Replacement Of Regulator Diode; Assembly Of Switch Regulator Diode - Panasonic SA-AK770PL Service Manual

Step 3 Remove 1 screw from the Switch Regulator Diode
(D5702).
Step 4 Remove the heat sink Unit B in the direction of arrows.
Step 5 Remove 1 screw from the Switch Regulator Diode.
(D5702).
Step 6 Remove the Switch Regulator Diode (D5702) from the
heat sink Unit B.
Caution: Handle the heat sink 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 19.6.) for
location of the part.
8.31.1. Assembly of Switch Regulator
Diode (D5702)
Step 1 Apply grease to the heat sink Unit B.
Step 2 Fix and screw the Switch Regulator Diode (D5702) to
the heat sink Unit B.
Special Note: Ensure the Switch Regulator Diode (D5702) is
tightly screwed to the heat sink Unit B.
Step 3 Fix the heat sink Unit B on SMPS P.C.B. in the direction
of arrows.
Step 4 Fix and screw the Switch Regulator IC (IC5701) to the
heat sink Unit B.
Special Note: Ensure the heat sink Unit B is properly seated
on SMPS P.C.B..
Step 5 Solder pins of the Switch Regulator Diode (D5702) on
the reverse side of SMPS P.C.B..
Step 6 Solder pins of the heat sink Unit B on the reverse side
of SMPS P.C.B..
Special Note: Ensure pins of the switch regulator diode
(D5702) are properly seated and soldered on SMPS P.C.B..
8.32. Replacement of Regulator
Diode (D5801)
• Follow the (Step 1) - (Step 5) of Item 8.4
• Follow the (Step 1) - (Step 12) of Item 8.5
• Follow the (Step 1) - (Step 6) of Item 8.22
• Follow the (Step 1) - (Step 5) of Item 8.29
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SA-AK770PL / SA-AK770GCP