Does the Sony PRS-505 require a special charger? - Page 2

JSWolf · 02-02-2017, 02:17 PM

Quote:

Originally Posted by radius

Second, mini-USB cables are no longer as common as they used to be. And even if you have one, as JSWolf notes, it may not work. In the early days of charging via micro USB, many devices needed to be plugged into either a computer, or their proper charger in order to work, depending on implementation. Often generic cables and generic chargers didn't work (I think the Motorola RAZR phone was like this too, now that I think about it).

The cable is not an issue. It the USB charger that's the issue. For a USB charger to work, it has to be USB spec. Most are not. They are Apple spec which doesn't work with a Sony Reader. So using the PSP charger is just easier then trying to find a USB charger that works that's not a Sony brand.

Ghitulescu · 02-03-2017, 02:53 AM

I remember once that I did an USB bypass cable, shunting the data wires by 100 or 200 ohm SMD resistor, to charge I do not recall what appliance from a battery. Maybe this lacks in an Apple charger.

radius · 02-04-2017, 08:59 AM

I'm fairly certain that in the early days, there were charge-only, data-only, and dual use cables.

JSWolf · 02-04-2017, 11:42 AM

Quote:

Originally Posted by radius

I'm fairly certain that in the early days, there were charge-only, data-only, and dual use cables.

Yes, but they were Apple 3rd party cables.

Ghitulescu · 02-06-2017, 10:39 AM

The charger coming with the iPhone 7 could charge all my androids, including the Sony T1 and T3 I have. I have no idea what kind of cable it was, but I deliberately used the oldest microUSB cable I have, one that came AFAIR with a Nokia E71.
The charger also provided energy to USB-based lamps (for notepads and laptops), which IFIAK do not use signalling.

JSWolf · 02-06-2017, 04:31 PM

Quote:

Originally Posted by Ghitulescu

The charger coming with the iPhone 7 could charge all my androids, including the Sony T1 and T3 I have. I have no idea what kind of cable it was, but I deliberately used the oldest microUSB cable I have, one that came AFAIR with a Nokia E71.
The charger also provided energy to USB-based lamps (for notepads and laptops), which IFIAK do not use signalling.

The USB cable can be wired such that an Apple type USB charger will work. But with a normal cable, an Apple charger does not work with Sony Readers.

Ghitulescu · 02-07-2017, 05:14 AM

My Nokia E71 appeared only 1 years after the first iPhone. I doubt Nokia (or Apple) wanted to collaborate ... in fact no common charging and data interface was wanted by the manufacturers until someone from the EU, probably exasperatedly looking for a specific charger in the Parliament, forced them to do it, Apple resisted however.

So, in my family, harmony reigns. The Applecharger coming with the iPhone 7 plus can charge any appliance, the "regular" chargers can charge the iPhone - the only cloud darkening the sunshine is that I might need to pay inflated prices for a second Apple USB cable should the original get damaged or stolen or lost.

JSWolf · 02-07-2017, 06:49 AM

Quote:

Originally Posted by Ghitulescu

My Nokia E71 appeared only 1 years after the first iPhone. I doubt Nokia (or Apple) wanted to collaborate ... in fact no common charging and data interface was wanted by the manufacturers until someone from the EU, probably exasperatedly looking for a specific charger in the Parliament, forced them to do it, Apple resisted however.

So, in my family, harmony reigns. The Applecharger coming with the iPhone 7 plus can charge any appliance, the "regular" chargers can charge the iPhone - the only cloud darkening the sunshine is that I might need to pay inflated prices for a second Apple USB cable should the original get damaged or stolen or lost.

I've had an iPhone as far back as the iPhone 3. I've had a 505. The 505 did not charge using the iPhone USB charger. The 600, 650, and T1 did not charge using an iPhone or iPad charger. Apple did the USB charger their way and Sony went with the standard. Other companies made their devices compatible with Apple's USB charger. My Kobo Aura H2O charges using an Apple USB charger.

So please don't make it seem that a Sony Reader can be charged using an Apple USB Charger. It can't without a specially rewired USB cable.

Ghitulescu · 02-07-2017, 10:28 AM

It seems that there are conflicting experiences here.
As the Nokia USB cable I have can be used to charge and transfer data with all androids I have (and appears also to charge any of them from a nice expensive shiny white Apple charger), I wonder what kind of USB cable would be the one that does not allow this by purposely rewiring of the pins???
I am just curious, not contradictory ...

grumbles · 03-13-2017, 11:37 PM

For the most part, the cable is irrelevant. Sony requires that the data lines not be open on the USB power source, Apple devices for the most part do not care. There isn't a standard that requires either one but in my experience more power supplies leave those lines open than not.

As I said, for the most part. I have short micro-USB cables that came with USB battery packs. These cables have only the power lines but no data lines. They can only be used for charging.

Mini-USB connectors are less common that they used to be but are still in wide use. Canon still uses the mini connector on the Rebel series of dslr cameras. They use mini USB and mini HDMI connectors (and a 1/16" instead of an 1/8" jack for the remote control). This was the case for my XTi and T5 as well as my brand new T6.

Ghitulescu · 03-14-2017, 03:52 AM

There is a standard.
http://www.usb.org/developers/docs/d...arging_1.2.pdf

JSWolf · 03-14-2017, 06:11 AM

Yes, there is a standard. Sony went with it and Apple did not.

Ghitulescu · 03-15-2017, 06:54 AM

As I see this problem, Apple is not required to keep with this standard as a whole - because the cable is not an USB cable. All others have to observe the standard or could not get the licence.
On the other hand, the other end of the lightning cable as well as the Apple charger have USB connectors and as such they have to observe the USB standard.

