How to reset Marantz nr1602 - Marantz Audio Players & Recorders

Hi Neville.
go to this link and its the manual this might help you out.
Marantz SR6007 Owner Manual Troubleshooting
Or this link might help you out.
How to reset Marantz sr6007 to factory reset Google Search

Reset to factory and make sure you have a good network wifi signal before starting a firmware upgrade. The reset is listed on the last page of the troubleshooting section of the manual. (Surround + Clear for 3 Seconds on my SR6004)

Hope this helps: How to reset the SR6006
Microprocessor reset (p. 150 Owner's manual) - Press and hold the Zone Select/Display buttons while powering on the AVR ......release 4-5 seconds later

Network reset - Press and hold the M-Dax/Display buttons (resets network card and does a microprocessor reset)

If you need further help, reach me via phone at https://www.6ya.com/expert/timothy_c6f309c0f75b6f43

The manual doesn't show a reset switch. So just unplug it for a while (2 hours) and then plug it back in and try it again.
http://us.marantz.com/us/Support/Pages/Manuals.aspx

Can you please repost this download link? I have corrupt firmware on a marantz 1602.
Thanks!

First thing to do is replace the cable with a new high quality one. They can go faulty. If that doesn't work, check that you are outputting the correct signals from your devices, plus it is set to pick them up. If that doesn't work you might have a fault possibly on the TV.

marantz SR 4003 how to reset (hard reset ) remove power plug from power .Take cover off locate ic 12 (24 c eeprom) short pin 5 to ground while plugging the power in .Unit will show clear on fl screen .if the unit trips again check channels.

To reset the lamp timer for the Marant VP8600 you will need your remote.

Step 1: Make sure the PJ is powered on

Step 2: Press the leftt arrow key, then right arrow key, then the Freeze button

Step 3: Press enter to reset