Hi,
I have a Sony STR-DB940. There is no output at all. I have re-soldered the relays as they were clicking and it worked fine for about 2 weeks. I have the service manual and would like to know how to test and fault find. I would also like to know where I can obtain spare parts (components) for this amp in the UK.
I have a similar problem one channel is intermittent and my sub channel has stopped working. i'm going to take mine to "Richer sounds" for a service, they charge a initial £40 to check and repair soldering and extra for any parts needed
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix audio systems.