CD Walkman power requirements...

L

Landon

Guest
Hi,

I have a Sony CD Walkman D191 CD player that normally runs on two 1.5
volt AA batteries (3 volts) but did come with a 4.5VDC 400mA power adapter.

I am going on a long trip and need to find a power adapter that I can
plug into my cigarette lighter, my problem is that the only ones that I
can find are rated for 300mA.

Does anyone know what mA rating this CD player actually needs? It is
not marked on the case and www.sony.com could only tell me that it
needed 4.5 volts.


Thanks,

-Landon
 
They usually leave a good margin on the original PSUs in my experience,
you should be fine with a 300.

How long does it last on a set ofgood XmAh rechargables? From that you
can work out roughly the actual current draw and decide for yourself.
Generally though, IMO, you can draw a little more than the PSU states
without worry, and they supply a PSU with items that can handle a fair
amount more than the item draws.

J
 
Landon wrote:

I have a Sony CD Walkman D191 CD player that normally runs on two 1.5
volt AA batteries (3 volts) but did come with a 4.5VDC 400mA power
adapter.

I am going on a long trip and need to find a power adapter that I can
plug into my cigarette lighter, my problem is that the only ones that I
can find are rated for 300mA.

Does anyone know what mA rating this CD player actually needs?
Click to expand...
If it isn't marked on the player itself, then it's 400 mA.

It is
not marked on the case and www.sony.com could only tell me that it
needed 4.5 volts.
Click to expand...
On Fri, 03 Jun 2005 02:56:27 -0700, Coyoteboy wrote:

They usually leave a good margin on the original PSUs in my experience,
you should be fine with a 300.
Click to expand...
I wouldn't bet on it. If they specify 400 mA, then you need 400 mA.

Here's a big honker:
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=273-1818
albeit that's overkill, and way too expensive. Frankly, if the "only one
you can find" is a 300 mA adapter, then you're not looking hard enough.

You can try it, but at your own risk - it will work until it burns itself
up or damages the CD player.

Good Luck!
Rich
 
Hi Rich,

Thanks for the reply.

I refuse to shop at Radio Shack unless I absolutely have to, which
may be what I end up doing. Most of what they sell has 500 to 1000%
mark up compaired to what I can get at a parts distributor and/or mail
order (this mainly applies to electronic componets).

Something else I have considered doing is getting a voltage inverter
that will plug into the cigarette lighter and use the 400mA adapter that
the CD player came with.


-Landon

..Rich Grise wrote:
Landon wrote:


I have a Sony CD Walkman D191 CD player that normally runs on two 1.5
volt AA batteries (3 volts) but did come with a 4.5VDC 400mA power
adapter.


I am going on a long trip and need to find a power adapter that I can
plug into my cigarette lighter, my problem is that the only ones that I
can find are rated for 300mA.


Does anyone know what mA rating this CD player actually needs?


If it isn't marked on the player itself, then it's 400 mA.


It is
not marked on the case and www.sony.com could only tell me that it
needed 4.5 volts.


On Fri, 03 Jun 2005 02:56:27 -0700, Coyoteboy wrote:


They usually leave a good margin on the original PSUs in my experience,
you should be fine with a 300.



I wouldn't bet on it. If they specify 400 mA, then you need 400 mA.

Here's a big honker:
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=273-1818
albeit that's overkill, and way too expensive. Frankly, if the "only one
you can find" is a 300 mA adapter, then you're not looking hard enough.

You can try it, but at your own risk - it will work until it burns itself
up or damages the CD player.

Good Luck!
Rich
Click to expand...
 
Pick up a nice, small DC to AC invertor, Harbor Freight, C/C, B/B, etc have
them for a fair price. Then use the P/S you already have. Plus you can use
it with other items that you may want to take with you in your auto.
"Landon" <transwarp2000@comcast.net> wrote in message
news:5u6dnQXFQJFc_TzfRVn-rw@comcast.com...
Hi Rich,

Thanks for the reply.

I refuse to shop at Radio Shack unless I absolutely have to, which
may be what I end up doing. Most of what they sell has 500 to 1000% mark
up compaired to what I can get at a parts distributor and/or mail order
(this mainly applies to electronic componets).

Something else I have considered doing is getting a voltage inverter that
will plug into the cigarette lighter and use the 400mA adapter that
the CD player came with.


-Landon

.Rich Grise wrote:
Landon wrote:


I have a Sony CD Walkman D191 CD player that normally runs on two 1.5
volt AA batteries (3 volts) but did come with a 4.5VDC 400mA power
adapter.


I am going on a long trip and need to find a power adapter that I can
plug into my cigarette lighter, my problem is that the only ones that I
can find are rated for 300mA.


Does anyone know what mA rating this CD player actually needs?


If it isn't marked on the player itself, then it's 400 mA.


It is not marked on the case and www.sony.com could only tell me that it
needed 4.5 volts.


On Fri, 03 Jun 2005 02:56:27 -0700, Coyoteboy wrote:


They usually leave a good margin on the original PSUs in my experience,
you should be fine with a 300.



I wouldn't bet on it. If they specify 400 mA, then you need 400 mA.

Here's a big honker:
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=273-1818
albeit that's overkill, and way too expensive. Frankly, if the "only one
you can find" is a 300 mA adapter, then you're not looking hard enough.

You can try it, but at your own risk - it will work until it burns itself
up or damages the CD player.

Good Luck!
Rich
Click to expand...
 
Hi Art,

I took your suggestion and found a 400watt inverter for $35 at a local
store, it worked flawlessly for the entire 1000+ mile trip, the
inverter's heat sinks and the CD's power adapter stayed cool the entire
trip.


Thanks,

-Landon


Art wrote:
Pick up a nice, small DC to AC invertor, Harbor Freight, C/C, B/B, etc have
them for a fair price. Then use the P/S you already have. Plus you can use
it with other items that you may want to take with you in your auto.
"Landon" <transwarp2000@comcast.net> wrote in message
news:5u6dnQXFQJFc_TzfRVn-rw@comcast.com...

Hi Rich,

Thanks for the reply.

I refuse to shop at Radio Shack unless I absolutely have to, which
may be what I end up doing. Most of what they sell has 500 to 1000% mark
up compaired to what I can get at a parts distributor and/or mail order
(this mainly applies to electronic componets).

Something else I have considered doing is getting a voltage inverter that
will plug into the cigarette lighter and use the 400mA adapter that
the CD player came with.


-Landon

.Rich Grise wrote:

Landon wrote:



I have a Sony CD Walkman D191 CD player that normally runs on two 1.5
volt AA batteries (3 volts) but did come with a 4.5VDC 400mA power
adapter.


I am going on a long trip and need to find a power adapter that I can
plug into my cigarette lighter, my problem is that the only ones that I
can find are rated for 300mA.


Does anyone know what mA rating this CD player actually needs?


If it isn't marked on the player itself, then it's 400 mA.



It is not marked on the case and www.sony.com could only tell me that it
needed 4.5 volts.


On Fri, 03 Jun 2005 02:56:27 -0700, Coyoteboy wrote:



They usually leave a good margin on the original PSUs in my experience,
you should be fine with a 300.



I wouldn't bet on it. If they specify 400 mA, then you need 400 mA.

Here's a big honker:
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=273-1818
albeit that's overkill, and way too expensive. Frankly, if the "only one
you can find" is a 300 mA adapter, then you're not looking hard enough.

You can try it, but at your own risk - it will work until it burns itself
up or damages the CD player.

Good Luck!
Rich
Click to expand...
 
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