These simple observations supports my practical findings, as stated (much!) above.

JSWolf · 03-15-2017, 07:36 AM

Quote:

Originally Posted by Ghitulescu

As I see this problem, Apple is not required to keep with this standard as a whole - because the cable is not an USB cable. All others have to observe the standard or could not get the licence.
On the other hand, the other end of the lightning cable as well as the Apple charger have USB connectors and as such they have to observe the USB standard.

These simple observations supports my practical findings, as stated (much!) above.

WRONG! The Apple charger is not USB standard. You cannot charge a Sony Reader with one.

Ghitulescu · 03-15-2017, 11:04 AM

I did two of them actually.
I have no problem charging the iPhone with a regular USB charger and no problems charging my two Sonies with the Apple charger and the oldest USB cable I could find.

I am positive that Apple could not use the USB connectors in the charger and at one end of the cable UNLESS the licensing terms were observed.

Maybe your unsuccessful attempts are due to the USB cables themselves - there are many flavours now, in some transparent ones I could see there are no DATA lines so the signalling fails (if it counts), maybe others have already the signalling resistors in place.

As a matter of fact, the only issues I have in my home, filled up with lots of gadgets to my wife's despair, is that some of them came only with charging-cables, that is they do not support data exchange - I marked those cables to avoid them when I need to transfer data between devices.

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02-03-2017, 02:53 AM	#17
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	I remember once that I did an USB bypass cable, shunting the data wires by 100 or 200 ohm SMD resistor, to charge I do not recall what appliance from a battery. Maybe this lacks in an Apple charger.

02-04-2017, 08:59 AM	#18
radius Lector minore Posts: 660 Karma: 1738720 Join Date: Jan 2008 Device: Aura One, Paperwhite Signature	I'm fairly certain that in the early days, there were charge-only, data-only, and dual use cables.

02-06-2017, 10:39 AM	#20
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	The charger coming with the iPhone 7 could charge all my androids, including the Sony T1 and T3 I have. I have no idea what kind of cable it was, but I deliberately used the oldest microUSB cable I have, one that came AFAIR with a Nokia E71. The charger also provided energy to USB-based lamps (for notepads and laptops), which IFIAK do not use signalling.

02-07-2017, 05:14 AM	#22
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	My Nokia E71 appeared only 1 years after the first iPhone. I doubt Nokia (or Apple) wanted to collaborate ... in fact no common charging and data interface was wanted by the manufacturers until someone from the EU, probably exasperatedly looking for a specific charger in the Parliament, forced them to do it, Apple resisted however. So, in my family, harmony reigns. The Applecharger coming with the iPhone 7 plus can charge any appliance, the "regular" chargers can charge the iPhone - the only cloud darkening the sunshine is that I might need to pay inflated prices for a second Apple USB cable should the original get damaged or stolen or lost.

02-07-2017, 10:28 AM	#24
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	It seems that there are conflicting experiences here. As the Nokia USB cable I have can be used to charge and transfer data with all androids I have (and appears also to charge any of them from a nice expensive shiny white Apple charger), I wonder what kind of USB cable would be the one that does not allow this by purposely rewiring of the pins??? I am just curious, not contradictory ...

03-13-2017, 11:37 PM	#25
grumbles Addict Posts: 238 Karma: 1500000 Join Date: Nov 2009 Location: Toronto Device: Pandigital Novel (Black), T-2 and 3, Nexus 7	For the most part, the cable is irrelevant. Sony requires that the data lines not be open on the USB power source, Apple devices for the most part do not care. There isn't a standard that requires either one but in my experience more power supplies leave those lines open than not. As I said, for the most part. I have short micro-USB cables that came with USB battery packs. These cables have only the power lines but no data lines. They can only be used for charging. Mini-USB connectors are less common that they used to be but are still in wide use. Canon still uses the mini connector on the Rebel series of dslr cameras. They use mini USB and mini HDMI connectors (and a 1/16" instead of an 1/8" jack for the remote control). This was the case for my XTi and T5 as well as my brand new T6.

03-14-2017, 03:52 AM	#26
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	There is a standard. http://www.usb.org/developers/docs/d...arging_1.2.pdf

03-14-2017, 06:11 AM	#27
JSWolf Resident Curmudgeon Posts: 79,792 Karma: 146391129 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Yes, there is a standard. Sony went with it and Apple did not.

03-15-2017, 06:54 AM	#28
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	As I see this problem, Apple is not required to keep with this standard as a whole - because the cable is not an USB cable. All others have to observe the standard or could not get the licence. On the other hand, the other end of the lightning cable as well as the Apple charger have USB connectors and as such they have to observe the USB standard. These simple observations supports my practical findings, as stated (much!) above.

03-15-2017, 11:04 AM	#30
Ghitulescu Fanatic Posts: 563 Karma: 403106 Join Date: Aug 2014 Device: PRS-T1	I did two of them actually. I have no problem charging the iPhone with a regular USB charger and no problems charging my two Sonies with the Apple charger and the oldest USB cable I could find. I am positive that Apple could not use the USB connectors in the charger and at one end of the cable UNLESS the licensing terms were observed. Maybe your unsuccessful attempts are due to the USB cables themselves - there are many flavours now, in some transparent ones I could see there are no DATA lines so the signalling fails (if it counts), maybe others have already the signalling resistors in place. As a matter of fact, the only issues I have in my home, filled up with lots of gadgets to my wife's despair, is that some of them came only with charging-cables, that is they do not support data exchange - I marked those cables to avoid them when I need to transfer data between devices.

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