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#1641 |
diyAudio Member
Join Date: Aug 2015
Location: Russia
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![]() I used solder paste and an inexpensive hot air gun from Aliexpress. 8586 SMD BGA Rework Solder Station Hot Air Blower Heat Gun Intelligent Detection And Cool Air Welding Soldering Iron Repair Tool-in Soldering Stations from Tools on AliExpress - 11.11_Double 11_Singles' Day |
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#1642 | |
diyAudio Member
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Quote:
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My system is here http://randytsuch-audio.blogspot.com/2005/10/my-system.html |
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#1643 | |
diyAudio Member
Join Date: Jun 2007
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Quote:
I still offer the "assembly" of the DSC2 as-a-service for who want to listen to this jewel but is not willing to equip properly for such a delicate job. I still have PCB's left as well as a suspected-original NXP shift register ( ![]() btw... is an amazing device. i can't really listen to anything else. Not sure about the reclock/isolation section... as i have never listed to the 2.5.2 nor the 2.6.2... but i guess they are great as well as the "2". |
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#1644 | |
diyAudio Member
Join Date: Jun 2003
Location: Ruds Vedby
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Quote:
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What is Home Theatre without good sound? |
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#1645 |
diyAudio Member
Join Date: Jun 2003
Location: Ruds Vedby
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By the way, PPY is right on saying , that it is easy to find errors in the output by measuring the AC on each of the resistors at the outputs from the shift registers. I found a couple of bad solder joints that way.
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What is Home Theatre without good sound? |
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#1646 |
diyAudio Member
Join Date: Aug 2015
Location: Russia
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Another DC problem may be a damaged TS5A3167DBVR key. They are very sensitive to static electricity. If you often changed transformers, then this IC could break through. There were two cases where replacing these chips solved the DC problem.
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#1647 |
diyAudio Member
Join Date: Jan 2010
Location: Somerset, England
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I'm fortunate in having a friend with a reflow oven and he does an excellent job for me with more complex smd boards. I have also done some assembly with a hot air rework station.
With both an oven and a hot air station using a stencil to apply the solder paste facilitates a much better job and should avoid having to do remedial work because of solder bridges and the like. You can get reasonably priced solder stencils from PCB fabricators like JLCPCB. |
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#1648 | |
diyAudio Member
Join Date: Jun 2003
Location: Ruds Vedby
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Quote:
__________________
What is Home Theatre without good sound? |
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#1649 |
diyAudio Member
Join Date: Aug 2011
Location: London
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I would be interested in buying an assembled DSC2, if anyone has one for sell
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#1650 |
diyAudio Member
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Thanks for the advice guys
I've done a fair amount of surface mount work, been able to solder some fine pitch ic's without bridges or other problems. Most of the parts on the dsc2 don't look bad, its just there are a lot of them and really close together in some places. I'm sure a stencil will help, but I think I going to cheap out and try it buy hand applying the paste. I watched a couple youtube videos and I think I can handle it. Maybe do the resistor boards first for "practice". Since this is a hobby, I can spend time on it but have a limited hobby budget. The parts with the ground pads under the part would worry me, but I'm not planning to use them, will generate a really clean 5V using ultracaps instead.
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My system is here http://randytsuch-audio.blogspot.com/2005/10/my-system.html |
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