Panasonic SA-BFT800EE / SA-BFT800EEK Service Manual ▷ View online
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Step 2 Remove the Belt Pulley.
Step 3 Remove the Gear Middle.
10.25. Disassembly of Power P.C.B.
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of SMPS Shield Unit”.
Step 1 Remove 2 screws.
Step 2 Lift up the Power P.C.B. Unit.
Step 2 Lift up the Power P.C.B. Unit.
Step 3 Detach 3P wire at the connector (CN5802) on SMPS
P.C.B..
Step 4 Detach 3P wire at the connector (CN2917) on Power
P.C.B..
P.C.B..
Step 4 Detach 3P wire at the connector (CN2917) on Power
P.C.B..
102
Caution: During assembling, ensure that the two 3P wires
are dressed properly according to diagram shown.
are dressed properly according to diagram shown.
Step 5 Release 1 catch.
Step 6 Remove Power P.C.B..
Caution: During assembling, ensure that Power P.C.B. is
properly located and fully catched onto Power P.C.B. Sup-
port.
Step 6 Remove Power P.C.B..
Caution: During assembling, ensure that Power P.C.B. is
properly located and fully catched onto Power P.C.B. Sup-
port.
103
10.26. Disassembly of D-Amp P.C.B.
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of SMPS Shield Unit”.
Step 1 Detach 6P cable at the connector (CN5400) on D-Amp
P.C.B..
Step 2 Detach 17P FFC at the connector (CN5402) on D-Amp
P.C.B..
Step 3 Lift up the wire clamper.
Step 4 Detach 4P speaker wire at the connector (CN5405) on
D-Amp P.C.B..
P.C.B..
Step 2 Detach 17P FFC at the connector (CN5402) on D-Amp
P.C.B..
Step 3 Lift up the wire clamper.
Step 4 Detach 4P speaker wire at the connector (CN5405) on
D-Amp P.C.B..
Step 5 Remove 4 screws.
Step 6 Remove D-Amp P.C.B..
Step 6 Remove D-Amp P.C.B..
Caution (1): During assembling, ensure that D-Amp P.C.B.
is properly located & fully seated onto SMPS Chassis.
Caution (2): During assembling, ensure that 6P cable is
dress properly according to diagram shown.
Caution (3): For 4P speaker wire, refer to Item 10.9.2 for
wire dressing.
is properly located & fully seated onto SMPS Chassis.
Caution (2): During assembling, ensure that 6P cable is
dress properly according to diagram shown.
Caution (3): For 4P speaker wire, refer to Item 10.9.2 for
wire dressing.
10.27. Replacement of Digital Ampli-
fier (IC5100)
• Refer to “Disassembly of Back Cabinet Assembly”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of D-Amp P.C.B.”.
• Refer to “Disassembly of SMPS Shield Unit”.
• Refer to “Disassembly of D-Amp P.C.B.”.
10.27.1. Disassembly of Digital Amplifier
(IC5100)
Caution: Handle the D-Amp heatsink and P.C.B. with cau-
tion due to its high temperature after prolonged use.
Touching it may lead to injuries.
Step 1 Place the D-Amp P.C.B. on an insulated material.
Step 2 Remove 2 screws.
tion due to its high temperature after prolonged use.
Touching it may lead to injuries.
Step 1 Place the D-Amp P.C.B. on an insulated material.
Step 2 Remove 2 screws.
Step 3 Lift up the D-Amp P.C.B. as arrow shown.
104
Caution: Keep the Heatsink Spacer in safe place. Place it
back during assembling.
back during assembling.
Step 4 Desolder pins of Digital Amplifier (IC5100).
Step 5 Remove Digital Amplifier (IC5100).
Note: Refer to diagram of D-Amp P.C.B. (Item 18.2) for location
of part.
Step 5 Remove Digital Amplifier (IC5100).
Note: Refer to diagram of D-Amp P.C.B. (Item 18.2) for location
of part.
10.27.2. Assembly of Digital Amplifier
(IC5100)
Step 1 Fix the Digital Amplifier (IC5100) onto the D-Amp
P.C.B..
Step 2 Solder pins of Digital Amplifier (IC5100).
Step 3 Apply grease on the top of the Digital Amplifier
(IC5100).
P.C.B..
Step 2 Solder pins of Digital Amplifier (IC5100).
Step 3 Apply grease on the top of the Digital Amplifier
(IC5100).
Caution: Ensure that the pins of Digital Amplifier (IC5100)
is positioned correctly on D-Amp P.C.B. before soldering
check solderability.
is positioned correctly on D-Amp P.C.B. before soldering
check solderability.
Step 4 Upset the D-Amp P.C.B..
Caution: During assembling, ensure that heatsink spacers
are properly located & fully seated flatly onto D-Amp Heat-
sink in the correct direction.
Caution: Ensure that D-Amp P.C.B. is properly located and
fully seated on to D-Amp Heatsink before screwing.
Step 5 Fix 2 screws.
Caution: During assembling, ensure that heatsink spacers
are properly located & fully seated flatly onto D-Amp Heat-
sink in the correct direction.
Caution: Ensure that D-Amp P.C.B. is properly located and
fully seated on to D-Amp Heatsink before screwing.
Step 5 Fix 2 screws.
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