Electronic repairs anyone ?

[vw1]

Long shot but does anyone repair pcb ?

I have electronic music equipment that needs fixing ?

It's a boss sp303 I have found the fault through the error code on the screen and through the roland site.

But that's as far as I can go.

 

[Kram]

It will be hard for anyone to say without more details as to the task and nature of the repair. Something simple like capacitor or diode replacement.. or something highly skilled like resolding a large IC with many pins or BGA chip...

It's a boss sp303 I have found the fault through the error code on the screen and through the roland site

What is the fault?
Unless its a common known problem, with a known documented repair... error codes are often useless and would require a pcb/component inspection.

Generally electronics power supply component failures are the most common and easiest to resolve.

If you have opened it up, spare some photos or details.

 

[vw1]

Can't see any caps that swollen but that's as much as I know lol.

It does power up but just shows fault code e8

Thank for your time and help.

 

[rcx132]

I remember a friend used to do repairs like this. He used an oscilloscope to try to test components on the board but it didn't always works as the components would often interfere with each other. I've also seen people use infrared cameras to find the faulty parts, again, doesn't always work.

 

[Chippie]

have you had a look here:

SP-FORUMS • View topic - sp-303 error number 8

 

[vw1]

have you had a look here:

SP-FORUMS • View topic - sp-303 error number 8

Yes I did find this but all that guff guff is over my head lol. In the passed with tv etc I have replaced swollen caps with success.
This one is out of my comfort zone.

 

[Kram]

It's a boss sp303 I have found the fault through the error code on the screen and through the roland site

Can you share the details as it sounded like you had discovered or found information on the cause? I dont want to spend hours searching forums for a device I dont have.

A very brief look suggests a communication fault between the IC's. The first thing I'd do is grab the datasheets for them, and check they recieve the correct supply voltages when its powered up - that would throw anything off if wrong and imply a power supply issue.

If the correct power voltages, and no visible defects, I'd suggest resoldering the relevant IC's, its likely uneconomic to repair.

 

[vw1]

Can you share the details as it sounded like you had discovered or found information on the cause? I dont want to spend hours searching forums for a device I dont have.

A very brief look suggests a communication fault between the IC's. The first thing I'd do is grab the datasheets for them, and check they recieve the correct supply voltages when its powered up - that would throw anything off if wrong and imply a power supply issue.

If the correct power voltages, and no visible defects, I'd suggest resoldering the relevant IC's, its likely uneconomic to repair.

E8 error on the data sheet