Replacement Of Switching Regulator Ic (Ic5701) - Panasonic SA-AK580PH Service Manual

9.19. Replacement of Switching Reg-
ulator IC (IC5701)
• Follow (Step 1) to (Step 5) of Item 9.3
• Follow (Step 1) to (Step 6) of Item 9.4
• Follow (Step 1) to (Step 5) of Item 9.14
• Follow (Step 1) to (Step 4) of Item 9.18
9.19.1. Disassembly of Switching Regula-
tor IC (IC5701)
Step 1 : Desolder pins of the Switching Regulator IC (IC5701)
on the solder side of SMPS P.C.B..
Step 2 : Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 3 : Remove the Switching Regulator IC (IC5701).
Caution : During replacement of the part, avoid touching
the heatsink, it may lead to injuries.
9.19.2. Assembly of Switching Regulator
IC (IC5701)
Step 1 : Apply grease to the Heatsink Unit B.
Step 2 : Mount the Switching Regulator IC (IC5701) on to
SMPS P.C.B..
Caution : Ensure pins of the Switching Regulator IC
(IC5701) are properly seated on SMPS P.C.B..
Step 3 : Solder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
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