Macintosh SE
- For more information, see this article's corresponding Wikipedia page: Device.
| Preliminary Information | |
|---|---|
| Release Year | 1987 |
| Leak Risk | High |
| Batteries | Soldered OR Socketed |
| Mounting Technology | Through Hole, Sockets |
| Capacitor Types | Aluminum Electrolytic, Tantalum, Ceramic |
| Destructive Entry | No |
| Hardware Specifications | |
| CPU | Motorola 68000 @ 7.8 MHz |
| Graphics | Built-in 9" (23cm) monochrome CRT @ 512x342 |
| CRT Guides | |
| General Information · Repair Cautions | |
The Macintosh SE (not to be confused with the later SE/30) was released in 1987 and discontinued in 1990.
They contain the usual infamous leaky 3V lithium cells, and occasionally explosive bipolar capacitors. It does not contain any SMD parts.
WARNING: As this has a built-in CRT, treat it with the same caution and respect as a CRT TV. Always follow safe practices and assume lethal voltages are present, even on powered-off units. Always safely discharge the tube before working inside.
Known Issues
3V Lithium Batteries
Causes
- The lithium batteries soldered to the SE's logic board often rupture and leak highly corrosive contents, destroying any of the board or other materials it comes in contact with. They need to be removed in practically any example.
Solutions
- If the battery has ruptured without irreparably destroying the board, or has not yet ruptured, it should be removed as soon as possible. They can often be replaced with modern equivalents.
Analog Board Bipolar Electrolytic Cap Cap
Causes
- The capacitor C15 on the analog board tends to violently explode. If you see the monitor's image start to squish/collapse in any direction, immediately turn off and unplug the machine as quickly as possible, and let it sit for a while (days) to discharge, and replace C15 with the exact bipolar electrolytic before trying to use it again.
Solutions
- C15 should be replaced with a modern equivalent. Do not apply power to the machine if any above symptoms are exhibited.
Disassembly Notes
A fairly long T15 Torx screwdriver is required to open up any similar style of Macintosh. A few vendors on Amazon sell 6" long Torx bit sets.
Lay down a soft towel and set the Mac front side down, safely on the towel. Remove the two T15 screws towards the bottom of the rear, and the two T15 screws inside the handle pocket at the top. If the back shell does not lift off easily, you can use one of these screws to gently push down and separate the case.
Original Parts
Logic Board - MACINTOSH SE 820-0176-B (C) 1986
From the now-defunct 68kMLA Wiki: "Some logic board revisions may have a different number of capacitors, so make sure to look first and verify this information."[1]
(Only electrolytics listed for now, various glass tantalums(?) are not easily readable)
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C4, C11, C13, C16, C26, C32, C34, C38, C39, C62 | 10 | 33 µF | 16V | Axial through-hole | 5mm diameter | 5mm (axial) | 20mm max | 85 °C | Electrolytic | Nichicon | SE(M) |
| C36 | 1 | 1 µF | 16V | Axial through-hole | 5mm diameter | 5mm (axial) | 20mm max | 85 °C | Electrolytic | Nichicon | SE(M) |
Replacement Parts
Logic Board - MACINTOSH SE 820-0176-B (C) 1986
From the now-defunct 68kMLA Wiki: "Some logic board revisions may have a different number of capacitors, so make sure to look first and verify this information."[1]
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| Digikey |
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.
Kits
- Digikey BOM: https://www.digikey.com/
Related Links
References
- ↑ 1.0 1.1 "Capacitor Replacement". 68kMLA Wiki. Archived from the original on August 24, 2017. Content licensed under GNU FDL.