Speaker drive unit replacement.
 

"David"

I'm fairly sure it's a 2x40 watts RMS amplifier but we haven't found the
handbook yet.

** Got eyeballs ??

The piano is in everyday use so I was hoping that Panasonic would be able
to tell me the spec of the speaker before I dismantle it.

** Wot a ****WIT !!!

I shall open it up and have a look.

** Watch out for all the creepy crawlies....



..... Phil

Speaker drive unit replacement.
 

Ah a person who is tactful insightful and calm obviously, you should be in
customer services.
Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Phil Allison" wrote in message
...

"David"

I'm after a replacement drive unit for a Technics PX20 electric piano and
am not getting very far with Panasonic. They have told me that the part
number is EAS16PL403A and that it is no longer available and there is no
replacement part. Admittedly the Piano was bought in 1989 so I'm not
surprised that they don't have spares.

Does anybody here know of a replacement that I could try (I'd obviously
replace both not just the blown one)?

Alternatively what details do I ask Panasonic for regarding the
specification of the speaker?

Full range or not?
Impedance?
Size?
Sensitivity?
Anything else?



** You a total ****ing moron ????

YOU have got two example speakers and so YOU know the answers to your
first three questions.

The folk at Panasonic spares have no examples and hence no bloody idea.

We have no idea either for the same bloody obvious reason.




... Phil

Speaker drive unit replacement.
 

"Brian Gaff"

Ah a person who is tactful insightful and calm obviously, you should be in
customer services.

** I am. I run my own business.

Fools with damn silly questions on the phone get a good earful.

Had one today.

Wanted to know the cost of a 120V to 240V internal conversion in some
obscure USA amp he just bought on eBay.

Over the phone.

Strewth !!


.... Phil

Speaker drive unit replacement.
 

In article , David


Thank you Ken, that's fantastic. I'll have a listen to see which speaker
has blown (assuming it is a speaker), but at least it's not stereo so
only need to replace one. Will let you all know how I get on.

Erm... You now say *assuming* it is a speaker. Whereas you initially said
it *was*.

What are the actual symptoms, and what makes you think it is a *speaker* as
distinct from, say, a broken wire in the unit or a blow amp (or its fuse)
or various other possibly problems?

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Speaker drive unit replacement.
 

"Jim Lesurf" wrote in message
...
In article , David


Thank you Ken, that's fantastic. I'll have a listen to see which speaker
has blown (assuming it is a speaker), but at least it's not stereo so
only need to replace one. Will let you all know how I get on.

Erm... You now say *assuming* it is a speaker. Whereas you initially said
it *was*.

What are the actual symptoms, and what makes you think it is a *speaker*
as
distinct from, say, a broken wire in the unit or a blow amp (or its fuse)
or various other possibly problems?


I'm not 100% that it's the speaker but it sounds like a bass drive unit
fault. It buzzes at certain frequencies. The drive units still work. I'm
not sure how to diagnose what it actually is without replacing various bits.

I'll have a listen tonight to see if I get a better idea.
How would I tell whether it's an amp or speaker problem?

Thank you

David

Speaker drive unit replacement.
 

"Phil Allison" wrote in message
...
"David"

I'm after a replacement drive unit for a Technics PX20 electric piano
and am not getting very far with Panasonic. They have told me that
the part number is EAS16PL403A and that it is no longer available and
there is no replacement part. Admittedly the Piano was bought in
1989 so I'm not surprised that they don't have spares.

Does anybody here know of a replacement that I could try (I'd
obviously replace both not just the blown one)?

Alternatively what details do I ask Panasonic for regarding the
specification of the speaker?

Full range or not?
Impedance?
Size?
Sensitivity?
Anything else?

** You a total ****ing moron ????

Well for now let's assume so.


** No assumption needed here, folks.


Well I assumed that your comment was a grammatically incorrect question due
to the question marks. If you knew the answer then it should have been a
comment.
If you're not sure of the difference or how to reconstruct your comment then
please feel free to ask.


YOU have got two example speakers and so YOU know the answers to
your first three questions.

The folk at Panasonic spares have no examples and hence no bloody idea.


