Service Manuals, User Guides, Schematic Diagrams or docs for : Philips Symptom Cure 2001-02 SymptomCure references FW5xx & FW7xx Hum

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TYPENUMBERS:                      FW545C, FW540C, FW548C, FW548V, FW555C, FW585C, FW590C, FW595C,
                                  FW748P, FW768P, FW798W

SYMPTOM:                          IRIS Code:                       114X

                                  Digital hum (whistling tone) audible from the Display in quite environment.

CAUSE:                            The source of the noise comes from the filtering SMD capacitors 2483 - 2486 for
                                  the FTD Display supply -F1 & -F2.

CURE:                             The problem is resolved by adding 2 elcos 4,7

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