Replacement Of Audio Digital Power Amp Ic (Ic5000); Disassembly Of Main P.c.b - Panasonic SA-VK470EE Service Manual

SA-VK470EE
9.20. Replacement of Audio Digital
Power Amp IC (IC5000)
• • • • Follow the (Step 1) to (Step 5) of Item 9.4
• • • • Follow the (Step 1) to (Step 10) of Item 9.5
• • • • Follow the (Step 1) to (Step 7) of Item 9.19
Step 1 Flip over D-Amp P.C.B..
Step 2 Desolder pins of the Audio 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 Audio Digital Power Amp IC (IC5000) from the
heat sink unit.
Caution: Handle the heat sink power unit with caution due
to its high temperature after prolonged use. Touching it,
may lead to injuries.
9.20.1. Assembly of Audio Digital Power
Amp IC (IC5000)
Step 1 Fix the Audio Digital Power Amp IC onto the heatsink.
Step 2 Screw back TR Spring onto the heatsink.
Make sure it is well tighten to prevent overheat.
Note: Use a blower to remove the minute particles that might
caused left on the TR Spring.

9.21. Disassembly of Main P.C.B.

• • • • Follow the (Step 1) to (Step 5) of Item 9.4
• • • • Follow the (Step 1) to (Step 10) of Item 9.5
• • • • Follow the (Step 1) to (Step 5) of Item 9.19
Step 1 Detach 27P FFC cable at connector (CN2807) on Main
P.C.B..
Step 2 Detach 2P cable at connector (CN2813) on Main
P.C.B..
Step 3 Detach 21P FFC cable at connector (CN2803) on Main
P.C.B..
Step 4 Detach 10P FFC cable at connector (CN2806) at Main
P.C.B..
Step 5 Detach 2P cable at connector (CN2812) on Main
P.C.B..
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