sander
_
This mod, you might find, could add a new edge to the way in which you Sync
your 808 to an external DIN-Sync clock.
This is what it entails;
€ Reconfiguring the Start/Stop footpedal to accept a V-Trigger input
€ Modifying the onboard Start/Stop Button (and the footpedal) to be enabled
regardless of whether the DINsync port has been set to "In" or "Out".
€You will also need to build yourself a DIN-Sync Cable which only transmits
the external clock & ground (none of the other sync messages).
Maybe your wondering what point is for all this.
Imagine your syncing your TR-808 to an external master clock, the DIN-sync
port of your 808 is set to "In", meaning it's using and external clock +
start/stop signal to track exactly what your external clock master is doing,
it is, completley a slave.
Wouldn't it be cool, if say, if the 808 was "listening" to the external
clock, but the pattern/track sequence could independentley be started and
stopped of your External Master Clock (by using the onboard start/stop
button). Very cool idea, huh? Not only would in be a nicer way to
"mute/unmute" your TR-808 (instead of volume fade ect.), but you could
introduce subtle or massive offsets (at what point the sequence starts) by
manually (by hand) determining when the sequence starts.
But hey, what about converting the Footpedal switch to accept a V-Trigger.
Do i really need to go into how fun this could be....... By using an
external trigger (from a drummachine/Midi to trigger/gate convertor) to
start/stop the 808 Track/pattern sequence, very insteresting rhythmic
patterns could be achieved (when mixing it with other drum beats for
instance).
Another benefit to modding the Footpedal jack...... You could literally sync
the Tr-808 of a single trigger input. You would be using the onboard TR-808
clock, beat match the 808 (by ear) as close as you can to your track, and
just use the Trigger input to restart the 808 every 4-bars or so. The subtle
drift of the two clock sources could add a nice feel, you'd just be giving
the TR-808 a kick in the ass every now and again to make it drop back into
sync (the trigger is the ass kicker
.
Well, hope that all clears up the intentions of the mod. A note should be
made that all Roland DIN sync gear could be modified in a like fashion
(202/303/606/707/909). I'm just getting the ball rolling with the 808, I'll
probably write up others with time)
----------------------------------------------------------------------------
Step 1:: Modifying the Footpedal jack to Accept a V-Trig Input.
*This is easier than you would think (and no, a S-Trig does not replace the
need for this mod).
Locate on the Main 808 circuit board Resistors "R3" & "R4" (these should be
right around where the Start/Stop Button is soldered to the board. You need
to cut the trace between these two resistors (where R3 & R4 meet). Once you
have done this, solder a piece of insulated wire between "R3" (the side you
cut the trace on) & "ground". The easist place to find this is at the "-"
(negative) side of Capacitor "C3" (The dot marks the "+" (positive) side).
If you need to, use a continuancy meter to verify that you have correctley
got a connection between "R3" & "ground".
Bam! Your done with this step.
Step 2:: Modifying the TR-808 Start/Stop Button (and the footpedal
start/stop) to be enabled regardless of whether the DIN-Sync has been set to
"In" or "Out".
*Again, this is another easy mod. Soldering a piece of insulated wire
between to points on the circuit board, but pay close attention cause you
don't want to get these points messed up.
Locate on the Main Circuit board Resistors "R35" (1k) & "R26" (100k). They
will be very close to Connector (C7). You need to solder a piece of insulted
wire between these two points.....(Which side of the Resistors?????) The
sides of both resistors you are trying to connect will be the CLOSEST to the
Connector "C7". You might also want to verify you are correct by using a
continuancy meter between these to points (make sure the DIN-Sync is set to
"output" when doing this test). If you have done the modification
correctley, there should be contiuance trace between "R35" & "R26" when the
DIN-Sync port is set to both positions ("Input" & "Output").
Bam! That step is complete.
Step 3:: Build yourself a DIN-Sync cable which only transmits "Clock" &
"Ground".
*Nearly done, this last step enables you to do the fun stuff when syncing
the 808 to an external DIN-sync clock.
You will need;
€two Male 5-Pin DIN-sync jacks (easy enough to find)
€A lengthy bit to 2-conducter Insulated Cable (sheilded)
consult this diagram of the Roland DIN-Sync cable;
http://www.philrees.co.uk/products/sync-if.htm
Solder the shielding wire of you cabling to "Pin 2" of both of your 5-pin
male DIN jacks, you may have to use some heat shrink to insulate the
shielding (just make sure it won't have chance shorting with any of the
other pins).
Solder the remaining wire-conducter (the insulated one) to "Pin 3" of both
of your 5-pin male DIN jacks.
You have now built yourself a dedicated DIN-Sync Cable for the
"Curious-Sync" mod.
If you want the 808 to operate as it originally did, simply use a standard
DIN-Sync24 cable.
----------------------------------------------------------------------------
Ok...all done! Have fun.......standard disclaimers always apply, mod at your
own risk and stuff, make sure you have a printed copy of the schematics
beside ya when doing these circuit alterations, they definetley make the
whole process a lot more logical and smooth.
