[sdiy] TR 606 Din Sync problem

Tom Wiltshire tom at electricdruid.net
Sun Jul 12 15:23:35 CEST 2015

I've seen this same failure on other products - I had a Dr Rhythm drum machine with the same problem. Those PCB mounting DIN MIDI sockets provide quite a bit of leverage when you push a socket in that tends to force the pins down through the board and cracks the tracks or the joints. Adam's right - often you can only see the cracks when you push the DIN socket or flex the PCB.
Having fixed my drum machine a couple of times only to have it fail again, I eventually sorted it out by reinforcing the joints with tinned wire round the pins and along the PCB tracks.


On 12 Jul 2015, at 02:00, Adam Inglis <21pointy at tpg.com.au> wrote:

> Re-solder all the pins where the jack mounts on the board - mine have cracked several times, the cracks are only visible under stress.
> Adam
> On 12/07/2015, at 10:00 AM, Edward Schultheis wrote:
>> Hi all, my 606 used to sync to my XoX with no problems until recently.
>> At first it seemed to short out, but by jiggling the cable is get it working. Now it has stopped completely.
>> The clock appears to work, as well as the reset, but not the Start/ Stop.
>> I figured that it was a short on pin 1.
>> I found a trace was bad, and bridged that, but it is still not working.
>> When I slave the 606 I see the led go on indicating that it is receiving the signal, and it turns off when stopped.
>> When I slave the Xoxbox I also see the same, as well as what appears to be the clock rate.
>> Does anyone know of another reason the start stop has stopped working?
>> Is there a way to test the signal like we can with a midi signal?
>> Thanks all!
>> Edward Schultheis
>> Sent from me!
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