Alien Storm (bootleg, set 2): Difference between revisions

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|+ style="background:silver" | PCB Infos
|+ style="background:silver" | PCB Infos
|-
|-
|name || '''[http://www.progettoemma.net/index.php?gioco=astormb2 astormb2 on ProgettoEMMA]<br>[http://adb.arcadeitalia.net/?mame=astormb2 astormb2 on Arcade Database]'''
|name || '''[http://adb.arcadeitalia.net/?mame=astormb2 astormb2 on Arcade Database]'''
|-
|-
|description || '''Alien Storm (bootleg, set 2)'''
|description || '''Alien Storm (bootleg, set 2)'''
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!function
!function
|-
|-
|1x || [[68000|MC68000P10]] || || main PCB || 16/32-bit Microprocessor - main
|1x || [[68000|MC68000P10]] || 12MHz (24MHz/2) || main PCB || 16/32-bit Microprocessor - main
|-
|-
|1x || [[Z80|Z8400BB1-Z80BCPU]] || || main PCB || 8-bit Microprocessor - sound
|1x || [[Z80|Z8400BB1-Z80BCPU]] || 4MHz (8MHz/2) || main PCB || 8-bit Microprocessor - sound
|-
|-
|1x || [[6295|OKI M6295]] || || main PCB || 4-Channel Mixing ADCPM Voice Synthesis LSI - sound
|1x || [[6295|OKI M6295]] || 1MHz, PIN 7 HIGH || main PCB || 4-Channel Mixing ADCPM Voice Synthesis LSI - sound
|-
|-
|1x || [[LM324|LM324N]] ||  || main PCB || Quad Operational Amplifier - sound
|1x || [[LM324|LM324N]] ||  || main PCB || Quad Operational Amplifier - sound
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!status
!status
|-
|-
|1x || [[16v8|GAL16V8S-20HB1]] || main PCB || read protected
|1x || [[16v8|GAL16V8S-20HB1]] || PAL1 main PCB || read protected, extracted
|-
|-
|2x || [[16v8|GAL16V8S-20HB1]] || ROMs PCB || read protected
|1x || [[16v8|GAL16V8S-20HB1]] || PAL2 ROMs PCB || read protected, extracted
|-
|1x || [[16v8|GAL16V8S-20HB1]] || PAL3 ROMs PCB || read protected, not extracted
|}
|}


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==Notes==
==Notes==
update 20170604: added pics, better description, confirmed redump
update 20170604: added pics, better description, confirmed redump
----
update 20170615 from Caius:<br>
As stated in source, sound hardware is totally different from the original Sega System 18.Bootlegers used a single OKI MSM6295 PCM chip for both samples (stored on two device) and BGM (stored in four devices).Pin 7 of the OKI is high (tied to VCC). Clock on pin 5 of the OKI is @ 1 MHz. H-SYNC should be around 14.84 KHz but I'm not really sure, I can see board has some SYNC issue maybe due bad design.V-SYNC is measured @ 58.271 Hz (using an EL4583 SYNC separator with low-pass filter applied). Back to sound: it seems BGM is missing a track (at least music of first level).You can notice it by ourselves looking at this video I made and comparing it to a MAME or original PCB recording: https://www.youtube.com/watch?v=ZUOEtbNiTNk&feature=youtu.be I can't see any faults on PCB so I think this is a limit of the re-engineered sound hardware (like it happens for some CPS1 bootlegs). Maybe we can ascertain this if sound will be hooked up in emulation (currently it's missing). Lastly : there are three PLDs on PCB (one on CPU board, two on video board).All three are secured GAL16V8 and two of them are registered too. I was able to reproduce only two: a combinatorial and a registered with simple logic.The third is a registered one which use a strong feedback.


==Files==
==Files==
<gallery widths="150px">
<gallery widths="150px">
Image:409_assembled_PCBs.jpg|assembled PCBs
Image:409_top_PCB_component_side.jpg|top PCB component side
Image:409_top_PCB_component_side.jpg|top PCB component side
Image:409_top_PCB_solder_side.jpg|top PCB solder side
Image:409_top_PCB_solder_side.jpg|top PCB solder side
Image:409_bottom_PCB_component_side.jpg|bottom PCB component side
Image:409_bottom_PCB_component_side.jpg|bottom PCB component side
Image:409_bottom_PCB_solder_side.jpg|bottom PCB solder side
Image:409_bottom_PCB_solder_side.jpg|bottom PCB solder side
Image:409_pin7_MSM6295.jpg|pin7 MSM6295
Image:409_pin5_CLOCK_MSM6295.jpg|pin5 MSM6295 CLOCK
Image:409_V-SYNC.jpg|V-SYNC
Image:409_68000_CLOCK.jpg|68000 CLOCK
Image:409_Z80_CLOCK.jpg|Z80 CLOCK
</gallery>
</gallery>


