Front speakers won't work simultaneously with the rest of my 5.1 system

SOURCE: subwoofer

Hi,

Hmmm, I think your Yamaha RXV640 does not have a sub woofer amp, it has a line level low pass output that needs to go to a separate/dedicated sub amp before going to a subwoofer.

Good luck and kind regards.

SOURCE: No sound from surround speakers or rear speaker

is there a switch in the back for surround on/off

SOURCE: Front speakers no sound!

Most likely you have pressed the speaker AB switch, try pressing it again and see if it works.

SOURCE: Center and surround speakers work, but front right and front left speakers do not put out any sound

I had the same problem. Set the reciever on 6 channel stereo. On this setting, you should be getting the same sound out of each speaker. Isolate which speakers aren't getting sound. Now, on your speaker switch (the A/B button), select A. If that doesn't fix it, select B. If that doesn't fix it, try A and B (if you can on your reciever).

Now, when you switch back to pro-logic, make sure your a/b channel switch is in the position that worked in 6 channel stereo. Yamaha recievers have a memory, and when you switch various modes, it makes auto adjustments based on what you had set in the past.

Hope this helps

SOURCE: Receiver is shutting down.....

First, I have to compliment you on a thorough and comprehensive problem description and an apparent sense of how to troubleshoot. We're halfway there already.

Your Blu-Ray / PS 3 statement is intriguing but with the E-1 code that absolves it as the problem.

You have two opposing symptoms: the live failure says you have a short while the test mode implies an open circuit. We have to isolate everything and see if it moves to another channel.

Let's run with the "E-1: NO FRONT SP" error. I think it's trying to tell us we have an intermittent sensation of an open wire in one of the Front speaker channels. * Unfortunately, the manual doesn't break out Left and Right (but I'm sure the receiver knows) to help us isolate. You say it doesn't get past the Left test. I need you to decide by listening to the Left Front Speaker setup routine if it's really working or not, and if it seems to be working, maybe the receiver is really failing at the point it advances to the Right Speaker, assuming Right follows left in the sequence.

Verify for me: You swapped the two front speakers Left to Right and replaced both speaker wires with NEW wires and had no improvement.

I'm wary of a failcode that doesn't identify which of a pair is failing, so I 'd like to see ALL NEW speaker hardware and connections in place to avoid the pitfall of swapping the L & R with each other and having one of them be the problem without changing the symptom.

We can accomplish this easily: Try temporarily running the rear speakers as the Fronts just to see if the test can pass. If so, test the Fronts as if they're the Rears speakers. You should be able to just swing the receiver-ends of the cables among the speaker posts.

Something should change or else the problem is internal to the receiver. Good luck.