Replacement Of Regulator Diode (D5802) - Panasonic SA-PT464P Service Manual

Step 1 Desolder pins of the regulator diode (D5801) on the sol-
der side of SMPS P.C.B.
Step 2 Remove 1 screw from the regulator diode (D5801).
Step 3 Remove the regulator diode (D5801) from the SMPS
P.C.B.
Caution: Handle the heatsink unit C 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 electrical components.
9.22.2. Assembly of Regulator Diode
(D5801)
Step 1 Apply grease to the heatsink unit C.
Step 2 Mount the regulator diode (D5801) on SMPS P.C.B.
Caution: Ensure pins of the regulator diode (D5801) are
properly seated and soldered on SMPS P.C.B.
Step 3 Fix and screw the regulator diode (D5801) to the heat-
sink unit C.
Caution: Ensure the regulator diode (D5801) is tightly
screwed to the heatsink unit C.
Step 4 Solder pins of the regulator diode (D5801) on the solder
side of SMPS P.C.B.
9.23. Replacement of Regulator
Diode (D5802)
9.23.1. Disassembly of Regulator Diode
(D5802)
• 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.
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