Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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neilish
 
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Default strange aerial?

am working on a fender passport p150 stereo mini pa system which fender
wont service because it is out of warranty. fender never intended to
fix this item cause it took me 2 hrs to take appart and all the
connectors are glued on. in takeing this appart i came accross a
screened cable coming out of the screened box which contains the
electronics ( i have a shorted output transistor and shorted positive
supply and the switch mode power supply keeps on trying to start giving
a fart in the speaker of the channel which is still working) anyway its
a cert ive got blown output transistors on at least one side but the
thing is what is this screened cable coming out of the box and
connected to a piece of wire which sits encapsulated in plastic inside
the handle of the mixer unit. are we supposed to believe it senses the
electromagnetic field of the room and performs some kind of subraction
from the output for hum cancelling- or is it a tamper proof device to
check for voided warranty - any guesses? - unit is out of warranty and
fender refused to service it anyway!

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Arfa Daily
 
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Default strange aerial?


"neilish" wrote in message
oups.com...
am working on a fender passport p150 stereo mini pa system which fender
wont service because it is out of warranty. fender never intended to
fix this item cause it took me 2 hrs to take appart and all the
connectors are glued on. in takeing this appart i came accross a
screened cable coming out of the screened box which contains the
electronics ( i have a shorted output transistor and shorted positive
supply and the switch mode power supply keeps on trying to start giving
a fart in the speaker of the channel which is still working) anyway its
a cert ive got blown output transistors on at least one side but the
thing is what is this screened cable coming out of the box and
connected to a piece of wire which sits encapsulated in plastic inside
the handle of the mixer unit. are we supposed to believe it senses the
electromagnetic field of the room and performs some kind of subraction
from the output for hum cancelling- or is it a tamper proof device to
check for voided warranty - any guesses? - unit is out of warranty and
fender refused to service it anyway!


This amplifier system is wireless enabled. There is a range of wireless
accessories that can be used with it. The screened box contains the
receiver, and the wire that comes out of it, is the antenna for that
receiver ...

Arfa


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neilish
 
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Default strange aerial?


This amplifier system is wireless enabled. There is a range of wireless
accessories that can be used with it. The screened box contains the
receiver, and the wire that comes out of it, is the antenna for that
receiver ...

Arfa


yeah could be that would explain it - thanks - neilish

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Ron(UK)
 
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Default strange aerial?

Arfa Daily wrote:
"neilish" wrote in message
oups.com...

am working on a fender passport p150 stereo mini pa system which fender
wont service because it is out of warranty. fender never intended to
fix this item cause it took me 2 hrs to take appart and all the
connectors are glued on. in takeing this appart i came accross a
screened cable coming out of the screened box which contains the
electronics ( i have a shorted output transistor and shorted positive
supply and the switch mode power supply keeps on trying to start giving
a fart in the speaker of the channel which is still working) anyway its
a cert ive got blown output transistors on at least one side but the
thing is what is this screened cable coming out of the box and
connected to a piece of wire which sits encapsulated in plastic inside
the handle of the mixer unit. are we supposed to believe it senses the
electromagnetic field of the room and performs some kind of subraction
from the output for hum cancelling- or is it a tamper proof device to
check for voided warranty - any guesses? - unit is out of warranty and
fender refused to service it anyway!



This amplifier system is wireless enabled. There is a range of wireless
accessories that can be used with it. The screened box contains the
receiver, and the wire that comes out of it, is the antenna for that
receiver ...

Arfa



There`s all sorts of odd wires dangling about inside those nasty things,
if it`s not the wireless version, in might be just the wiring that would
go there if it was - if you see what I mean. I've got one (a 250 - psu
suicide) in front of me now with a grey screened cable hanging loose,
with sleeving over the free end which I presume is normal. There's also
a concealed D connector with some unused wiring taped inside.


Ron(UK)

--
Lune Valley Audio
Public address system
Hire, Sales, Repairs
www.lunevalleyaudio.com
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