I am trying to help fix a Pioneer SC-LX79 that appears to have the same problem as my VSX-2021. No audio out and *** where the DSP firmware version should be from a failed update. Replacing the DSP chip isn't the big problem; it's getting a firmware dump for IC9704 to correct the corrupted one afterwards.
I figured it might be possible to extract the required DSP firmware from a 'full' USB update file, so took a look at my saved VSX-2021 IC9004 file and searched the full update file for this code to see if this is possible. I was unable to locate it so the main file must be decoded in some way when it is loaded into the receiver.
I'm no software engineer by any standards so perhaps someone can assist in extracting the DSP part of the firmware from Pioneer's update for the SC-LX79 and converting it to the right format to program into the flash chip?
From reading on here, firmware for Onkyo models has been decrypted to give the individual files. Perhaps someone can do this with the Pioneer firmware too? Other than that I can only think maybe it's a format conversion needed like hex to binary??
nodols: Checked CPU doesn't give power to secondary CPU any idea what seems to be problem?
Jun 13, 2022 22:22:51 GMT -5
nodols: Repairing this Denon AVR 5800 dead to the world. checked fuse and power supply seems to be okay.
Jun 13, 2022 22:20:00 GMT -5
julio: Hello, someone who can share the latest firmware update for the pioneer sc-lx56 please, I would greatly appreciate it, regards.
May 19, 2022 16:01:07 GMT -5
jadi: Good afternoon everyone. I need help with CY920 Error on screen. Denon AVR x7200wa. What does it mean and how can I fix it? Tried reset and reboot but massage reappeared. Thanks
Apr 18, 2022 11:12:11 GMT -5
nashou: How is everyone doing?
Jan 31, 2022 23:15:49 GMT -5
nashou: Haavnt been here for a while!!!
Jan 31, 2022 23:15:42 GMT -5
dinotech: Hi Guys... my Pioneer VSX-D1S is stuck in standby mode. resetting the amp didnt work. any help in getting it running is most appreciated.
Jan 3, 2022 2:15:50 GMT -5
ali: i need help about onkyo txnr626 board no bchdm 1357 2 i buy a month ago dead i found something that a capistor number c8901 16v 100uf is missing plz guide me
Jan 1, 2022 12:16:18 GMT -5
ali: i am new in electronics feild
Jan 1, 2022 12:08:23 GMT -5
docsss: Hi, HELP ! I really need firmware DSP2 Q3401 for ONKYO TX-NR3007 . [email protected]
Aug 29, 2021 11:47:32 GMT -5
timorenga: Gracias por aceptarme como miembro del foro, Estoy buscando manual de servicio para Denon AVR4310CI si alguien lo tiene se agradecería mucho que lo comparta Gracias
Jul 17, 2021 20:07:03 GMT -5