28-08-2019, 09:53 PM
A lot of the Asian-sourced power supplies are 'badge engineered' and just because yours has a HK Products label doesn't mean much. As far as finding a schematic is concerned, well good luck with that task. Unless it is also marketed under a well-known brand name (eg Manson) then the chances are slim.
I found the following... http://www.dehco.org/WebDocs/Tristar/Wel...Manual.pdf and it is being marketed under the Weltronics brand name, probably others too. Note that it has a 13.8V 15A rating but is marketed for use in spas & hot tub applications and not for powering radios. Maybe it is similar, maybe not.
These types of supplies fail occasionally, often due to the SMPS main power switch devices punching through and sometimes things like electrolytics failing. May be as simple as a fuse failing. Could be an easy fix, maybe.
I found the following... http://www.dehco.org/WebDocs/Tristar/Wel...Manual.pdf and it is being marketed under the Weltronics brand name, probably others too. Note that it has a 13.8V 15A rating but is marketed for use in spas & hot tub applications and not for powering radios. Maybe it is similar, maybe not.
These types of supplies fail occasionally, often due to the SMPS main power switch devices punching through and sometimes things like electrolytics failing. May be as simple as a fuse failing. Could be an easy fix, maybe.
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.