Panasonic SA-PT850EE - Replacement of Digital Amp IC (IC5000); Disassembly of SMPS & AC-Inlet

10.18. Replacement of Digital Amp IC
(IC5000)
· Follow (Step 1) to (Step 3) of Item 10.3.
· Follow (Step 1) to (Step 9) of Item 10.17.
Step 1 Desolder pins of the digital amp IC (IC5000) on the back
side of D-Amp P.C.B.
Step 2 Remove 1 screw from the top of the heatsink unit A.
Step 3 Remove the TR spring in the direction of the arrow.
Step 4 Remove the digital amp IC (IC5000) from the heatsink
unit A.
Caution : Handle the heatsink unit A with caution due to its
high temperature after prolonged use. Touching it may lead to
injuries.
Note : For replacement of IC5200, IC5300 & IC5400, repeat
the (Step 1) to (Step 4). Refer to the diagrams of D-Amp P.C.B.
(Item 10.17) for location of the parts.
10.19. Disassembly of SMPS & AC-
Inlet P.C.B.
· Follow (Step 1) to (Step 3) of Item 10.3.
· Follow (Step 1) to (Step 2) of Item 10.17. for Disassembly
of D-Amp P.C.B. Bracket.
Step 1 Remove 3 screws from SMPS P.C.B.
Step 2 Remove 1 screw from AC-Inlet P.C.B.
Step 3 Remove the wire clamper to detach FFC cable from the
connector (CN5801) on SMPS P.C.B.
Step 4 Detach FFC cable from the connector (CN5802) on
SMPS P.C.B.
Step 5 Remove the lead clamper.
Step 6 Remove 1 screw from the rear panel.
Step 7 Release the tab of the rear panel in the direction of
arrow.
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SA-PT850EE