Macintosh SE

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For more information, see this article's corresponding Wikipedia page: Macintosh_SE.
This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.
Macintosh SE
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

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. If it's not replaced with a bipolar capacitor, it will immediately and violently explode when powered.
  • This is likely the only capacitor that will need replacing in the device.

Disassembly Notes

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.

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.

Before removing the logic board, make sure all connectors including the small 2 pin speaker connector are unplugged to avoid destroying their pins.

A Mac SE Logic Board, revision 820-0250-A.

Original Parts

Logic Board - MACINTOSH SE 820-0176-B

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)

Capacitor Specifications and Footprint Information
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)

Analog Board - MACINTOSH SE ANALOG 820-0206-B 630-0147-C

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 cermaics and glass tantalums are not easily readable)

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C9 1 1000 µF 16V TH 16mm 25mm 7.5mm 105 °C Electrolytic Samyoung SXA (Discontinued, Equivalent to NXR)
C15 1 3.9 µF BIPOLAR 50V TH 18mm ? (50mm MAX) 8mm ? Bipolar Electrolytic ? ?
C14 1 4700 µF 16V TH 18mm 38mm 8mm 85 °C Electrolytic Samyoung SM (Discontinued, Equivalent to MHA)
C4, C13 2 220 µF 16V TH 10mm 18mm 5mm 85 °C Electrolytic Samyoung SXA (Discontinued, Equivalent to NXR)
C2, C7, C22, C25 4 100 µF 16V TH 8mm 13mm 5mm 85 °C Electrolytic Samyoung SM (Discontinued, Equivalent to MHA)
C19 1 10 µF 160V TH 10mm 18mm 5mm 85 °C Electrolytic Samyoung SM (Discontinued, Equivalent to MHA)
C11 1 33 µF 16V Axial TH 5mm 5mm (axial) 18mm ? Electrolytic Samyoung SM (Discontinued, Equivalent to MHA)
C18 1 22 µF 50V Axial TH 6.5mm 6.5m (axial) 20mm ? Electrolytic Samyoung SM (Discontinued, Equivalent to MHA)

Samyoung Substitution Guide

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]

Capacitors
RefDes Qty Compatible Part Number Order Links
C4, C11, C13, C16, C26, C32, C34, C38, C39, C62 10 336TTA025M / 336TTA050M Digikey Mouser
C36 1 105TTA050M / 105TTA100M DigiKey Mouser

Analog Board - MACINTOSH SE ANALOG 820-0206-B 630-0147-C

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 cermaics and glass tantalums are not easily readable)

Capacitors
RefDes Qty Compatible Part Number Order Links
C9 1 16YXJ1000MT810X16 / ESC108M016AH4AA Digikey Mouser LCSC
C15 1
C14 1 16YXJ4700M16X25 / 25YXJ4700M16X31.5 DigiKey Mouser LCSC
C4, C13 1 860020373010 / 16PX220MEFC6.3X11 DigiKey Mouser LCSC
C2, C7, C22, C25 4 860020372006 / 16PX100MEFC5X11 DigiKey Mouser LCSC
C19 1 ESH106M200AH9AA / 200CGX10MEFC8X11.5 DigiKey Mouser LCSC
C11 1 336TTA025M / 336TTA050M Digikey Mouser
C18 1 226TTA050M DigiKey Mouser

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

Related Links

References

  1. 1.0 1.1 1.2 1.3 "Capacitor Replacement". 68kMLA Wiki. Archived from the original on August 24, 2017. Content licensed under GNU FDL.