Don't Miss


No Power In Kinwin PSU ABT-800MA1S

By on June 24, 2013

Please help me to identify a fault on Kinwin PSU ABT-800MA1S. The PSU is dead and silent with fuse good. Voltage testing:

AC input is ok

The filter capacitor is ok

The Supply voltage of power IC  (ICE2A0565Z) is hoping from 10.~ V to 11.~V. It must be 16V? So a fault is in primary side? I have tested resistors capacitors and transistos, they are ok.

Answer:

If the secondary side output diodes are good then possibly the power IC or the corresponding components have problem. Make sure the power supply is connected to a load otherwise it will give inaccurate reading.

If the power supply is using optoisolator ic and TL431 IC then direct replace it and retest.

 

Likes(0)Dislikes(0)

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Free Report