Please has anyone got firmware version 2.04 for the Yamaha rx-v667?

SOURCE: Yamaha RX-V420 No power

If the standby voltage exists, the next step is to see whether or not the clock is working. Find the main micro chip. There should be a 3 legged crystal close by. You should see this oscillate (use a scope). No oscillation = no micro control = no turn on. It is possible that the micro is bad or the crysal is bad. Also, check to be sure that the output transistors are not shorted. It is also possible that these are preventing the system from turning on.
Dan

SOURCE: Yamaha rx-797 w/Yamaha ge-60 eq utilizing prein/main out ..and ad

It sounds like you want to use the external amp rather than the internal one. If that is the case, just connect the output of the EQ to the input of the external amp. All you are doing is inserting the EQ between the amp stages now. Using the mx-1 rather than the internal amp is no different.

Dan

SOURCE: Yamaha RX-V2700 no sound from any speaker outputs

Make sure that you have the correct input signal selected.
Also, check if the sound is not muted.
If you have a multi-room speaker switch, make sure it is set correctly to main speakers.

SOURCE: I want my Comcast remote & Yamaha RX-661 to communicate??

30176 or 31176

I am guessing at what remote you are using, so the code may not work. If that is the case, go to the following link and pick your remote from the picture list.

http://www.comcast.com/corporate/customers/customer_support/remotes.html

SOURCE: yamaha rx-v663 is there a firmware update to get hdmi 1.4a support ?

Unfortunatly there is not any firmware to upgrade your unit to a higher HDMI format. There is a firmware though that corrects the following symptoms.

1. In case of playback of some DTS-HD Master Audio stream, pop noise may be generated.
2. Test tone may not be output under specific YPAO condition.
3. When test tone is output from presence channel, surround R channel is simultaneously output when speaker settings are PRESENCE SP "EXIST" and SWFR "NONE".
4. Multi channel input setting will be reset after power off the unit, in case of setting "INPUT CH" to "8CH" and "FRONT" to "VCR" or "V-AUX".