Altavista is no more...for a while now. Mike got sick as I understand it. He was fielding email for a time afterward. I don’t know how he faired with the illness. He used to provide service manuals and the like for a fee...they were NOT cheap.
I have an SA12 that has sat on a shelf for several years due to a shorted/blown output stage. I actually found some of the unobtainable matched transistors that a fellow member pulled from a good channel of an SA20 that had suffered the same fate. Unfortunately, I still haven’t fixed it.
There is a member in here called anatech who is very knowledgeable of Counterpoint gear and offers repair and upgrades. You might try him.
I have an SA12 that has sat on a shelf for several years due to a shorted/blown output stage. I actually found some of the unobtainable matched transistors that a fellow member pulled from a good channel of an SA20 that had suffered the same fate. Unfortunately, I still haven’t fixed it.
There is a member in here called anatech who is very knowledgeable of Counterpoint gear and offers repair and upgrades. You might try him.
Thanks for the responses. I'll try and contact Anatech.
I have been probing around a bit inside. Interesting that one of the five relays (the muting relay on the outputs) is a different brand than the others, but, it's supplied by the same voltage as the others. Wonder if it was replaced at some point by a cheaper relay. The specs on it are slightly different, and, I looked it up, and, it is a cheaper part. I don't have a parts list, so, I can't be sure if it's different by design, or, a replacement part. All the caps, based on appearance, seem to be ok.
I'm going to continue to troubleshoot this thing. Any input would be appreciated.
I have been probing around a bit inside. Interesting that one of the five relays (the muting relay on the outputs) is a different brand than the others, but, it's supplied by the same voltage as the others. Wonder if it was replaced at some point by a cheaper relay. The specs on it are slightly different, and, I looked it up, and, it is a cheaper part. I don't have a parts list, so, I can't be sure if it's different by design, or, a replacement part. All the caps, based on appearance, seem to be ok.
I'm going to continue to troubleshoot this thing. Any input would be appreciated.
Good evening Sharlan,
maybe i can be of assistance ?
I'm the lucky owner of a Counterpoint HC818e. This is a multiroom preamp but based on the Solid 8.
My HC818e officially does not exist. The "e" stands for "export" and those units had encapsulated gainstages incorporated. My unit has completely open/naked boards (completely stuffed with goodies incl the opamps) and spare empty gainboard -PCB's for further experiments ? And…...a service manual of all HC818 things to know.
And in that manual are, because of its roots, also lots of Solid 8 knowledge.
I took pictures of those pages.
Hopefully this will help.
Sorry; a list of material was not included.
Please not the serial number of your Solid 8. (see my copied pages) as it wil hint if you're looking at Revision A or Revision C.
My unit is playing perfectly. I only swapped out a set of cinch connectors as they are flimsy by nature.
Regards,
Reinout
maybe i can be of assistance ?
I'm the lucky owner of a Counterpoint HC818e. This is a multiroom preamp but based on the Solid 8.
My HC818e officially does not exist. The "e" stands for "export" and those units had encapsulated gainstages incorporated. My unit has completely open/naked boards (completely stuffed with goodies incl the opamps) and spare empty gainboard -PCB's for further experiments ? And…...a service manual of all HC818 things to know.
And in that manual are, because of its roots, also lots of Solid 8 knowledge.
I took pictures of those pages.
Hopefully this will help.
Sorry; a list of material was not included.
Please not the serial number of your Solid 8. (see my copied pages) as it wil hint if you're looking at Revision A or Revision C.
My unit is playing perfectly. I only swapped out a set of cinch connectors as they are flimsy by nature.
Regards,
Reinout
Attachments
second set of copies.
Regards,
Reinout
(i made 17 pictures....so if you got those you got all the Solid 8 knowledge i have)
Regards,
Reinout
(i made 17 pictures....so if you got those you got all the Solid 8 knowledge i have)
Attachments
I changed three caps: one in the power section that drives the relays and two in the power section for the audio. But, I still get the random drop-outs. I monitored the voltage in the relay circuit over time, and, when the relays drop out, the voltage drops to zero for that circuit, usually for less than a second, but, sometimes almost five seconds.
I'm going to test the transformer to make sure it's operating properly. Next will be the bridge rectifier and voltage regulator in the relay power circuit. Seems odd behavior for a transformer, but, then, I'm not an electronics expert. At least the audio circuit seems good. The issues seem isolated to the relay circuit.
I'm going to test the transformer to make sure it's operating properly. Next will be the bridge rectifier and voltage regulator in the relay power circuit. Seems odd behavior for a transformer, but, then, I'm not an electronics expert. At least the audio circuit seems good. The issues seem isolated to the relay circuit.