Panasonic SA-MAX700GSK Service Manual ▷ View online
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10.20. Disassembly of Digital Ampli-
fier IC (IC2501/IC2502/IC2503/
IC2504)
IC2504)
• Refer to “Disassembly of Main P.C.B.”.
10.20.1. Disassembly of Digital Amplifier IC
(IC2501/IC2502/IC2503/IC2504)
Caution: Handle the Main P.C.B. with caution due to it’s
high temperature after prolonged use. Touching it may
lead to injuries.
Step 1 Place the Main P.C.B. on an insulated material.
Step 2 Remove 5 screws.
high temperature after prolonged use. Touching it may
lead to injuries.
Step 1 Place the Main P.C.B. on an insulated material.
Step 2 Remove 5 screws.
Step 3 Lift up the Main P.C.B. as arrow shown.
Caution: Keep the Heatsink Spacers in safe place. Avoid
denting it, place it back during assembling.
Caution: Keep the Heatsink Spacers in safe place. Avoid
denting it, place it back during assembling.
Step 4 Desolder the pins of the Digital Amplifier IC.
Step 5 Remove the Digital Amplifier IC.
Step 5 Remove the Digital Amplifier IC.
10.20.2. Assembly of Digital Amplifier IC
(IC2501/IC2502/IC2503/IC2504)
Step 1 Fix the Digital Amplifier IC onto the Main P.C.B..
Step 2 Solder the pins of the Digital Amplifier IC.
Cautions: Ensure that the pins of the Digital Amplifier IC is
positioned correctly on the Main P.C.B. before soldering.
Step 2 Solder the pins of the Digital Amplifier IC.
Cautions: Ensure that the pins of the Digital Amplifier IC is
positioned correctly on the Main P.C.B. before soldering.
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Step 3 Fix Heatsink spacers onto Main Heatsink..
Caotion: Ensure that the Heatsink Spacers are properly
located and seated flatly onto Main Heatsink.
Step 4 Apply grease to the Main Heatsink as indicate in the dia-
gram..
Caution: Ensure Grease thickness is about 0.2mm.
Caotion: Ensure that the Heatsink Spacers are properly
located and seated flatly onto Main Heatsink.
Step 4 Apply grease to the Main Heatsink as indicate in the dia-
gram..
Caution: Ensure Grease thickness is about 0.2mm.
Step 5 Upset the Main P.C.B..
Step 6 Fix 5 screws.
Step 6 Fix 5 screws.
10.21. Disassembly of SMPS P.C.B.
and Voltage Selector P.C.B.
• Refer to “Disassembly of Top Cabinet”.
Step 1 Remove 2 screws.
Step 2 Detach 13P Cable at a connector (CN5802) on the
SMPS P.C.B..
Step 3 Detach 2P Wire at a connector (CN2006) on the Main
P.C.B..
Step 4 Remove 1 screw.
SMPS P.C.B..
Step 3 Detach 2P Wire at a connector (CN2006) on the Main
P.C.B..
Step 4 Remove 1 screw.
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Step 5 Detach the Voltage Selector P.C.B. from the rear panel
as arrow shown.
as arrow shown.
Step 6 Remove 2 screws
Step 7 Remove the Inner Fan Unit.
Caution: Keep the Fan Fixtures in safe place, place it back
during assembling.
Step 7 Remove the Inner Fan Unit.
Caution: Keep the Fan Fixtures in safe place, place it back
during assembling.
Step 8 Remove the SMPS P.C.B..
Caution: During assembling, ensure that the SMPS P.C.B.
is properly located & fully seated onto the Inner Chassis
Unit.
is properly located & fully seated onto the Inner Chassis
Unit.
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10.22. Replacement of Switching Reg-
ulator (Q5700)
• Refer to “Disassembly of SMPS P.C.B.”.
10.22.1. Disassembly of Switching Regula-
tor (Q5700)
Step 1 Desolder pins of the Switching Regulator (Q5700) on
the solder side of the SMPS P.C.B.
Step 2 Desolder pins of the Heatsink A.
the solder side of the SMPS P.C.B.
Step 2 Desolder pins of the Heatsink A.
Step 3 Remove the Heatsink A with the Switching Regulator
(Q5700).
Step 4 Remove 1 screw.
Step 5 Remove the Switching Regulator (Q5700) from the
Heatsink A.
Caution: Avoid touching the Heatsink A due to its high
temperature after prolong use. Touching it may lead to
injuries.
(Q5700).
Step 4 Remove 1 screw.
Step 5 Remove the Switching Regulator (Q5700) from the
Heatsink A.
Caution: Avoid touching the Heatsink A due to its high
temperature after prolong use. Touching it may lead to
injuries.
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