New Marantz 7C problems

Dear Accphoto,

Do I have the wires and everything connected right? Please help. Many thanks. I don't need to connect the 9 pin of the 12AX7, right?

AND most importantly, how do I Ground (yellow green wire) the output section? Should I change the power connector to a FIVE pins one instead of the current Four pins (310 V AC + 13 V AC now)?


CAT

Dear Accphoto,

Sorry to bother you on Sunday.

I connected the power last night for a test (not yet got your advice by that time). TERRIBLE is the word!

The "DEEEEEE" noise is so loud that it is unbearable. It is not a small DEEE noise but it is really huge ... almost to the normal hearing level.

What could have gone wrong.

CAT

I connected the -12.6V to ground. And I think this PCB needs separate ground for each channel. I used two screws to connect the ground to the chasis.

CAT