Seeya
Plutonique9 (plutonique9@symbiocom.com)
your 808 to an external DIN-Sync clock.
This is what it entails;
€ Reconfiguring the Start/Stop footpedal to accept a V-Trigger input
€ Modifying the onboard Start/Stop Button (and the footpedal) to be enabled
regardless of whether the DINsync port has been set to "In" or "Out".
€You will also need to build yourself a DIN-Sync Cable which only transmits
the external clock & ground (none of the other sync messages).
Maybe your wondering what point is for all this.
Imagine your syncing your TR-808 to an external master clock, the DIN-sync
port of your 808 is set to "In", meaning it's using and external clock +
start/stop signal to track exactly what your external clock master is doing,
it is, completley a slave.
Wouldn't it be cool, if say, if the 808 was "listening" to the external
clock, but the pattern/track sequence could independentley be started and
stopped of your External Master Clock (by using the onboard start/stop
button). Very cool idea, huh? Not only would in be a nicer way to
"mute/unmute" your TR-808 (instead of volume fade ect.), but you could
introduce subtle or massive offsets (at what point the sequence starts) by
manually (by hand) determining when the sequence starts.
But hey, what about converting the Footpedal switch to accept a V-Trigger.
Do i really need to go into how fun this could be....... By using an
external trigger (from a drummachine/Midi to trigger/gate convertor) to
start/stop the 808 Track/pattern sequence, very insteresting rhythmic
patterns could be achieved (when mixing it with other drum beats for
instance).
Another benefit to modding the Footpedal jack...... You could literally sync
the Tr-808 of a single trigger input. You would be using the onboard TR-808
clock, beat match the 808 (by ear) as close as you can to your track, and
just use the Trigger input to restart the 808 every 4-bars or so. The subtle
drift of the two clock sources could add a nice feel, you'd just be giving
the TR-808 a kick in the ass every now and again to make it drop back into
sync (the trigger is the ass kicker
.Well, hope that all clears up the intentions of the mod. A note should be
made that all Roland DIN sync gear could be modified in a like fashion
(202/303/606/707/909). I'm just getting the ball rolling with the 808, I'll
probably write up others with time)
----------------------------------------------------------------------------
Step 1:: Modifying the Footpedal jack to Accept a V-Trig Input.
*This is easier than you would think (and no, a S-Trig does not replace the
need for this mod).
Locate on the Main 808 circuit board Resistors "R3" & "R4" (these should be
right around where the Start/Stop Button is soldered to the board. You need
to cut the trace between these two resistors (where R3 & R4 meet). Once you
have done this, solder a piece of insulated wire between "R3" (the side you
cut the trace on) & "ground". The easist place to find this is at the "-"
(negative) side of Capacitor "C3" (The dot marks the "+" (positive) side).
If you need to, use a continuancy meter to verify that you have correctley
got a connection between "R3" & "ground".
Bam! Your done with this step.
Step 2:: Modifying the TR-808 Start/Stop Button (and the footpedal
start/stop) to be enabled regardless of whether the DIN-Sync has been set to
"In" or "Out".
*Again, this is another easy mod. Soldering a piece of insulated wire
between to points on the circuit board, but pay close attention cause you
don't want to get these points messed up.
Locate on the Main Circuit board Resistors "R35" (1k) & "R26" (100k). They
will be very close to Connector (C7). You need to solder a piece of insulted
wire between these two points.....(Which side of the Resistors?????) The
sides of both resistors you are trying to connect will be the CLOSEST to the
Connector "C7". You might also want to verify you are correct by using a
continuancy meter between these to points (make sure the DIN-Sync is set to
"output" when doing this test). If you have done the modification
correctley, there should be contiuance trace between "R35" & "R26" when the
DIN-Sync port is set to both positions ("Input" & "Output").
Bam! That step is complete.
Step 3:: Build yourself a DIN-Sync cable which only transmits "Clock" &
"Ground".
*Nearly done, this last step enables you to do the fun stuff when syncing
the 808 to an external DIN-sync clock.
You will need;
€two Male 5-Pin DIN-sync jacks (easy enough to find)
€A lengthy bit to 2-conducter Insulated Cable (sheilded)
consult this diagram of the Roland DIN-Sync cable;
http://www.philrees.co.uk/products/sync-if.htm
Solder the shielding wire of you cabling to "Pin 2" of both of your 5-pin
male DIN jacks, you may have to use some heat shrink to insulate the
shielding (just make sure it won't have chance shorting with any of the
other pins).
Solder the remaining wire-conducter (the insulated one) to "Pin 3" of both
of your 5-pin male DIN jacks.
You have now built yourself a dedicated DIN-Sync Cable for the
"Curious-Sync" mod.
If you want the 808 to operate as it originally did, simply use a standard
DIN-Sync24 cable.
----------------------------------------------------------------------------
Ok...all done! Have fun.......standard disclaimers always apply, mod at your
own risk and stuff, make sure you have a printed copy of the schematics
beside ya when doing these circuit alterations, they definetley make the
whole process a lot more logical and smooth.
Seeya
Plutonique9 (plutonique9@symbiocom.com)
