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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) from the
heatsink unit B.
Caution: Handle the heatsink unit B with caution due to its
high temperature after prolonged use. Touching it may
lead to injuries.
Note: Refer to the diagrams of SMPS P.C.B. (Item 18.5.) for
location of the part.
9.20.2.
Assembly of Switching Regulator
IC (IC5701)
Step 1 Apply grease to the heatsink unit B.
Step 2 Mount the switch regulator IC (IC5701) to the SMPS
P.C.B.
Caution: Ensure pins of the switching regulator IC (IC5701)
are properly seated and soldered on SMPS P.C.B.
Step 3 Fix and screw the switching regulator IC (IC5701) to the
heatsink unit B.
Caution: Ensure the switching regulator IC (IC5701) is
tightly screwed to the heatsink unit B.
Special Note:
Step 4 Solder pins of the switch regulator IC (IC5701) on the
solder side of SMPS P.C.B.
9.21. Replacement of Rectifier Diode
(D5702)
9.21.1.
Disassembly of Rectifier Diode
(D5702)
• Follow (Step 1) to (Step 3) of Item 9.3.
• Follow (Step 1) to (Step 5) of Item 9.6.
• Follow (Step 1) to (Step 9) of Item 9.11.
• Follow (Step 1) to (Step 8) of Item 9.18.
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.
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