Panasonic SA-BTT460GS / SA-BTT460PH / SA-BTT480EE / SA-BTT480GS / SC-BTT480EEK Service Manual ▷ View online
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10.1.1.
SMPS P.C.B.
Figure 10-1 SMPS P.C.B.
JW2
Photocoupler:
PC5702, D5799
PC5702, D5799
Switching IC: IC5799
Switching IC: IC5701
Transformer: T5701
Photocoupler: PC5720
Photocoupler: PC5720
Diode: D5802
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10.1.2.
Digital P.C.B.
Figure 10- 2 Digital P.C.B.
(Side A of Digital P.C.B.)
(Side B of Digital P.C.B.)
IC2901
Transistor : Q2902
Transistor : Q2903
D2306, LB2300, LB2302, LB2303
IC2302, LB2301
Inductor : L2902
Inductor : L2908
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11 Service Fixture & Tools
Prepare service tools before process service position.
Ref. No
Service Tools
Remarks
SFT1
Digital P.C.B. (P59301) - Panel P.C.B. (P6801),
Digital P.C.B. (CN2303) - D-Amp P.C.B. (CN5402)
Digital P.C.B. (CN2303) - D-Amp P.C.B. (CN5402)
RFKZ0216 (23P)
[SPG]
SFT2
Digital P.C.B. (CN2309) - SMPS P.C.B. (JW2)
RFKZ0323 (9P)
[SPG]
SFT3
Digital P.C.B. (CN2304) - Panel P.C.B. (P6001)
RFKZ0327 (15P)
[SPG]
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12 Disassembly and Assembly Instructions
Caution Note:
• Illustration is based on SA-BTT460PH-K.
• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-
• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-
nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service
manual)
manual)
• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)
• During disassembly and assembly, please ensure proper service tools, equipment or jigs is being used.
• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the ser-
• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the ser-
vice manual.
• Select items from the following indexes when disassembly or replacement are required.
• Disassembly of Top Cabinet
• Replacement of Tray Ornament
• Disassembly of Front Panel Block
• Disassembly of Tact P.C.B. and Power Button P.C.B.
• Disassembly of Panel P.C.B.
• Disassembly of Rear Panel
• Disassembly of Fan Unit
• Disassembly of Digital P.C.B.
• Disassembly of Damp P.C.B.
• Replacement of Digital Amplifier IC (IC5100/IC5200/IC5300)
• Disassembly of Voltage Selector P.C.B., AC Inlet P.C.B. and SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Diode (D5702)
• Replacement of Diode (D5802)
• Replacement of Diode (D5803)
• Disassembly of BD Mechanism
• Replacement of Traverse Unit
• Replacement of Optical Pick-up Unit
• Disassembly of Top Cabinet
• Replacement of Tray Ornament
• Disassembly of Front Panel Block
• Disassembly of Tact P.C.B. and Power Button P.C.B.
• Disassembly of Panel P.C.B.
• Disassembly of Rear Panel
• Disassembly of Fan Unit
• Disassembly of Digital P.C.B.
• Disassembly of Damp P.C.B.
• Replacement of Digital Amplifier IC (IC5100/IC5200/IC5300)
• Disassembly of Voltage Selector P.C.B., AC Inlet P.C.B. and SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Diode (D5702)
• Replacement of Diode (D5802)
• Replacement of Diode (D5803)
• Disassembly of BD Mechanism
• Replacement of Traverse Unit
• Replacement of Optical Pick-up Unit
12.1. Types of Screws Used
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