Hi,
I have an Arcam black box with the TDA1541A chip. After doing a lot of reading I managed to removed the filter chip and works even better. Then a lot more reading and discovered a lot of people connecting a I2s board to the TDA. I purchased one and struggling to get it to work.
There is a post about removing the muting transistor to enable this which I did but no sound is coming out!
I connected WSBD - LRCK, CLBD to BCLK and DABD to DATA. Connected a 5v power source also to the board but nothing after feeding it with a 16 bit 44.1 signal.
Any help greatly appreciated!
I have an Arcam black box with the TDA1541A chip. After doing a lot of reading I managed to removed the filter chip and works even better. Then a lot more reading and discovered a lot of people connecting a I2s board to the TDA. I purchased one and struggling to get it to work.
There is a post about removing the muting transistor to enable this which I did but no sound is coming out!
I connected WSBD - LRCK, CLBD to BCLK and DABD to DATA. Connected a 5v power source also to the board but nothing after feeding it with a 16 bit 44.1 signal.
Any help greatly appreciated!
Attachments
6V
when I measure from dac of ground to pin 3 I get 6v but from the ground of the coax card to pin 3 I get 1.8v
when I measure from dac of ground to pin 3 I get 6v but from the ground of the coax card to pin 3 I get 1.8v
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Have you got an oscilloscope ? Failing that, have you got something else to which you can connect the CS8412 board to confirm it works ?
Where do you connect the ground from the new CS8412 board? I can't remember where I put it when I used similar in with an old arcam alpha board but I do remember it did matter that there was a ground connection between my 2 boards
Just dragged it out of the cupboard. Looks like I have linked GND from the CS chip to a GND at the TDA - don't think it matters AGND or DGND. However, this might have been necessary for me because I used tube output? It's all too long ago.
Just dragged it out of the cupboard. Looks like I have linked GND from the CS chip to a GND at the TDA - don't think it matters AGND or DGND. However, this might have been necessary for me because I used tube output? It's all too long ago.
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My scope is very cheap and limited to Khz not Mhz. My multi meter actually does Mhz!
What am i measuring?
You are the man! Its done!!!! It wouldn't work with the chassis ground but another ground did!
Thank you good sir! Thanks for all that helped!
Must be getting old. Should have spotted that with this - "from the ground of the coax card to pin 3 I get 1.8v"
Brilliant!!
I have been a member and beneficiary of this forum for 4 years - this is the first time I have been able to be the helper rather than the helpee!! This means I must have learnt something in that time.
I have been a member and beneficiary of this forum for 4 years - this is the first time I have been able to be the helper rather than the helpee!! This means I must have learnt something in that time.