Post by dante on Jun 22, 2023 3:02:39 GMT -5
Hello wonderful everyones
Im new to the forum and very happy to be here.
Anyways I have an ONKYO NR-6050 which turns on to a please update prompt, attempting an update via net/USB fails at 30% with a 2-83 error, occasionally it might actually just enter normal operating mode, and am able to navigate via the front display and even shows up in my networks and pairs bluetooth, but with no sound/HDMI out.
After opening it up, turns out it had a burnt chip, A Renesas R5F56519ADFP microcontroller (literally has a hole in it).
I have ordered a replacement and waiting for it to arrive, but in the meantime I have some questions.
I have skimmed through the forum and have read bit about firmware, and about Renesas flashers and firmware dumps, haven’t been able to delve deep, but just in case, will I be needing any of this for my particular scenario?
My second question is from curiosity, how does it manage to boot and (occasionally) exhibit apparently normal behaviour, I.e. occasionally it will boot into the display menus and am able to navigate, connect to bluetooth, etc. what is the purpose of this chip? I am assuming it does some basic controls like enabling different parts of the unit eg HDMI, Power Amplifier, but doesn't appear to affect other parts, (like the front panel display navigation, bluetooth, wifi). This is odd, because I’m used to seeing a burnt component just render an entire digital system useless.
Finally, as I am not that sophisticated of an electronics engineer, (my last serious contact with board repair is like 10 years ago, and was more about winging it than actual engineering,) so there is a huge possibility I might screw this over, if the potatoes fall out the sack, anyone know if I can get a HDMI board? Hopefully someone on this forum has pointers? I know I could buy another dead unit from eBay with a working board, but that won’t be possible due to shipping costs, (I forgot to mention, I’m in Nairobi Kenya, so shipping weight will cost more than the price of an entire unit).
Sorry for the long ramble, thank you for reading and hoping to hear back from someone.
Im new to the forum and very happy to be here.
Anyways I have an ONKYO NR-6050 which turns on to a please update prompt, attempting an update via net/USB fails at 30% with a 2-83 error, occasionally it might actually just enter normal operating mode, and am able to navigate via the front display and even shows up in my networks and pairs bluetooth, but with no sound/HDMI out.
After opening it up, turns out it had a burnt chip, A Renesas R5F56519ADFP microcontroller (literally has a hole in it).
I have ordered a replacement and waiting for it to arrive, but in the meantime I have some questions.
I have skimmed through the forum and have read bit about firmware, and about Renesas flashers and firmware dumps, haven’t been able to delve deep, but just in case, will I be needing any of this for my particular scenario?
My second question is from curiosity, how does it manage to boot and (occasionally) exhibit apparently normal behaviour, I.e. occasionally it will boot into the display menus and am able to navigate, connect to bluetooth, etc. what is the purpose of this chip? I am assuming it does some basic controls like enabling different parts of the unit eg HDMI, Power Amplifier, but doesn't appear to affect other parts, (like the front panel display navigation, bluetooth, wifi). This is odd, because I’m used to seeing a burnt component just render an entire digital system useless.
Finally, as I am not that sophisticated of an electronics engineer, (my last serious contact with board repair is like 10 years ago, and was more about winging it than actual engineering,) so there is a huge possibility I might screw this over, if the potatoes fall out the sack, anyone know if I can get a HDMI board? Hopefully someone on this forum has pointers? I know I could buy another dead unit from eBay with a working board, but that won’t be possible due to shipping costs, (I forgot to mention, I’m in Nairobi Kenya, so shipping weight will cost more than the price of an entire unit).
Sorry for the long ramble, thank you for reading and hoping to hear back from someone.
