History:
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Hi all, this is the place to find the latest building documents for Black Corporation's Deckard's Dream polyphonic synthesizer. Currently, this project is at rev 1.0, PCB's are currently being released to builders. (18.Oct. 2017) and are being constructed. A new PCB version rev. 2.1 is planned and the release is planned for July 2018, this page is only for rev.1.x | ||
Info |
Current identified Errors/Omissions/Errata:
Resolution
Steve Sommers - Capacitor C188 designation is duplicated. C186 is missing.
From Roman:
PCB: Voice card
Rev 1.0
These are not used and were left in place for possible filter modifications. Leave the components spaces empty (do not put anything there).
PSU Board
Rev 1.0
PSU Board Changes per Roman:
Change C12 to 1uf 6.3V or higher
Change C13 - 330uf 6.3V or higher 8MM DIA /3.5 LS
C13 increased delays the boot of +3.3v digital rail, c12 reduced makes 5v analog rail boot faster,
so, DACs start with no problem
Without change sometimes they don’t start, since digital 3.3v comes to DAC before 5v
All boards
feel free to share videos, audio demos for this pages (contact me) |
For now we have 4 different versions of the DDRM Rev1.x and Rev2., each revision comes in a DIY version and assembled Version
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if you like my work, feel free to use my paypal gift function
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Jan 15,
2018
To apply the "glitch fix", you will need to solder two 1.0 Meg resistors per voice board, one for each oscillator. They can be easily added to the back side of the circuit board, so all existing components can remain unchanged.
In the schematic, the 1M resistors should be added to the voice board from IC4 pin 4 to +12V, and from IC4 pin 5 to +12V. Below is an image of the modification done to my voice board, showing you the optimal locations for the resistors to minimize lead length. The tolerance for the resistors is not critical at all, 5% resistors can be easily used. If needed, you can apply a small amount of silicon glue to hold the resistors in place, or even add insulation to the leads to prevent the possibility of a short.
click to enlarge
Bugtracker
further bugs, issues, problems are reported here (here are user reported issues due to soldering failures or other issues reported too)
https://github.com/ffont/ddrm-issues/issues
Deckard's Dream Home and Store: http://www.deckardsdream.com
Current BOM 1.10 from 08.Jan.2017
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REV1.1.0 CORRECTED THE AMOUNT OF DIP16 SOCKETS REV1.0.9 TL074 CHANGED TO TL064, TL072 CHANGED TO TL062. HEAT SINK, THERMAL PAD, COOLING FAN AND MOUNTING HARDWARE ARE OPTIONAL IF TL06X OPAMPS ARE USED. VOLUME KNOB AND SLIDER CAPS PART# CHANGED. REV1.0.8 CHANGED C12 TO 1uF, C13 TO 330uF ON THE PSU BOARD REV1.0.7 CHANGED R2 ON THE OUTPUT BOARD TO 22R, CHANGED C6 ON THE MOTHERBOARD TO 10uF REV1.0.6 CHANGED 1N5817 TO BAT85S ON THE MOTHERBOARD REV1.0.5 ADDED USB A TO USB B ADAPTER REV1.0.4 CORRECTED 30K MOUSER PART # IN A VOICE CARD REV1.0.3 CHANGED HEAT SINK QUANTITY, C2 ON OUTPUT BOARD IS 100uF NOW REV1.0.2: ADDED ST LINK PROGRAMMER |
(please note the version and changes at the bottom of the sheets. Also see Errors/Omission and Errata above)
Build Guide: http://www.deckardsdream.com/build
Voice Card Assembly Document. This was created by Lysandre Follet, and has been tested as correct by a couple builders.
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some users plugged the powersupply in a voicecard slot and earn a damaged ARM processor. to minimize this risk, few solutions: put a tape on the voicecard slots 2-8 or use a cable tie to shorten/bind the powercable between powersupply and breakoutboard as short as possible (you can´t attach the powersupply furthermore in a voicecard slot |
Firmware:
check the download location: http://www.deckardsdream.com/downloads/ for updates, i prefer to wait few weeks before you install a newer version, or check the closed facebook group for comments.
Description: DECKARD'S DREAM BOOTLOADER REV1.0
http://www.deckardsdream.com/downloads/DD-BOOTLOADER-REV2.0.hex
Description: Firmware
http://www.deckardsdream.com/downloads/DD-1.2.3.zip (updated factory presets file and an extra presets bank by Michael Rosner (comes as a BANK2))
http://www.deckardsdream.com/downloads/DD-FIRMWARE-REV1.2.1.bin (preferred)
Firmware installation procedure: Software Loading Procedure R0.9.3.docx
MIDI Chart (MIDI Control Change Message Mapping for the DDRM) http://www.deckardsdream.com/downloads/DD-MIDI-CHART-REV1.0.pdf
Shared Mouser Basket: https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=9ba27b85b3 (not approved - check for SMT caps)
Ultravox reply: "The cart doesn't include items that the BOM says are sourced from eBay, Small Bear, synthcube, etc."
About partsourcing: check the price for the next price break ( 3 resistors are more expensive than 10)
for EU users: order from www.TME.eu standard parts, its cheaper as mouser
Muffwiggler Forums:
Build: Deckards Dream General Build Thread
Discussion: DIY CS-80 imminent...(Deckard's Dream)
Parts Resources:
Synthcube complete parts kits: http://synthcube.com/cart/ddrm-deckard-s-dream-kit
Thonk Group Buys for CEM3340: https://www.thonk.co.uk/shop/curtis-cem3340-ic-vco-chip/
Metal Case: DIY Hub http://siddarthianinnovations.bigcartel.com/product/deckards-dream-pre-order-front-panel-and-rack-case
Wooden Case: Ross Lammond (UK) http://www.lamonddesign.co.uk/index/
a very helpful Tool for the SMD Soldering: (and sponsoring for this website hosting)
(link here )
Wooden Case: Ross Lammond (UK) http://www.lamonddesign.co.uk/index/
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