All other components e.g. Apple TV device, Panamax voltage regulator and surge protector, DVR, Direct TV Modem, Wifi, all working normally
Check SMPS of Denon AVR X3300W located at AC in.
The voltage 5.26V may be
down. If current protect ,
check ALL components of
power amp OR replace them ALL.
SOURCE: hi denon to cable box to samsung lcd
Unless you are having res. issues you can use component / optical / coaxial cables to connect all your devices to your denon and from your denon to your tv using component cables also
SOURCE: Denon AVR-688 Dolby Digital issues
IT IS ALWAYS BEST TO CONNECT ANALOG AUDIO IN ADDITION TO THE OPTICAL, COAXIAL OR HDMI AUDIO CONNECTION. IF USING OPTICAL OR COAXIAL CONNECTIONS BE SURE TO CONFIGURE IT IN THE RECEIVERS DIGITAL ASSIGNMENT AREA IN SETUP.
ALSO, ON THE FRONT OF THE RECEIVER IS AN INPUT MODE BUTTON, PRESS THIS BUTTON UNTIL AUTO IS DISPLAYED
SOURCE: I have a Denon AVR-688
Try to reset the unit: hold "speaker A" and "Speaker B" buttons and power on the unit. Display will be flashing, release the buttons after 3 seconds. If the problem still there, most likely you have bad digital signal processing (DSP) board - send the unit to repair facility.
SOURCE: power surge hit my surge protector with my 'sony tv hooked to it.
Well, the power supply may be still damaged by the surge, what may happen is that when first surge happens the surge protector protect your TV by sacrifing itself but then the second surge comes along, since the protector already blown up then the surge will just come right through to the TV on the second surge. That is bad problem for the surge protector that sacrify itself but can only do it for ONE time.
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