Replacement Of Switching Regulator Ic (Ic5701) - Panasonic SC-HC40PC Service Manual

Compact stereo system
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9.24. Replacement of Switching Reg-
ulator IC (IC5701)
• Refer to "Disassembly of SMPS P.C.B.".
9.24.1. Disassembly of Switching Regula-
tor IC (IC5701)
Caution : Handle the heatsink unit and P.C.B. with caution
due to its high temperature after prolonged use. Touching
it may lead to injuries.
Step 1 : Desolder pins of Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 2 : Desolder pins of Heatsink Unit on the solder side of
SMPS P.C.B..
Step 3 : Remove the Heatsink Unit with the Switching Regula-
tor IC (IC5701).
Step 4 : Remove 1 screw.
Step 5 : Remove the Switching Regulator IC (IC5701).
9.24.2. Assembly of Switching Regulator
IC (IC5701)
Step 1 : Apply grease to the Heatsink Unit.
Step 2 : Fix & screw the Switching Regulator IC (IC5701) onto
the Heatsink Unit.
Caution : Ensure the Switching Regulator IC (IC5701) is
tightly screwed to the Heatsink Unit.
52

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