Where can I get working flash data for an Onkyo TX-NR807 after replacing the DSP with a D830K013DZKB5?
A working NR807 dump for the D830K013DZKB5 DSP was offered in the thread, and it was reported to run correctly on an SR707 with NR807 flash data [#18493880][#20190576] However, the same bin was said not to work with the original 11AZKB DSP, so it appears to be specific to the newer chip family [#19432031]
Hy I repair a lot of onkyos with manufacturing problem.
All onkyo from NRXX08 working good, but now I would like to repair a nr807. I changed the DSP from tmsd830k011azkb to d830k013dzkb5.
The amplifier booted up speakers is lighting, but no sound...
Hello, I am trying to do the same procedure for a TX-NR1007. I changed the DSP chip to a D830K013DZBK4 and now I have speaker icons and network, but no sound. First I tried changing the Oscillator to a 20MHz one but with it the network stopped working so I reverted to the 24MHz one and the network came back. Today I tried the 807 dump for the new DSP chip but it did not work, I got ?????????? on the DSP3 info, before it was ok. The NAND was programmed with BeeProg without any issue. Can some of you point me in the right direction? I would really appreciate it. Thank You!
So, after some testing I found problems with sound being stopped/muted for a fraction of a second every so often. I was thinking that it is caused by wrong oscillator frequency so I changed it from 24 to 20 MHz but it didn't solve the issue. Anyone has ideas ?
As I mentioned above the receiver plays, but every few tens of seconds the sound is interrupted/muted for a fraction of a second. Replacing the quartz from 24 to 20 MHz (which is used in other Onkyo with this DSP) did not solve the problem.
Anybody has any idea what could be the cause ? Maybe Mr. @fachura has encountered something like this ?
I've been advised that the D830K013DZKB4 won't work in the 807/808 without a complete firmware update, which Onkyo never released to the public but installed on units they repaired under warranty.
Your message says the D830K013DZKB5 works in place of the 808's original D830K013BZKB3 as a direct replacement and no firmware update is required? Can you confirm this is fully tested with no problems? Where do you buy your DSP chips, Aliexpress? I have had all non-working fakes from there so far.
I had original dzkb5 in the past 2.5 - 3 years ago everything was working well with that chip, I was buying it on hkinventory. No deform on the surface no reprint, no reball.
I was paying around 30-40 USD / pcs repaired something like 50 amp 3 of them still working without any problem, close to my family and friends, the rest was sold or repaired I never had problem that time. That time was impossible to find dzkb5 chip on AliExpress or eBay.
Something like 1.5 or 2 years ago Chinese started to produce this kind of bullshit chips in high capacity, reprint them and now all of the distributors send the shit fake chips. Fake chips possible to immediately recognize. When the transform was coming they started to send good ti logo good DSP logo only characters was different, and couldn't stream audio, probably they found out the XD series good and they started to reprint, after everything was different, like TI logo and DSP logo, distributors don't know about it nothing they are idiots, this shit started in huge lye....
Now impossible to find original good one with correct price, I cannot anymore, and I quit from this repairing, 100 USD for a chip is too high.... My distributors all of them just change and started to send the shit chips...
For me with that chip was working well the nr808 with original data inside and I was changing from dzkb3. I think that chip was 100% original ! I was checking it in the workplace with microscope also I was checking the balls that chip was fine, also characters was perfect. My father has a nr818 still work well with that looks like 100% original dzkb5 chip, every function.
Sometimes I still buy some high grade amplifier than I buy another one with low grade same chip and replace, if I want to save....
It's good to know the DZKB5 can replace the older BZKB3 and doesn't need updated firmware to work. I scrapped my 808 for parts now because I can't source a genuine replacement D830 'D'5 chip. I tried a DZKB4 from a trusted source in China but I don't think it was new as claimed. The markings were genuine but it was reballed and when fitted in the 808 it still didn't work. I also read the NAND and tried a file dump from another owner with a new chip but still no sound. Later Onkyos like the 636 use the DZKB5 but they are worth more to repair and sell than the older high-end models now, so it isn't worth scrapping them for the DSP chips.