Well I thought that maybe as they designed the piano ...

** ROTFLMAO !!!

The spare parts gal or dude is now the **designer ** ???

Think some guy in Japan or Taiwan has that title.

When I design a sprinkler system, the company I work for designed the system
as I work for them. The design belongs to the company that I work for and
all of the drawings and calculations belong to them.
Is this different at Panasonic/Technics?
I was unaware of this, if it is so.
Just out of curiosity, what makes you think that I spoke to the spare parts
department?

We have no idea either for the same bloody obvious reason.


Which is why I asked which information I need to get a suitable
replacement.


** My god you really are a LIVE ONE !!


Can't we get you on Mastermind, Phil?
Next contestant - Phil Allison from uk.rec.audio.
Specialist subject - Stating the bleedin' obvious.

--
David

Speaker drive unit replacement.
 

In article , David
wrote:
"Jim Lesurf" wrote in message
...


What are the actual symptoms, and what makes you think it is a
*speaker* as distinct from, say, a broken wire in the unit or a blow
amp (or its fuse) or various other possibly problems?


I'm not 100% that it's the speaker but it sounds like a bass drive unit
fault. It buzzes at certain frequencies. The drive units still work.
I'm not sure how to diagnose what it actually is without replacing
various bits.

The 'buzzing' you report is useful as a symptom. It rules out various
things which other behaviour might have caused. The speaker being damaged
sounds plausible, although it might perhaps be something else like a poor
connection rattling or a loose wire against the cone.

If you'd said the speaker had fallen silent, then it might have been a
broken connection or an amp or channel fuse failure. 'Buzzing' might still
be the amp. But the speaker is a better bet I'd think.

I'll have a listen tonight to see if I get a better idea. How would I
tell whether it's an amp or speaker problem?

If the unit is 'stereo' (has two sets of speakers and two amps in this
case) you can check by swapping over the connections so that which amp
drives which channel is swapped. If the symptoms stay with the speaker, it
points to a speaker problem. If they follow the amp, an amp problem.

However the 'buzz' does seem like a speaker problem.

You might find it is a loose wire that can be reconnected or moved to avoid
it touching the cone of the speaker. You may even find that rotating the
speaker top-bottom will help if the speaker unit has 'sagged' under
gravity. If there is no obvious mechanical damage such experiments might be
worth a try. If they work, good. If not, you are no worse off for trying.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

David is a LIVE ONE
 

"David"
"Phil Allison"
"David"

** You a total ****ing moron ????

Well for now let's assume so.


** No assumption needed here, folks.


Well I assumed that your comment was a grammatically incorrect question

** LOL !!!

You are one pompous, assuming ass.

And an illiterate one at that.




Well I thought that maybe as they designed the piano ...

** ROTFLMAO !!!

The spare parts gal or dude is now the **designer ** ???

Think some guy in Japan or Taiwan has that title.

When I design a sprinkler system,


** What does it sprinkle ??

Fairy dust, by any chance ???

The fairies and goblins at the bottom of your garden are having a real hoot
right now.

Cos the house is occupied by a GIANT tu tu wearing fairy.



** My god you really are a LIVE ONE !!


Can't we get you on Mastermind, Phil?
Next contestant - Phil Allison from uk.rec.audio.
Specialist subject - Stating the bleedin' obvious.


** Least the ****ing idiot admits he is a LIVE ONE !!

The entertainment never stops here folks.....




..... Phil

David is a LIVE ONE
 

"Phil Allison" wrote in message ...
The entertainment never stops here folks.....

One does one's best to please.
--
David

Speaker drive unit replacement.
 

"Jim Lesurf"

The 'buzzing' you report is useful as a symptom. It rules out various
things which other behaviour might have caused. The speaker being damaged
sounds plausible, although it might perhaps be something else like a poor
connection rattling or a loose wire against the cone.


** If you were a service tech Jim, you would FIRST suspect a foreign
object.

It's an electric piano - so the speakers typically face upwards through a
slotted grille that small objects can fall through.

Makes a nasty distorted sound that is very level and note dependant.

Occam's Razor rules...........




..... Phil