Astec AA19140 Power Supply
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Astec AA19140
| Preliminary Information | |
|---|---|
| Leak Risk | High |
| Mounting Technology | Through Hole |
| Capacitor Types | Aluminum Electrolytic |
| Destructive Entry | No |
| Power Requirements | |
| Input Voltage | 100-240V AC |
Power supply used in the Apple Macintosh LC line of computers. Apple Part Number: 614-0028.
Input: 100-240V 50-60Hz 1A
Output:
- +5V 4.75A
- -5V 0.075A
- +12V 1.0A
Known Issues
Symptom or Problem Encountered
Causes
- Mac LC won't start
Solutions
- Replace capacitors
Disassembly Notes
Requires only regular Philips screwdrivers.
Original Parts
ASTEC rev 3
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C8 | 1 | 180 µF | 400 V | Through Hole | 30 mm | 26.6 mm | 10 mm | 85 °C | Electrolytic | Nichicon | LQ |
| C11 | 1 | 47 µF | 35 V | Through Hole | 6.5 mm | 12 mm | 2.5 mm | 105 °C | Electrolytic | ||
| C17, C20 | 2 | 120 µF | 25 V | Through Hole | 5.3 mm | 15 mm | 2.5 mm | 105 °C | Electrolytic | ||
| C18, C21, C23 | 3 | 1200 µF | 10 V | Through Hole | 10.2 mm | 25 mm | 5 mm | 105 °C | Electrolytic | ||
| C19 | 1 | 1200 µF | 16 V | Through Hole | 12.7 mm | 20.3 mm | 5 mm | 105 °C | Electrolytic | ||
| C22 | 1 | 470 µF | 16 V | Through Hole | 8.3 mm | 20 mm | 5 mm | 105 °C | Electrolytic |
Replacement Parts
Basic PCB Name
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| C8 | 1 | LGW2G181MELB25 | Digikey Mouser LCSC |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Related Links
Alternative PSU used by Apple in the same computers
- Dyna Comp DCF 353 Power Supply
- Astec AA16251 Power Supply
- Tinkerdifferent Thread - LC475 PSU Recap Guide - Astec AA19140
- Mac 84 - Macintosh LC series Power Supply Recapping Guide (ASTEC, USA) Model AA19140