CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
IMPORTANT SAFETY
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LOEWE. ALL COMPONENTS SHOULD BE
REPLACED ONLY WITH TYPES IDENTICAL TO
THOSE IN THE ORIGINAL CIRCUIT. SPECIAL COMPO-
NENTS ARE SHADED ON THE SCHEMATIC FOR
FD(+)FD(-) No Power
D121 is Defective
EASY IDENTIFICATION. THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED.
No Power |
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BD101, R101 is Defective |
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-28VA No Power |
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D122 is Defective |
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5V No Power |
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D125 is Defective |
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S/W Error |
No Power |
13.5VA No Power |
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IC101 is Defective |
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D102 is Defective |
D124 is Defective |
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3.8VA No Power |
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D127 is Defective |
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No Power |
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F101 is Defective |
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5.3VA No Power |
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33VA No Power |
D128 is Defective |
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D126 is Defective |
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12V No Power |
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Switching Error |
IC155 is Defective |
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IC102, IC103 are Defective |
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5V No Power |
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IC156 is Defective |
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NOTE :
1.Shaded(
) parts are critical for safety. Replace only with specified part number.
2.Voltages are DC-measured with a digital voltmeter during Play mode.
3-39 |
3-40 |
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