AVR300 SURROUND SOUND RECEIVER
- 10 -
5. Upgrade DSP software
DSP code in Flash Rom AT29LV040A can be upgraded via RS232.
• Connect the AVR300 to the computer.
• On AVR300, press the buttons ‘RDS INFO’ and ‘FM Mute/Mono’ at the same time. Then the front panel should
display ‘Program Req..:’. Then press ‘OK’ button. Or you can press ‘RDS INFO’ and ‘FM Mute/Mono’ for 3 sec-
onds. Front panel will then display ‘Program..’. The AVR300 is ready to be programmed.
Note: when the program process is stopped unexpectedly, the program in IC may be erased. You can press these
two buttons for 3 seconds for programming.
• Run the ‘AVR300test.exe’ and click the button ‘Program to DSP’. Select the appropriate COM Port and click the
“Browse…” to load the s28 fi le.
• Then click the button ‘Program’. Upon the upgrade process is completed, a pop window will be shown.
• Finally, use Dolby, DTS, PCM test discs to see if all decodings are ok. This ensure the DSP has been upgraded
successfully.
To Next Page
Loading...
Need help?
General
