Denon AVR-S730H Service Manual

Also see for AVR-S730H: Troubleshooting guide Owner's manual Owner's manual Quick start guide

Contents

Denon AVR-S730H Service Manual Manual pdf 71 page image

5. Network / Bluetooth / USB5.1. Cannot connect to the networkCan the D3.3V output voltage(3.3V) to [IC741 : DC-DC Conv.]be confirmed?Can the LEGO5V output voltage(5V) to [Q7402 : FET-SW] be con-firmed?Can the voltage (5V) be confirmed between[CN741 : 1pin]?Is D5V_POWER [IC751 : 122pinuCOM] "Hi" ?Is NET5V_POWER [IC751 : 40pinuCOM] "Hi" ?The circuit of D5V_POWER be-tween [IC751-IC741] are faulty.The circuit of NET5V_POWERbetween [IC751-Q7402] arefaulty.The circuit around [IC741 : DC-DC.Conv.] is faulty.The circuit around [Q7402 :FET-SW] is faulty.TO "6. SMPS"Can the NET3.3V output voltage(3.3V) to [Q7404 : FET-SW] beconfirmed?Is NET3V3_POWER [IC751 :111pin uCOM] "Hi" ?The circuit of NET3V3_POWERbetween [IC751-Q7404] arefaulty.The circuit around [Q7404 :FET-SW] is faulty.YESYESYESYESYESNO NONONONONONOYESYESYESNONONONOYESYESYESCheck the settingAre the network settings of this unit correct?Are peripheral devices such as the router and hubconnected to this unit correctly?Are the router settings correct?Set the IP address, etc. correctly.When the static IP address is used, check that noother devices have the same IP address and thatthe subnet mask settings are correct.Connect the peripheral devices correctly.Check the instruction manual of the router andconfigure the settings correctly.Check that there are no connection restrictions byMAC addresses, etc.Is the LAN cable correctly inserted? Insert the LAN cable correctly and then turn onthe power again.Check the connection environmentChecking the unitThe circuit of Network Module is faulty.Are the versions of the HEOS Version displayed inVersion Check Mode? The Network Module software is faulty.YESNO71Caution in servicingElectricalMechanicalRepair InformationUpdating