Hi, i have a problem with this yamaha amps model DSP-A1000. I need the schematic or circuit diagram. where can i find one?

Contact Yamaha directly. Service Centers are probably limited. Don't take it to just anyone. I can fix it, but I'm in California, USA.

Your power suply is defective and needs repair.
Or the power amp is shorted will blow inside fuse power line
distribution.

If you run through the setup and certify it knows about the center channel first, then test it with tiones, then maybe swap the center speaker with another one you might come to an answer.

Go to Yamaha's web site and download the user manual. It's free!

A common problem on these amps ie no sound is due to dirty switches and tone contols,amp face needs taking off and contact cleaner needs spraying into all controls...

if you wanted to use your receiver as your controller and source then try to find out the receivber has got a bridge (jumper) between the pre-amp stage and the power amp stage. if your receiver does not have that, then you can just connect your receiver tape record out to one of your DSP inputs. subwoofers, the DSP has got a sub woofer out connector. you can use that (RCA type) to your sub woofers. put in series because DSP has got only one output for sub. or, you can connect your subs directly to the mains speakers, parallel connections. maybe one sub to your left and the other to your right channel.

i have problem with amp yamaha dsp-a1000 the led the volume it like blinks everytime is good the transistor the output is good, i dont no whats happening can u help me please

manualsparadise.com has one - $19.50 gets you a download link for a zip file with the service manual.

Dear Zforce, The Yamaha DSP A1000 has three different options of on-screen display. Try using the On-screen button on the remote control in order to remove the disturbing display. If this fails or if your remote control malfunctions then you should contact Yamaha for further assistance.