Olivetti M24 and ATT 6300
- For more information, see this article's corresponding Wikipedia page: Olivetti M24.
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Olivetti M24 and ATT 6300
| Preliminary Information | |
|---|---|
| Release Year | 1983 |
| Leak Risk | High |
| Batteries | Yes, RTC known to leak |
| Mounting Technology | Through Hole, Sockets |
| Capacitor Types | Aluminum Electrolytic, Tantalum, Ceramic, |
| Destructive Entry | No |
Created by Olivetti and licensed by AT&T the M24/ 6300 is an 8086 PC clone with some proprietary changes
Known Issues
Battery on Motherboard Leaks
Causes
- RTC battery can leak and cause corrosive damage
Solutions
- Remove battery and clean with baking soda
No Power
Causes
- Pins soldered on the power supply board may be broken loose, especially for heavy parts like transformers or connectors like for the molex power cable.
-
Pins on transformer on second stage of PSU PCB cracked loose
-
Pins on Molex power connector for floppy drives on second stage of PSU PCB cracked loose
Solutions
- In a pinch, reflow the solder to reconnect it. But new solder should be added.
- After reflowing parts could be glued down to help avoid it happening again
Original Parts
Power Supply
PCB is split but does not duplicate RefDes', C1050 AL191/1-B, COD 303603 P, P-P3, PSU Model 303219M
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|
| 124, 134 | 2 | 680µF | 200V | Through Hole Radial | 30mm
10mm Pitch |
85C | Aluminum Electrolytic | Nichicon | PS-M |
| 132, 139 | 2 | 22µF | 25V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | Nichicon | SE-M |
| 50, 62 | 2 | 100µF | 25V | Through Hole Radial | 8mm | 85C | Aluminum Electrolytic | Nichicon | SE-M |
| 83B | 1 | 4.7µF | 63V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | ? | 0.03(M)
8410 Jacket is Yellow |
| 74 | 1 | 470µF | 16V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Ace | SE-M |
| 69 | 1 | 1000µF | 6.3V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Ace | SE-M |
| 28 | 1 | 220µF | 35V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Ace | SE-M |
| 35 | 1 | 2200µF | 10V | Through Hole Radial | 16mm | 85C | Aluminum Electrolytic | Nichicon | SE-M |
| 65 | 1 | 1000µF | 16V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Ace | SU |
| 35B | 1 | 2200µF | 25V | Through Hole Radial | 16mm | 85C | Aluminum Electrolytic | Nichicon | SE-M |
| 21 | 1 | 10,000µF | 6.3V | Through Hole Radial | 18mm | 85C | Aluminum Electrolytic | Nichicon | SE-M |
| 20 | 1 | 4700µF | 16V | Through Hole Radial | 18mm | 85C | Aluminum Electrolytic | Ace | S |