Panasonic SA-BT300PX, Service Manual

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Step 1 Desolder pins of the regulator diode (D5803) on the sol-
der side of SMPS P.C.B..
Step 2 Remove 1 screw from the regulator diode (D5803).
Step 3 Remove the regulator diode (D5803) from the SMPS
P.C.B..
Caution: Handle the SMPS P.C.B. with care 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 17.8) for
location of the electrical components.
9.25.2. Assembly of Regulator Diode
(D5803)
Step 1 Apply grease to the heatsink unit C.
Step 2 Mount the regulator diode (D5803) on to SMPS P.C.B..
Step 3 Fix and screw the regulator diode (D5803) to the heat-
sink unit C.
Caution: Ensure the regulator diode (D5803) is tightly
screwed to the heatsink unit C.
Step 4 Solder pins of the regulator diode (D5803) on the solder
side of SMPS P.C.B..
Caution: Ensure pins of the regulator diode (D5803) are
properly seated and soldered on SMPS P.C.B..
9.26. Disassembly of Wireless
Adapter P.C.B.
• Follow (Step 1) to (Step 3) of Item 9.3.
Step 1 Detach 19P FFC at the connector (CN6301) on Wire-
less Adapter P.C.B..
Step 2 Remove 1 screw on Wireless Adapter P.C.B..
Step 3 Remove wireless barrier.
Step 4 Remove Wireless Adapter P.C.B..