Emerson-Radio-and-Phonograph-Corp-P-1904 电路原理图.pdf

《Emerson-Radio-and-Phonograph-Corp-P-1904 电路原理图.pdf》由会员分享，可在线阅读，更多相关《Emerson-Radio-and-Phonograph-Corp-P-1904 电路原理图.pdf（2页珍藏版）》请在收音机爱好者资料库上搜索。

1、 J li iaamsBW I FIG. 2 - ETCHED PRINTED CIRCUIT, CHASSIS 120599B (Bottom View) CHANNEL CHANNEL v FIG. 5 - RECORD CHANGER 819180, UNDERSIDE VIEW CONDITIONS FOR VOLTAGE AND RESISTANCE MEASUREMENTS, STEREO AMPLIFIER CHASSIS 120599-B. VOLTAGE MEASUREMENTS were taken under the following conditions, using

2、 an RCA “Voltohmyst” or equivalent VTVM: 1) Line voltage maintained at 115 volts AC. 2) Volume control set for minimum volume. 3) All voltage measurements made between points indicated and B-neutral (negative side of electrolytic capacitor C-16) unless otherwise noted. RESISTANCE MEASUREMENTS were m

3、ade under the following conditions, using an RCA Voltohmyst* or equivalent VTVM: 1) ON-OFF switch (SW-1) in. OFF position and line cord dis connected from AC outlet. 2) AC connector for record changer (P-4) disengaged from motor socket (S-4). 3) All resistance measurements made between points indica

4、ted and B-neutral (negative side of electrolytic capacitor C-16) unless otherwise noted. RESISTANCE READINGS, STEREO AMPLIFIER CHASSIS 120599B TUBE TYPE PIN 1 12AX7 *570K 50EH5 33 50EH5 33 30 to .5 M PIN 5 PIN 6 PIN 7 18 *570K 6.8 M 30 o .5 M *450 *370 30 to .5 M *450 *370 34 收音机爱 好者资料库 RadioFans.CN 35 connect 收音机爱 好者资料库 RadioFans.CN