Denon AVR-4308CI Service Manual

Also see for AVR-4308CI: Product Compatibility Chart Capabilites and Compatibilities Comparison chart Owner's manual Owner's manual

Contents

43AVR-4308CI4.2. USB device is not recognizedChecking the settingsAre the USB port settings correct? NO Set the front and rear properly.YESChecking the USB deviceAre you using a USB hub? YES You do not use the USB hub.NOIs the USB device compatible with the set? NO Only mass storage devices in FAT16 or FAT32 formats or MTP-compat-ible devices are supported.YESChecking the set (AVR-4308CI)Is the wire properly connected between CX053 and CY053? NO Connect the wire properly.YESIs a voltage (5V) being supplied between pins 1 and 4 of JK402 (backpanel USB connector) and JK704 on the 1U-3800-5 circuit board (frontpanel USB connector)?NO The IC415 periphery circuitry is defective.YES Rear is not recognizedIs the USB device not recognized for both the front and rear connec-tors? The circuit from IC411 to JK402 is defective.Front is not recognizedYES The circuitry from IC411 to JK705 on the 1U-3800-5 circuit board isdefective.Is the IC411 pin 15 output level "L"? NO The circuitry from IC701 on the 1U-3804-2 circuit board to IC441 onthe 1U-3779 circuit board is defective.YESThe circuit from IC405 to IC411 is defective.NOYESYESNONOYESNOYESNOYESYESNOYESw w w . x i a o y u 1 6 3 . c o mQ Q 3 7 6 3 1 5 1 5 0 992894298T E L 1 3 9 4 2 2 9 6 5 1 3 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com