Maintenance 5-12 X-2 Technical Service Manual
Publication No: 15-02047
8. Clean the transistor mating surface on the heatsink with a cloth or
tissue.
9. Coat the transistor flange with a thin film of thermal compound
(eg. Jermyn Thermaflow). Check the orientation and fit the new
transistors.
10. Refit the four flange mounting screws complete with the three solder
lugs. Tighten the screws evenly.
11. Carefully solder the transistor connections. This should be carried out
quickly using a very hot tipped soldering iron.
12. Refit the output transformer complete with new cable tie, driver
transformer and capacitors C87 to C89.
13. Re-adjust the bias current. Refer to Chapter 7 - Adjustments
Section 7.11.
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