Sansamp repair

[Marky L]

Hi

I have a Sansamp BDDI and one of the selector buttons (the first one) won't engage any more. I did contact Tech 21 to see if there was an official repair centre in the UK, but no. Therefore.. does anyone know a good electronic engineer/repairer more versed in music equipment that could fix it? (I'm in the Bournemouth area if there is anyone local.)

 

Thanks

Edited yesterday at 10:57 by Marky L

[Phil Starr]

I opened mine up and gave the inside of the switches a good squirt of Servisol (switch cleaner) no further problems to date.

 

I run mine on batteries, I find that if the batteries are getting close to dead the switches don't work as they should. Remember these aren't actual swiches, which are in the electronics, they just send a signal that you want to change something and if the batteries need changing then you don't have enough power for the programmable to work

 

Paging @Chienmortbb

 

 

Edited 5 hours ago by Phil Starr

[Marky L]

39 minutes ago, Phil Starr said:

I opened mine up and gave the inside of the switches a good squirt of Servisol (switch cleaner) no further problems to date.

 

I run mine on batteries, I find that if the batteries are getting close to dead the switches don't work as they should. Remember these aren't actual swiches, which are in the electronics, they just send a signal that you want to change something and if the batteries need changing then you don't have enough power for the programmable to work

 

Paging @Chienmortbb

 

 

Thanks

I am a klutz when it comes to electronics and was a little concerned that I'd end up making things worse. I have Servisol, I have screwdrivers.. maybe I'll have another look. 😬🤞

 

I run mine on mains BTW.

Edited 4 hours ago by Marky L

[Chienmortbb]

Is it the Programmable BDDI?

 

I will admit to being ignorantly of the circuitry involved in the Sansamp BDDI, I will contact Tech 21 for more info.

 

Some questions, when working normally,  does the switch normally give a definite click when pushed? If not then they use some form or electronic switching. To stay true to their analogue circuitry, they are probably used IC based analogue switches. In the early days, these were frowned upon by the HiFi fraternity but they do allow simpler all along designs and the use of momentary switches rather than mechanically latched ones. This should improve reliability.

 

I am based in the Conurbation (Poole), so happy to have a look at it.

Edited 3 hours ago by Chienmortbb

[Marky L]

12 minutes ago, Chienmortbb said:

I will admit to being ignorantly of the circuitry involved in the Sansamp BDDI, I will contact Tech 21 for more info.

 

Some questions, when working normally,  does the switch normally give a definite click when pushed? If not then they use some form or electronic switching. To stay true to their analogue circuitry, they are probably used IC based analogue switches. In the early days, these were frowned upon by the HiFi fraternity but they do allow simpler all along designs and the use of momentary switches rather than mechanically latched ones. This should improve reliability.

 

I am based in the Conurbation (Poole), so happy to have a look at it.

As I recall, on turning it on, switch 1 is active. It disengages if pushed but then won’t engage (I need to double check). I’m sure it does click but will confirm when I get home later. 

 

i had a quick look before going to work this morning and noticed the spring on S1 is too short and not in contact with the pad. S3 is in contact. Pics attached. 
 

I may well take you up on the offer 😃👍 Thanks. 
 

Edited 2 hours ago by Marky L

[Phil Starr]

8 minutes ago, Chienmortbb said:

Some questions, when working normally,  does the switch normally give a definite click when pushed? If not then they use some form or electronic switching. To stay true to their analogue circuitry, they are probably used IC based analogue switches.

Hi John, thanks for offering to help out, they are non latching momentary switches allowing some basic programming. A double tap saves the settings