Sears-Roebuck-and-Co-13284101 电路原理图.pdf

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1、VOLUME R-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION Sears, Roebuck Chassis 132.84101, Models 5045, 5046 (Diagram and top view on page 141) fa IZDT6 if 55 X f-_ 11 8.2 r 5.6 1 IM) /- 5.0 / HI Ji2dtb = 11 AI2 I FaHI k J F ,1 FT FT I 1000 I 1000 F L test point (2) J AM ALIGNMENT PROCEDURE X

2、 I X60 TUNER SCHEMATIC Position of Generator Dummy Variable Frequency Antenna Open 455 Kc ,05 mfd. Open 1640 Kc 1400 Kc 1400 Kc *600 Kc 600 Kc Generator Generator Adjust Trimmer Dummy Connection Connection in Order Shown Antenna (high) Ground Lead for Max. Output ,05 mfd. Pin 7, 12BE6 B-thrdugh .1 m

3、fd Al, 2, 3, 4 Test Loop Test Loop A5 Test Loop Test Loop A6 Test Loop Test Loop Check Point Trimmer Function I.F. Oscillator Antenna Three (3) turns of wire 6“ in diameter placed about one foot from the receiver antenna. The alignment procedure should be repeated in the original order for greatest

4、accuracy. Always keep the out put from the signal generator at its lowest possible value to make the A VC action of the receiver ineffective. * Check point only - No adjustment. 96729-L START HERE NOTE: SHOWN WITH VARIABLE IN CLOSED POSITION. , 5 turns a STRINGING DIAGRAM -wi CIRCUIT BOARD DIAGRAM (Bottom View) 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN