nDAC not switching input automatically
Posted by: aloysiuschan on 23 January 2012
Just like to have some advice if the digital input 1 to 4 of the nDAC had kaput.
My dealer loan it over this week and it had problem switching automatically when i played it through HDX or NDX. I am using BNC / RCA or BNC / BNC using input 1 or 2 with no success. Turning off and on does not help too.
But playing through front USB input is OK.
My questions are,
1. Does the nDAC switch automatically when play from source?
2. Or does it require human intervention to switch the input by pressing the front buttons(1 thru 4)?
3. Is there a way to reset the nDAC?
Appreciate valuable input and advice.
Thank You.
select by button reset for what purpose
Simon
Jan
It is my understanding that pressing 7, 8, 9, or 0 on your pre remote selects 1, 2, 3, and 4 respectively on the nDAC while automatically selecting Aux1 (or your other choice, if you reconfigure) on the pre. This works with or without the RC5 lead. It worked for me when I demoed the nDAC with my NAC 112.
The only source-play-triggering I am aware of on the nDAC is when you insert a thumb drive, or when you connect both Toslink and co-ax to the same input.
I agree this is less wonderful than the way auto-source-select works when you press CD Play on the remote and the pre switches correctly at the same time.
Re the total lack of sound, I think you need to manually set the NDX and HDX to output a digital signal, and disable their analog outs, disabling their onboard DACs. This is just a guess, as I have neither.
Nick
Simon
You are right, garyi. Repeated presses toggles the sources on a given input. Not sure why one would double up unless they have a lot of digital sources, or the sources they have have limited connection options.
Jan
Yes, I checked that it is correctly set to DIN.
It is my understanding that pressing 7, 8, 9, or 0 on your pre remote selects 1, 2, 3, and 4 respectively on the nDAC while automatically selecting Aux1 (or your other choice, if you reconfigure) on the pre. This works with or without the RC5 lead. It worked for me when I demoed the nDAC with my NAC 112.
The only source-play-triggering I am aware of on the nDAC is when you insert a thumb drive, or when you connect both Toslink and co-ax to the same input.
I agree this is less wonderful than the way auto-source-select works when you press CD Play on the remote and the pre switches correctly at the same time.
Re the total lack of sound, I think you need to manually set the NDX and HDX to output a digital signal, and disable their analog outs, disabling their onboard DACs. This is just a guess, as I have neither.
Nick
Yes, DIN connection made to PRE is AUX1 and I can switch using pre-remote 7,8,9,0 just that no sound from BNC input 7 & 8 (Digital In from HDX or NDX Digital out).
Playing through iPOD / iPHONE are ok and nDAC sync immediately after connecting it.
If you read the DAC manual it stated that DAC will switch input automatically if any source is playing first. First come first serve but it a device is connected by the USB it will play from it regardless.
NO, it does not require to hit the input button twice.
You are right, garyi. Repeated presses toggles the sources on a given input. Not sure why one would double up unless they have a lot of digital sources, or the sources they have have limited connection options.
For trouble-shooting, either HDX or NDX is connected to the DAC directly via BNC input 1 or 2.
By switching the input 1 or 2, the DAC should sync (the SYNC LED will light up) but it did not. Funny that it immediately sync when a device was connected via front USB port.
Guys, thanks for the valuable guidance and advice.
I will return the DAC to dealer and test it in the shop. I may have missed some steps in connection?
But the DAC should be a pita to use. Rocket scientist not require. HAHA.
Thank You and have a Great Lunar New year of the Dragon!
Updates.
The HDX digital output board kaput and my local dealer had it swap to another board from another HDX. Now it working.
Not sure if soldering on my HDX confirm to Naim standard. Hope no burnt or blow output board from the soldering in near future.
It is my understanding that pressing 7, 8, 9, or 0 on your pre remote selects 1, 2, 3, and 4 respectively on the nDAC while automatically selecting Aux1 (or your other choice, if you reconfigure) on the pre. This works with or without the RC5 lead. It worked for me when I demoed the nDAC with my NAC 112.
Cleaning up after myself: now that I actually have an nDAC again I see I was incorrect in that without the RC5 IC from the DAC to NAC, the switch to AUX1 is NOT automatic when you press 7, 8,9, or 0. I do not yet have the RC5 lead, so that test will have to wait.
Sorry for the misinformation.
Nick