Denon AVR-2307CI 0028 Service Bulletin

The Operating Manual for DENON AV Receiver firmware update. Page 1 / 1

1. Specific update mode.

If you failed update during Main CPU update, then you need to use this specific update procedure.

1) The AV Receiver is connected with PC with the RS-232C cable. Refer to 1.3.

2) Push the ‘SPEAKER A’ + ‘ZONE 2’ button simultaneously.

And turn on the power switch of the AV Receiver.

3) Power indicator indicates red color. This is specific update mode.

4) Please execute the firmware update. Refer to 2.3.

2. Confirming the firmware’s number after upgraded

After completion of the updating operation, the new version number can be confirmed by

starting up the AVR-2307 according to the following procedure.

With the following operation, the AVR-2307 can be set to the Flash-ROM Version-Number

Confirmation Mode.

Turn the power of the AVR-2307 on, while holding both “STATUS” button and

“DIMMER” button on the front panel simultaneously.

STATUS

DIMMER

Turn

Power ON

Every time the “STATUS” Button is pressed, version numbers of the MAIN, SUB,

etc. are indicated on the front panel section in the following order.

Depression Button Name Remarks
1 STATUS MODEL AVR
2 STATUS MAIN 00.66
3 STATUS SUB 00.28
4 STATUS DSP 35.23