Replacement Of Switching Regulator Ic (Ic2903) - Panasonic SA-PT464P Service Manual

Step 3 Detach 8P cable at the connector (CN5500) on D-Amp
P.C.B.
Step 4 Twist the wire clamper to detach 8P cable at the con-
nector (CN5500) on D-Amp P.C.B.
Step 5 Release P.C.B. Spacer on SMPS P.C.B.
Step 6 Flip & position SMPS P.C.B. according to diagram
shown.
Step 7 Desolder Black wire (TL2) and Red wire (TL1) on solder
sie of SMPS P.C.B.
Step 8 Remove SMPS P.C.B.
Special Note: During reassembling procedures, ensure the
P.C.B. is seated properly at the locators.
9.19. Replacement of Switching Reg-
ulator IC (IC2903)
9.19.1. Disassembly of Switching Regula-
tor IC (IC2903)
• Follow (Step 1) to (Step 3) of Item 9.3.
• Follow (Step 1) to (Step 5) of Item 9.6.
• Follow (Step 1) to (Step 9) of Item 9.11.
• Follow (Step 1) to (Step 8) of Item 9.18.
Step 1 Desolder pins of the switching regulator IC (IC2903) on
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