General-Electric-Co-607 电路原理图.pdf

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1、MANUAL OF 19S2 MOST-OFTEN-NEEDED RADIO DIAGRAMS GENERALS ELECTRIC FOR MODELS 607 and 608 ALIGNMENT CHART Always have volume control full on and reduce signal input so A-V-C will not affect output. Sig. Gen. Connected to B and 1T4 Grid Pin 6 thru .05 Cap IRS Grid Pin 6 thru 05 Cap IRS Grid Pin 6 thru

2、 .05 Cap Inductively Coupled to Loop Inductively Coupled to Loop Sig. Gen. Frequency Adjust For Max. Output Cores of I-F Trans. T3 Cores of I-F Trans. T2 Re-adjust T2 and T3 Osc. trimmer C2B Tune for maximum R-F trimmer CIB Make the final ANT. trimmer adjustment with the chassis installed in the cab

3、inet and an “A” battery in position and connected, since the battery af fects the tuning of the antenna. CHASSIS REMOVAL: A. Remove two control knobs B. Remove two hex head screws from cabinet bosses just under each side of dial sale C. Remove two speed nuts (turn 90) from cabinet bosses at each sid

4、e of speaker BOTTOM SHIELD REMOVAL: A. Remove chassis B. Unsolder one loop lead from stator of R-F section of gang condenser C. Remove six trimount studs: 3 across back of chassis 3 across front of chassis (2 under speaker grille) D. Slide bottom down one inch and pull out CAUTION: One side of the p

5、ower line is connected to B-. Avoid any direct connections to ground. Use an isolating trans former when making service adjustments with the chassis re moved from the cabinet. I-F GAIN 455KC V I IRS OSC.-CONVERTER R1-1Q0K AVERAGE CURRENT THRU Ri -.0002AMP 2HD l-F OEt a AUDIO *“Pl-24vl32) 3 ! .1 - *- V4 3V4 POWER AMPL. 收音机爱 好者资料库 RadioFans.CN