Home Theater Questions? Ask a Technician for Answers ASAP
Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
Can you tell me exactly what you sere on the yamaha display screen currently?
Right above the input mode indicator (where it would say DVD, or TV, etc),
do you see Speaker A, Speaker B, or nothing?
Okay, press the SPEAKERS button once, so it shows SP B
Does that bring sound back?
Are you certain he didn't touch any of the wires on the back of the receiver?
Okay, because a loose/disconnected wire is really the only other explanation.
If that checks out, then we'd next move on to a system reset:Power the amp off
press and hold the TONE CONTROL button on front, while powering it back on
Use the program <> buttons to highlight INIT
Press the STRAIGHT button to set to INIT RESET
Press power once more to save the setting.Turn back on, and test for sound (make sure you are still set to SP A)
Choose preset, it is the same as reset, it means resetting to the preset factory defaults
Try it on the tuner (fm radio) mode
Can you plug in a pair of headphones to the jack on the front by the power button, and see if you get anything through them?
Well to be useful from a diagnostic perspective, you'd need to use the proper size headphone plug/adapter.
At this point, assuming you did the reset correctly, there are only 2 possibilities left: Either there is an internal hardware failure, or some of the cords on back were disconnected or moved.
You can try the reset process again just to be safe, beyond that you'd need to disconnect and systematically reconnect all the speaker wires carefully again to be sure they are in the right place.