Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector (Type 'B' socket) has been damaged - it looks like the plug was hit pretty hard. The result is the socket has been shoved sideways on the PCB and has come in to contact with an IC (U1) breaking one of the legs off.

So now the problem is not only replacing the USB socket (simple) but also getting a replacement for 'U1'. The IC is only marked with 'S22X' which I'm assuming is a shortcode for the 'real' type number, but 'googling' hasn't brought up any helpful hints of what the device really is.

If it helps I've posted a couple of pictures he

Before removing the USB socket:
http://tinypic.com/r/maaqvp/9

With the USB socket removed:
http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe more importantly where to get one?

Thanks

Simon

wrote:

Anyone have any ideas what the true identity of the device is and
maybe more importantly where to get one?

The chip seems to go to two pins on the USB socket, can you trace out
whether they are the D+/D- pins or the 5V/0V pins? If power pins, does
the device give or receive power on the USB interface?

Some of the SMD codes S22* show either zener diodes or LDO voltage
regulators in SOT23-6 packages

If you removed the dead chip could you get a test probe onto the remnant
of the snapped pin? e.g. to identify it with a cheapo Mega328 component
tester?

On 15/02/2017 08:32, wrote:
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector (Type 'B' socket) has been damaged - it looks like the plug was hit pretty hard. The result is the socket has been shoved sideways on the PCB and has come in to contact with an IC (U1) breaking one of the legs off.

So now the problem is not only replacing the USB socket (simple) but also getting a replacement for 'U1'. The IC is only marked with 'S22X' which I'm assuming is a shortcode for the 'real' type number, but 'googling' hasn't brought up any helpful hints of what the device really is.

If it helps I've posted a couple of pictures he

Before removing the USB socket:
http://tinypic.com/r/maaqvp/9

With the USB socket removed:
http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe more importantly where to get one?

Thanks

Simon

Almost certainly a USB Static / Over-Voltage protection device. You'll
probably be fine without it.

On 15/02/2017 08:32, wrote:
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector (Type 'B' socket) has been damaged - it looks like the plug was hit pretty hard. The result is the socket has been shoved sideways on the PCB and has come in to contact with an IC (U1) breaking one of the legs off.

So now the problem is not only replacing the USB socket (simple) but also getting a replacement for 'U1'. The IC is only marked with 'S22X' which I'm assuming is a shortcode for the 'real' type number, but 'googling' hasn't brought up any helpful hints of what the device really is.

If it helps I've posted a couple of pictures he

Before removing the USB socket:
http://tinypic.com/r/maaqvp/9

With the USB socket removed:
http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe more importantly where to get one?

Thanks

Simon

Probably...

http://uk.farnell.com/on-semiconduct...ter/dp/1651958

Cheers
--
Clive

Anyone have any ideas what the true identity of the device is and
maybe more importantly where to get one?

Thanks

Simon

Almost certainly a USB Static / Over-Voltage protection device. You'll
probably be fine without it.
This device I reckon..
http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

Am 15.02.2017 um 09:32 schrieb :
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector (Type 'B' socket) has been damaged - it looks like the plug was hit pretty hard. The result is the socket has been shoved sideways on the PCB and has come in to contact with an IC (U1) breaking one of the legs off.

So now the problem is not only replacing the USB socket (simple) but also getting a replacement for 'U1'. The IC is only marked with 'S22X' which I'm assuming is a shortcode for the 'real' type number, but 'googling' hasn't brought up any helpful hints of what the device really is.

If it helps I've posted a couple of pictures he

Before removing the USB socket:
http://tinypic.com/r/maaqvp/9

With the USB socket removed:
http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe more importantly where to get one?

Thanks

Simon

Just guessing:
http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

Many thanks to all that have posted, I think we have a winner! It does look very much like one of these:

http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

Which fortunately are stocked by Farnell with a reasonable minimum order qty :-)

When I have a chance I'll just double check some measurements on the remaining pins - should be able to confirm the Rs and Rup values.

Thanks again to all

Simon

Matthias Czech wrote:

Am 15.02.2017 um 09:32 schrieb :
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector
(Type 'B' socket) has been damaged - it looks like the plug was hit
pretty hard. The result is the socket has been shoved sideways on the
PCB and has come in to contact with an IC (U1) breaking one of the legs
off.

