Replacement Of Switching Regulator Ic (Ic5701) - Panasonic SA-BTT775GA Service Manual

10.22. Replacement of Switching Reg-
ulator IC (IC5701)
• Refer to "Disassembly of Top Cabinet".
• Refer to "Disassembly of SMPS P.C.B.".
10.22.1. Disassembly of Switching Regula-
tor IC (IC5701)
Step 1 Place SMPS P.C.B. on an insulated material.
Step 2 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 3 Desolder pins of the Rectifier Diode (D5702) on the sol-
der side of SMPS P.C.B..
Step 4 Desolder pins of the Heatsink A.
Step 5 Remove the Switching Regulator Unit in the direction of
arrow.
Caution: Avoid touching the Switching Regulator Unit due
to its high temperature after prolonged use. Touching it
may lead to injuries.
Step 6 Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 7 Remove the Switching Regulator IC (IC5701) from the
Heatsink A.
Note: Refer to the diagrams of SMPS P.C.B. (Item 18.4) for
location of the part.
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