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Post by dobrykamil on Jun 23, 2023 6:59:17 GMT -5
Onkyo(other brands too) is using CS49844 since like 2016. I would check all digital data output signals like ADSP_MCK, SD0 (LR channels), SD1 (SL,SR channels) ect..(pins 56-63). If all these signals are present, then focus on DAC outputs. Have you also checked audio from pre-outs phono sockets?
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Post by dobrykamil on Jan 13, 2023 17:56:24 GMT -5
Well, I've finally found some spare time, and fixed this amp. Have a look at the image below. I think, this doesn't need explanation why DSP2 FW was keep getting corrupted. Internet update went absolutely fine, with lovely COMPLETE message at the end.
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Post by dobrykamil on Jan 11, 2023 17:03:29 GMT -5
Ok volume problem, i think, was caused by some ealier repairs on r2a15218fp. Volume clk pin was not soldered. I did resolder all r2a15218fp pins. Found some more loose pins. Will test run the performance of this receiver. Great find..please update us regarding this. Do you always have clock signal on pin 50?
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Post by dobrykamil on Jan 11, 2023 10:37:27 GMT -5
Also check r2a15218fp's both voltage rails.
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Post by dobrykamil on Jan 6, 2023 6:08:17 GMT -5
Those are DSP output data lines. MCK should be around 28MHz, LRCK 3.42Mhz, BCK 3.8MHz (or similar value) SD0 is for L and R channel, SD1 SL/SB and so on. Make sure to set Onkyo to ALL CH Stereo mode when testing all those lines. Now, I rememebr working on tx-nr414 some time ago with no sound issue, where DSP wasn't the problem. Also, when I tried to play some music via usb port, play time would either stay at 00:00 or behave really erratically. Long story short, I found that DIR chip (Q301, PCM9211) was the culprit. Not sure if this is the same case with your board, but I think it's worth mentioning.
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Post by dobrykamil on Jan 4, 2023 20:01:13 GMT -5
If the all FW versions are shown, then foucus on DAC digital input lines like BCK, LRCK, SD0..SD4, MCK. Also, use analog inputs like CD and use DIRECT mode. You should hear relay click sound, 4-5 seconds after power on.
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Post by dobrykamil on Dec 5, 2022 17:22:27 GMT -5
If it hangs on Power On message, then perhaps CPU isn't fully loading eeprom memory, hence it's not issuing ENABLE signal for 3.3V. 1.8V & 1.2V rails.
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Post by dobrykamil on Dec 5, 2022 17:18:53 GMT -5
Daft question, but you did erased SPI memory before flashing my .bin dump, right?
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Post by dobrykamil on Dec 5, 2022 4:58:37 GMT -5
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Post by dobrykamil on Dec 2, 2022 15:26:50 GMT -5
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Post by dobrykamil on Sept 16, 2022 11:02:34 GMT -5
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Post by dobrykamil on Sept 1, 2022 14:48:58 GMT -5
You don't flash dsp chip mate, only its SPI memory chip, think it's Q3401.
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Post by dobrykamil on Aug 26, 2022 11:03:51 GMT -5
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Post by dobrykamil on Jul 25, 2022 4:33:36 GMT -5
I've recently fixed tx-nr818 with exaclty the same issue. Long story short, all this was caused by some really bad joints between 1st dsp and hdmi board. After reballing and soldering 1st back, sound was woring and was able to upgrade firmware for 2nd dsp.
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Post by dobrykamil on Apr 27, 2022 14:52:34 GMT -5
Can you confirm, that original dsp chip is D830K013BZKB4 and not D810K013BZKB4?
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