RE: PTR2 Humming sound through headphones when connected to mains
- From: "Steve Nutt" <steve@xxxxxxxxxxxxxx>
- To: <ptr1-users@xxxxxxxxxxxxx>
- Date: Tue, 24 Apr 2007 13:23:01 +0100
Hi Judy,
I agree that Neither the PTR1 or PTR2 are at all well screened on the mains.
Considering the amount you pay for them, it's a shame they use cheap
components like the power supply to let it down.
All the best
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-----Original Message-----
From: ptr1-users-bounce@xxxxxxxxxxxxx
[mailto:ptr1-users-bounce@xxxxxxxxxxxxx] On Behalf Of Judy W
Sent: 24 April 2007 00:25
To: ptr1-users@xxxxxxxxxxxxx
Subject: RE: PTR2 Humming sound through headphones when connected to mains
Yes and the jones I've seen hum on battery. Go figure. I wish the company
would admit they have a problem.
I've used the Victor and it doesn't hum, but in my opinion the battery life
is shorter.
Judy
-----Original Message-----
From: ptr1-users-bounce@xxxxxxxxxxxxx
[mailto:ptr1-users-bounce@xxxxxxxxxxxxx]On Behalf Of Ankers, Dave (UK)
Sent: Monday, April 23, 2007 11:45 AM
To: ptr1-users@xxxxxxxxxxxxx
Subject: RE: PTR2 Humming sound through headphones when connected to
mains
Judy,
The humming can be heard with the unit turned off and connected to the
mains, try it.
Regards,
Dave Ankers
I am now hearing hum through the speaker of the ptr2 and my friend has
just the player and is getting hum through speaker and headphones. It's
not very loud, but is definitely there...
Can hear it when reading books.
Judy
-----Original Message-----
From: ptr1-users-bounce@xxxxxxxxxxxxx
[mailto:ptr1-users-bounce@xxxxxxxxxxxxx]On Behalf Of Judy W
Sent: Thursday, March 15, 2007 4:28 AM
To: ptr1-users@xxxxxxxxxxxxx
Subject: RE: PTR2 Humming sound through headphones when connected to
mains
Sounds like a grounding problem on your side...
Judy
-----Original Message-----
From: ptr1-users-bounce@xxxxxxxxxxxxx
[mailto:ptr1-users-bounce@xxxxxxxxxxxxx]On Behalf Of Ankers, Dave (UK)
Sent: Thursday, March 15, 2007 4:00 AM
To: ptr1-users@xxxxxxxxxxxxx
Subject: PTR2 Humming sound through headphones when connected to mains
Hi all,
When I connect my PTR2 to the mains I hear a humming noise through the
headphones(Bose noise reduction). If I plug in my external mic(Sony
ECMMS907) and touch the metal, the humming stops. The same happens if I
plug in a double ended line in lead and touch that.
I also use a Re-tel Intelligent recording interface to record telephone
conversations. When this device is used with the mains connected to the
PTR2, there is a loud buzzing on the phone which is even louder on the
other end. Once the mains is disconnected from the PTR2, no humming or
buzzing can be heard.
I have returned the unit to the RNIB, and they tested it but could not
hear any humming through the headphones(Standard headphones). I have
also tested Brian Hartgen's PTR2 and that does exactly the same as mine.
It is a shame to have to disconnect the mains when using the unit, has
anyone else experienced this?
Regards,
Dave Ankers
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