[Mar/26/2003]

Amstar LaserBase 1981

XBC-101-00-1 - CPU board
  Z80A (D780C-1)
  2 NB5K8253
  2 2114 Rams
  8 Dipswitches

XBC-102-01-1 - RAM board?
  HD46505R
  32 MB8118 Rams

------------------------------------

Filename  Label Type   CSum Description
--------- ----- ------ ---- -----------------------------
2532.1    1     2532   9316
2532.2    2     2532   5662
2532.3    3     2532   7EA7
2532.4    4     2532   7CAC
2532.5    5     2532   C6AA (Marked F.F.)
2532.6    6     2532   16BE
2532.7    7     2532   CF6C (Marked F.F.)
2716.8    8     2716   9601 (Marked F.F.)
TI2716.Z1 Z1    TI2716 D925
--------- ----- ------ ---- -----------------------------

I believe the F.F. markings on these chips show that
these roms have been changed to Future Flash.

It is unknown what the Z1 chip is, but the label screened
on the board under the socket says 2716.  All the identifying
numbers have been scratched off and has Z1 stamped on it.
It appears that each one was then numbered by hand in red
marker and stamped with white ink with Z1.

The Z1 chip was read from 2 different boards, it is Valid.
The chips were numbers 69 and 82, both read the same. Turns
out it was a TI2716.  The TI chip has A10 on a different pin
than a standard 2716.


03/26/2002


[Feb/03/2002]

Amstar LaserBase 1981

XBC-101-00-1 - CPU board
  Z80A (D780C-1)
  2 NB5K8253
  2 2114 Rams
  8 Dipswitches

XBC-102-01-1 - RAM board?
  HD46505R
  32 MB8118 Rams

------------------------------------

Filename  Label Type CSum Description
--------- ----- ---- ---- -----------------------------
2532.1    1     2532 9316
2532.2    2     2532 5662
2532.3    3     2532 7EA7
2532.4    4     2532 7CAC
2532.5    5     2532 C6AA
2532.6    6     2532 16BE
2532.7    7     2532 CF6C
2716.8    8     2716 9601
2716.8a   Z1    2716 9E00 Stuck bits 0x000181 (Mask ROM)
-------------------------------------------------------
It is unknown what the Z1 chip is, but the label screened
on the board under the socket says 2716, so it was read
that way.  All the identifying number have been scratched
off and has Z1 stamped on it.

02/02/2002



[May/15/2001]

u1-4c8e
u2-3f46
u3-522b
u4-2e67
u5-50bf
u6-6799
u7-2542
u8-9601
u9-d895

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