srt
Junior Member
Posts: 76
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Post by srt on Sept 22, 2021 22:41:40 GMT -5
i have a question can i replace D810(Found only in Pioneers)DSP chip with D830(found in Onkyo)? i know both are same identical pins connections , but i never tried yet
In Yamaha its AVRs its starting with D80YK...
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Post by andyb1712 on Sept 23, 2021 0:20:37 GMT -5
I don't think this will work. I tried to repair a Onkyo TX-NR808 and put a D810 in place of a D830 by mistake, which didn't work.
The D830 chips are harder to get and more expensive than the D810 too.
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srt
Junior Member
Posts: 76
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Post by srt on Sept 26, 2021 6:54:41 GMT -5
I don't think this will work. I tried to repair a Onkyo TX-NR808 and put a D810 in place of a D830 by mistake, which didn't work. The D830 chips are harder to get and more expensive than the D810 too. In OnkYo 808 (CRYSTAL FREQ: 24MHZ) its 300Mhz chip so I don’t think d810 will work if its 400mhz |
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Post by andyb1712 on Sept 26, 2021 13:58:52 GMT -5
I think Onkyo fixed some with Rev D 400 chips but probably fitted a 20M crystal and revised firmware to make it work. I tried changing the crystal but without the right firmware it wasn't going to work. I dismantled my 808 for spares because it was an old model. I used the main power transformer to convert a US spec Pioneer VSX53 I bought on eBay to 230V operation.  |
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srt
Junior Member
Posts: 76
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Post by srt on Sept 26, 2021 22:06:26 GMT -5
I think Onkyo fixed some with Rev D 400 chips but probably fitted a 20M crystal and revised firmware to make it work. I tried changing the crystal but without the right firmware it wasn't going to work. I dismantled my 808 for spares because it was an old model. I used the main power transformer to convert a US spec Pioneer VSX53 I bought on eBay to 230V operation. Great! |
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wisky
New Member
Posts: 3
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Post by wisky on Apr 6, 2022 0:33:12 GMT -5
If you send me a copy of the two files I can also take a look if you want. I can compare them to the ones from my working LX86. IC9704 is for the TI DSP, which is an almost identical device to the ones in mine. Good morning, I have an Lx86 that appears in the firmware version in DSP ***. I bought a firmware programmer, I read the forums but I don't have the programs for the two ICs. Can you send them to me on a data transfer site or something similar? You tell me how much I owe you for the firmware and I pay you. Thanks. |
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wisky
New Member
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Post by wisky on Apr 7, 2022 6:56:43 GMT -5
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Post by andyb1712 on Apr 7, 2022 9:28:46 GMT -5
Have you read my post on the LX56 repair? repairalmostanything.com/thread/901/pioneer-sc-lx56-repairI fixed that by copying address range 0-10000h from IC9704 to IC9004. Before I did this, I had to replace both DSP chips, IC9002 and 9702 because they had failed, causing the firmware corruption. After this firmware 'patch' I had UE22 back but this was cleared with a full firmware update from USB. You need to replace both DSP chips and fix the firmware. It won't work with just one or the other. |
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wisky
New Member
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Post by wisky on Apr 7, 2022 10:21:53 GMT -5
I also read that topic, I ordered the two DTS Chips from Ebay but I said that maybe you also saved the two firmware by writing them on IC 9703 and IC 9004.
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