Maker Pro
Maker Pro

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

juntjoo

Jun 8, 2015
82
Joined
Jun 8, 2015
Messages
82
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?
 

Attachments

  • IMG_20220330_210557151.jpg
    IMG_20220330_210557151.jpg
    140.9 KB · Views: 16

Bluejets

Oct 5, 2014
5,883
Joined
Oct 5, 2014
Messages
5,883
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

Jun 8, 2015
82
Joined
Jun 8, 2015
Messages
82
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?
 

Martaine2005

May 12, 2015
4,305
Joined
May 12, 2015
Messages
4,305
Only option for testing without the correct connector is to open the unit and connect direct to the wires.


Martin
 

kellys_eye

Jun 25, 2010
4,880
Joined
Jun 25, 2010
Messages
4,880
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

May 12, 2015
4,305
Joined
May 12, 2015
Messages
4,305
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

Oct 5, 2014
5,883
Joined
Oct 5, 2014
Messages
5,883
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.
 

cjdelphi

Oct 26, 2011
1,166
Joined
Oct 26, 2011
Messages
1,166
no you risk shorting it, opening it is the safest option or just buy the multi adapter tool thingy off of places like ebay
 
Top