Denon DNP-720AE Service Manual
Also see for DNP-720AE: SpecificationOwner's manualOwner's manualOwner's manualNetwork Setup Guide
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Contents
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223.2. Optical out3.3. USBCheck the Power Supply Voltages for Optical.MAIN B'D• +3.3V_D1, [IC110] : 5pinCheck the Power Supply Voltages for USB.USB B'D• VBUS, [JACK400] : 1pinCheck the audio serial data from Optical.MAIN B'D• OPTOUT, [JACK101] : 3pinCheck the S/PDIF.MAIN B'D• [IC112] : 5pinCheck the voltage of each part.MAIN B'D1. [IC106] : 1, 2pinSMPS B'D2. [J1] : 7pinCheck the voltage of each part.MAIN B'D1. [IC107] : 1pin2. [Q107] : 2pin (base) ("H" : OK)SMPS B'D3. [J1] : 10pinCheck the waveform of each part.MAIN B'D1. [IC110] : 2pin2. [IC112] : 1pinCheck the S/PDIF.MAIN B'D• [U100] : 32pinNONONONOYESYESCheck the communication signal for USB .MAIN B'D• USB+, [U100] : 38pin• USB-, [U100] : 40pinAre you using a USB hub?Check the waveform of each part.USB B'D1. [JACK400] : 3pin2. [JACK400] : 2pinDon't use the USB hub.NOYESYESNOYESYESACheck the audio serial data from DIR.MAIN B'D• CX870_SPDIF, [IC112] : 5pinIs the USB device compatible with the set?Check the waveform of each part.MAIN B'D1. [U100] : 32pinOnly mass storage devices in FAT16 or FAT32 format orMTPcompatible devices and iPod (Remove some models) aresupported.NONOYES |
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