9 Schematic Diagram
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(All schematic diagrams may be modified at any time with the development of the new technology)
Note:
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The voltage value and waveforms are the reference voltage of this unit measured by DC
electronic voltmeter (high impedance) and oscilloscope on the basis of chassis. Accordingly,
there may arise some error in voltage values and waveformsdepending upon the internal
impedance of the tester or the measuring unit.
●
Importance safety notice :
Components identified by
; mark have special characteristics important for safety.
Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality
sound (capacitors), low-noise (resistors), etc. are used. Whenreplacing any of components, be
sure to use only manufacturer´s specified parts shown in the parts list.
Caution !
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
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Cover the parts boxes made of plastics with aluminium foil.
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Put a conductive mat on the work table.
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Ground the soldering iron.
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Do not touch the pins of IC, LSI or VLSI with fingers directly.
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Summary of Contents for SB-WA330E
Page 18: ...Step 9 Remove all the screws Step 10 Remove the Speaker ...
Page 19: ...Step 11 12 Remove all the screws ...
Page 21: ...Step 17 Place the Power PCB as shown for checking ...
Page 22: ...Checking for AC Inlet PCB TOP PREVIOUS NEXT ...
Page 24: ...6 2 1 Replacement of the Power IC TOP PREVIOUS NEXT Step 1 2 Remove all the screws ...
Page 25: ...Step 3 Desolder the Power IC terminal and replace the component TOP PREVIOUS NEXT ...
Page 26: ...7 Connection of the Speaker Wiring TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 27: ...8 Block Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 29: ...10 Printed Circuit Board TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 30: ...11 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 31: ...12 Illustration of IC s Transistors and Diodes TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 35: ...13 1 1 Cabinet Parts Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT ...
Page 47: ...13 4 Packaging TOP PREVIOUS TOP PREVIOUS ...
Page 48: ......
Page 49: ......