Originally Posted by Bacci
My experience and that of several other SR-706 owners (see earlier posts on this thread) suggest the opposite of your statement. Unless you have the precise schematics and flowcharts of the SR-706, I'd rather trust the empirical evidence.
Try playing Wii when the receiver is cold. If it works without signal loss, the problem is overheating. Must have something to do with analog to digital video conversion, as the problem doesn't occur with digital sources in through mode.
Install a fan and the problem is solved. Worked for me.
As the OP stated and I reiterated, the OP has the HDMI set to "Through" mode. Through mode means that the resolution of the signal out is the same as the resolution in with no video upconversion or processing except A to D conversion if going from an analog input (composite, component, S) to the HDMI output.
Page 92 of the 706 owner's manual states:
"Through: Select this to pass video through the AV receiver/AV amplifier at the same resolution and with no conversion (default)."
Additionally, page 6 of the owner's manual states:
"HDMI Video Upscaling (to 1080p Compatible) with Faroudja DCDi Cinema Enhancement"
If the input signal is NOT being upconverted (Through mode), the logical conclusion per the owner's manual is that the Faroudja chip is not involved, except possibly to do the A to D signal conversion which would be a very easy task. IF the Faroudja chip is overheating just doing that, it is a very poor design.
All of the previous threads that I have read that were related to overheating (primarily the "blue-dot" problem) occur when the input signal is being upconverted to a higher resolution output signal. Additionally, many of the other problems dealing with signal input/output problems that I have read deal with Wiis/PS3s/XBOXs. I have not noticed any significant complaints of a similar nature from stand alone DVD/Blu-Ray player owners. I certainly have no problem with my Panasonic BD35 used in HDMI Through mode.
If you have specific evidence that points to the Faroudja chip overheating, I would be interested in reading it, otherwise I stand by my original statement. I have no problem with being proven wrong if that is not the case.