Mighty Monkey (U.Games bootleg)

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EMU Infos
dumper f205v
date 03/04/2020
emulator MAME 0.221
dev Osso
PCB Infos
name mimonkeyug on ProgettoEMMA
mimonkeyug on Arcade Database
description Mighty Monkey (U.Games bootleg)
year 1983
manufacturer U.Games

Contents

Technical references

CPUs

QTY Type clock position function
1x Z80 8b 8-bit Microprocessor - main
1x LM324 - 8u Quad Operational Amplifier - sound
1x LM380 - 10u Audio Amplifier - sound
1x oscillator 18.432 1f

ROMs

QTY Type position status
1x TMS2516 9 dumped
12x TMS2532 1-8,10-13 dumped
1x N74S288N 6l dumped

RAMs

QTY Type position
5x SN74S201N 1n,1p,1r,1s,1t
1x AM9101DPC 4f
1x MWS5101DL3 5f
2x TMS4014JDL 3f,3h
4x 2114UCE 8n,8p

PLDs

QTY Type position status
0x

Others

1x 22x2 edge connector
1x trimmer (volume)(10r)
1x 8 DIP switches bank (11b)

Notes

PCB is marked: "UG" on component side
There are a number of hand made modifications:
most notably the 12x EPROMs TMS2532 are stacked in 6x pairs by 2x EPROMs each, one on top of the other.
Pairs are: 1-5, 2-6, 3-7, 4-8, 10-11, 12-13
All the pairs have pin 20 of the bottom EPROM connected with tiny wires to some TTLs as per following table:

Pair  -> TTL       (pin)(location)
1-5   -> SN74LS139 (12)  (7b)
2-6   -> SN74LS139 (11)  (7b)
3-7   -> SN74LS139 (10)  (7b)
4-8   -> SN74LS139 (09)  (7b)
10-11 -> SN74SL00N (09)  (2s)
12-13 -> SN74SL00N (09)  (2s)


Also, 4x RAMs 2114UCE are stacked in 2x pairs by 2x RAMs each, one on top of the other.
All pairs have pin 8 of the top RAM bent out and connected with tiny wires to some TTLs as per following table:

Pair  -> TTL       (pin)(location)
1-2   -> unmarked  (08)  (8l)
3-4   -> unmarked  (08)  (8l)
The TTL @8l is made of 2x unmarked TTLs, stacked one on top of the other.

Files

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