Related Manuals for Audio Pro A4-14
Summary of Contents for Audio Pro A4-14
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Page 2: Technical Description
ON/OFF circuits are powered as long as the speaker frequency signals in left & right channels are added A4-14 is plugged in to a live outlet. The remaining via filters C301, R301 & R304, C303, R305. circuits are powered only in "ON" state when relay K101 is closed. - Page 3 V705 & V709 filter the supply voltage for the input stage, eliminating hum & other kinds of noise. (If A4-14 "pops" when switched on, one of these transistors is probably shorted). No-signal DC-levels of voltages & currents are shown in the circuit diagram enclosed.
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Page 4: Fault Finding
4. SPARE PARTS disconnect the woofers & replace midrange driver & tweeter by 5-10Ω resistors. Test again Spare parts can be obtained from Audio Pro per Section 1.4 (signal levels in points Sweden, or from Distributors & Service Centres. Ⓔ Ⓕ Ⓖ...