49
9.26. Replacement of Power Ampli-
fier IC (IC1)
• Refer to "Disassembly of Horizontal Main P.C.B. and Vertical
Main P.C.B.".
9.26.1. Disassembly of Power Amplifier IC
(IC1)
Caution : Handle the heatsink unit and P.C.B. with caution
due to its high temperature after prolonged use. Touching
it may lead to injuries.
Step 1 : Desolder pins of Heatsink Unit on the Vertical Main
P.C.B. (Side A).
Step 2 : Remove the Heatsink Unit.
Step 3 : Desolder pins of Power Amplifier IC (IC1) on the Verti-
cal Main P.C.B. (Side B).
Step 4 : Remove the Power Amplifier IC (IC1).
9.26.2. Assembly of Power Amplifier IC
(IC1)
Step 1 : Fix the Power Amplifier IC (IC1) onto Vertical Main
P.C.B.
Step 2 : Solder pins of the Power Amplifier IC (IC1).
Caution : Ensure the Power Amplifier IC (IC1) is seated
properly onto the Vertical Main P.C.B. before soldering.
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