Build Thread for TPA BIII + Ian Async I2S FIFO + OPC NTD1 + Salas SSLV - Page 50 - diyAudio
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Old 25th March 2013, 04:50 AM   #491
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The heatsink is not high enough to mount the NTD1.
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Old 25th March 2013, 04:56 AM   #492
qusp is offline qusp  Australia
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I mean for all of the power supplies. poweramp cases arent always that large on the inside, as the sides include large heatsinks, which you havent used, so they just take up space.

I dont think you can drill the Ti regs, you might be better off getting some polymer putty to squeeze onto the corners to give a mounting arrangement.

this stuff is excellent sugru

Last edited by qusp; 25th March 2013 at 04:59 AM.
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Old 25th March 2013, 08:39 AM   #493
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The only PSU that can be attached to the heatsink is the SSLV.

The sugru is a very interesting product, will buy a pack to try.

As my NTD1 PCB burnt, do you know any epoxy for PCB trace repair?
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Old 25th March 2013, 04:42 PM   #494
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Quote:
Originally Posted by qusp View Post
why arent you utilizing the heatsinks on your case BPHK?

AR2 I prefer these which i'll also be using for the speakers
Yes, I use those as well. That is exactly I had on my mind in addition to SCII cables. I used one with 40 pins. For that I have to say, the best friend is Excel. The key is having a good list linking wire color codes and voltages.

Qusp, that was an awesome link for Sugru. I used something like liquid rubber, or paintable rubber, forgot the real name, but with sort of similar properties as Sugru. I found it very useful to make my own cable grummets. If I drilled the hole in the metal, it was great to paint that rubber around the edge to protect wires from being cut. Sugru seems even much more versatile and better. Thank you, outstanding find.
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Old 25th March 2013, 05:15 PM   #495
qusp is offline qusp  Australia
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@ BPHK: I know, that was my point, the poweramp chassis is only large if you can make use of the heatsinks, otherwise they just take up volume. Its done now though and it'll still fit i'm sure, it'll leave plenty of heatsink for if you want to go OTT shunts

trace repair, I would just use a wire, or some copper foil if you can.

@ AR2: yeah the sugru is handy as hell for mounting stuff, strain reliefs etc. you can set bumpers, or even attach threaded standoffs with it. whatever you like and it even has mild damping properties, though perhaps a bit too bouncy for clocks etc.

Last edited by qusp; 25th March 2013 at 05:17 PM.
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Old 25th March 2013, 05:23 PM   #496
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Originally Posted by palmito View Post
MisterRogers, did you start a thread on your Amanero/Acko islator/reclocker setup? If not, how about starting one? If it works out many of us would be very grateful, if it doesn't work out then it's documented for others not to go that way?

Thanks
I know others will be pursuing an identical setup, so rather than start a thread - I'll post as appropriate to the Reclocker thread :-)
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Old 10th April 2013, 03:06 PM   #497
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Spent almost a month to figure out how to put all the devices into the case and finally, I believe it can be done.

Also spent two weeks to trouble shoot the NTD1 and thanks Owen helped me to discover a stupid mistake (again)
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Old 27th April 2013, 01:32 PM   #498
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Drilling holes to fix all those PCBs is extremely time consuming. It is also difficult to ensure all holes are at the correct position. Except the USB input devices which will be mounted directly on the back panel, I should have mounted all other devices into the case and its time to connect them together.

I tested all the PSUs and they are all working fine. Then Ian's FIFO + i570 + SPDIF also working properly. The Arduino and relay boards are also OK. It's time to mount the BIII onto the NTD1

Before mounting the BIII, I measure all the voltage on the NTD1 again. One of the Vs dropped to 0.3xxV, others are 1.5xxV. I thought the VR was adjusted accidentally, but when I turned the VR fully to both direction, the voltage only vary between -2.xxV to 0.8xxV

I really upset, something failed again. Power off it and measure the FET, found low resistance from G to GRD. If the FET fail, I have to replace all four FET with the spare set

to check the FET, I have to desoldered it from the PCB, but remove the PCB from the heatsink is not easy. Putting it back after trouble shooting is a painful job.
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Old 27th April 2013, 05:25 PM   #499
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Originally Posted by bigpandahk View Post
Spent almost a month to figure out how to put all the devices into the case and finally, I believe it can be done.

Also spent two weeks to trouble shoot the NTD1 and thanks Owen helped me to discover a stupid mistake (again)
Looks awesome. It's amazing you integrated everything together!

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Old 28th April 2013, 09:01 AM   #500
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Thanks Ian.

Spent an hour to remove the heaksink from the case and the PCB from the heaksink. Desoldered the FET and found it still alive So it would be either the VR or the cap fail. Desoldered the VR and confirmed it's also fine. I thought ceramic cap is very reliable and would not fail. Measured the cap several times and confirmed that it's dead with a low resistant of 1xx ohms.
I don't have the same type of 10u cap, so replaced it with another 10u with higher voltage. Hope this wouldn't affect the sound.
Put the NTD1 back to the case, check everything again and connect all wires for control and signal. Power it up. No smoke
Fed signal to Optical in, BIII lock, mute LED off, so far so good. Still hasn't connect the audio output, need fine tune on the Arduino program and connect Arduino with i570, final will be the drawing for front panel express
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