PRS-600 noise - Page 2

wachuko · 02-01-2010, 10:02 AM

No noise here from mine... get it replaced asap.

billy12 · 02-25-2010, 10:42 AM

Mine makes a noise when I touch the screen. If you can hear it, I doubt that exchanging the unit will make any difference.

Gatecra5her · 02-26-2010, 08:38 PM

When I had my 600 it definitely made this noise, I noticed it and pointed it out to my girlfriend who could hear it also. The noise is extremely low volume and I think it may be a result of the resistive screen's workings, though I'm not sure. I don't think it's anything to worry about though.

The noise occured when I used my finger or the stylus.

omk3 · 03-04-2010, 07:09 AM

The noise is there, but what do you know, I've had it for months and I only noticed last night. Maybe the house was unusually quiet last night, because I can see no reason why the noise would have started just yesterday. Once you notice it, you can't help being aware of it. I believe it's normal but the sound is too low to notice even in moderately quiet surroundings. It did freak me out a little of course

georget99 · 03-04-2010, 08:02 AM

I'm assuming the sound is coming from the reader, not headphones, and the '600 does not have a built in speaker or beeper.

Googling around, it looks like the eInk display needs 15 volts to change what's displayed. With a 5.2 volt charging voltage, there's probably just a single 3.7 volt LiIon cell powering the reader, so there must be a DC-DC converter in there to step up the voltage. Typical (all?) converters like that use a transformer/inductor and depending on how well it's potted and how it's mounted, it certainly can be a source of audible noise.

Perhaps it's very near the display on some units and touching brings the screen into contact with the transformer and makes it audible.

Just my pre-coffee ramblings, please ignore.

ebioman · 04-30-2010, 10:48 AM

Hi
I read this thread already before and wondered about any noise

Afterwards I did realize when it was perfectly calm that I would here it when I kept flipping through pages (fast forward).
I unfortunately had the fading problem and therefore sent my device back.

Now, today my new one arrived and guess what, it makes the sound almost all the time I touch the display

One question: I assume most people kept theirs and did not sent it back due to the clicking. Did it become worse, or did your device even crash ?

Otherwise I would tend to hope that I got rid of the fading (Cloudy day today in Switzerland ) and live with the noise....

Wulf · 07-08-2010, 10:12 PM

Whenever I hear someone say their battery drains too fast, the first thing I think of is that they may not know how to actually shut the reader down completly. Lots of people think they are shutting the reader off, when they slide the Power button to the right, but as we all know, (hint, hint) sliding the button to the right momentarly, only pous the reader into "SleepMode". In sleep mode, the reader will use battery power for about 5 days then it powers off. To shut the reader down fully, you must slide the button to the right AND hold it to the right for 3+ seconds. You will get a screen message that asks if you really want to shut thr reader down. Just say yes.

Mom

bugeyed · 07-08-2010, 10:40 PM

My PRS-600 is quiet. Acoustically & electrically with very isolating canal phones. I tried the continuous page turn & also with the edit notes function enabled. Nothing, nada, silent. Mine doesn't exhibit the sun fade phenomenon either. Hmmm I wonder if there's a correlation between those two defects???
The noise may be widespread, but it's not right.

Cheers,
kev

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02-01-2010, 10:02 AM	#16
wachuko eBook Worm Posts: 205 Karma: 2745996 Join Date: Jul 2009 Location: Orlando, FL Device: Kindle Paperwhite/ Sony PRS-505/PRS-600 Silver/PRS-T1	No noise here from mine... get it replaced asap.

02-25-2010, 10:42 AM	#17
billy12 Junior Member Posts: 4 Karma: 10 Join Date: Feb 2010 Device: PRS-900	Mine makes a noise when I touch the screen. If you can hear it, I doubt that exchanging the unit will make any difference.

02-26-2010, 08:38 PM	#18
Gatecra5her Enthusiast Posts: 46 Karma: 36 Join Date: Feb 2010 Location: England, UK Device: Sony PRS-600	When I had my 600 it definitely made this noise, I noticed it and pointed it out to my girlfriend who could hear it also. The noise is extremely low volume and I think it may be a result of the resistive screen's workings, though I'm not sure. I don't think it's anything to worry about though. The noise occured when I used my finger or the stylus.

03-04-2010, 07:09 AM	#19
omk3 Wizard Posts: 1,454 Karma: 37243 Join Date: Dec 2009 Location: Europe Device: pocketbook 360, kindle 4	The noise is there, but what do you know, I've had it for months and I only noticed last night. Maybe the house was unusually quiet last night, because I can see no reason why the noise would have started just yesterday. Once you notice it, you can't help being aware of it. I believe it's normal but the sound is too low to notice even in moderately quiet surroundings. It did freak me out a little of course

03-04-2010, 08:02 AM	#20
georget99 Member Posts: 12 Karma: 10 Join Date: Feb 2010 Location: Cape Cod Device: PRS-300	I'm assuming the sound is coming from the reader, not headphones, and the '600 does not have a built in speaker or beeper. Googling around, it looks like the eInk display needs 15 volts to change what's displayed. With a 5.2 volt charging voltage, there's probably just a single 3.7 volt LiIon cell powering the reader, so there must be a DC-DC converter in there to step up the voltage. Typical (all?) converters like that use a transformer/inductor and depending on how well it's potted and how it's mounted, it certainly can be a source of audible noise. Perhaps it's very near the display on some units and touching brings the screen into contact with the transformer and makes it audible. Just my pre-coffee ramblings, please ignore.

04-30-2010, 10:48 AM	#21
ebioman Enthusiast Posts: 31 Karma: 10 Join Date: Apr 2010 Location: Switzerland Device: Kindle 3	Hi I read this thread already before and wondered about any noise Afterwards I did realize when it was perfectly calm that I would here it when I kept flipping through pages (fast forward). I unfortunately had the fading problem and therefore sent my device back. Now, today my new one arrived and guess what, it makes the sound almost all the time I touch the display One question: I assume most people kept theirs and did not sent it back due to the clicking. Did it become worse, or did your device even crash ? Otherwise I would tend to hope that I got rid of the fading (Cloudy day today in Switzerland ) and live with the noise....

07-08-2010, 10:12 PM	#22
Wulf Member Posts: 5 Karma: 10 Join Date: Jul 2010 Location: Connecticut, USA Device: Sony PRS-600	Whenever I hear someone say their battery drains too fast, the first thing I think of is that they may not know how to actually shut the reader down completly. Lots of people think they are shutting the reader off, when they slide the Power button to the right, but as we all know, (hint, hint) sliding the button to the right momentarly, only pous the reader into "SleepMode". In sleep mode, the reader will use battery power for about 5 days then it powers off. To shut the reader down fully, you must slide the button to the right AND hold it to the right for 3+ seconds. You will get a screen message that asks if you really want to shut thr reader down. Just say yes. Mom

07-08-2010, 10:40 PM	#23
bugeyed Connoisseur Posts: 64 Karma: 30 Join Date: Jun 2010 Device: Kobo 2, PRS-600	My PRS-600 is quiet. Acoustically & electrically with very isolating canal phones. I tried the continuous page turn & also with the edit notes function enabled. Nothing, nada, silent. Mine doesn't exhibit the sun fade phenomenon either. Hmmm I wonder if there's a correlation between those two defects??? The noise may be widespread, but it's not right. Cheers, kev

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