Yamaha DTXpress/DTXplorer/DTXtreme

Hi OGD,

Hmmm, interesting.  Thanks for the info.

It should be very straightforward to solder together a 'y' cable 
(with series resistor in the ring 2 pathway) to use a Roland 
CY-12R/C or CY-15R (3)-zone pad in one of  the newer Yamaha 
modules.

Maybe not important to you guys (who would just buy the 
PCY150), but nice for those of us who have Roland guys who 
may want to convert pads to be compatible with the DTXtreme IIS 
module (depending on what else happens at NAMM)....

Chris

--- In DTXpress@yahoogroups.com, "oldguydrummer" 
<rdamon@m...> wrote:
> --- In DTXpress@yahoogroups.com, "moosetication" 
> <moosetication@y...> wrote:
> > OGD, anything obvious from the circuitry when you 
disassembled 
> yours?
> > 
> Stewart/Chris,
> 
> The tip/sleeve are run separately through two resistors R1 & 
R2 to 
> the connector CN1 that has the two leads that goes to the 
piezo on 
> the metal plate on the pad.
> 
> The ring/sleeve are run separately from the piezo circuitry. The 
> ring circuit is split into to pathways, one circuit is run directly 
> to the rim 1 FSR and the second circuit is run through a 
resistor to 
> the rim 2 FSR.
> 
> Thus a large current passed through the ring/sleeve circuit is 
> interpeted as rim 1 triggering and a small current passed 
through 
> the ring/sleeve is interpeted as rim 2 triggering. 
> 
> There is no connection between the circuitry of the piezo and 
the 
> rim switches.
> 
> The TP-65 has the same PCB as the TP-65S, except the single 
> resistor  R3 and Connnector CN2 are not present.
> 
> OGD