Using Portable Hard Drive with Home Theater System

[joelmc]

I have a Daewoo Cutie Fx 60GB portable hard drive (Model # FHD-256) that
contains my complete music collection - it's about 2 years old. I recently
bought a JVC DVD Digital theater system (Model TH-C20). I thought I could
plug the device into the home theater and play my music but I get a message
"cannot read this device". The manual says this home theater system is
compatible with USB 2.0 Full Speed and not with USB 1.1. How can I tell if
my portable hard drive is 2.0 or 1.1? Unfortunately don't have any paper
that came with it. Will I need to buy a new device to connect to my home
theater?

 

[Rod Speed]

I have a Daewoo Cutie Fx 60GB portable hard drive (Model # FHD-256)

I think whoever named that should be publicly flogged.

that contains my complete music collection - it's about 2 years old.
I recently bought a JVC DVD Digital theater system (Model TH-C20).
I thought I could plug the device into the home theater and play my
music but I get a message "cannot read this device".

That may be due to the way its formatted.

The manual says this home theater system is compatible with USB 2.0 Full Speed
and not with USB 1.1. How can I tell if my portable hard drive is 2.0 or 1.1?

Plug it into a USB 1.1 port on your PC if you have one.
It should say that it will be much faster in a USB2 port.

Unfortunately don't have any paper that came with it. Will I
need to buy a new device to connect to my home theater?

Why dont you ask JVC, the manual is too vague about that sort of thing.

 

[Rod Speed]

Bugger all info on that, but it does look like its USB2.0
Wouldnt make sense for it to be USB 1.1 given the size.
http://translate.google.com/transla...rev=/search?q=FHD-256&hl=en&lr=&c2coff=1&sa=G

 

[timeOday]

I have a Daewoo Cutie Fx 60GB portable hard drive (Model # FHD-256) that
contains my complete music collection - it's about 2 years old. I recently
bought a JVC DVD Digital theater system (Model TH-C20). I thought I could
plug the device into the home theater and play my music but I get a message
"cannot read this device". The manual says this home theater system is
compatible with USB 2.0 Full Speed and not with USB 1.1. How can I tell if
my portable hard drive is 2.0 or 1.1? Unfortunately don't have any paper
that came with it. Will I need to buy a new device to connect to my home
theater?

Maybe you formatted NTFS and it only supports FAT32?

 

[Arno Wagner]

I have a Daewoo Cutie Fx 60GB portable hard drive (Model # FHD-256) that
contains my complete music collection - it's about 2 years old. I recently
bought a JVC DVD Digital theater system (Model TH-C20). I thought I could
plug the device into the home theater and play my music but I get a message
"cannot read this device". The manual says this home theater system is
compatible with USB 2.0 Full Speed and not with USB 1.1.

If the manual explicitely states that the device is incompatible with
USB 1.1, then you need an USB 2.0 capable external drive. USB 1.1
and USB 2.0 use a different interface on the software side (UHCI or
OHCI for 1.1, EHCI for 2.0). Usually all 2.0 host interfaces also
have an 1.1 interface integrated, but it is possible to save a
few cents by not doing so.

Arno

 

[Folkert Rienstra]

If the manual

explicitely

It's rather ambiguous on that point, stating "USB 2.0 Full Speed".

states that the device is incompatible with USB 1.1, then you need an
USB 2.0 capable external drive.
USB 1.1 and USB 2.0 use different interfaces

on the software side (UHCI or OHCI for 1.1, EHCI for 2.0).

That would be the hardware/software/firmware side.

Usually all 2.0 host interfaces also have an 1.1 interface integrated,

Which makes them USB2.0 compliant.

but it is possible to save a few cents by not doing so.

Which makes them not USB2.0 compliant.

 

[joelmc via HWKB.com]

Well, I think maybe I've figured it out - the JVC manual says "system cannot
recognize a USB mass storage class device whose rating exceeds 5V / 500 mA".

Bugger all info on that, but it does look like its USB2.0
Wouldnt make sense for it to be USB 1.1 given the size.
http://translate.google.com/transla...rev=/search?q=FHD-256&hl=en&lr=&c2coff=1&sa=G

I think whoever named that should be publicly flogged.

[quoted text clipped - 17 lines]

Why dont you ask JVC, the manual is too vague about that sort of
thing.

 

[Rod Speed]

Well, I think maybe I've figured it out - the JVC manual
says "system cannot recognize a USB mass storage
class device whose rating exceeds 5V / 500 mA".

That is talking about the load on the USB cable.

On the back of the "cutie" it says the DC Input is +5V / 1A.

That is talking about its total demand. Does it have its own power pack ?

Do you guys think this is the problem?

Depends on whether the 'cutie' has its own power pack or not.


The manual also says that it only supports FAT and FAT32 USB devices.
If your 'cutie' is formatted NTFS that would explain why it refuses to use it.

joelmc <u25653@uwe> wrote:

I have a Daewoo Cutie Fx 60GB portable hard drive (Model # FHD-256)

Bugger all info on that, but it does look like its USB2.0
Wouldnt make sense for it to be USB 1.1 given the size.
http://translate.google.com/transla...rev=/search?q=FHD-256&hl=en&lr=&c2coff=1&sa=G

I think whoever named that should be publicly flogged.

[quoted text clipped - 17 lines]

Why dont you ask JVC, the manual is too vague about that sort of
thing.

 

[Aidan Karley]

Well, I think maybe I've figured it out - the JVC manual says "system cannot
recognize a USB mass storage class device whose rating exceeds 5V / 500 mA".
On the back of the "cutie" it says the DC Input is +5V / 1A.
Do you guys think this is the problem?

If you have an externally powered USB hub, this should insulate the
host device (the JVC thing) from the power requirements of the "cutie". Which
would just leave formatting issues etc as Rod is pointing out.

 

[Rod Speed]

If you have an externally powered USB hub, this should insulate
the host device (the JVC thing) from the power requirements of the
"cutie".

The manual for the JVC says that hubs should not be used for some reason.

Likely thats just a stupid way of saying that there shouldnt
be more than one USB device plugged into it at a time tho.