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TECH TIPS
Troubleshooting tips and solutions to common service problems
For model: Entra Sub Two TIP# INFTT2003-02
Subject: Replacing MOSFETS Q18, Q22
In the event you need to replace MOSFET transistors Q18 or Q22 as part of a repair, it is important to use
ONLY the Infinity part# FE106401110 or only the brands: International Rectifier, or Fairchild.
Replace both
Q18 and Q22 MOSFET’s in the circuit, even if only one seems to be damaged.
Do NOT mix & match these components from different manufacturers, or batches. They should be
identical
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