On my Onkyo HT-R667, I removed the 5 100uF 4v capacitors according to Ed's video on Youtube. http://www.youtube.com/watch?v=gj0x5S9ez5U
Before, I had to wait five minutes for it to warm up before it displayed any HDMI device.
After replacing the five capacitors with 100uF 35v ones from Radioshack, everything worked flawlessly for about 24 hours.
Then, the OSD setup screen was no longer working so I removed the HDMI board and notice one pin had come off so I resoldered it. While putting the HDMI board back in, the white, thin ribbon was slightly scratched along its top pins but I'm not sure if it's the cause of my current problem.
Unlike some people on the forums, the video, audio, and OSD screens all work. The only problem is that when in Windows 7, the 7.1 speakers are really broken. Front left plays on the rear, center seems to play on two of the back, and front right also plays on the back. Going into the OSD to Speaker Setup -> Level Calibration, it's exactly as it should be.
Selecting "Properties" on my audio device (NVIDIA HDMI Out), going to Advance and changing the default format to 24bit and other Hz seems to affect and occasionally fix it temporarily, but then it comes right back to being backwards and broken.
I could make a video showing the problem, but I really don't think it's Windows. I'm not sure if it's the capacitors or the ribbon or what. I rechecked the capacitors and soldering and it's fine.
I have an Xbox 360 and a PS3 connected to the other HDMI ports, but there's no 5.1 or 7.1 sound tests I could use on them to see if it's the computer, the HDMI port, or the HDMI card in the Onkyo.
It also seems that if in Windows 7 you select 24-bit and 192,000 Hz, you can no longer use All Channel Stereo for Stereo source media files. It also causes the receiver to click annoyingly when playing media, so I may just leave it on 16-bit at 48000 Hz. But that's another topic.
I just switched my PC from HDMI1 to HDMI3 and ran the 7.1 surround speaker test and it worked fine. I'm not sure if it's going to last, though, because since installing the capacitors, I've noticed it becoming extremely hot - too hot to touch, really, just above the HDMI card on the top right.
If it's the HDMI port that's screwed up, would you recommend I replace the remaining capacitors as some others have done? Has anyone else had issues in Windows, HDMI1 (DVD), or a device's audio or video AFTER your DIY fix?
I'm tossing and turning in bed knowing that my receiver isn't working perfectly. Any help would be appreciated, and thanks to everyone who posted their results and the tutorials for this! Many say it's working perfectly but try checking 5.1 and 7.1 surround outputs of any of your HDMI devices, not just in the OSD, to make sure it's really working 100%!
I just confirmed that HDMI1 and HDMI2's audio is bungled. Changing only the HDMI cable to a different port, I was able to use the speaker setup in Windows to determine that the L, C, and R are played out of the wrong speakers regardless of what setting of music it's on (TV Logic, Neo6, All Chan Stereo). HDMI3 and HDMI4 worked fine.
Is the board blown? Replace the remaining 4 or 5 100uF capacitors? I didn't notice anyone else having this exact issue in any previous post.
Rolling back my NVIDIA HDMI drivers to 126.96.36.199 dated 8/21/2009 seemed to fix everything. Audio works correctly in HDMI1 including DTS, Dolby Digital etc and the sound is coming out of the channels.
I'm going to assume I'm done repairing my HT-R667 thanks to everyone here and on the highdef forums.Update 5/20/11:
I take it back, It isn't fixed. I still need help, but first please read my updated post with screenshots and video here: http://www.avsforum.com/avs-vb/showt...4#post20458134