Replacement Of Audio Digital Power Amp Ic (Ic5300) - Panasonic SA-PT470EB Service Manual

9.17. Replacement of Audio Digital
Power Amp IC (IC5300)
9.17.1. Disassembly
Power Amp IC (IC5300)
• Follow (Step 1) to (Step 3) of Item 9.3.
• Follow (Step 1) to (Step 2) of Item 9.15.
Step 1 Desolder pins of the Audio Digital Power Amp IC
(IC5300) on the solder side of D-Amp P.C.B.
Step 2 Remove 1 screw.
Step 3 Remove the TR spring in the direction of arrows.
Step 4 Remove the Audio Digital Power Amp IC (IC5300) from
the D-Amp P.C.B.
of Audio Digital
Caution: Handle the heatsink unit A with caution due to its
high temperature after prolonged use. Touching it may
lead to injuries.
Note: Refer to the diagrams of D-Amp P.C.B. (Item 18.4.) for
location of the electrical components.
9.17.2. Assembly of Audio Digital Power
Amp IC (IC5300)
Step 1 Mount the Audio Digital Power Amp IC (IC5300) to the
D-Amp P.C.B.
Caution: Ensure pins of the Audio Digital Power Amp IC
(IC5300) are properly seated and soldered on D-Amp P.C.B.
Step 2 Screw the TR spring to the heatsink unit A.
Step 3 Use a blower to remove the minute particles that might
be caused after the process of the screwing TR spring to the
heatsink unit A.
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