Panasonic SA-AK270EB Service Manual page 44

SA-AK270EB / SA-AK270EG
Step 6 Remove 3 screws from D-Amp P.C.B..
Step 7 Lift up D-Amp P.C.B. as arrow shown.
Note: During reassembling procedures, ensure the P.C.B. is
seated properly at the chassis support.
9.20. Replacement of Digital Amp IC
(IC5000)
Follow the (Step 1) - (Step 5) of Item 9.4
Follow the (Step 1) - (Step 7) of Item 9.5
Follow the (Step 1) - (Step 7) of Item 9.19
Step 1 Flip over D-Amp P.C.B..
Step 2 Desolder pins of the Digital Power Amp IC (IC5000) on
the reverse side of D-Amp P.C.B..
Step 3 Remove 1 screw.
Step 4 Remove TR Spring in the direction of arrow shown.
Step 5 Remove Digital Power Amp IC (IC5000) from the heat
sink unit A.
Caution: Handle the heat sink power unit A with caution
due to its high temperature after prolonged use. Touching
it, may lead to injuries.
9.20.1. Assembly of Digital Power Amp IC
(IC5000)
Step 1 Fix the Digital Power Amp IC onto the heat sink unit A.
Step 2 Screw back TR Spring onto the heat sink unit A.
44