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Macintosh SE/30
A popular system for hobbyists due to the compact size and expansion capabilities. The SE/30 is powered by a Motorola 68030 at 16MHz with FPU. The system is known to support up to 128MB memory, though you will either need a 32-bit clean ROM or run with 32-bit addressing enabled in the software side.
Replaces the Macintosh SE model which was based on the Motorola 68000 CPU.
Expansion
There is a single "SE/30 PDS" expansion port, though you are able to get creative with PDS adapters in order to fit multiple expansion cards inside the chassis. Ethernet is probably one of the most popular options, along with CPU accelerators.
Troubleshooting
Jittery Video
Description: This common problem is not mentioned on the RMS webpage. It's usually caused by problems in the 4 pin connector (marked "P5" on the analog card) interface between the analog card and the CRT yoke. One or more pins in the analog card connector develop bad solder joints. A bad solder joint can cause excessive heating which causes heat corrosion in the associated pins within the 2 connectors. The heat corrosion will cause discoloration of the white connector shells.
Repair:
- Verify that the lug of the black/white ground wire from the CRT neck video card is firmly screwed down.
- If it is loose, tighten the screw and retest before doing following steps.
- On analog card, remove old solder from all 4 pin connections and resolder all 4 pins.
- If there is connector discoloration: Identify which pin pair is closest to discoloration. Scrape down the male pin with sharp pointed xacto knife blade. Use tweezers or needle nose pliars to compress the female pin so that has tighter grip on male pin.
Replacement Tantalum Capacitors
REF DES CAPACITANCE VOLTAGE CHIP CASE REPLACEMENT MANUFACTURER (microFarads) (VDC) CODE PART NUMBER 1.0 50 <--(ORIGINAL PART RATING) 1.0 35 B TAJB105K035R AVX C6 1.0 25 B 293D105X9025B2T Sprague 1.0 35 B 293D105X9055B2T Sprague 1.0 25 B T491A105K025AS Kemet 1.0 35 B T491B105M035AS Kemet C1,C3 47 16 <--(ORIGINAL PARTS RATING) C4,C5 47 16 C (Available) C7,C8 47 16 D 293D476X9016D2T Sprague C9,C10 47 16 D T491D476K016AS Kemet C12,C13 47 16 D ECS-T1CD476R Panasonic Dimensions: CASE EIA Length Width CODE SIZE A 3216 0.126 " 0.063 " 3.2 mm 1.6 mm B 3528 0.138 0.110 3.5 2.8 C 6032 0.236 0.126 6.0 3.2 D 7343 0.287 0.170 7.3 4.3
Notes
Press the interrupt switch on the side of the computer and type dm 4082E853 20 into the message box and press return. This will return the message "WHAT ARE YOU STARING AT?"
Modifications
How many cards can be installed in the SE/30 with only one PDS slot?
In Macintosh, six slot addresses (9, A, B, C, D, E) are assigned to the extended slots, and each extended slot has its own address space as listed below.
Therefore, the SE/30 can theoretically harbor six cards, though it has only one slot on the logic board. The problem are (1)how to install more than one card to a single PDS slot, and (2)how to supply much more power to support up to six cards.
16M byte Standard Address Space 256M byte Super Address Space Slot 9 F900 0000 ~ F9FF FFFF 9000 0000 ~ 9FFF FFFF Slot A FA00 0000 ~ FAFF FFFF A000 0000 ~ AFFF FFFF Slot B FB00 0000 ~ FBFF FFFF B000 0000 ~ BFFF FFFF Slot C FC00 0000 ~ FCFF FFFF C000 0000 ~ CFFF FFFF Slot D FD00 0000 ~ FDFF FFFF D000 0000 ~ DFFF FFFF Slot E FE00 0000 ~ FEFF FFFF E000 0000 ~ EFFF FFFF
For the PDS slot of the SE/30, a 120-pin Euro-Din connector is soldered on the logic board.