I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...e002_res-1.jpg


Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D

wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...e002_res-1.jpg


Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D
If there's anything left of the old jack, you should be able to trace it
out with a mini-TRS plug and a meter. If not, it should be available on
eBay...or a dead mb. I expect every Dell is pretty much the same,
though. I wish I'd seen this yesterday when I had my D400 apart for
speaker replacement.

Carefully probing the connections--if you can run the computer
disassembled--with a probe made from a set of headphones might tell you
which are the input pads. That would be three out of (what should be)
five: L-in, R-in, L-out, R-out & common. If you can get to the leads on
the speakers, you should be able to check continuity to there to find
which pads are the L-out & R-out and common....

Finally, a lot of Dell manuals are available on the web. Try to
download one...any one, as per the above (identical parts).

jak

On Feb 25, 10:34*pm, jakdedert wrote:
wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re...

Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D

If there's anything left of the old jack, you should be able to trace it
out with a mini-TRS plug and a meter. *If not, it should be available on
eBay...or a dead mb. *I expect every Dell is pretty much the same,
though. *I wish I'd seen this yesterday when I had my D400 apart for
speaker replacement.

Carefully probing the connections--if you can run the computer
disassembled--with a probe made from a set of headphones might tell you
which are the input pads. *That would be three out of (what should be)
five: L-in, R-in, L-out, R-out & common. *If you can get to the leads on
the speakers, you should be able to check continuity to there to find
which pads are the L-out & R-out and common....

Finally, a lot of Dell manuals are available on the web. *Try to
download one...any one, as per the above (identical parts).

jak- Hide quoted text -

- Show quoted text -

grounds being 1 6 7 8

#3 appears to be a dead end trace, I turned the motherboard over and
there is no trace leading away from it on either side of the board.

So that leaves us with 2, 4, and 5 with traces leading away from
them.
#4 has trace leading away on both sides of the board.


Hope this helps.


D

On Feb 25, 10:41*pm, wrote:
On Feb 25, 10:34*pm, jakdedert wrote:





wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re....

Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D

If there's anything left of the old jack, you should be able to trace it
out with a mini-TRS plug and a meter. *If not, it should be available on
eBay...or a dead mb. *I expect every Dell is pretty much the same,
though. *I wish I'd seen this yesterday when I had my D400 apart for
speaker replacement.

Carefully probing the connections--if you can run the computer
disassembled--with a probe made from a set of headphones might tell you
which are the input pads. *That would be three out of (what should be)
five: L-in, R-in, L-out, R-out & common. *If you can get to the leads on
the speakers, you should be able to check continuity to there to find
which pads are the L-out & R-out and common....

Finally, a lot of Dell manuals are available on the web. *Try to
download one...any one, as per the above (identical parts).

jak- Hide quoted text -

- Show quoted text -

grounds being 1 6 7 8

#3 appears to be a dead end trace, I turned the motherboard over and
there is no trace leading away from it on either side of the board.

So that leaves us with 2, 4, and 5 with traces leading away from
them.
#4 has trace leading away on both sides of the board.

Hope this helps.

D- Hide quoted text -

- Show quoted text -

Yes I can get to the leads on the speaker. There are four of them two
for the right and two for the left. I tried a staight continuity test
it gave me a stange reading not a 000 reading of continuity.

wrote:
On Feb 25, 10:41 pm, wrote:
On Feb 25, 10:34 pm, jakdedert wrote:





wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.
http://i35.photobucket.com/albums/d1...eadphone002_re...
Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?
Thanks!
D
If there's anything left of the old jack, you should be able to trace it
out with a mini-TRS plug and a meter. If not, it should be available on
eBay...or a dead mb. I expect every Dell is pretty much the same,
though. I wish I'd seen this yesterday when I had my D400 apart for
speaker replacement.
Carefully probing the connections--if you can run the computer
disassembled--with a probe made from a set of headphones might tell you
which are the input pads. That would be three out of (what should be)
five: L-in, R-in, L-out, R-out & common. If you can get to the leads on
the speakers, you should be able to check continuity to there to find
which pads are the L-out & R-out and common....
Finally, a lot of Dell manuals are available on the web. Try to
download one...any one, as per the above (identical parts).
jak- Hide quoted text -
- Show quoted text -
grounds being 1 6 7 8

#3 appears to be a dead end trace, I turned the motherboard over and
there is no trace leading away from it on either side of the board.

So that leaves us with 2, 4, and 5 with traces leading away from
them.
#4 has trace leading away on both sides of the board.

Hope this helps.

D- Hide quoted text -

- Show quoted text -

Yes I can get to the leads on the speaker. There are four of them two
for the right and two for the left. I tried a staight continuity test
it gave me a stange reading not a 000 reading of continuity.

