Amiga SID adapter second revision, compatible with Amiga 500

Check Amiga 3000 previous version here:

https://www.pcbway.com/project/shareproject/Amiga_SID_Music_Card_Zorro_II.html

Under permission given on Github by call286, GadgetUK and LIV - authors of new revision. Please check GitHub page too

AmigaSID adapter is used to play SID chip music on Commodore Amiga 500(and others) using Frodo, DeliTracker, and some other software.

Adapter is compatible with SID chips and ArmSID/SwinSID.

Forked from https://github.com/Sgw32/AmigaSID which forked from http://www.amibay.com/showthread.php?108629-Amiga-SID-player-for-Zorro-slot

Can't find the original thread on Amibay sadly, so i can't do full credits here.

Changes:

• Changed most of the components to SMD, major rerouting.
• Added 100k pull down resistor and 470pF capacitor to EXT_IN of SID like pointed out at the original schematics.
• Added 245 buffer to D0-D7 databus lines.
• Changed crystal to 7050 part.
• Tied Amiga /RST to RST of SID via solderjumper (default connected)
• can be removed with a cut and be used at A4k with it's power LED connected to H1
• Added 8 jumpers (JP2-JP9) to set the memory address the SID can be accessed from the player side (needs patched player to use that address)
• Added filter caps to vcc lines of the IC's
• Changed audio connector to a more common type
• Moved filter caps closer to IC's
• Added logo
• Floating 74LS00 inputs tied to VCC
• Flipped polarity on C10 (SID_AUDIO_IN)
• Added jumper to disconnect audio out cap from output pins
• instead you now can fit a little amp board like shown Gadgets video about the original version of the card
• also added one GND and one 12V pin for powering the amp
• Thanks to LIV2 and GadgetUK for the help in this project.

Boards were kindly provided by SparxUK - Thanks mate! The boards worked fine on my A500 with a Zorro2 adapter and a NanoSwinSID.

Jumper setting

The bank of jumpers on top of the card (JP2-JP9) is used to set the memory address used by the card and the players.

Jumper setting for EE range:

JumperSetting

JP21-2 (LOW)

JP32-3 (HIGH)

JP42-3 (HIGH)

JP52-3 (HIGH)

JP61-2 (LOW)

JP72-3 (HIGH)

JP82-3 (HIGH)

JP92-3 (HIGH)

New authors of the project also fixed software for Amiga 500, so you can use this device with Matze's Amiga 500 Zorro adapter. Please check project GitHub page on links.