justbenice
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- Oct 2, 2015
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So did you manage to use the V5D ? Please let me know if it safe to use now. My XLR pin 1-2, 1-3, 2-3 now are arround 1mV only.
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So did you manage to use the V5D ? Please let me know if it safe to use now. My XLR pin 1-2, 1-3, 2-3 now are arround 1mV only.
It looks - yes. Please check this voltage when music playing and, how b0bb suggest, check power supply voltage between opa pin 4 and ground and 8 and ground. Shoud be less then 15V.
Thank you. I check those volt when music player it all around 1mV . But i tried all the way and could not trim the volt between pin 2-3 in left channel to 1mV, it is now 2.5mV . is it ok ?
I also check the pin 4- GRD and 8-GRD, it all around 14.9V .
BTW, did you put your V5D to the DAC now ? How long it have been use ?
left channel to 1mV, it is now 2.5mV . is it ok ? - it is because components (I/V resistors and caps) tolerance - I had the same before components repacement - see previous posts
Check please voltage on the RCA output. Before repacement I had 1,5mV in left channel- now I have 0,1mV.
Power supply is optimal for V5
Yes I put V5D today.
My left RCA is 0.4mV , right RCA is 1.5mV. So is it safe to put the V5D in ? I already burned the V5D one time so i don't want to burn it again It may not get warranty this time !
Ask Burson
I have 0,1 mV with default opa and 1,5mV with V5D. I ask Burson it is correct.
TX2575 take 7-10 days to settle in and the sound will smooth out by a small degree, it is not sensitive to temperature, one of the main reasons I chose it to avoid temp drift effects from the resistor self heating. The 9018 runs a fairly large current, so effects of resistive heating needs some attention.
Pulsar is expensive at 400 Euros and is not available for sale in every country, contact Pulsar to verify.
TX2575 take 7-10 days to settle in - 7-10 days 24h a day playing?
Pulsar is expensive but worth the price, isn't it?
5)The Tekdevice board needs a 10uF tantalum capacitor soldered between the IN pin on the regulator and ground, a suitable point is the bypass cap location, the one with the soldered jumper.
I mounted the the 10uF cap on the other side of the board.
NOTE: +ve electrode to the IN terminal and -ve to ground, do not connect the tantalum cap in reverse
Here is a suitable cap
http://www.mouser.com/ProductDetail/AVX/TAP106K020SCS/?qs=sGAEpiMZZMtZ1n0r9vR22d%252b8XmbM9QM8iVuE3tFomWE%3d
Hi b0bb,
The Pulsar has sent to me today. But I have a problem power supply for clock. I measued it today and I have 4,88V, so 1763 doesn't work. I don't know when it happend. Maybe Sanyo Oscon is damaged - I have to check it.
I would like to solder LT3045-S to caps leg on the other side of the board. Do you thing it is good idea?
Phase noise (dB) | Phase noise + 20uV FM modulated white noise (dB) | |
10Hz | -105 | -93.08 |
100Hz | -130 | -95.42 |
1kHz | -140 | -95.51 |
10kHz | -148 | -95.54 |
Jitter (fs) | 35.115 fs | 3769.48 fs |
I have http://pl.mouser.com/ProductDetail/KEMET/T350J156K035AT/?qs=sGAEpiMZZMtZ1n0r9vR22ZBQR9LXYg3mOZWE6B8GMKo%3d
Will it be suitable ?
You may have damaged a trace on the board while extracting the original caps, the OSCONS do not appear to be causing a problem.
Check the ground and connections to R1 and R2 are intact.
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