Wink (set 3)

EMU Infos

dumper	Corrado Tomaselli
date	26/05/2005
emulator
dev

PCB Infos

name	56
description	Wink (set 3)
year	1985.01
manufacturer	Midcoin

Technical references

CPUs

QTY	Type	clock	position	function
1x	Z8400AB1-Z80ACPU	3.072MHz(@6)	main PCB 12h	8-bit Microprocessor - main
1x	Z80		sub PCB	8-bit Microprocessor - main
1x	AY-3-8912	1.536MHz(@15)	main PCB j47.14h	Programmable Sound Generator - sound
1x	TDA2002	-	j50.13l	Audio Amplifier - sound
1x	oscillator	12.000MHz	main PCB o1.2a

ROMs

QTY	Type	position	status
4x	TMS2764	main PCB 2,3,4,5	dumped
2x	D27128D	main PCB 0,1	dumped

RAMs

QTY	Type	position
2x	TMS2114-20NL	main PCB j48.8h j49.9h
2x	D466C-2	main PCB j11.2e j27.5e

PLDs

QTY	Type	position	status
0x

Others

1x 22x2 edge connector
2x 24x2 legs connector from main PCB to sub PCB
1x trimmer (volume)(main PCB 11l)
3x 8 DIP switches banks (main PCB 5g 5h 5m)

Notes

main PCB is marked: "copyright 1985 by Midcoin" and "t56" on component side
main PCB is marked: "MDC 8501" on solder side
sub PCB is marked: "copyright 1985 by Midcoin" and "LS 917" on solder side ("LS" is the Italian for "Lato Saldature" which translates to "Solders Side")
main PCB is labelled: "H PASSED N° 0303" on solder side
sub PCB is encased in epoxy

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label format is:
-----------
| Midcoin | -> copyright
|    1    | -> ROM number
-----------

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update 20220223: better description

Files

• 

  assembled PCBs component side

• 

  main PCB solder side

• 

  Epoxy block center

• 

  Epoxy block center uncovered

• 

  Epoxy block center cpu removed

• 

  Epoxy block center sneaky bastards

• 

  Epoxy block center interconnect top

• 

  Epoxy block center interconnect underside

• 

  ROMs

56