This is my first post ever to this venerable forum, from which I've learned so much over the years. The help of 4308 guru(s) would be massively appreciated!
I am the owner of like-new AVR-4306. It was taken off the job for which it was purchased a couple of weeks after installation because audio output was malfunctioning....... and put in storage for five or six years . . . . until last week. Curious if anyone thinks the following could be corrupted FIRMWARE issues, or if they point to and obvious type of hardware malfunction that would be worth repairing out-of-warranty. I don't have access to a Windows XP machine, so updating firmware (via two-step to main ver. 01.00, sub ver. 00.50, DSP ver. 00.04) is something I don't want to get after unless someone thinks its worth the effort! Also don't want to pay to send it in only to find out it is going to be ridiculously expensive to fix.
OK folks, here goes: So when unit is playing in 2-channel mode (either pure direct or direct/stereo) unit sounds perfect, otherwise:
1) INPUT ASSIGNMENT ISSUES: Analog audio inputs only work when the digital inputs are set to "none" for a given device. (i.e. "CD" inputs are not recognized by the machine unless the default digital input for the CD ("Coax-1") is set "None" in the audio-input menu. Once digital is disabled, analog input works.
3) SOURCE SELECTION ISSUES: When you try to switch between sources (say CD to Tuner) the amp does not "click" to the new input . . . . . the only way to get it to work is to power-down (from the small main button) and then the amp recognizes the input and works fine (on either "Pure Direct" or "Direct/Stereo" . . . though you can not switch between them without powering down). NOTE: every once in a while . . . . . for just a small window of time . . . . source selection works properly. (This intermittence makes me think bad connection on some board or other).
2) Multi-channel audio modes, including DSP, do not work . . . . . and then may do for a short time . . . . and no clearly identifiable reason. When I first networked the amp and opened it up from the browser everything worked for five minutes (including multi-chanel output) ..... then nothing. (At least the amps for those channels work).
I guess I don't know enough about how these amps work to understand if input-assignment, input selection, multi-channel output and audio processing modes all point to a single recognizable type of failure (i.e. are the same and related) or suggest a more systematic issue (like corrupted firmware). I also don't know if it is a clear sign of something not worth fixing out of warrantee. Its just that this amp is truly brand-new in condition which seems a waste.
SO ...... any help on this issue would be hugely appreciated. Just don't want to spend money to send it in for service if it is something I could fix myself (firmware) or is something so expensive that there is no point! Also, I have not tested the video-switching b/c I don't have any display at this location. But when we pulled the unit off the job I don't remember any video problems (besides the HDMI issues with cable and sat boxes which we got around using component connections.
Thanks for you help with this. If I could make this work it would be a serious enhancement for me.