DOWNLOAD Panasonic SA-BFT800EE / SA-BFT800EEK Service Manual ↓ Size: 15.52 MB | Pages: 127 in PDF or view online for FREE

Model
SA-BFT800EE SA-BFT800EEK
Pages
127
Size
15.52 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / BLU-RAY DISC HOME THEATER SOUND SYSTEM
File
sa-bft800ee-sa-bft800eek.pdf
Date

Panasonic SA-BFT800EE / SA-BFT800EEK Service Manual ▷ View online

105
10.28. Disassembly of SMPS P.C.B.
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of Digital Shield”.
• Refer to “Disassembly of Power P.C.B.”.
Step 1  Detach 10P Cable at the connector (CN2004) on Digital
P.C.B..
Step 2  Detach 6P FFC at the connector (CN5400) on D-Amp
P.C.B..
Step 3  Lift up the wire clamper to release 4P wire.
Step 4  Cut 2 Lead Clampers.
Step 5  Remove 5 screws.
Step 6  Lift up SMPS P.C.B..
Step 7  Desolder Red (TL11) & Black (TL21) wires on AC Inlet
P.C.B..
Step 8  Lift up SMPS P.C.B..
106
10.29. Replacement of Switching Reg-
ulator IC (IC5701)
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of Digital Shield”.
• Refer to “Disassembly of Power P.C.B.”.
• Refer to “Disassembly of SMPS P.C.B.”.
10.29.1. Disassembly of Switching Regula-
tor IC (IC5701)
Step 1 Desolder pins of the Switching Regulator IC (IC5701) on
the solder side of SMPS P.C.B..
Step 2 Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 3 Remove the Switching Regulator IC (IC5701).
Caution: Avoid touching the Heatsink Unit B due to its high 
temperature after prolonged use. Touching it may lead to 
injuries.
Note:
 Refer to the diagrams of SMPS P.C.B. (Item 18.4) for
location of the part.
10.29.2. Assembly of Switching Regulator
IC (IC5701)
Step 1 Apply grease to the Heatsink Unit B.
Step 2 Fix the Switching Regulator IC (IC5701) onto the SMPS
P.C.B..
Step 3 Fix and screw the Switching Regulator IC (IC5701) to
the Heatsink Unit B.
Caution: Ensure the Switching Regulator IC (IC5701) is
tightly screwed to the Heatsink Unit B.
Step 4 Solder pins of the Switch Regulator IC (IC5701) on the
solder side of SMPS P.C.B..
107
Caution: Ensure pins of the Switching Regulator IC 
(IC5701) are properly seated and soldered on SMPS P.C.B..
10.30. Replacement of Rectifier Diode
(D5702)
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of Digital Shield”.
• Refer to “Disassembly of Power P.C.B.”.
• Refer to “Disassembly of SMPS P.C.B.”.
10.30.1. Disassembly of Rectifier Diode
(D5702)
Step 1 Desolder pins of the Rectifier Diode (D5702) on the sol-
der side of SMPS P.C.B..
Step 2 Desolder pins of the Heatsink Unit B.
Step 3 Remove 1 screw from the Switching Regulator IC
(IC5701).
Step 4 Remove the Heatsink Unit B together with Rectifier
Diode (D5702).
Step 5 Remove 1 screw from the Rectifier Diode (D5702).
Step 6 Remove the Rectifier Diode (D5702) from the Heatsink
Unit B.
Caution: Avoid touching the Heatsink Unit B due to its high 
temperature after prolonged use. Touching it may lead to 
injuries.
Note:
 Refer to the diagrams of SMPS P.C.B. (Item 18.4) for
location of the part.
108
10.30.2. Assembly of Rectifier Diode
(D5702)
Step 1 Apply grease to the Heatsink Unit B.
Step 2 Fix and screw the Rectifier Diode (D5702) to the Heat-
sink Unit B.
Caution: Ensure the Rectifier Diode (D5702) is tightly 
screwed to the Heatsink Unit B.
Step 3
 Fix the Heatsink Unit B with Rectifier Diode (D5702)
onto SMPS P.C.B..
Caution: Ensure the Heatsink Unit B with Rectifier Diode 
(D5702) are properly seated on SMPS P.C.B..
Step 4
 Fix and screw the Switching Regulator IC (IC5701) to
the Heatsink Unit B.
Step 5 Solder pins of the Rectifier Diode (D5702) on the solder
side of SMPS P.C.B..
Step 6 Solder pins of the Heatsink Unit B on the solder side of
SMPS P.C.B..
Caution: Ensure pins of the Rectifier Diode (D5702) are 
properly seated before soldered onto SMPS P.C.B..
10.31. Replacement of Regulator
Diode (D5802)
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of Digital Shield”.
• Refer to “Disassembly of Power P.C.B.”.
• Refer to “Disassembly of SMPS P.C.B.”.
10.31.1. Disassembly of Regulator Diode
(D5802)
Step 1 Desolder pins of the Regulator Diode (D5802) on the
solder side of SMPS P.C.B..
Step 2 Desolder pins of the Heatsink Unit A.
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