Lc7i rca outputs measuring mV w dmm

[ChillyWilly72]

I am trying to set gains on my lc7i but all i am getting is mV readings with 2 dmm...tried auto mode and selecting modes, what am i doing wrong?

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[1aespinoza 10+ year member]

I am trying to set gains on my lc7i but all i am getting is mV readings with 2 dmm...tried auto mode and selecting modes, what am i doing wrong?

Do you have the DMM set to AC volts?

 

[ChillyWilly72]

Yup

 

[ChillyWilly72]

Even tried a second dmm

 

[1aespinoza 10+ year member]

Even tried a second dmm

Was your radio at 75% volume? The reason for 75% is that most radios start distorting after that, the better ones can go 100% with no distortion. You have to play a 1000Hz tone when setting this gain.
You can download a test tone from one of the car audio manufacturer's site.

 

[ChillyWilly72]

yup, had my volume at 28 out of 38

 

[ChillyWilly72]

I select V~ and using auto it shows mV and when I select the range it shows nothing readable like a normal voltage 1.0-8.5 out of the LC7i.

 

[HardofWhoring]

I select V~ and using auto it shows mV and when I select the range it shows nothing readable like a normal voltage 1.0-8.5 out of the LC7i.

AC volts

 

[1aespinoza 10+ year member]

I select V~ and using auto it shows mV and when I select the range it shows nothing readable like a normal voltage 1.0-8.5 out of the LC7i.

Try using other RCA cables. Also make sure the correct output is selected on the headunit.

 

[ChillyWilly72]

I am measuring from the LC7i...HK system in the WRX goes left & right full range to HK amp which then splits the signal for each speaker location. I had to sum these to get quality full range sound to amplify which is what the LC7i was used for but when I go to measure the signal so that I am not exceeding the limits of my gear my DMM is reading in mV rather than Volts like every video on the planet shows (I figured I am just an idiot). Now I'm looking for local help who has an Oscope to help with the levels.

 

[ChillyWilly72]

I even cut up an RCA cable and soldered it to an extra set of DMM leads I had laying around so that it would be easy peasy.

 

[1aespinoza 10+ year member]

I even cut up an RCA cable and soldered it to an extra set of DMM leads I had laying around so that it would be easy peasy.

Try this other test; get a 3.5mm headphone repair cable and connect it to the LC7i input. Connect that to your phone and measure. This will tell us if the issue is the LC7i or the HK signal.
I just remembered something. Dodge UConnect radios have a protection that keeps the amp off if the speaker impedance is not detected. I wonder if HK has a similar feature but instead just lowers the ourput to those speakers.