K-3 External Speaker Issue

[Bill Robbins]

I bought a Logitech External speaker for the K-3 and it works great.  
The woofer is the master unit has a 15 pin socket for connections.  I
need an extension cable.  The cable looks like the VGA 15 pin, 5 pins in
3 rows.  However a VGA extension cable does not work.  Has anyone else
ran into this and maybe have a solution??

Thanks

Bill
WA8CDU
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[Don Wilhelm-4]

Bill,

A VGA extension cable has several of the pins connected together (I
believe all the shields).  Is that possibly the problem?
You can buy DE15HD cables that have all 15 pins routed end to end, but
that is not a VGA extension cable.

73,
Don W3FPR

On 12/29/2012 1:22 PM, Bill Robbins wrote:
> I bought a Logitech External speaker for the K-3 and it works great.  
> The woofer is the master unit has a 15 pin socket for connections.  I
> need an extension cable.  The cable looks like the VGA 15 pin, 5 pins
> in 3 rows.  However a VGA extension cable does not work.  Has anyone
> else ran into this and maybe have a solution??
>

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[Mike K2MK]

Hi Bill,

If you Google VGA plug wiring you'll see that not all pins are connected and some are shorted together. That's probably the reason for it not working. You probably need a DB15 straight through male to female extension cable, not a male/female VGA cable. You can purchase 15 pin straight through cables from assorted suppliers. Here are links to two suppliers:
http://www.winfordeng.com/products/ext15hd.php
http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10215&cs_id=1021501&p_id=544&seq=1&format=2

73,
Mike K2MK

Bill Robbins wrote

I bought a Logitech External speaker for the K-3 and it works great.  
The woofer is the master unit has a 15 pin socket for connections.  I
need an extension cable.  The cable looks like the VGA 15 pin, 5 pins in
3 rows.  However a VGA extension cable does not work.  Has anyone else
ran into this and maybe have a solution??

Thanks

Bill
WA8CDU

[Mike K2MK]

Correction:

The 2nd link I sent you (Monoprice) is incorrect. It shows 15 pins arranged in two rows. The first link (Windord) is correct, 15 pins in 3 rows.

73,
Mike K2MK

Mike K2MK wrote

Hi Bill,

If you Google VGA plug wiring you'll see that not all pins are connected and some are shorted together. That's probably the reason for it not working. You probably need a DB15 straight through male to female extension cable, not a male/female VGA cable. You can purchase 15 pin straight through cables from assorted suppliers. Here are links to two suppliers:
http://www.winfordeng.com/products/ext15hd.php
http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10215&cs_id=1021501&p_id=544&seq=1&format=2

73,
Mike K2MK

Bill Robbins wrote

I bought a Logitech External speaker for the K-3 and it works great.  
The woofer is the master unit has a 15 pin socket for connections.  I
need an extension cable.  The cable looks like the VGA 15 pin, 5 pins in
3 rows.  However a VGA extension cable does not work.  Has anyone else
ran into this and maybe have a solution??

Thanks

Bill
WA8CDU