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Post by Deleted on Jan 11, 2022 6:07:22 GMT -5
I have had limited success at repairing Pioneer amps with the BGA DSP, D810K013BZKB4, mainly because the parts bought from China are either fake or simply do not work.
Most of the D810K013DZKB4 I've bought look physically different to the original devices and I suspect are just salvaged B variant chips that have been reballed and marked as the later D variant.
Tjmotter documented the same problem problem with the D830 chip used in Onkyo amps and concluded the only way to go was remove later D chips from boards out of newer models and reball them himself.
Unfortunately Pioneer switched to QFP chips in their later models and didn't put the D variant of the BGA in as far as I'm aware.
Does anyone know of any product that uses the D810K013DZKB4 as the OEM fitted part because I'm fed up buying the rubbish sold on Aliexpress.
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Post by tjmotter on Mar 2, 2022 10:35:56 GMT -5
For those of you looking for the D810 "D" rev, note that Onkyo used this part as the 2nd DSP on the NR636 and the NR838. These can be removed, re-balled and installed in a Pioneer amp. The HDMI boards in these units suffer from failing HDMI controller chips so they can be found on eBay as "Parts only" for a reasonable price.
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Post by Deleted on Mar 2, 2022 11:13:34 GMT -5
These do appear to be the only models using the D810 'D' chip as an OE part. The only downside is the 636 and 838 are generally worth more when repaired than the older Pioneer units, so it's a difficult decision whether to scrap them.
I've bought two 636s so far. One just needed a reset to get it out of DC protect mode and the other was one channel blown, so both fairly cheap to fix. The older high end Pioneers also use two D810s making it even less practical.
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Post by mastertech on Mar 2, 2022 20:59:30 GMT -5
At least it is good to know, no matter which way one chooses to go based on their own preferences.
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Post by tjmotter on Mar 3, 2022 6:57:19 GMT -5
These do appear to be the only models using the D810 'D' chip as an OE part. The only downside is the 636 and 838 are generally worth more when repaired than the older Pioneer units, so it's a difficult decision whether to scrap them. I've bought two 636s so far. One just needed a reset to get it out of DC protect mode and the other was one channel blown, so both fairly cheap to fix. The older high end Pioneers also use two D810s making it even less practical. FWIW, I rarely buy whole units anymore. There are a number of people on eBay who sell just the broken HDMI boards. I typically pay about $20 US but have seen them as high as $50. I used to watch these sellers pretty closely and it became obvious to me that 2-3 of them had a constant supply of broken HDMI boards which made me consider that they were probably associated with Onkyo repair depot's or authorized Service partners. In fact, I would routinely message several of them when I needed a specific board that wasn't listed on eBay and they were always able to source them for me for a very reasonable price. |
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Post by tibimakai on Mar 3, 2022 11:25:16 GMT -5
Tj is back? That is a nice surprise!!
My 838 still has HDMI input issues(no input on any of them), and I have replaced the IC. Course, it is from Ali. That IC could be fake as well?
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Post by Deleted on Mar 3, 2022 11:42:11 GMT -5
I've not found any Onkyo HDMI boards for sale on eBay UK so far but I have a saved search for those part numbers just in case. It must have been a US seller with a trade outlet for those faulty boards, which was definitely a good find.
As for Aliexpress parts, I've had mixed success with those. The D808 QFP chips have all worked fine and look genuine. The D830 and 810 ones have all been fakes and have looked it too. If it's a HDMI chip, I'd be inclined to try and source it from a scrap board first now before risking Ali.
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