Onkyo - Acfea 电路图.pdf

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1、575 AM Noise ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

2、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? On Volume PCB NCVD-6566, add D202 with 1SS133. Add C209 with .01uf/50V ceramic disc capacitor. Remove C3686 and put it in place of C3685. In place of C3686 place a jumper. Re-solder any loose RCA plugs and ground

3、connectors. Title : TXDS575 (AM Noise) Date: 11/05/1999 Classification : Optional Symptom : AM Radio and Hum noise in subwoofers Reason In some cases, an AM radio transmitting near by the consumers house (4miles or less of radius est.) may cause audio of the modulated signal be heard in all function settings in center and rear channels. AM broadcast Frequency range 1360Khz 1490Khz. *When used along some high impedance input subwoofers whose power supply employ 3pin (grounded) version, there is a possibility of hum noise heard. Solution Page 1 RadioFans.CN 收音机爱 好者资料库