So now the problem is not only replacing the USB socket (simple) but
also getting a replacement for 'U1'. The IC is only marked with 'S22X'
which I'm assuming is a shortcode for the 'real' type number, but
'googling' hasn't brought up any helpful hints of what the device really
is.

If it helps I've posted a couple of pictures he

Before removing the USB socket: http://tinypic.com/r/maaqvp/9

With the USB socket removed: http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe
more importantly where to get one?

Thanks

Simon

Just guessing:
http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

I think that's pretty convincing.

Can you get a thin strand from some fine stranded wire soldere to the
stump of the broken pin, and put it back in place with that wire
connected to the originai pad?




--

Roger Hayter

On 15/02/2017 12:08, Roger Hayter wrote:
Matthias Czech wrote:

Am 15.02.2017 um 09:32 schrieb :
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector
(Type 'B' socket) has been damaged - it looks like the plug was hit
pretty hard. The result is the socket has been shoved sideways on the
PCB and has come in to contact with an IC (U1) breaking one of the legs
off.

So now the problem is not only replacing the USB socket (simple) but
also getting a replacement for 'U1'. The IC is only marked with 'S22X'
which I'm assuming is a shortcode for the 'real' type number, but
'googling' hasn't brought up any helpful hints of what the device really
is.

If it helps I've posted a couple of pictures he

Before removing the USB socket: http://tinypic.com/r/maaqvp/9

With the USB socket removed: http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe
more importantly where to get one?

Thanks

Simon

Just guessing:
http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

I think that's pretty convincing.

Can you get a thin strand from some fine stranded wire soldere to the
stump of the broken pin, and put it back in place with that wire
connected to the originai pad?





+1

When I built my Acorn Atom from a kit, static rams came in pairs.
You needed two chips for for 1K ram and they were £6 each which
was a lot in 1978.

I snapped a pin off one chip and resorted to carefully sawing off the
corner and soldering some wire wrap wire onto the metal stump and then
onto the PCB. And it worked fine. Shame about the bloody awful keyboard
though.

On Wed, 15 Feb 2017 19:07:00 +0000, Andrew
wrote:

On 15/02/2017 12:08, Roger Hayter wrote:
Matthias Czech wrote:

Am 15.02.2017 um 09:32 schrieb :
Hi all,

I have a CSR 1455 bluetooth development device, where the USB connector
(Type 'B' socket) has been damaged - it looks like the plug was hit
pretty hard. The result is the socket has been shoved sideways on the
PCB and has come in to contact with an IC (U1) breaking one of the legs
off.

So now the problem is not only replacing the USB socket (simple) but
also getting a replacement for 'U1'. The IC is only marked with 'S22X'
which I'm assuming is a shortcode for the 'real' type number, but
'googling' hasn't brought up any helpful hints of what the device really
is.

If it helps I've posted a couple of pictures he

Before removing the USB socket: http://tinypic.com/r/maaqvp/9

With the USB socket removed: http://tinypic.com/r/2w6ayog/9

Anyone have any ideas what the true identity of the device is and maybe
more importantly where to get one?

Thanks

Simon

Just guessing:
http://www.onsemi.com/pub_link/Colla...202-22T1-D.PDF

I think that's pretty convincing.

Can you get a thin strand from some fine stranded wire soldere to the
stump of the broken pin, and put it back in place with that wire
connected to the originai pad?





+1

When I built my Acorn Atom from a kit, static rams came in pairs.
You needed two chips for for 1K ram and they were £6 each which
was a lot in 1978.

I snapped a pin off one chip and resorted to carefully sawing off the
corner and soldering some wire wrap wire onto the metal stump and then
onto the PCB. And it worked fine. Shame about the bloody awful keyboard
though.

Restoring a pre-war radio I pulled too hard on the top-cap of a valve
and the wire sheered off flush with the glass. I used a diamond file
to remove half a mm of glass around the wire, and soldered a strand of
copper wire, and reattached the topcap with araldite.


--

Graham.
%Profound_observation%

Just a final followup.... With a new IC (STF202) and USB socket fitted, the device is now working again!

Thanks to all for the help identifying the component

Cheers

Simon