plug is permitted only in qualified host configurations and under the host’s documented redundancy/live-service procedure.
- Never open or internally probe the supply. Retire damaged, wet, burnt, corroded, modified or unidentified units.
Revision & archival notes
A2000 suppliers and output ratings differ across production revisions; 312503-02 identification should be cross-checked with the actual OEM label.
Amiga hardware archive reproduces OEM/service material; compare Commodore service documentation and actual supplier nameplate. Record region, OEM, connector and fuse rating.
Photograph the full nameplate, model/FRU, supplier, revision/date code, line selector, cable ends, mounting orientation and source-document issue. Keep observed label data separate from test results.
Manufacturer or primary references
- Commodore Amiga 2000 PSU (312503-02) — manufacturer/product or primary technical referenceCommodore Amiga 2000 internal PSU assembly 312503-02 family. Check the exact revision, region and system support information.
- Intel ATX / ATX12V Power Supply Design GuideReference for desktop ATX context only. Proprietary historical and hot-swap server outputs are not made interchangeable by ATX standards.
The specific PSU nameplate and corresponding model/service documentation remain controlling.