Joust 2 readme.txt
by Joe Magiera
5-15-2014
joemagiera@ameritech.net

The current Joust2.zip file in MAME does not include two PROMs.
The current Joust2.zip file in MAME is a mixture of REV1 & REV2 ROMs.

Attached are two redumps of an all REV1 ROMset and mixture of REV1 & REV2.
All ROMs were read multiple times and verified with consistent readings.
Both ROM versions booted up properly in a real game.

The two PROMs were the same in both the all REV1 and mix REV1 & REV2 versions.

New submitted ROMsets:
Joust2.zip = all REV1 EPROMs and two PROMs.
Jst2r1r2.zip = REV1 & REV2 EPROM mix, plus two PROMs.

Jst2r1r2 is the same as the existing MAME Joust2 with updated ROM names to add/perserve more detail
and adding the two PROMs.

ROM file names:  IC location printed on PCB (e.g, IC10), then physical number/letter location 
(not present on sound boards) (e.g. 15D), ROM label (e.g. ROM2_REV1), ROM type (e.g. 82S129), 
PCB ID (e.g., ROM, RAM, sound), then all ".bin".

PCB pictures submitted of RAM, ROM, sound, power supply, heat sync.

Notes on sound PCB:
PCB has paper label with D-11298-3035 in large letters and 16-8850-159 in small letters.
PCB has 5766-10257-00 REV. A etched on the board.
IC's other than EPROMS and 74xx series chips:
Hitachi 6K1 HD68B09EP 40 pin IC
crystal is 8.000 MHz
Mitsubishi M58725P @ U5
Yamaha YM2151 @ U9
Harris (?) C155536-5 @ U18
PMI DAC1408A 6P @ U1
? YM3012 @ U10
TI MC1458P @ U11, U12, U16, U17

Notes on power supply PCB:
PCB has paper label with D-9444 in large letters and 16-8850-75 in small letters.

Notes on RAM PCB:
PCB has paper label with D-10556-3035 in large letters and 16-8850-157 in small letters.
PCB has 5780-10759-00 REV. C etched on the board.
IC's other than EPROMS, PROMS, and 74xx series chips:
24 x 4116 RAM @ IC98 through IC121
Harris M1-7649A-5 @ IC60, 12E, paper label A-5282-10292
Mitsubishi M58725P @ IC40 9D
VTI 352 V 1668 VC2034 5410-10313-00 @ IC74 10H and IC73 9H
Crystal is 12000.00 KHZ
4 x Fujitsu MBM2148L-55 @ IC78 4H, IC77 3H, IC76 2-3H, IC75 2H

Notes on ROM PCB:
PCB has paper label with D-9870-3035 in large letters and 16-8850-158 in small letters.
PCB has 5770-10339-00 REV. B etched on the board.
IC's other than EPROMS and 74xx series chips:
Signetics DM74154N @ IC68 8F
T (?) TC5514APL-2 @ IC59 5D
3 x Hitachi 6D3 N HD46821P 40-pin @ IC6 5-6C, IC5 2-3C, IC4 0-1C
Toshiba TC4049BP @ IC44 3B and IC43 2B
Motorola 1408L6 QQ8642 @ IC2 0B
Motorola MCM6810P @ IC7 0D
2 x VTI 40-pin 305 VL2001A 5410-09958 @ IC30 0J and IC 29 0I
Motorola 40-pin MC6802P OR1H8632 @ IC27 0G
Hitachi 40-pin HD6809EP @ IC28 0H

(END OF README)