"Trevor Wilson" wrote in message
...
On 25/03/2016 9:48 PM, Mark Zacharias wrote:
How is it a grown man cannot understand the concept of keeping two wires
separate?

Fixed a Yamaha RX-A2010 with a blown channel back in December.

Under warranty.

Big job.

Cautioned him on speaker hook-ups, gave him our hand-out sheet
explaining speaker connections,
which also contains explicit warnings about shorting wires etc.

Nevertheless he brought it back this week with the same channel blown
again.

It was all I could do not to just go off on the guy. He admitted fooling
around with the wires while the unit was powered up, and that the wires
had crossed. Exactly the sort of thing I had "educated" him about.

****ing idiot. Lucky for him Yamaha is covering it again, and we needed
the work anyway.

**** for brains god damn idiot. I knew better that this when I was
sixteen ****ing years old!

I'm reminded of Chevy Chase's rant in Christmas Vacation...


Mark Z.



**I'm suprised that the ****box Yammy can't handle a short. Part of the
test procedure for all the old 1970s Marantz amps, was to throw a short
circuit across the outputs. If it didn't survive, it would not be given
back to the owner (until it did).

--
Trevor Wilson
www.rageaudio.com.au

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Not sure it was purely a direct short, or if it was a one-off. The emitter
resistor showed signs of longer term overheating. He's sure as hell doing
something wrong though. can't rule out a bad speaker either.

The whole thing requires further investigation.

He live a ways our of town from my location so a service call is at the
least inconvenient for me.

At the least I need to have him bring me the speakers and wires for
evaluation.

Mark Z.