How would you go about testing this port without its adapter?

[juntjoo]

I've got a variable power adapter with various tips but just not for this port. Is there a common makeshift method to use in place of the right adapter?

 

[Bluejets]

Photo blurry but requires an input of 18.5v @ 2A....whether ac or dc is not clear....it shows which goes to which pin but as I said.blurry.
Measure inner pin diameter for correct size....usually use vernier caliper

 

[juntjoo]

Photo blurry but requires an input of 18.5v @ 2A....whether ac or dc is not clear....it shows which goes to which pin but as I said.blurry.
Measure inner pin diameter for correct size....usually use vernier caliper

Well I'm wondering without the proper adapter how you test these. Trying to avoid buying the adapter to test it. No trick to do this?

 

[PETERDECO]

18.5VDC 2A positive center. Looks like 5X2.1mm

 

[Martaine2005]

Only option for testing without the correct connector is to open the unit and connect direct to the wires.


Martin

 

[Bluejets]

Well I'm wondering without the proper adapter how you test these. Trying to avoid buying the adapter to test it. No trick to do this?

Test for what...it's a power input....

 

[kellys_eye]

If I understand you correctly then you have a power SUPPLY that has inter-changeable tips. It's possible to fit these tips in one of two directions (for positive-pin or negative-pin - centre-pin that is) and it's often confusing to tell which is which.

As a result I always use a test meter to double-check as getting it wrong can often be catastrophic.

 

[Martaine2005]

My crystal ball says that the OP has various DC barrel connectors for the variable power supply, but not for the pictured item.

Martin

 

[Bluejets]

If I understand you correctly then you have a power SUPPLY that has inter-changeable tips. It's possible to fit these tips in one of two directions (for positive-pin or negative-pin - centre-pin that is) and it's often confusing to tell which is which.

As a result I always use a test meter to double-check as getting it wrong can often be catastrophic.

Marking is on the casing as to which is which only the photo the Op provided is too blurry to make out polarity/ ac or dc as I quoted earlier.

 

[Harald Kapp]

whether ac or dc is not clear.

Obviously DC as indicated by ===. Sleeve (outer) = -, tip (inner) = +
See post #5 for accessing this port without the correct barrel jack.

 

[cjdelphi]

no you risk shorting it, opening it is the safest option or just buy the multi adapter tool thingy off of places like ebay

 

[juntjoo]

no you risk shorting it, opening it is the safest option or just buy the multi adapter tool thingy off of places like ebay

I did thanks