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From: Jim on 20 Apr 2010 14:32
On 4/20/2010 4:26 AM, N_Cook wrote:
> Sansui Samari<jimjam1942(a)gmail.com> wrote in message
> news:f991ac92-1ceb-4a99-bdd5-c5108f0a2adc(a)h31g2000prl.googlegroups.com...
> On Apr 19, 9:10 am, "N_Cook"<dive...(a)tcp.co.uk> wrote:
>> Is there a problem with the 1/4 inch sockets on these? Especially the
> input
>> one that must take a lot of guitar lead yanking. They are the flimsey
>> domestic, no name, hifi type things and used vertically at floor level so
>> any stage crud gets in them.
>> Intermittant through-signal drop and I cannot induce collectively or
>> individually and will have to check the internals of all 5 pedals plus
>> daisy-chain leads etc. Will probably change that first socket anyway,
>> whatever else found
>
> I'd probably try cleaning them first with contact cleaner or alcohol.
> If they feel loose, I'd change them. Check for bad/broken solder
> joints. Wiggle any internal wires and check for intermittents, or high
> resistances. I haven't worked on one of these, but that's my general
> route when working on something of that nature. Sometimes if it's
> been wet, something spilled in it... the plating can start coming off
> of the contacts on cheap jacks. So maybe check for that...
>
> lllllllllllllllllll
>
>
> Although metal mounting bushes on these sockets, it discuises the fact that
> all behind is flimsey plastic. The one taking the in-use strain had its tip
> contact displaced outwards relative to the other one. Making contact, but
> presumably not reliably under temperature change/ grime etc. I replaced both
> with standard robust plastic bush sockets wired together and space made for
> them , being somewhat larger. And checked the internals of the 3 out of 5
> otherwise suspected pedals, and leads.
>
> Looked inside the board output ones as well, because leads to them could
> have been tripped over at some point.

In my experience... "Bad jacks" in modern gear usually turns out to be
broken solders on printed circuit board mounted jacks. "They don't make
'em like they used to."
From: Sansui Samari on 20 Apr 2010 06:04
On Apr 19, 9:10 am, "N_Cook" <dive...(a)tcp.co.uk> wrote:
> Is there a problem with the 1/4 inch sockets on these? Especially the input
> one that must take a lot of guitar lead yanking. They are the flimsey
> domestic, no name, hifi type things and used vertically at floor level so
> any stage crud gets in them.
> Intermittant through-signal drop and I cannot induce collectively or
> individually and will have to check the internals of all 5 pedals plus
> daisy-chain leads etc. Will probably change that first socket anyway,
> whatever else found

I'd probably try cleaning them first with contact cleaner or alcohol.
If they feel loose, I'd change them. Check for bad/broken solder
joints. Wiggle any internal wires and check for intermittents, or high
resistances. I haven't worked on one of these, but that's my general
route when working on something of that nature. Sometimes if it's
been wet, something spilled in it... the plating can start coming off
of the contacts on cheap jacks. So maybe check for that...
From: N_Cook on 20 Apr 2010 07:26
Sansui Samari <jimjam1942(a)gmail.com> wrote in message
news:f991ac92-1ceb-4a99-bdd5-c5108f0a2adc(a)h31g2000prl.googlegroups.com...
On Apr 19, 9:10 am, "N_Cook" <dive...(a)tcp.co.uk> wrote:
> Is there a problem with the 1/4 inch sockets on these? Especially the
input
> one that must take a lot of guitar lead yanking. They are the flimsey
> domestic, no name, hifi type things and used vertically at floor level so
> any stage crud gets in them.
> Intermittant through-signal drop and I cannot induce collectively or
> individually and will have to check the internals of all 5 pedals plus
> daisy-chain leads etc. Will probably change that first socket anyway,
> whatever else found

I'd probably try cleaning them first with contact cleaner or alcohol.
If they feel loose, I'd change them. Check for bad/broken solder
joints. Wiggle any internal wires and check for intermittents, or high
resistances. I haven't worked on one of these, but that's my general
route when working on something of that nature. Sometimes if it's
been wet, something spilled in it... the plating can start coming off
of the contacts on cheap jacks. So maybe check for that...

lllllllllllllllllll


Although metal mounting bushes on these sockets, it discuises the fact that
all behind is flimsey plastic. The one taking the in-use strain had its tip
contact displaced outwards relative to the other one. Making contact, but
presumably not reliably under temperature change/ grime etc. I replaced both
with standard robust plastic bush sockets wired together and space made for
them , being somewhat larger. And checked the internals of the 3 out of 5
otherwise suspected pedals, and leads.

Looked inside the board output ones as well, because leads to them could
have been tripped over at some point.





From: Chris Tansit on 20 Apr 2010 09:59
N_Cook said...
>Is there a problem with the 1/4 inch sockets on these?

If they are noname consider them a consumable they will fail
eventually with use. You could use switchcraft jacks which are
known to be reliable. On their website
"leading manufacturer of harsh environment connectors"

If the plastic has give you could see if you can fabricate a plate
to fit behind and reinforce it.


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