Deckard's Dream Synthesizer
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.
Product Info:
the Deckard's Dream product is available as Build to order and DIY KIT Version, both released in 2017.
Its also known or coined as the "DDRM".
The difference in the DIY KIT and assembled (Build to order) are:
- the component format, the DIY KIT is mostly THT, the build to order synth is mostly in SMT.
- The case size is not as deep for the build to order as it is for the DIY.
Note: Although the DIY has most of the SMT devices pre-installed onto the PCBs, there are over 675 SMT decoupling capacitors (0805) and one small (SOIC8) power switch device that MUST be installed by the builder, in addition to the through hole components
A addional 1U expander is planned - more later.
Examples of Presets and voices: https://soundcloud.com/deckardsdream
Current identified Errors/Omissions/Errata:
| Date | Location | Identified issue | Resolution
|
|---|---|---|---|
| Oct 20, 2017 | PCB: Motherboard rev 1.0 | Steve Sommers - Capacitor C188 designation is duplicated. C186 is missing.  | From Roman:
|
| Oct 21, 2017 | PCB: Voice card Rev 1.0 | Resistors R40, R45, R151 and R146 have space on the circuit boards, but there is nothing specified in the BOM | These are not used and were left in place for possible filter modifications. Leave the components spaces empty (do not put anything there).
|
| Nov 11, 2017 | PSU Board Rev 1.0 | DACs not initializing on some boards. Not reflected on BOM or revised version yet. | 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, Without change sometimes they don’t start, since digital 3.3v comes to DAC before 5v |
Deckard's Dream Home and Store: http://www.deckardsdream.com
Current BOM 19.Oct. 2017 : DD-BOM-REV1.0.7.xlsx DD-BOM-REV1.0.7.pdf
(please note the version and changes at the bottom of the sheets. Also see Errors/Omission and Errata above)
Build Guide (Under Construction): http://www.deckardsdream.com/build
Firmware:
Description: DECKARD'S DREAM BOOTLOADER REV1.0
Download filename: DD-BOOTLOADER-REV1.0.hex
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/
Recent space activity
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DDRM Expander commented Oct 06, 2022
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Space contributors
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