Bolle
Well-known member
I scored this LC from eBay for 25€ the other day.
The pictures of the auction showed it had an accelerator of some kind. The seller stated he could not test the unit so actual condition was unknown.
Today the nicely packed up LC arrived at my place.
It has the case with support for two floppy drives but comes with an 80MB HDD instead of the second floppy. Yellowing is not too bad on the case. It is just a little bit dirty and has yet to be cleaned:
It has one of the earlier fan+speaker bridge thingies inside without the actual plugs on the motherboard but uses the contact springs on the plastic bridge to connect speaker and fan to the board.
Never had seen one of those yet in person. All my other LCs seem to have later logicboards with separate pin header plugs for speaker and fan.
The logicboard is dated 1990 and also has one of those big guys installed:
I was already in process of snapping of the old caps that had started to leak pretty badly already. The board was still working though to begin with.
How would I go about replacing the 2200uF cap. Use a big 2200uF one again or put in the regular 47uF instead?
Anyways the reason for getting that one in the first place was the accelerator that came with it.
It is a Total Systems Enterprise featuring a 030 and a 68882 FPU:
View attachment 11529
The card is running at 32MHz as it seems when put into a LC.
The 030 and 68882 are spec'd for 50MHz though, so I guess it will run up to 50MHz when put in an LC III or something with a 25MHz base clock.
Also notice the pre production part number on the 68030.
The machine came equipped with some sort of third party power supply which must have been part of the CPU upgrade back then. It has a little bit more beef on the 5V rail than the stock LC power supplies.
The upgraded PSU would work just fine but give me funny smells after running a few minutes so I swapped it for a stock LC PSU I had in the spare parts drawer. The accelerator was still working stable so I guess I will keep it that way.
The pictures of the auction showed it had an accelerator of some kind. The seller stated he could not test the unit so actual condition was unknown.
Today the nicely packed up LC arrived at my place.
It has the case with support for two floppy drives but comes with an 80MB HDD instead of the second floppy. Yellowing is not too bad on the case. It is just a little bit dirty and has yet to be cleaned:
It has one of the earlier fan+speaker bridge thingies inside without the actual plugs on the motherboard but uses the contact springs on the plastic bridge to connect speaker and fan to the board.
Never had seen one of those yet in person. All my other LCs seem to have later logicboards with separate pin header plugs for speaker and fan.
The logicboard is dated 1990 and also has one of those big guys installed:
I was already in process of snapping of the old caps that had started to leak pretty badly already. The board was still working though to begin with.
How would I go about replacing the 2200uF cap. Use a big 2200uF one again or put in the regular 47uF instead?
Anyways the reason for getting that one in the first place was the accelerator that came with it.
It is a Total Systems Enterprise featuring a 030 and a 68882 FPU:
View attachment 11529
The card is running at 32MHz as it seems when put into a LC.
The 030 and 68882 are spec'd for 50MHz though, so I guess it will run up to 50MHz when put in an LC III or something with a 25MHz base clock.
Also notice the pre production part number on the 68030.
The machine came equipped with some sort of third party power supply which must have been part of the CPU upgrade back then. It has a little bit more beef on the 5V rail than the stock LC power supplies.
The upgraded PSU would work just fine but give me funny smells after running a few minutes so I swapped it for a stock LC PSU I had in the spare parts drawer. The accelerator was still working stable so I guess I will keep it that way.