Re: SB4000 Support Thread Parts Missing/incorrect?
« Reply #1560 on: February 13, 2021, 08:07:21 AM »
(Edit: To prevent any confusion, I got the full parts kit with the PCB from Serpent. However, this was last year, and I understand they don't offer the full parts kit anymore. But yeah, just to clarify that I didn't make a mistake when ordering parts haha, if that was the case I wouldn't have posted.)

Hey, I don't know if anyone else has experienced similar issues, but there seem to be some components missing from my kit, or the values seem to be off. (I got it last year but have only got round to building it now.) For instance I have one 10k trim pot left over but I'm missing a 5k one.. Also, I'm missing one of the ICs for my Quad VCA (NE534). I ordered these parts myself, which aren't expensive but, the shipping has added up to quite a bit overall (seeing at every stage I discovered there was another thing missing, after which I ordered them. I guess I could have waited until I installed everything, but I didn't expect this many missing components at every stage (also a few resistors). I also noticed after just installing the control pcb onto the faceplate, that the switches and pots have totally different heights..? I can dremel these I guess, but I haven't seen any other builds with mismatched switches and pots. ( I did raise the pots with the Thresh/Gain adapter board of course, but the main switches stick out, SEE LINK FOR PHOTO).

I was also wondering about the 100R resistor on the back of the control pcb, which the build manual suggests should be mounted vertically, but I didn't get the black vertical resistor I have seen in other photos, so I just used a big regular 100r one I did get. Will this be a problem?

(Btw I am aware of the missing sockets for some chips, this is my own mistake of course, as I thought the manual said ICS, not IC sockets first... haha : )



Photos:

https://www.dropbox.com/sh/ca1w28djgrw27q8/AAAyjVNejaclBHKxsRpponfba?dl=0
« Last Edit: February 13, 2021, 01:34:47 PM by Barrylime »


JMan

Re: SB4000 Support Thread
« Reply #1561 on: February 13, 2021, 12:41:38 PM »
Did you check your order status to see if any of the components you purchased were back ordered?  Assuming you were attentive in putting your cart together, that’s the only reason I can think of for missing items. 

As for incorrect values, unfortunately, the most likely culprit is you.  There are lots of components and it’s not unreasonable to think that you overlooked a detail here and there (no judgement, it’s happened to all of us).  A couple other thoughts to consider, though:
- Double check your component values.  56R and .56K and 56K are easy to confuse.
- Note the changes to the main board required with the quad VCA.

Re: the length of the shafts of your switches, you simply need to cut them to the proper length.  You can use the length of your pots’ shaft as a reference.

As for the control board resistor, the type that you bought is fine.  You could have still mounted it vertically, which would have helped with spacing and perhaps better heat dissipation (a little less heat hitting the IC next to it maybe), but as long as you can get the Molex wire connection seated properly there, you’re probably just fine.

Re: SB4000 Support Thread
« Reply #1562 on: February 13, 2021, 01:33:00 PM »
Did you check your order status to see if any of the components you purchased were back ordered?  Assuming you were attentive in putting your cart together, that’s the only reason I can think of for missing items. 

As for incorrect values, unfortunately, the most likely culprit is you.  There are lots of components and it’s not unreasonable to think that you overlooked a detail here and there (no judgement, it’s happened to all of us).  A couple other thoughts to consider, though:
- Double check your component values.  56R and .56K and 56K are easy to confuse.
- Note the changes to the main board required with the quad VCA.

Re: the length of the shafts of your switches, you simply need to cut them to the proper length.  You can use the length of your pots’ shaft as a reference.

As for the control board resistor, the type that you bought is fine.  You could have still mounted it vertically, which would have helped with spacing and perhaps better heat dissipation (a little less heat hitting the IC next to it maybe), but as long as you can get the Molex wire connection seated properly there, you’re probably just fine.


Hi JMan thanks for the reply. I didn't order any parts myself, I bought a complete kit (including parts) from Serpent. As I mentioned I bought it early last year, but only assembled it now. I just checked their website and they don't offer the full kit anymore, only the PCB, perhaps explaining why you thought I got the parts myself (I also recall someone at serpent saying they were cancelling the kit soon, when I first emailed them before buying about 1 year ago).


Thanks for your time & reply!

JMan

Re: SB4000 Support Thread
« Reply #1563 on: February 13, 2021, 03:05:15 PM »

Hi JMan thanks for the reply. I didn't order any parts myself, I bought a complete kit (including parts) from Serpent. As I mentioned I bought it early last year, but only assembled it now. I just checked their website and they don't offer the full kit anymore, only the PCB, perhaps explaining why you thought I got the parts myself (I also recall someone at serpent saying they were cancelling the kit soon, when I first emailed them before buying about 1 year ago).


Thanks for your time & reply!

Ah, you know what, I saw the part in your first post that said "I ordered these parts myself" and I just mistook it to mean all of the parts rather than just the missing ones.  (I need to get more sleep lol)

It's weird that the kit would have had wrong values and missing components.  The first one of these that I built was from his complete kit, and I didn't have that issue.  Bad luck...

Anyway, hope those other answers were helpful.

Re: SB4000 Support Thread
« Reply #1564 on: February 16, 2021, 06:34:57 AM »
Yeah I guess it's bad luck. I got it almost a year ago and it has just been sitting in the box until now, so it's a bit late to complain about missing parts with the seller I guess. I was just wondering if others have had the same issue. It's mainly annoying that the one IC chip is missing. I bought another NE5543AP (that's the name/model rom the top of my head), but the top line of text on that chip is different. I don't know if this will be a problem? So it also says NE5543AP but the top line text is different basically, is this just the brand/ factoy code or something??



Ah, you know what, I saw the part in your first post that said "I ordered these parts myself" and I just mistook it to mean all of the parts rather than just the missing ones.  (I need to get more sleep lol)

It's weird that the kit would have had wrong values and missing components.  The first one of these that I built was from his complete kit, and I didn't have that issue.  Bad luck...

Anyway, hope those other answers were helpful.

JMan

Re: SB4000 Support Thread
« Reply #1565 on: February 16, 2021, 09:56:49 AM »
So it also says NE5543AP but the top line text is different basically, is this just the brand/ factoy code or something??

Yes, you’ll be fine with that one.  If you are really worried, you can always go compare the data sheets, but I would be very surprised if you found any meaningful discrepancies.


 

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