1.1.1 LEAKAGE CURRENT COLD CHECK
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1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each
exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts,
etc. When the exposed metallic part has a return path to the chassis,the reading should be
between 1M
Ω
and 5.2
Ω
.
When the exposed metal does not have a return path to the chassis, the reading must be
.
Fig. 1
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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 ...
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