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Project

Projecttitel: RE-808

Status: IN PROGRESS

Startdate: 11/2021

Duedate: 12/2022

Last Update: 17.Nov.2022

Manufacture link: https://shop.re-303.com/product/re-808-bundle-3rd-run-advance-order/

source: Facebook.



after the RE-303, RE-606, RE-909 we have the RE-808 replica to build.

its an replica, which means 99.9% of everything is a replica - the pcbs, the case, the parts.

the only difference are replacement tactile switch of the sequencer.

but you can repair your TR-808 with the RE-808 parts.


Infos and groups:

https://www.facebook.com/groups/1095915370823319


BOM:

PCBs and some parts are available from the RE-303 shop

Cases and side panels are available from Kumptronics


BOM.RE808.Release v1.0.xlsx

Start/Stop cover and Tap cover of the switches are available from few Facebook users for now, maybe available later thru other suppliers.


Spacers (not in the BOM - but maybe supplied with the RE-808 case)

7 3 x 8mm FF Hex Spacer
4 3 x 10mm FF Hex Spacer
5 3 x 16.4mm FF Hex Spacer
3 3 x 18mm Hex Spacer
2 3 x 8mm MF Hex Spacer 8mm w/ 6mm Screw

Buildguide: (uploaded 08.May.2022 by DSL-man)

RE-808 Build Guide v1.0.pdf

RE-808 Wiring Guide v1.1.xlsx

RE-808 Switchboard Assembling v1.0.pdf

Alps Switches Modding Guide v1.0.pdf

RE-808-MYC-manual-midicable.pdf


NEW: RE-808 Case assembling guide. RE-808 assembly guide.pdf

Placement guide:

RE-808_Component_Placement_Guide_v1.0.0.pdf


Firmware Installation (on your own risk)

  1. turn on and send 808.sysxex with sysex librian tool
  2. turn off and on again
  3. send the boot loader sysex (1.30 version)
  4. turn off
  5. turn on while hold Step1 (all lets flashes like night rider mode)(some older boot loaders don't have the night rider mode)
  6. now send the REEMU 1.3.0 sysex
  7. machine restarts byself in 1.3.0 mode
  8. turn off and on the 808
  9. send the 808.sysex again
  10. reload the boot loader 1.4.3 in boot loader mode (hold step1) and upload the REEMU 1.4.3 sysex

Issue List


IDIssueFixdate

fixed version

1CPU mounting

As you can see you also need to do a jumper wire between the solder point marked A on the pixie cpu and pin 10 (!WE pin) of *any* of IC 7,8,9 or 10 (they’re all connected to the same signal)
Please note:
* This is on the back of the 808
* you solder the pins on the cpu on the “wrong“ side
* the jumper wire can be soldered directly as it’s just one wire, I use a pin header and patch cable here mainly during development as I can easily remove the cpu without having to desolder anything
* as the cpu is upside down, make sure you connect the midi wires the correct way!
* as always - pin 1 and 42 is unused and can be left unconnected (pin 1 is the hole with a square pad)

01/2022
2PSU 

Do not fit the DC jack on the PSU circuit board. Its not used and it is not wired correctly.

use a cable for the jack as shown for example

01/2022
3Tactiles /caps install

heres a tip about the installation of the tactile caps:


01/2022
4MIDI WIRING

  credits to a FB User..

11/2022
5Silkscreen wrong 

11/2022
6Mainboard resistors

11/2022
7guide /tip

for the voice board: 

first install all 1/8watt resistors on bottom of the pcb R1-9 are 1/8w or the switchboard do not fit

use MLCC caps there and no IC socket. for IC1.

when you have a solder frame: install the flat Trannys and ic sockets before you install the other parts


for mainboard

use for the noise transistor and muting trannys - ic socket pins to swap/change the trannys

install good trimmers from nearside instead cheap trimmers from component side - better calibration possible

11/2022
8Transistors - sequencer failure

use sockets for the muting transistors.

some users reported issues in combination with the pixie CPU, boot/start problems.

the muting Transistors affect this  - you can remove this.

1.Dec.2022
9Power Pinout

credits by Martin.J.K  - Thank you

02.Jan.2023
10general

install good trimmers on back side (solder side) - for easier calibration

install the BA662 clone on solder side - in this was you can use a socket

install the muting JFETS and noise Transitor on solder side for easier swapping

install R333 on solder side to give you the opportunity to replace this with a trimmer (50k) to change the handclap sound..

02.Jan.2023
11bugfix

install a jumper as shown to get your 808 working as designed

03. Jan.203


Version Date Comment
Current Version (v. 21) Jan 03, 2023 22:08 Patrick Joericke
v. 72 Oct 04, 2024 17:57 Patrick Joericke
v. 71 Oct 04, 2024 17:49 Patrick Joericke
v. 70 Oct 04, 2024 17:47 Patrick Joericke
v. 69 Oct 04, 2024 17:47 Patrick Joericke
Troubleshooting added
v. 68 Sept 28, 2024 17:45 Patrick Joericke
v. 67 Sept 28, 2024 17:34 Patrick Joericke
v. 66 Jun 14, 2024 09:21 Patrick Joericke
v. 65 Jan 04, 2024 09:34 Patrick Joericke
v. 64 Jan 04, 2024 09:32 Patrick Joericke
v. 63 Sept 14, 2023 16:06 Patrick Joericke
v. 62 Sept 14, 2023 16:06 Patrick Joericke
GND wiring updated
v. 61 Sept 14, 2023 16:01 Patrick Joericke
Reverted from v. 59
v. 60 Sept 14, 2023 09:07 Patrick Joericke
grounding changed - no GND on the case needed.
v. 59 Jul 21, 2023 21:14 Patrick Joericke
new 808 cable picture in HD and cable length pdf
v. 58 Jun 02, 2023 07:41 Patrick Joericke
v. 57 Jun 02, 2023 07:36 Patrick Joericke
v. 56 Jun 02, 2023 07:29 Patrick Joericke
v. 55 Jun 01, 2023 10:10 Patrick Joericke
v. 54 May 31, 2023 09:44 Patrick Joericke
v. 53 May 31, 2023 09:41 Patrick Joericke
v. 52 May 31, 2023 09:29 Patrick Joericke
wiring pictures added
v. 51 May 11, 2023 14:50 Patrick Joericke
cowbell trimmers
v. 50 May 10, 2023 14:19 Patrick Joericke
LED Resistors
v. 49 May 09, 2023 20:05 Patrick Joericke
v. 48 May 04, 2023 12:47 Patrick Joericke
v. 47 May 04, 2023 12:46 Patrick Joericke
pictures added
v. 46 May 04, 2023 12:43 Patrick Joericke
v. 45 Apr 17, 2023 09:42 Patrick Joericke
v. 44 Apr 13, 2023 12:41 Patrick Joericke
v. 43 Apr 13, 2023 09:37 Patrick Joericke
v. 42 Apr 06, 2023 10:17 Patrick Joericke
Din jack mounting
v. 41 Apr 04, 2023 20:36 Patrick Joericke
Cymbal Mod
v. 40 Apr 03, 2023 12:29 Patrick Joericke
v. 39 Apr 03, 2023 12:09 Patrick Joericke
R200 fix - picture added
v. 38 Apr 03, 2023 12:02 Patrick Joericke
v. 37 Apr 02, 2023 20:32 Patrick Joericke
mods, improvements, tips
v. 36 Mar 27, 2023 20:32 Patrick Joericke
v. 35 Mar 05, 2023 17:17 Patrick Joericke
v. 34 Feb 24, 2023 10:49 Patrick Joericke
v. 33 Feb 24, 2023 10:00 Patrick Joericke
v. 32 Feb 23, 2023 16:38 Patrick Joericke
rotary switch
v. 31 Feb 21, 2023 08:26 Patrick Joericke
v. 30 Feb 21, 2023 08:21 Patrick Joericke
v. 29 Feb 21, 2023 07:42 Patrick Joericke
v. 28 Feb 07, 2023 11:17 Patrick Joericke
v. 27 Jan 20, 2023 12:02 Patrick Joericke
v. 26 Jan 04, 2023 16:26 Patrick Joericke
v. 25 Jan 04, 2023 15:40 Patrick Joericke
v. 24 Jan 04, 2023 15:39 Patrick Joericke
v. 23 Jan 04, 2023 15:35 Patrick Joericke
v. 22 Jan 03, 2023 22:15 Patrick Joericke
v. 21 Jan 03, 2023 22:08 Patrick Joericke
v. 20 Jan 03, 2023 13:52 Patrick Joericke
v. 19 Jan 03, 2023 13:45 Patrick Joericke
v. 18 Jan 03, 2023 13:41 Patrick Joericke
v. 17 Jan 03, 2023 13:41 Patrick Joericke
v. 16 Jan 02, 2023 12:43 Patrick Joericke
tipps added
v. 15 Jan 02, 2023 12:40 Patrick Joericke
v. 14 Dec 03, 2022 10:05 Patrick Joericke
v. 13 Nov 25, 2022 13:31 Patrick Joericke
build tips
v. 12 Nov 25, 2022 13:26 Patrick Joericke
v. 11 Nov 25, 2022 13:26 Patrick Joericke
case assembly guide added
v. 10 Nov 21, 2022 17:28 Patrick Joericke
v. 9 Nov 17, 2022 12:44 Patrick Joericke
v. 8 Nov 17, 2022 12:42 Patrick Joericke
v. 7 May 08, 2022 17:13 Patrick Joericke
v. 6 May 08, 2022 17:05 Patrick Joericke
v. 5 May 08, 2022 17:03 Patrick Joericke
v. 4 May 08, 2022 17:01 Patrick Joericke
v. 3 May 08, 2022 16:52 Patrick Joericke
v. 2 May 08, 2022 16:51 Patrick Joericke
v. 1 May 08, 2022 16:49 Patrick Joericke


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how to bugfix: https://diysynth.wiki.dsl-man.de/wiki/spaces/SKM/pages/336101402/How+to+bugfix

non commercial pages, all infos are best can do without warranty, without liability.