Panasonic SA-VK880PU, Service Manual

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Caution: During replacement of the part, avoid touching
the heatsink, it may lead to injuries.
9.26.2. 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..
Step 4 Screw the Switching Regulator IC (IC5701) to the Heat-
sink Unit B.
Caution: Ensure the switching regulator IC (IC5701) is
tightly screwed to the Heatsink Unit B.
9.27. Replacement of Rectifier Diode
(D5702)
• Follow (Step 1) to (Step 5) of Item 9.3
• Follow (Step 1) to (Step 7) of Item 9.4
• Follow (Step 1) to (Step 5) of Item 9.19
• Follow (Step 1) to (Step 5) of Item 9.25
9.27.1. Disassembly of Rectifier Diode
(D5702)
Step 1 Desolder pins of the Rectifier Diode (D5702) on the sol-
der side of SMPS P.C.B..
Step 2 Desolder pins of the Heatsink Unit B.
Step 3 Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 4 Remove the Heatsink Unit B in the direction of arrow