Sony DA5000ES surround receiver help please
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From: Tim Schwartz on 4 Jan 2010 08:09 Happy New Year everyone, A friend brought over a SONY DA5000ES surround receiver where the owner had shorted speaker leads and blown a channel. He (my friend, not the owner)had replaced the 4 output devices in the channel (Q1671,1681, and 2 others that I can't see with the unit assembled.) sourcing the output transistors from Sony. The amp now powers up with a displayed message of "Check Code 11" The topology of the receiver is totally unknown to me, and of course he does not have a schematic diagram or service manual. Any ideas? Many thanks, Tim Schwartz Bristol Electronics
From: David Farber on 4 Jan 2010 15:52 Tim Schwartz wrote: > Happy New Year everyone, > > A friend brought over a SONY DA5000ES surround receiver where the > owner had shorted speaker leads and blown a channel. He (my friend, > not the owner)had replaced the 4 output devices in the channel > (Q1671,1681, and 2 others that I can't see with the unit assembled.) > sourcing the output transistors from Sony. > > The amp now powers up with a displayed message of "Check Code 11" The > topology of the receiver is totally unknown to me, and of course he > does not have a schematic diagram or service manual. > > Any ideas? > > Many thanks, > Tim Schwartz > Bristol Electronics Hi Tim, I found this on a Google search: http://www.agoraquest.com/viewtopic.php?topic=31378&forum=51 "Here is the description of 11/protector in the Operating Instructions (p60): 11/PROTECTOR Irregular current is output from the speakers. Turn off the receiver, check the speaker connection and turn on the power again." I would not power up that unit or most any unit with new parts unless it was in series with a current limiting light bulb. Happy New Year to you too. -- David Farber David Farber's Service Center L.A., CA
From: Mark Zacharias on 5 Jan 2010 05:43
"Tim Schwartz" <tim(a)bristolnj.com> wrote in message news:hhspa1$k54$1(a)news.eternal-september.org... > Happy New Year everyone, > > A friend brought over a SONY DA5000ES surround receiver where the owner > had shorted speaker leads and blown a channel. He (my friend, not the > owner)had replaced the 4 output devices in the channel (Q1671,1681, and 2 > others that I can't see with the unit assembled.) sourcing the output > transistors from Sony. > > The amp now powers up with a displayed message of "Check Code 11" The > topology of the receiver is totally unknown to me, and of course he does > not have a schematic diagram or service manual. > > Any ideas? > > Many thanks, > Tim Schwartz > Bristol Electronics These digital amps can be trouble. Even with the outputs replaced, a digital driver IC may be bad also. Sometimes the circuit boards are damaged by the driver chip flaming out. Then there are potential issues your friend could have caused in there. I can't normally supply Sony manuals, but if you haven't one, email me direct and I'll see if I can help. You could also check Sony's flat rate at the Laredo Texas service center. Sometimes that is more economical, although the cost of the outputs already replaced certainly messes up THAT equation... Mark Z. |