Panasonic SA-AKX74PH Service Manual page 47

Step 3 Remove the Heatsink Clip.
Step 4 Remove the Audio Digital Amp IC (IC5800).
11.16.2. Assembly of Audio Digital Amp IC
(IC5800)
Step 1 Apply grease to the Heatsink.
Step 2 Fix the Audio Digital Amp IC (IC5800) on the Main
P.C.B..
Caution: Ensure pins of the Audio Digital Amp IC (IC5800)
are properly inserted into the Main P.C.B..
Step 3 Fix the Heatsink Clip to the Heatsink.
Caution: During assembling, ensure that the Heatsink Clip
is catched onto the Heatsink properly.
Step 4 Solder pins of the Audio Digital Amp IC (IC5800) on the
solder side of the Main P.C.B..
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