Panasonic SA-AKX92PH Service Manual page 64

Step 4 Remove Surround D-Amp Unit as arrow shown.
Caution: During assembling, ensure that Surround D-Amp
Unit is catched onto Rear Panel properly.
Step 5 Remove 1 screw.
Step 6 Remove Surround D-Amp P.C.B. as arrow shown.
Caution: During assembling, ensure that Surround D-Amp
P.C.B. is inserted to the catches & seated at the locator
properly.
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