SB-WA101E / SB-WA101EB CONTENTS Page Page 1 Safety Precautions 6.7. Disassembly of Transformer P.C.B. 1.1. General Guidelines 6.8. Disassembly of Level control P.C.B. 1.2. Caution for AC Cord 7 Connection of the Speaker Wiring 1.3. Before Repair and Adjustment 8 Wiring Connection Diagram 1.4.
SB-WA101E / SB-WA101EB 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
SB-WA101E / SB-WA101EB 1.3. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C701 & C702 through a 10Ω, 1W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
SB-WA101E / SB-WA101EB 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
SB-WA101E / SB-WA101EB 3 Warning 3.1. Service caution based on legal restrictions 3.1.1. General description about Lead Free Solder (PbF) The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.
SB-WA101E / SB-WA101EB 4 Accessory AC power cord..1 pc (For E only) AC power cord..1 pc (For EB only) 5 Connection of the Speaker Cables · Be sure to connect speaker cables before connecting the AC power supply cord.
SB-WA101E / SB-WA101EB 6 Assembling and Disassembling 6.1. Caution “ATTENTION SERVICER” Some chassis components may be have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
SB-WA101E / SB-WA101EB 6.3. Disassembly of Stand ornament Step 3: Remove 2 screws. (see making on rear cabinet) Step 1: Remove 5 screws. Step 2: Remove stand ornament. 6.4. Disassembly of Power amplifier unit Follow (step 1) to (step 2) in item 6.3.
SB-WA101E / SB-WA101EB 6.5. Disassembly of Woofer 6.6. Disassembly of Power P.C.B. speaker Follow (step 1) to (step 2) in item 6.3. Follow (step 1) to (step 2) in item 6.3. Follow (step 1) to (step 5) in item 6.4.
SB-WA101E / SB-WA101EB Step 4: Flip over the power P.C.B. and proceed with the Step 6: Flip over the power P.C.B.. checking. Step 7: Desolder the Power IC terminal and replace the component. · Replacement of Power IC 6.7. Disassembly of Transformer P.C.B.
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SB-WA101E / SB-WA101EB Step 5: Connect the level control P.C.B. with power amp unit. Step 1: Pull out the power switch, M9 nuts and volume knobs. Step 2: Pull up the front ornament assembly as arrow shown. Step 3: Remove 1 screw.
SB-WA101E / SB-WA101EB 10 Notes of Schematic Diagram (All schematic diagrams may be modified at any time with the development of the new technology) Note: S501 : Phase Switch S751 : Power Switch VR501 : Volume Jog VR502 : Encoder ·...
SB-WA101E / SB-WA101EB 11 Schematic Diagram 11.1. Power Circuit, Level Control Circuit, Transformer Circuit and LED Circuit SCHEMATIC DIAGRAM - 1 POWER CIRCUIT LEVEL CONTROL CIRCUIT : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE R523 CN501...
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C751 50V4200 H503/ W2(BRW) 0.001 W503 D708~711 B0EAMM000038 RLY701 K6B1AEA00003 TRANSFORMER L701 Z701 JK701 250V 1.6A ELF15N035AN ERZV10V511CS CIRCUIT AC IN FC702 FC701 230~240V 50Hz ...EB 230V 50Hz ... E SB-WA101E/EB POWER / LEVEL CONTROL / LED / TRANSFORMER CIRCUIT...
SB-WA101E / SB-WA101EB 15 Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used.
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SB-WA101E / SB-WA101EB Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D504 B0AACK000004 DIODE D505 B0BA7R900004 DIODE FUSE HOLDERS D507 B0AACK000004 DIODE D508 B0AACK000004 DIODE FC701 EYF52BCY FUSE CLIP D509 B0AACK000004 DIODE...
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SB-WA101E / SB-WA101EB Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R531 D0AE102JA048 1K 1/4W C512 ECA1CAM331XB 330 16V R532 D0AE334JA048 330K 1/4W C513 ECA1CAK100XB 10 16V R533 D0AE102JA048 1K 1/4W C514...