Emerson-Radio-and-Phonograph-Corp-120828 电路原理图.pdf

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1、VOLUME R-26, MOST-OFTEN-NEEDED 1966 RADIO SERVICING INFORMATION Emerson Radio IMJtk “I* ! *K 3i P-f iji ft tf? MODELS: 31T09, 31T10, 3 I T 11 31L09, 31L10, 31L11 Chassis 120791, 120792, 120793, 120794. Similar Chassis 120826, 120828, are also used in some of these models. V. SERVICING PRECAUTIONS 1)

2、 Do not operate the chassis without a loudspeaker or suitable dummy load connected to the secondary of the audio output transformer, since this may result in damage to the audio output transistors. 2) Note that B (chassis ground) is connected to one side of the power line through R-ll. For this reas

3、on, an isolation transformer must be used whenever servic ing procedures require that a signal be conductively (by direct connection) injected into the receiver, otherwise damage to the chassis may result. 2 % -II- tO* -Ih - 2 - * H* r sf 1 r l W / K l 5 i- * k vV k. / cc cc, J * P J AW * * /%.*# T 2 o -r k I * is-k HI-* Si Vvv ETCHED CIRCUIT BOARD (BOTTOM 收音机爱 好者资料库 RadioFans.CN