Panasonic SA-VK725DEE, Service Manual

Page: 31 / 148

Step 1 Remove the 2 screws at heat sink and 1 screw at Power
P.C.B..
Note:
Insulate the Power P.C.B. with insulation material to avoid short
circuit.
· Replacement of the Power Amp IC or Voltage Regulator
Step 1 Remove 2 screws at the Power Amp IC and or 1
screw to Voltage Regulator.
Step 4 Desolder wire at holder H5804.
· Replacement of the Power Amp IC
Repeat Step 1 - Step 3 of Section 15.7 - Disassembly of
Power Amp P.C.B.
Step 2 Break the joints with a metal cutter as shown below.
Step 3 Unsolder the terminals to replace the components.
15.8. Disassembly of Power P.C.B.
· Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet
· Follow the (Step 1) of Item 15.4 - Disassembly of Rear Panel
·
Follow the (Step 1) - (Step 4) of Item 15.5 - Disassembly of DVD Changer Unit
· Follow the (Step 1) - (Step 2) of Item 15.6 - Disassembly of Main P.C.B.
31
SA-VK725DEE