Noise issue 2016 SG Std T

charriman

New Member
Joined
Jun 10, 2016
Messages
14
Reaction score
10
Perhaps a grounding issue? Noisy when my hands are off of the strings. Goes away when i touch the strings/tailpiece/bridge etc.
I checked continuity with my mulitimeter between the tailpiece and the sleeve of the output jack.
That seems to be ok. The other issue is that both of the volume pots are scratchy when turned and the switch is a little noisy as well.
Any ideas? Thanks!
 

donepearce

Well-Known Member
Joined
Dec 12, 2012
Messages
5,016
Reaction score
4,384
Location
London, new hearing aid project - exciting
You need to screen the control cavity. What is happening is this. You body is acting as a giant "antenna" for want of a better word. It is coupling the noise into the live wiring of the control cavity just by its proximity. When you touch the strings, you are grounding your body. It is then not an antenna.

To verify if this is the case. Rest the guitar some way from your bady, ojn a table maybe. Do you still hear the noise? Touch the strings. Does it go away? If the noise is only evident when the guitar is close to you, this is the issue.

If not, come back and we can have another go.

Volume pots and switch will probably respond to some electronic cleaning fluid.
 

Col Mustard

Well-Known Member
Joined
Sep 29, 2009
Messages
8,194
Reaction score
8,352
Location
Tucson AZ
+1 on that. An excellent suggestion. But I believe all the 2016s have
the PCB board...

If the guitar is new, then it's under warranty and should be examined by an authorized
Gibson warranty-work shop, and repaired there if necessary. (they will pull out the PCB and
install another one that doesn't make noise).

If you bought the guitar used, then it's your problem to solve. Here's how:
First check the cable by replacing that.
Next check the amp by plugging into something else.
Next, follow Don's instructions above...

If your buzz persists and your pots are scratchy, I'd simply remove the whole PCB board
and install a good wiring harness, made the traditional way. Or look to see if someone else
is offering a drop-in replacement PCB. Players mostly hate those, and many of us just
pull them out and replace with good quality parts.

Here's a wiring harness assembled by Sigler Music for fifty bucks:
http://www.siglermusiconline.com/pr...arness-cts-500k-pots-switchcraft-pio-caps-new

I ordered one from here for my Epiphone ES-339, and am very happy with it. You can spend a little less
and do all the labor yourself, but this seems like a pretty good deal to me. You can spend more on harness
from other outfits, and I have done so, but I like what I got from Sigler, so recommend it.

The advantage of the PCB board (as I see it) is the quick connectors for the pickups and
the supposed reliability of the manufactured unit. But I don't own one in any of my guitars.
The disadvantage for players like us is that once you have a problem, you might as well
yank it all out and replace the whole shebang, rather than replacing one scratchy pot.

Every player should read and keep this book: "How to make your Electric Guitar Play Great"
by Dan Erlewine. This tells you most of what you need to know and shows you with great
illustrations. Highly recommended.

Every member of this forum should own this video:
http://www.stewmac.com/How-To/DVD/How_to_Wire_a_Gibson_Guitar_DVD.html
This shows you step by step how Dan goes bout replacing wiring on a Gibson guitar, and
I've used it myself when I was learning. Very informative and clear.

Good luck!
 

Biddlin

Well-Known Member
Joined
Jul 11, 2012
Messages
12,063
Reaction score
10,177
Location
-
If it's under warranty, see the Gibson dealer.
 

charriman

New Member
Joined
Jun 10, 2016
Messages
14
Reaction score
10
i was hoping to avoid a warranty call. but one more question? Would scratchiness in both volume pots be caused by a grounding issue as well? i'd kind of doubt they were both dirty as the scratchiness on both is within the first 1/3 of a turn.
 

syscokid

Well-Known Member
Joined
Sep 15, 2012
Messages
2,990
Reaction score
2,292
Location
Groovy Beach, CA
Welcome to ETSG. Don't beat yourself over this and handle this as a warranty issue. Probably somewhere in the pcb and it's components were damaged during assembly. How's the rest of the guitar?
 

charriman

New Member
Joined
Jun 10, 2016
Messages
14
Reaction score
10
rest of the guitar is fine. i really like it. Just this issue is making me batty. ;-)
 

Biddlin

Well-Known Member
Joined
Jul 11, 2012
Messages
12,063
Reaction score
10,177
Location
-
rest of the guitar is fine. i really like it. Just this issue is making me batty. ;-)
If you are in the contiguous 48 states, call their customer service number. They may just send you a new pcb in the post, or refer you to your local shop for repair. It is literally a 10 minute swap, even for an old arthritic klutz.
 

Col Mustard

Well-Known Member
Joined
Sep 29, 2009
Messages
8,194
Reaction score
8,352
Location
Tucson AZ
yes, the quick change connectors should help in this situation.

But Don's suggestion of some DeOxit sprayed into the pots might help that situation --and would do
no harm... So it's worth a try, and worth having some around. Pots are
not complicated, they are 19th century technology I believe. You can get the stuff at Radio Shack
or maybe some guitar stores. It does help, I've used it multiple times.

The ground buzz should NOT be there. I own two SGs and they make no noise. One's got stock
wiring (but no PCB) and one's got a replacement harness. You should not have to put up with that.
I'd invoke Gibson's warranty before it expires.
 

charriman

New Member
Joined
Jun 10, 2016
Messages
14
Reaction score
10
Here is a pic as requested :-) I'll start with trying to clean the pots and messing with the connectors as the closest "authorized" warranty service center is about an hour away. That's why i'd rather try to remedy it myself before taking that route.
IMG_0117.jpg
 

syscokid

Well-Known Member
Joined
Sep 15, 2012
Messages
2,990
Reaction score
2,292
Location
Groovy Beach, CA
Here is a pic as requested :-) I'll start with trying to clean the pots and messing with the connectors as the closest "authorized" warranty service center is about an hour away. That's why i'd rather try to remedy it myself before taking that route.
IMG_0117.jpg
That's understandable. Well then... Shoot contact cleaner into the 3-way switch, too. Look for any warpage from the pcb. With the SG plugged into a live amp, with a non-conductive source like a wooden skewer, start applying pressure and tapping all over the pcb and all the components: pots, switch, jack, little-crappy ceramic caps, pup wires, and tailpiece ground wire.

Unplug all the connectors, and shoot the cleaner into the male and female ends... (unleash the jokes, now)

How's your soldering skills?
 

charriman

New Member
Joined
Jun 10, 2016
Messages
14
Reaction score
10
i can solder pretty well. But, if i can solve it without breaking the weller out, i'd prefer that route. i'm going to try the contact cleaner route first.
 

SGspecial

Well-Known Member
Joined
Feb 28, 2012
Messages
323
Reaction score
266
I had the exact same problem. To make a long story short, I ended up removing the PCB and replacing everything with quality components. The 2016 SG Std T is a good guitar for the money, but every manufacturer has to use shortcuts when the bean counters tell them it has to sell at a certain price point.

Here's the problem:

EVIL!
DSCN0911_zpsyasjntre.jpg


The money spent was well worth it to me. This guitar NOW is one of the best guitars I've owned.
 

flatrockmobile

Well-Known Member
Joined
Jan 14, 2009
Messages
460
Reaction score
279
Location
Douglasville, GA
Before you do anything, do the warranty thing. If they have to pay for enough repairs of this sort, then they should alter their processes at the factory level.
A soldering iron would surely void the warranty.
Welcome and keep us posted.
 


Latest posts

Top