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Step 1 Apply grease to the Heatsink A.
Step 2 Screw the Switching Regulator (Q5700) to the Heatsink
A.
Caution: Ensure the Switching Regulator (Q5700) is tightly 
screwed to the Heatsink A.
Step 3 Fix the Heatsink A with the Switching Regulator
(Q5700) on the SMPS P.C.B. as shown.
Caution 1: Ensure the Heatsink A with the Switching Regu-
lator (Q5700) are properly inserted into the SMPS P.C.B..

Step 4 Solder pins of the Switching Regulator (Q5700) on the
solder side of the SMPS P.C.B..
Step 5 Solder pins of the Heatsink A on the solder side of the
SMPS P.C.B..

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• Refer to “Disassembly of SMPS P.C.B.”.

Step 1 Desolder pins of the Rectifier Diode (D5801) and
(D5802) on the solder side of the SMPS P.C.B..
Step 2 Desolder pins of the Heatsink B.

Step 3 Remove 1 screw at Rectifier Diode (D5801).
Step 4 Remove the Rectifier Diode (D5801) from the SMPS
P.C.B..
Caution: Avoid touching the Heatsink B due to its high 
temperature after prolonged use. Touching it may lead to 
injuries.

Step 1 Apply grease to the Heatsink B.
Step 2 Screw the Rectifier Diode (D5801) to the Heatsink B.
Caution: Ensure the Rectifier Diode (D5801) is tightly 
screwed to the Heatsink B.
Step 3 Fix the Heatsink B with Rectifier Diode (D5801) on the
SMPS P.C.B..
Caution: Ensure pins of the Rectifier Diode (D5801) are 
properly inserted into the SMPS P.C.B..

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Step 4 Solder pins of the Rectifier Diode (D5801) on the solder
side of the SMPS P.C.B..
Step 5 Solder pins of the Heatsink B.

• Refer to “Disassembly of SMPS P.C.B.”.

Step 1 Desolder pins of the Rectifier Diode (D5802) on the sol-
der side of the SMPS P.C.B.

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Step 2 Remove 1 screw at Rectifier Diode (D5802).
Step 3 Remove the Rectifier Diode (D5802) from the SMPS 
P.C.B..
Caution: Avoid touching the Heatsink B due to its high 
temperature after prolong use. Touching it may lead to 
injuries.

Step 1 Apply grease to the Heatsink B.
Step 2 Screw the Rectifier Diode (D5802) to the Heatsink B.
Caution: Ensure the Rectifier Diode (D5802) is tightly 
screwed to the Heatsink B.

Step 4 Solder pins of the Rectifier Diode (D5802) on the solder
side of SMPS P.C.B..