Panasonic SA-PT460, Service Manual

Page: 53 / 154

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.
Step 4 Solder pins of the digital amp IC (IC5300) on the
reverse side of D-Amp P.C.B.
Special Note: Ensure pins of the digital amp IC (IC5300) are
properly seated and soldered on D-Amp P.C.B.
Step 5 Follow (Step 5) to (Step 6) of Item 9.17.1
9.20. Replacement of Digital Amp IC
(IC5400)
• • • •
Follow (Step 1) to (Step 3) of Item 9.3.
• • • •
Follow (Step 1) to (Step 2) of Item 9.17.
Step 1 Desolder pins of the digital amp IC (IC5400) on the
reverse 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 digital amp IC (IC5400) 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.
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SA-PT460EB / SA-PT460EG