Hello,
The Expert 2+ is an old Expert 1.1 with only (and
really ONLY) the main board (digital board) replaced by
the new ACVS MSX2+Turbo (7Mhz) board.
I think we can buy a very good (used) Expert 1.1
here for you by US$ 30-40. Then Ademir can install his
new board and send the complete Expert2+Turbo for you.
I don't know how many dollars the new ACVS board
costs (i will check). But I think Ademir can sell you just
the PCB, without the components. Then you can build your
own MSX2+Turbo. You will only need the recorded PALs and
EPROMS. Actually, it's very hard to find RP5C01 and V9958
around here. You would have to pay the shipping and fees
of your country.
Some features of the new MSX2+Turbo ACVS board:
256 Kb mapper on board, and SIMM sockets for up to
4 1Mb (30-pin) SIMM memory cards (used in PC). Even having
a 1Mb SIMM connected, you can enable the amount of memory
you want (128, 256, 512 Kb) by jumps in the board.
3.5/7 Mhz clock, switched by soft or hard, by a
external switch, or by BASIC with TURBO ON/OFF commands.
The cassete in/out and routines in BIOS were eliminated
for the implementation of Turbo commands.
DIN RGB output. Though the pinout is different of
Turbo-R, you have only to swap two or three pins to get
the standard MSX RGB pinout. I already made this because
I made a conversion of a CGA monitor to MSX RGB in my
Expert 1.1, Then to plug it to a Turbo-R A1GT (the monitor
was for Jose' Rafanelli, a friend of mine), I just swapped
the position of some pins. The level is the same.
Before you ask, I jumped all the digital input sector of
CGA monitor and applied the RGB signal to video amplifier,
so the monitor displayed the correct colors on Expertm and
then in Turbo-R. But it can't support 50 Hz...
Paralell printer output (centronics) IDC-24 pin.
FM (YM2413) on board (we can't find these here too).
Video output - Audio output (RCA).
RF output to channel 3-4 (PAL-M).
Power: 127-220 Vca / 60 Hz
Some changes have to be made, as you can see, in
the power supply and video circuits, but I think it's not
difficult to make the thing work in Europe/Japan.
Two external slots (Expert original slots), and
two internal slots (inside the CPU). You won't need a
slotexpander.
This board works with a new FDD interface for 2
drives, that support full 7Mhz access. And is memory-addressed,
100% according the MSX standards.
In the last meeting (MSX JAU'98) we saw old and
new demos/games running OK in this board, like Pentaro
Odyssey, Calculus, F1 Spirit 3D, Solid Snake 1.21, etc...
If you can wait till next week, I will put complete
information (with pictures) about all ACVS/CIEL products in
my (almost finished) MSX homepage.
I think that selling MSX products to Europe/Japan is
in the plans of Ademir Carchano, but he doesn't have time to
read/write e-mail, make homepages.... That's why we have to
help him so much.
Don't be afraid of asking !
Greets
Werner Kai
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