Panasonic SA-BTT770EG / SA-BTT770EP / SA-BTT775EB / SA-BTT775EE / SA-BTT775GN / SC-BTT775EEK Service Manual ▷ View online
53
8.1.1.
SMPS P.C.B.
Figure 1. SMPS P.C.B.
Photocouple:
PC5702, PC5799
Switching IC: IC5799
Switching Regulator IC: IC5701
Transformer: T5701
Photocouple: PC5720
Thermal Diode: D5802
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8.1.2.
Digital P.C.B.
Fig 2. Digital P.C.B.
(Side B of Digital P.C.B.)
(Side A of Digital P.C.B.)
Transistor : QR7071
Transistor : Q2902
Transistor : Q2903
INTEGRATED CIRCUIT : IC2901
Inductor : LB2843
Inductor : L2908
Inductor : L2902
Resistor : R7003
Resistor : R2908
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9 Service Fixture & Tools
9.1.
Service Tools and Equipment
Prepare service tools before process service position.
Ref. No
Service Tools
Remarks
SFT1
Digital P.C.B. (CN2002) - Panel P.C.B. (P6001)
RFKZBTT270K1 (13P FFC)
SFT2
Digital P.C.B. (CN2004) - SMPS P.C.B. (JW2)
RFKZBTT270K2 (10P FFC)
SFT3
Digital P.C.B. (CN2006) - D.Amp P.C.B. (CN5402)
RFKZBTT270K3 (18P FFC)
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10 Disassembly and Assembly Instructions
• The illustration in this section shows the image of SA-BTT770EG/EP, SA-BTT775EB/GN.
Caution Note:
• 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
• Disassembly of Wireless Adapter P.C.B.
• Disassembly of Rear Panel
• Disassembly of Fan
• Disassembly of Front Panel Block Assembly
• Disassembly of WI-FI P.C.B. (For All except SA-BTT775EE)
• Disassembly of Panel P.C.B.
• Disassembly of Operation Button P.C.B.
• Disassembly of Power Button P.C.B.
• Replacement of iPod Cradle Assembly
• Disassembly of iPod P.C.B.
• Replacement of Front Lid Assembly
• Disassembly of BD Mechanism Unit (BRS1P)
• Disassembly of Dust Cover
• Replacement of Tray
• Replacement of Traverse Unit
• Disassembly of Top Cabinet
• Disassembly of Wireless Adapter P.C.B.
• Disassembly of Rear Panel
• Disassembly of Fan
• Disassembly of Front Panel Block Assembly
• Disassembly of WI-FI P.C.B. (For All except SA-BTT775EE)
• Disassembly of Panel P.C.B.
• Disassembly of Operation Button P.C.B.
• Disassembly of Power Button P.C.B.
• Replacement of iPod Cradle Assembly
• Disassembly of iPod P.C.B.
• Replacement of Front Lid Assembly
• Disassembly of BD Mechanism Unit (BRS1P)
• Disassembly of Dust Cover
• Replacement of Tray
• Replacement of Traverse Unit
(Note: This section is for reference only)
• Replacement of Slide Cam
• Replacement of Belt
• Replacement of Pulley Gear
• Replacement of Driver Gear
• Replacement of Loading P.C.B.
• Replacement of Loading Motor
• Disassembly of AC Inlet P.C.B.
• Disassembly of D-Amp P.C.B.
• Replacement of Digital Amplifier IC (IC5100/IC5200/IC5300)
• Disassembly of Digital P.C.B.
• Disassembly of AV P.C.B.
• Disassembly of SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Rectifier Diode (D5702)
• Replacement of Thermal Diode (D5802)
• Replacement of Regulator Diode (D5803)
• Replacement of Belt
• Replacement of Pulley Gear
• Replacement of Driver Gear
• Replacement of Loading P.C.B.
• Replacement of Loading Motor
• Disassembly of AC Inlet P.C.B.
• Disassembly of D-Amp P.C.B.
• Replacement of Digital Amplifier IC (IC5100/IC5200/IC5300)
• Disassembly of Digital P.C.B.
• Disassembly of AV P.C.B.
• Disassembly of SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Rectifier Diode (D5702)
• Replacement of Thermal Diode (D5802)
• Replacement of Regulator Diode (D5803)
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