Latest revision as of 07:31, 17 September 2024

EMU Infos
dumper f205v, Caius
date 18/04/2006
emulator MAME 0.119u1
dev David Haywood
PCB Infos
name astormb2 on Arcade Database
description Alien Storm (bootleg, set 2)
year 1990
manufacturer

Technical references

CPUs

QTY Type clock position function
1x MC68000P10 12MHz (24MHz/2) main PCB 16/32-bit Microprocessor - main
1x Z8400BB1-Z80BCPU 4MHz (8MHz/2) main PCB 8-bit Microprocessor - sound
1x OKI M6295 1MHz, PIN 7 HIGH main PCB 4-Channel Mixing ADCPM Voice Synthesis LSI - sound
1x LM324N main PCB Quad Operational Amplifier - sound
1x TDA2002 main PCB Audio Amplifier - sound
1x oscillator 24.000MHz main PCB close to main CPU
1x oscillator 8.000MHz main PCB close to sound CPU

ROMs

QTY Type position status
9x M27C512 1,2,3,4,5,6,7,8,10 main PCB dumped
1x TMS27C256 9 main PCB dumped
21x NMQ27C010Q 11-31 main PCB dumped
6x NMQ27C010Q 32-37 ROMs PCB dumped
1x N82S123N ROMs PCB dumped
1x N82S129N ROMs PCB dumped

RAMs

QTY Type position
2x UM6264-12L main PCB
1x MS6516L-10PC main PCB
2x MS6516L-10PC ROMs PCB
10x UM6116K-35 ROMs PCB
2x TMS62256-12NW ROMs PCB

PLDs

QTY Type position status
1x GAL16V8S-20HB1 PAL1 main PCB read protected, extracted
1x GAL16V8S-20HB1 PAL2 ROMs PCB read protected, extracted
1x GAL16V8S-20HB1 PAL3 ROMs PCB read protected, not extracted

Others

1x 28x2 JAMMA edge connector
1x 12 legs connector (legs 2-5 are marked LE RI UP DO, legs 7-10 are marked SER SPE ROL ATT)
1x trimmer (volume)
2x 8x2 switches DIP

Notes

update 20170604: added pics, better description, confirmed redump

update 20170615 from Caius:
As stated in source, sound hardware is totally different from the original Sega System 18.Bootlegers used a single OKI MSM6295 PCM chip for both samples (stored on two device) and BGM (stored in four devices).Pin 7 of the OKI is high (tied to VCC). Clock on pin 5 of the OKI is @ 1 MHz. H-SYNC should be around 14.84 KHz but I'm not really sure, I can see board has some SYNC issue maybe due bad design.V-SYNC is measured @ 58.271 Hz (using an EL4583 SYNC separator with low-pass filter applied). Back to sound: it seems BGM is missing a track (at least music of first level).You can notice it by ourselves looking at this video I made and comparing it to a MAME or original PCB recording: https://www.youtube.com/watch?v=ZUOEtbNiTNk&feature=youtu.be I can't see any faults on PCB so I think this is a limit of the re-engineered sound hardware (like it happens for some CPS1 bootlegs). Maybe we can ascertain this if sound will be hooked up in emulation (currently it's missing). Lastly : there are three PLDs on PCB (one on CPU board, two on video board).All three are secured GAL16V8 and two of them are registered too. I was able to reproduce only two: a combinatorial and a registered with simple logic.The third is a registered one which use a strong feedback.

Files

  • assembled PCBs

    assembled PCBs

  • top PCB component side

    top PCB component side

  • top PCB solder side

    top PCB solder side

  • bottom PCB component side

    bottom PCB component side

  • bottom PCB solder side

    bottom PCB solder side

  • pin7 MSM6295

    pin7 MSM6295

  • pin5 MSM6295 CLOCK

    pin5 MSM6295 CLOCK

  • V-SYNC

    V-SYNC

  • 68000 CLOCK

    68000 CLOCK

  • Z80 CLOCK

    Z80 CLOCK

409

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