Panasonic SA-BTT460GS / SA-BTT460PH / SA-BTT480EE / SA-BTT480GS / SC-BTT480EEK Service Manual ▷ View online
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Step 7 Detach 9P Bridge connector at the connector (CN2309)
on Digital P.C.B..
Step 8 Detach 4P Cable at the connector (CN5400) on Damp
P.C.B..
on Digital P.C.B..
Step 8 Detach 4P Cable at the connector (CN5400) on Damp
P.C.B..
Step 9 Remove 4 screws.
Step 10 Lift up to remove the SMPS P.C.B..
Step 10 Lift up to remove the SMPS P.C.B..
Caution: During assembling, ensure that AC Inlet P.C.B.
and SMPS P.C.B. are properly located and seated onto the
bottom chassis.
and SMPS P.C.B. are properly located and seated onto the
bottom chassis.
70
12.15. Replacement of Switching Reg-
ulator IC (IC5701)
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of SMPS P.C.B.”.
• Refer to “Disassembly of SMPS P.C.B.”.
12.15.1. Disassembly of Switching Regula-
tor IC (IC5701)
Step 1 Place SMPS P.C.B. on an insulated material.
Step 2 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 3 Desolder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 4 Desolder pins of the Heatsink A.
Step 2 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 3 Desolder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 4 Desolder pins of the Heatsink A.
Step 5 Remove the Switching Regulator Unit in the direction of
arrow.
Caution: Avoid touching the Switching Regulator Unit due
to its high temperature after prolonged use. Touching it
may lead to injuries.
arrow.
Caution: Avoid touching the Switching Regulator Unit due
to its high temperature after prolonged use. Touching it
may lead to injuries.
Step 6 Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 7 Remove the Switching Regulator IC (IC5701) from the
Heatsink A.
(IC5701).
Step 7 Remove the Switching Regulator IC (IC5701) from the
Heatsink A.
71
12.15.2. Assembly of Switching Regulator
IC (IC5701)
Step 1 Apply Grease to the back of Switching Regulator IC
(IC5701).
Step 2 Fix and screw the Switching Regulator IC (IC5701) to
the Heatsink A.
Caution: Ensure that the Switching Regulator IC (IC5701) is
properly fixed and fully screwed onto Heatsink A.
(IC5701).
Step 2 Fix and screw the Switching Regulator IC (IC5701) to
the Heatsink A.
Caution: Ensure that the Switching Regulator IC (IC5701) is
properly fixed and fully screwed onto Heatsink A.
Step 3 Fix the Switching Regulator Unit into the SMPS P.C.B..
Caution: Ensure that Switching Regulator Unit is properly
seated into SMPS P.C.B..
Caution: Ensure that Switching Regulator Unit is properly
seated into SMPS P.C.B..
Step 4 Solder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 5 Solder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 6 Solder pins of the Heatsink A.
the solder side of SMPS P.C.B..
Step 5 Solder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 6 Solder pins of the Heatsink A.
72
12.16. Replacement of Diode (D5702)
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of SMPS P.C.B.”.
• Refer to “Disassembly of SMPS P.C.B.”.
12.16.1. Disassembly of Diode (D5702)
Step 1 Place the SMPS P.C.B. on an insulated material.
Step 2 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 3 Desolder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 4 Desolder pins of the Heatsink A.
Step 2 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 3 Desolder pins of the Diode (D5702) on the solder side of
SMPS P.C.B..
Step 4 Desolder pins of the Heatsink A.
Step 5 Remove the Switching Regulator Unit.
Caution: Avoid touching the Switching Regulator Unit due
to its high temperature after prolonged use. Touching it
may lead to injuries.
Caution: Avoid touching the Switching Regulator Unit due
to its high temperature after prolonged use. Touching it
may lead to injuries.
Step 6 Remove 1 screw from the Diode (D5702).
Step 7 Remove Diode (D5702) from the Heatsink A.
Step 7 Remove Diode (D5702) from the Heatsink A.
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