Replacement Of Regulator Diode (D5803) - Panasonic SA-AK980PU Service Manual

9.25. Replacement of Regulator
Diode (D5803)
• Follow (Step 1) to (Step 5) of Item 9.3
• Follow (Step 1) to (Step 6) of Item 9.4
• Follow (Step 1) to (Step 6) of Item 9.14
• Follow (Step 1) to (Step 4) of Item 9.20
9.25.1. Disassembly of Regulator Diode
(D5803)
Step 1 : Desolder pins of the Regulator Diode (D5803) on the
solder side of SMPS P.C.B..
Step 2 : Remove 1 screw.
Step 3 : Remove the Regulator Diode (D5803) from the Heat-
sink Unit C.
Caution : During replacement of the part, avoid touching
the heatsink, it may lead to injuries.
9.25.2. Assembly of Regulator Diode
(D5803)
Step 1 : Apply grease to the Heatsink Unit C.
Step 2 : Mount & screw the regulator diode (D5803) to the
Heatsink Unit C on SMPS P.C.B..
Caution : Ensure the Regulator Diode (D5803) is well tight-
ened to the Heatsink Unit C.
Step 3 : Solder pins of the Regulator Diode (D5803) on the sol-
der side of SMPS P.C.B..
Caution : Ensure pins of the regulator diode (D5803) are
properly seated and soldered on SMPS P.C.B..
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