Nintendo Switch Joycons not charging or connecting Repair

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Nintendo Switch Joycons not charging or connecting Repair
Device Nintendo Switch
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

Joycons not charging or connecting/pairing. Joycons aren't charging (on one or both sides), the fan works, and the side-rail is confirmed working.

Symptoms

  • Joycons not charging or connecting/pairing
  • Joycons aren't charging (on one or both sides)
  • The fan works
  • The side-rail is confirmed working.

Solution

Diagram showing resistor layout

Measure both resistors. 18kohm on both resistors indicates a failed/shorted capacitor (even if the cap does not test as a short). Resistors should measure 100kohm and 22kohm respectively. Measure pin 6 in diode mode-- it should read 0. If it reads 0.6v drop this reinforces the capacitor failure. If resistors check out, the DC-DC component may need replacing

Left Joycon DC-DC converter
Right Joycon DC-DC converter