Joe
Thanks for suggestions. I will try that.
73 de aki
ja1nlx
(2014/08/31 22:38), Joe Subich, W4TV wrote:
Connect a 5.6K Ohm resistor between pin 6 and the ring of the CM-500
and a 1 uF capacitor between the tip of the CM-500 and pin 1 or
simply *disconnect* pin 6 and use bias for the K3 front mic jack.
Tip and ring are connected together in the CM-500.
There is a 10 uF capacitor from pin 6 to ground (in the DSP power
supply). That effectively shunts *any* audio to ground <G>. You
must use the 5K6 Ohm resistor to prevent this loss of mic audio.
73,
... Joe, W4TV
On 2014-08-31 3:45 AM, ayoshida wrote:
If CM-500 is connected to rear panel mic jack it works fine, however
if it is connected to front panel mic jack via conversion connector
I have a very low mic lebel with max mic level setting.
If CM-500 is connected to KX3 it works fine.
CM-500 mic plug to 8p plug connection in conversion connector is like
this.....
tip to pin-1
ring to pin 6 (K3 provides 8V regardless Bias ON/OFF)
sleeve to pin 7
I have another electret condenser hand mic. If this mic is connected to
K3 front panel mic jack it works fine.
If CM-500 is connected to K2 (where 5V is provided to pin 6 of mic jack)
using same
conversion connector it works fine.
Any suggestions please.
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