I have mostly repaired Pioneer receivers and prefer those because there are fewer problems with the DSP flash memory. The LAN and USB functions are handled by another processor so they are just for the audio side. The D810 'B' chips in them usually work again when reflowed or reballed with leaded solder balls. The high-end models use QFP D808 devices and I have bought lots of the 'D' versions from Aliexpress with no problem. Some have 2 x 176 pin QFPs but these are not difficult to replace, just time-consuming with a lot of soldering.
I would like to get an Onkyo NR3008/5008 and repair one of those with a DZKB5 because they are real monster amps and not too out of date unless you want the latest 4K Atmos bling, which I don't.
HT-R693 is a 636 in disguise and has the same HDMI board.... I found one with a blown channel for 30 GBP but it was an easy repair and I sold it for 200 GBP.
You are correct.... it's worth too much to break up for the TI chips unfortunately!
This bin for dzkb3 dzkb4 dzkb5 chip not work with 11azkb!
Can I use this dump to switch 11AZKB in my TX-SR707 to DZKB5? Thanks
Added after 10 [minutes]:
I'm sorry for hijacking your thread. I have TX-SR707 with no sound issue. It might have corrupt data in NAND IC or bad DSP processor, not sure. Do you guys have original dump? Also if I decide to switch to D830K013DZKB5 would you have dump for that modification? Sorry for asking a lot, hopefully I can help you in future. I do have some dumps for other Onkyos and Pioneers. Thanks
As I mentioned above the receiver plays, but every few tens of seconds the sound is interrupted/muted for a fraction of a second. Replacing the quartz from 24 to 20 MHz (which is used in other Onkyo with this DSP) did not solve the problem.
This is definitely a DSP D830 and not an XD830? Because in these XD I think it is....
I had the same problem. I took it to https://electro-lab.eu/ and they replaced it with a D830K013BZKB4. They changed something else in the software and it works perfekt!!!
I had the same problem. I took it to https://electro-lab.eu/ and they replaced it with a D830K013BZKB4. They changed something else in the software and it works perfekt!!!
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Well, it won't work for you for a long time, because BZKB is a defective series and you probably have a used one installed, because Texas In. hasn't produced these chips since the revised revision of DZKB came out, which is more than 10 years.... also new ones of these chips are no longer available. A new one would last as long as the average life of these chips, i.e. around 10,000 hours. The one you have is a total loss. Just out of curiosity, how much did they charge you for such a cylinder?
✨ The discussion centers on repairing Onkyo TX-NR807 receivers experiencing no sound after replacing the DSP chip from TMSD830K011AZKB to D830K013DZKB5. The amplifier powers on with speaker indicators but lacks audio output. Users confirm that the DZKB5 chip can replace the older BZKB3 chip without requiring a firmware update, although Onkyo never publicly released updated firmware for this change. Genuine DZKB5 chips were originally sourced from reliable suppliers like hkinventory, but counterfeit chips have proliferated on platforms like AliExpress, causing functional failures. Flash data dumps for the NR807 with DZKB5 are available and have been tested successfully, including compatibility with TX-SR707 units. Attempts to use flash data from NR807 on other models like TX-NR808 or TX-NR1007 show mixed results, with some requiring specific firmware or oscillator adjustments. The oscillator frequency (20 MHz vs. 24 MHz) affects network and sound stability but does not fully resolve intermittent audio muting issues. Some users recommend sourcing DSP chips from models like Onkyo SR333 or HT-R393, which use DZKB4 chips and are more affordable. The discussion also notes that later Onkyo models such as the 636 use DZKB5 chips but are often too valuable to harvest for parts. Professional repair services have replaced defective chips with D830K013BZKB4 and updated software to restore functionality, though these older BZKB series chips are considered defective and obsolete, with limited lifespan and availability. Overall, successful repair depends on obtaining genuine DSP chips, correct flash data, and sometimes firmware modifications. Generated by the language model.
Look for uneven TI logos, mismatched font height, and fresh lead-free balls on an otherwise worn body. “Distributors send the fake chips… characters were different” [Elektroda, mozsy93, post #20061179]
Field data show ≥ 3 years of normal use on 47 out of 50 receivers repaired with genuine DZKB5, an estimated 94 % survival rate [Elektroda, mozsy93, post #20061179]
What is the warranty practice after a third-party DSP swap?
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