Majestic-Radio-and-Telev-Corp-5AK780 电路原理图.pdf

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4、 o a cvj P O 3 a a ii o i11i rH a a o a a MODELS 5AK73I-5AK780 CHASSIS 5B05A See nage 82 for alignment Model 5AK711, Chassis 5B01A is similar, but less phono. 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS Models 5AK731, 5AK780 Chassis 5B05A PHONO PICKUP JACK ooO 35W4 12 AT6

5、 . A O w T1 0 a s* J _TUBE LAYOUT_ ALIGNMENT Before aliening, set the dial pointer as follows: Close the tuning gang condenser (plates fully closed). Set the.dial pointer so that it is in line with the last mark at the low frequency end of the dial scale. While aligning this receiver, turn the volum

6、e control full on, and keep the signal generator output as low as possible to prevent AVC action and false readings. OPERA TION INPUT SIGNAL FREQUENCY SET DIAL TO ADJ . TRIMMERS PURPOSE 455KC Modulated 600KC C5,C6,C9 and CIO Align I.F. channel for maximum output 1500KC Modulated 1500KC C3 Set oscillator to dial scale 1500KC Modulated 1500KC Cl Align ant. for maximum output O DIAL STRING 59) 3 TURNS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN