Hi

I don't know much about electronics. I have a kenwood ka-5500 amp
which has a problem with the tone on/defeat button. The speakers
crackle when i press it and i have to spend time messing with it to
make it "sit" right otherwise the left speaker goes quiet. Even then
it will move on its own account after time resulting in the same
problem.

I tried some of that fast drying electronic lubricant type stuff
(spray) and that seemed to help a little but it's still a frustrating
problem.

I don't need the bass and treble controls on the amp (happy with a
flat sound) so i was wondering if i was able to disable the switch all
together on the amp whether that would fix the problem. Just a bit
worried about opening up the amp and messing around. Novice here

The headphone jack is very noisy too....a lot of background hiss
noise.

Anyone care to offer some advice?

Mike

Mike wrote:

Hi

I don't know much about electronics. I have a kenwood ka-5500 amp
which has a problem with the tone on/defeat button. The speakers
crackle when i press it and i have to spend time messing with it to
make it "sit" right otherwise the left speaker goes quiet. Even then
it will move on its own account after time resulting in the same
problem.

I tried some of that fast drying electronic lubricant type stuff
(spray) and that seemed to help a little but it's still a frustrating
problem.

I don't need the bass and treble controls on the amp (happy with a
flat sound) so i was wondering if i was able to disable the switch all
together on the amp whether that would fix the problem. Just a bit
worried about opening up the amp and messing around. Novice here

The headphone jack is very noisy too....a lot of background hiss
noise.

Anyone care to offer some advice?

Mike

Hi Mike...

The switch just needs cleaning, not lubricating

Go into whatever the OZ equivalent of Radio Shack is,
buy yourself a spray can of "electronic contact cleaner".

If you don't want to open it up, then try this. Disconnect
it, put a layer of paper towels or waste cloth on the floor.
and prop the machine on it so the know is up. Remove the
know if it's removable just by pulling. Then using the
nozzle that came with the can of cleaner spray a little in,
while working the switch vigorously.

Take care.

Ken

Hi Mike...

The switch just needs cleaning, not lubricating

Go into whatever the OZ equivalent of Radio Shack is,
buy yourself a spray can of "electronic contact cleaner".

If you don't want to open it up, then try this. Disconnect
it, put a layer of paper towels or waste cloth on the floor.
and prop the machine on it so the know is up. Remove the
know if it's removable just by pulling. Then using the
nozzle that came with the can of cleaner spray a little in,
while working the switch vigorously.

Take care.

Ken


Thanks for the quick reply Ken, very helpful

I just had another look at the spray that i used and it turns out that
it's "electronic cleaning solvent-for delicate electronic
components"....i'm assuming this is the right stuff to use. So my
mistake calling it lubricant. Told you i was a novice

Gave it another go doing what you said (what i'd done previously b4)
but this time i opened the case up and was able to get a better
purchase on cleaning the switch (it's not removable). Still got the
problem. But it's behaving a little better now...not as touchy. So
maybe it's not just a cleaning issue?

I can live with the problem...it's just a bit annoying

Thanks again

Mike

On 18 Feb 2005 03:53:10 -0800, (Mike) wrote:


Hi Mike...

The switch just needs cleaning, not lubricating

Go into whatever the OZ equivalent of Radio Shack is,
buy yourself a spray can of "electronic contact cleaner".

If you don't want to open it up, then try this. Disconnect
it, put a layer of paper towels or waste cloth on the floor.
and prop the machine on it so the know is up. Remove the
know if it's removable just by pulling. Then using the
nozzle that came with the can of cleaner spray a little in,
while working the switch vigorously.

Take care.

Ken


Thanks for the quick reply Ken, very helpful

I just had another look at the spray that i used and it turns out that
it's "electronic cleaning solvent-for delicate electronic
components"....i'm assuming this is the right stuff to use. So my
mistake calling it lubricant. Told you i was a novice

Gave it another go doing what you said (what i'd done previously b4)
but this time i opened the case up and was able to get a better
purchase on cleaning the switch (it's not removable). Still got the
problem. But it's behaving a little better now...not as touchy. So
maybe it's not just a cleaning issue?

I can live with the problem...it's just a bit annoying

Thanks again

Mike


If cleaning doesn't work, replace the electrolytic capacitors in the
tone circuit. Chuck

I usually take out the all switches and disassemble to clean up. After, I
apply some protection chemical such as de-oxit or pro-gold.

Eric


"Mike" wrote

in message om...

Hi Mike...

The switch just needs cleaning, not lubricating

Go into whatever the OZ equivalent of Radio Shack is,
buy yourself a spray can of "electronic contact cleaner".

If you don't want to open it up, then try this. Disconnect
it, put a layer of paper towels or waste cloth on the floor.
and prop the machine on it so the know is up. Remove the
know if it's removable just by pulling. Then using the
nozzle that came with the can of cleaner spray a little in,
while working the switch vigorously.

Take care.

Ken


Thanks for the quick reply Ken, very helpful

I just had another look at the spray that i used and it turns out that
it's "electronic cleaning solvent-for delicate electronic
components"....i'm assuming this is the right stuff to use. So my
mistake calling it lubricant. Told you i was a novice

Gave it another go doing what you said (what i'd done previously b4)
but this time i opened the case up and was able to get a better
purchase on cleaning the switch (it's not removable). Still got the
problem. But it's behaving a little better now...not as touchy. So
maybe it's not just a cleaning issue?

I can live with the problem...it's just a bit annoying

Thanks again

Mike

thanks to all that replied to this thread

mike