Problem with Yam RX-V630RDS

S

sawd

Guest
Ever since I bought my 630 there's been a "thump" from the sub-woofer when I change anything on the amp, also a small amount of sub-woofer hum which stops if it's disconnected from the amp. I should have taken it back to the shop but never got around to it. Now I've started using the amp for Sky HD it's a real pain so I need to fix it.
Is this a common problem?
Where can I get schematics for the 630?

Dave
 

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