Onkyo amplifier repair TX-sr806 no HDMI output4Tsservice manual download site
With the popularity of HD boom, 1080P in recent years has become a basic standard of home theater equipment, AV receiver also has to meet this requirement, so a lot of times HD with HDMI interface power amplifier on the market, Onkyo amplifier common models of TX-sr608,TX-sr806,TX-NR809 and so on. Since HDMI interface does not support hot plug, so accustomed to electric wiring amplifier HDMI interface users often encounter damage is more common, here are just a case of Onkyo 806 service examples.4Tsservice manual download site
Symptoms: in addition to the HDMI output, others are normal.4Tsservice manual download site
Since HDMI application in PA, there will be a headache for everybody issues cannot hot plug, which is an accepted things but hotplug chip damage can occur in a number of how many, which means plug failure rate is very high, and have nothing to reference, so the best way is not to hot plug. In many lines only HDMI interface to remember it really hard. So, HDMI interface damage became one of the common trouble in the recent one or two years.4Tsservice manual download site
The decoder Board set up a set of HDMI output, six input, uses five groups, empty set. Enter it to power SIL9185ACTU, each chip three input and output IC is SIL9134CTU. Decoder for SIL9135ACTU.4Tsservice manual download site
Repairs should be noted is that these chips are all the digital signal and test if it is on the HDMI interface is no waveform analog oscilloscope, and HDMI interface in a no-load condition is no input/output, because its internal signal detection cable, when the device is connected on both ends to complete feedback signal is required to output.4Tsservice manual download site
Try replacing the chip SIL9134CTU and try the PC to HDMI signal, and troubleshooting.4Tsservice manual download site