Replacement Of Regulator Ic (Ic2903) - Panasonic SA-PT560E Service Manual

SA-PT560E / SA-PT560EB / SA-PT560EG
the Power Supply P.C.B.
Step 7 Remove Power Supply P.C.B.
Special Note: During reassembling procedures, ensure the
P.C.B. is seated properly at the locators.
9.27. Replacement of Regulator IC
(IC2903)
• • • • Follow (Step 1) to (Step 3) of Item 9.3.
• • • • Follow (Step 1) to (Step 5) of Item 9.7.
• • • • Follow (Step 1) to (Step 8) of Item 9.14.
• • • • Follow (Step 1) to (Step 7) of Item 9.26.
Step 1 Desolder pins of the regulator IC (IC2903) on the
reverse side of Power Supply P.C.B.
Step 2 Desolder pins of the heatsink extrussion.
Step 3 Remove the heatsink extrussion in the direction of
arrows.
Step 4 Remove 1 screw from the regulator IC (IC2903).
Step 5 Remove the regulator IC (IC2903) from the heatsink
extrussion.
Caution: Handle the heatsink extrussion with caution due
to its high temperature after prolonged use. Touching it
may lead to injuries.
Note: Refer to the diagrams of Power Supply P.C.B. (Item
20.3) for location of the part.
9.27.1. Assembly of Regulator IC (IC2903)
Step 1 Apply grease to the heatsink extrussion.
Step 2 Fix and screw the regulator IC (IC2903) to the heatsink
extrussion.
Special Note: Ensure the regulator IC (IC2903) is tighly
screwed to the heatsink extrussion.
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