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Roland TR-505

 

 

 

Roland Tr505

info Country: Japan
Weight: 1,0 Kg
Dimensions: 305 x 175 x 75 mm
audio demo trend price : 150€
manual schematics free tr505 samples demo video comments

Roland TR-505
Rhythm Composer (1986)

 

Budget portable digital drum machine with crunchy samples and a classic sequencer.

The 505 is a scaled-down version of the classic Roland TR-626 with less features and sounds.

Roland rhythm composer Tr505 (1986)
display

info DRUM MACHINE Main panel features a simple LCD display, 15 buttons, 2 knobs and 16 trigger pads (no velocity).

Rear panel terminal connectors:
- main signal out
- headphones
- pedalswitch input for start / stop
- Midi interface
- tape interface.

ac Power supply is a 9V external PSU 100 mA with -) plarity or 6 X 1.5V batteries.





edit VOICE main core 8 bits CPU Roland R15179247 basically a HD6301 derived from classic 6800 manages 8 channels polyphony.
Each voice features and assigned sample PCM which edit is limited to volume parameter and several polyphony restrictions :
- 1 tom per time (or timbale)
- rimshot OR clap
- 1 conga per time
- 1 cowbell per time
- crash OR ride.


R15179247

 

edit SAMPLES wavetable is 128 KB ROM (at IC11) which contains 16 PCM samples at 8 bits depth 25 kHz rate .The internal samples are mostly standard drums from this era with some extra ethnic samples, very similar to Roland TR727 set.
TECH: seems to be some third part project to replace or expand the original ROM with some alternative romset like Oberheim DMX, Linn Drum ...

 

internal PCM

Low Conga Hi Conga Timbale Low Cowbell
Kick Snare Low Tom Mid Tom
Hi Cowbell Clap Crash Ride
Hi Tom Rimshot CL Hihat OP Hihat






edit
SEQUENCER the 505 features 2 recording modes:
- step mode
- real-time note insert.
Step numbers can be changed for other scale time (default is 4/4) and variable odd tempo.
Some classic edit functions such as accent, insert, copy or delete.
SYNC internal frequency from 40 to 240 BPM or slave mode to external Midi clock.

 

rec


RC

 



edit MIDI is limited to note on/off and 5 velocities and Pads can trigger assignable Midi notes (but no velocity).
NOTE: No sysex dump implementation.

RC

 

 

edit MEMORY :
- 48 ROM patterns
- 48 RAM patterns
- 423 measures
- 6 songs.
Patterns and songs can be saved only to tape using the appropriate interface.

motherboard

 

 

edit MODIFICATION my mod: I added 8 triggers out that drive some percussive modules like Simmons SDS. Other common modifications are samples pitch tuning and circuit bending (I did this work on the tr-626 which is pretty similar- you can check it HERE)

 

Trigger out mod beat

Trigger out mod




edit RELATED FAMILY:

roalnd cr1000 Cr-1000 a kind of preset version of the TR505 with same PCM sounds but it lacks the sequencer.

Roland tr626 -

TR-626 - includes all 505 sounds plus others, also more features and options like pitch tuning and separate analog outputs.

Roland tr626 - Tr-707 previous mo del, also all digital.
Exists also in a latino percussions version model TR-727.


 

 

effet VST PLUGIN / SAMPLED VERSION there are some free and commercial samples set:

  name price demo
free tr505 samples

machines.hyperreal

sonof8bits

VST planet

FREE
sample pack
n/a
free drum loops DJ Quartzlocker FREE
(distorted tr505)
n/a


 

demo AUDIO DEMO:

demo shake the TR505 with Roland D-50
demo custom pattern 1
demo custom pattern 2
demo roland pattern 1
demo roland pattern 2
demo roland pattern 3


 

video VIDEO CLIP SELECTION

Roland TR-505 Rhythm Composer Demo Roland TR-505 with Boss Dr110 Roland TR-505 GT - Circuit bending
Composer Demo with Boss Dr-110 Circuit bending


 

roland tr505 drum machine




manual
ROLAND TR505 MANUAL

 

 

 

 

TR-505 reset FACTORY procedure

HOLD PATTERN GROUP A AND MODE AND POWER ON.

 

edit

 

 

 

 


service manual tr505
Roland TR-505 SERVICE MANUAL

 

 

 

brochure
edit brochure picture

 

 

edit A gallery of weird BENT 505 from BURNKIT 2600
bentbent
bentbent
bentbent

 

 

 


Roland TR-505 FOR SALE


Roland TR-505 FOR SALE
CHECK OUT EBAY OFFERS


 

 

motherboard logo circuit roland eprom


manual

-cheap
-portable


manual

-sound
-limited Midi
-limited edit
comment
FOR LOFI GEEKS


REVIEW "classic budget TR machine! some pretty raw samples with no possible edit- lot of possible mod are available too for hackers."

 
roland logo

 

COMMENTS

 

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*but circuit bent machines gallery

Roland tr505 2.5 out of 5 based on 6 ratings. price €100