Hello
I have 2serious issues with PCB pls support
1. Filters as colleges described above do not switch in real while switched on display. No problem with switching by R232 and PC...
Any solution? I can see I am not he only one who experienced it.
2.I have distorted sound from RPI and cnat fix it. I dismantled even second PI to check is it everything ok. Unfortunately it dosnt work neither. In the same time Amanero and all digital inputs works fine... I didn't removed 3 resistors (may it be a case?) but do not use I2s input anyway and in case of further use of I2s I created switch to power off RPi while the Soekris is working.
3.Question: As I utilized dam PCB form previous project I had to lift it to find a place for connections. Here is the case: I skipped J2 and didn't connect any wires there.. IS it any use from this in standard configuration?
thank you
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1、Please see the reply from the previous post. Please synchronously monitor on the computer whether MCU sends out the filter change command.F5 F6...
2、If the differential I2S of the HDMI interface is to be used for standard i2s, several 33 resistors must be removed. Or you'll have to use the USB i2s.
2、If the differential I2S of the HDMI interface is to be used for standard i2s, several 33 resistors must be removed. Or you'll have to use the USB i2s.
Hi, Audiozen What about J2? Is it needed or may be skipped as I did? Will I loose any functionality this way?
Next question
I failed wit IR remote programming. I cant find any "RE button" then push it. The procedure as described on picture bellow is really not sufficient as I have no idea from where to start. Now any remote I tried just switching the source that's all.
@mimao
RE means Rotary Encoder 😉
It looks like AZ's kit stops switching filters after connecting PC/RPI to uManager via J10. After power cycle AZ's kit is working again (unless uManager will be connected again).
RE means Rotary Encoder 😉
It looks like AZ's kit stops switching filters after connecting PC/RPI to uManager via J10. After power cycle AZ's kit is working again (unless uManager will be connected again).
AZ's kit can do nothing after connecting PC/RPI to uManager. So don't press +++ ，so that the command can be monitored.
@mimao
Press and hold the encoder, and then turn on the power.Then you can see the program of setup remoter.
：）
Press and hold the encoder, and then turn on the power.Then you can see the program of setup remoter.
：）
@mimao
J2 must be connected unless you do not use AES or coaxial and optical input.
J2 must be connected unless you do not use AES or coaxial and optical input.
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Thank you - I tested it without connected J2 before fixing... then removed wires and did not test again optical and AES 🙂
PS
I managed to set Remote 🙂
Hi Audiozen,
I've got a question: Is it possible to communicate with AZ SK kit?
To be more precise: I want to know which source is already selected and trigger selection of other source. I want to do this from my PC/Rpi.
BR,
Seba
I've got a question: Is it possible to communicate with AZ SK kit?
To be more precise: I want to know which source is already selected and trigger selection of other source. I want to do this from my PC/Rpi.
BR,
Seba
There is no way to communicate with AZ, because the core is dam, and AZ just sends instructions to dam. You can try and read the state information of dam with raspberry pie. The more information can be read in the user's Manual of dam.
I can read everything from dam. I know that. the problem is to know which source is selected. As far as I understand, AZ Kit is responsible for switching between eg. USB and I2S inputs. Dam has only one I2S input so it means that AZ kit has I2S multiswitch on-board. I suppose that switching between I2S and USB is performed on AZ Kit level and dam has no information about that. Am I right?
You're right. AZ adds 2 switches to share the interface. One is I2S, the other is SPDIF. However, there is no design to provide external signal instructions, so I am very sorry, can not solve your request.
For the SK the largest 25v capacitor that will fit is 11000uf (x2 = 22,000uf). I know it's overkill but at what point do I need to worry about reliability, in-rush current, etc ?
Yes, the only thing you need to worry about is that the capacitance is too large to be installed.��
Hi, AudioZen:
(revised quwstion)
I plan to build dac (balanced mode) based on two dam1121.
i'd like to know if both kits (lite or regular) support dam1121 in addition to dam1021 and how your mcu can be used in the dam1121 dac in the balanced mode.
(revised quwstion)
I plan to build dac (balanced mode) based on two dam1121.
i'd like to know if both kits (lite or regular) support dam1121 in addition to dam1021 and how your mcu can be used in the dam1121 dac in the balanced mode.