You'll have two leads on each speaker. One of each is probably common.
The other two (red on my D400, but it only has one speaker) should
connect to the jack.

If it's not a low resistance, then possibly the switch on the jack
doesn't directly interrupt the signal to the speakers, but switches the
speakers off electronically.

I'd be surprised if that's the case, perhaps someone else might know.

Do you not have the original jack? Easiest would be to check it for
pinout--even if it's mangled. Personally, I'd not want to put it back
together without it...too much trouble to disassemble if you want to fix
it in the future. Jacks are available....

jak

In article
,
wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...e002_res-1.jpg


Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Looks like a standard part to me so Mouser, etc?

http://www.maplin.co.uk/Module.aspx?ModuleNo=1199

gives the connection details.

Thanks!

D

--
*Isn't it a bit unnerving that doctors call what they do "practice?"

Dave Plowman London SW
To e-mail, change noise into sound.

Dave Plowman (News) Inscribed thus:

In article
,
wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off
the motherboard. I either need to get a replacement jack or figure
out what solder points to jump in order to get the speakers to work.
Here is a picture of the motherboard and the solder points.


http://i35.photobucket.com/albums/d1...e002_res-1.jpg


Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Looks like a standard part to me so Mouser, etc?

http://www.maplin.co.uk/Module.aspx?ModuleNo=1199

gives the connection details.

Thanks!

D

Hi Dave,
Unfortunately that jack is not the right one ! it has four pins in line
across the back.

The OP should check with the Dell manual for that machine.

--
Best Reagrds:
Baron.

On Feb 26, 8:50*am, Baron wrote:
Dave Plowman (News) Inscribed thus:

In article
,
* wrote:
I have a Dell inspiron E1405 and theheadphonejack was broken off
the motherboard. I either need to get a replacement jack or figure
out what solder points to jump in order to get the speakers to work.
Here is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re...



Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Looks like a standard part to me so Mouser, etc?

http://www.maplin.co.uk/Module.aspx?ModuleNo=1199

gives the connection details.

Thanks!

D

Hi Dave,
Unfortunately that jack is not the right one ! it has four pins in line
across the back.

The OP should check with the Dell manual for that machine.

--
Best Reagrds:
* * * * * * * * * * * * Baron.

The Foxconn jack next to it is the same one I need. Anyone know how to
find this jack?

Here is the manual for the computer:
http://support.dell.com/support/edoc...m/YF920A01.pdf

wrote in message
...
On Feb 25, 10:34 pm, jakdedert wrote:
wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re...

Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D

If there's anything left of the old jack, you should be able to trace it
out with a mini-TRS plug and a meter. If not, it should be available on
eBay...or a dead mb. I expect every Dell is pretty much the same,
though. I wish I'd seen this yesterday when I had my D400 apart for
speaker replacement.

Carefully probing the connections--if you can run the computer
disassembled--with a probe made from a set of headphones might tell you
which are the input pads. That would be three out of (what should be)
five: L-in, R-in, L-out, R-out & common. If you can get to the leads on
the speakers, you should be able to check continuity to there to find
which pads are the L-out & R-out and common....

Finally, a lot of Dell manuals are available on the web. Try to
download one...any one, as per the above (identical parts).

jak- Hide quoted text -

- Show quoted text -

grounds being 1 6 7 8

#3 appears to be a dead end trace, I turned the motherboard over and
there is no trace leading away from it on either side of the board.

So that leaves us with 2, 4, and 5 with traces leading away from
them.
#4 has trace leading away on both sides of the board.


Hope this helps.


D

#3 may or may not be a dead end trace. Many modern motherboards are mroe
than two layers (top and bottom).
Some boards havemany layers stacked together.
Example: My sony DCR-VX1000 camcorder has several boards that are 6 to 10
layers of traces.

On Feb 26, 7:20*pm, wrote:
On Feb 26, 8:50*am, Baron wrote:





Dave Plowman (News) Inscribed thus:

In article
,
* wrote:
I have a Dell inspiron E1405 and theheadphonejack was broken off
the motherboard. I either need to get a replacement jack or figure
out what solder points to jump in order to get the speakers to work.
Here is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re...

Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Looks like a standard part to me so Mouser, etc?

http://www.maplin.co.uk/Module.aspx?ModuleNo=1199

gives the connection details.

Thanks!

D

Hi Dave,
Unfortunately that jack is not the right one ! it has four pins in line
across the back.

The OP should check with the Dell manual for that machine.

--
Best Reagrds:
* * * * * * * * * * * * Baron.

The Foxconn jack next to it is the same one I need. Anyone know how to
find this jack?

Here is the manual for the computer:http://support.dell.com/support/edoc.../YF920A01.pdf- Hide quoted text -

- Show quoted text -

Could this be a combined optical digital output/analog line out
connector?

