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Infrared LEB soldering on the substrate can not test what causes

Asked by: Robert Allen 186 views Hardware October 30, 2018

Infrared LED, which is connected to the remote control substrate, has no effect when the substrate is tested, and then presses the LED pin down, and then tin can be tested normally. (Note, soldering directly on the copper book, there is no LED pin is short.)

2 Answers

  1. +8Votes  

    It may be caused by a virtual weld. It is recommended to solder the LED pins first and apply a little rosin before soldering, and then solder them to the printed circuit board.

    Elizabeth Carter- October 30, 2018 |

  2. +7Votes  

    Adjust the correct soldering time.

    Kimberly- October 30, 2018 |