Regards,

Ravi.

wrote:

On Feb 26, 8:50Â*am, Baron wrote:
Dave Plowman (News) Inscribed thus:

In article

,
wrote:
I have a Dell inspiron E1405 and theheadphonejack was broken off
the motherboard. I either need to get a replacement jack or figure
out what solder points to jump in order to get the speakers to
work. Here is a picture of the motherboard and the solder points.


http://i35.photobucket.com/albums/d1...eadphone002_re...



Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get
a replacement jack?

Looks like a standard part to me so Mouser, etc?

http://www.maplin.co.uk/Module.aspx?ModuleNo=1199

gives the connection details.

Thanks!

D

Hi Dave,
Unfortunately that jack is not the right one ! it has four pins in
line across the back.

The OP should check with the Dell manual for that machine.

--
Best Reagrds:
Baron.

The Foxconn jack next to it is the same one I need. Anyone know how to
find this jack?

Here is the manual for the computer:

http://support.dell.com/support/edoc...m/YF920A01.pdf

Have you tried "Foxcon" ?

http://www.foxconn.com/NWInG/Search/Product_Family_Search.asp?P_Type=Audio+Jack&P_Fami ly=Audio+Jack+Connector&searchTypeID=1

Watch for line wrap.

--
Best Regards:
Baron.

On 26 Feb, 00:25, wrote:
I have a Dell inspiron E1405 and the headphone jack was broken off the
motherboard. I either need to get a replacement jack or figure out
what solder points to jump in order to get the speakers to work. Here
is a picture of the motherboard and the solder points.

http://i35.photobucket.com/albums/d1...eadphone002_re...

Does anyone know what solder points to connect in order to get the
speakers to work on the computer. Or does anyone know where to get a
replacement jack?

Thanks!

D

Help is here! I have just repaired an HP Pavilion N5412 laptop with an
identical socket that had been smashed. The audio to the socket is
separate to the speakers. Your pin 2 goes to the plug's ring, pin 5
goes to the tip, and ground pin 7 is common. Pin 3 makes contact with
pin 5 when the plug is absent. Pins 1 and 4 are normally closed, but
are open when the plug is inserted. Pin 4 goes to a logic gate pulled
up to 5V via 100K, and mutes the speakers when the plug is inserted.
There is a screening cover over the contacts, fixed by pins 6 and 8.

To make your speakers work, all you have to do is join pin 4 to
ground.

Here in Surrey, UK, the only high street shop that has electronics
components is Maplins. They have two types of 3mm stereo socket,
different layouts but having only 5 pins - tip, ring, & common, plus 2
pins that make contact with the tip and ring pins when the plug is
absent. They are obviously intended for circuits that feed headphones
by breaking the speaker feeds, and don't fit your board.

In my case the socket was mounted on a separate board, so I used a
piece of breadboard to mount the Maplin socket. As the tip and ring
are fed via isolating capacitors to avoid putting DC on the 30 ohm
headphones, I put 330 ohm resistors on the tip and ring pins to
ground, to keep these pins at ground in the absence of a plug. I then
connected a 6K8 resistor between one of the pins that make contact
when the plug is absent, and the line to the logic gate. When the plug
is absent the gate is pulled down via 6K8 and 330R, and when the plug
is inserted the pull-down is disconnected, muting the speakers.

This worked, but gave trouble because audio peaks get to the muting
logic and break up the speaker sound. To get round this I added a
0.1uF capacitor between the logic line and ground, to reduce the audio
getting to the logic via the 6K8. However when powering up the
computer, or inserting/removing the headphones, a very short squeak is
produced. This is because the logic voltage rises slowly owing to the
capacitor, and there is instability at the switching threshold. The
capacitor value was a compromise between length of squeak and stopping
speaker distortion.

My solution is obviously not as good as finding a proper socket.

Dave W

jakdedert wrote in news:Rrqpl.8820$b9.3380
@bignews6.bellsouth.net:

If it's not a low resistance, then possibly the switch on the jack
doesn't directly interrupt the signal to the speakers, but switches the
speakers off electronically.

I'd be surprised if that's the case, perhaps someone else might know.

I don't know in this particular case but did 'fight' a problem with a
laptop that I thought was due to a bad headphone connection.
Even changed the motherboard. Didn't fix the problem.

Turned out to be software.

The danged OS 'beep' was driving me crazy. It would come out of the
computer, LOUD, even when I disabled the speaker and turned volume all the
way down. On previous laptops I had stuck a 'dummy' plug in the speaker
jack to kill the beep but that didn't work on this one.

The 'beep' driver had to be disabled to kill the beep on that particular
model because the software routes beep to the speakers even if the
headphones are plugged in. 'Ordinary audio' would go the the phones rather
than the speaker but the beep still went to the speaker.

So, yes, there are computers that use software to control where sound goes.







--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

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