Sears-Roebuck-and-Co-6056A 电路原理图.pdf

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1、VOLUME R-16, MOST-OFTEN-NEEDED 1956 RADIO SERVICING INFORMATION Sears, Roebuck & Co. Chassis 528.40500, Catalog Nos. 6056A and 6057A L2 0SC1LLATO* COIL VALUES or CAPACiTOPS IN WfO UNLESS OTHERWISE NOTCO t. ALL RESISTORS 1/2 WATT UNLESS OTHERWISE NOTED S. V0LTA4ES MEASURED MOM POINT iNOICATEO TO 6A0U

2、MD WITH 20,000OHM/VOLT M(TEN. RADIO * PHONO SWITCH IN NA00 POSITION ON IITV AC .MOLINE * these pants in cenamic unit, MEASUNEO With vtvm. ALIGNMENT PROCEDURE SWITCH ON VOL CONTNOL POSITION OP TUNE* GENERATOR FREQUENCY DUMMY ANTENNA GENERATOR CONNECTION TRIMMER ADJUSTMENT TRIMMER FUNCTION open 455 KC

3、 .1 mfd. pin 7 12BE6 T1 and T2 top and bottom I.F. open 1630 KC .1 mfd. pin 7 12PE6 C3B Oscillator 1400 KC 1400 KC HAZELTINE TEST LOOP C2* Antenna Located an Antenna. ri Alignment Information for Chassis 528.40400 (see preceding page for circuit) POSITION OF TUNER GENERATOR FREQUENCY DUMMY ANTENNA G

4、ENERATOR CONNECTION TRIMMER FUNCTION TRIMMER ADJUSTMENT Open 455 KC 0.1 mfd. 12BE6 pin 7 T2 (top & bottom) 2nd I.F. Open 455 KC 0.1 mfd. pin 7 12BE6 T1 (top & bottom) 1st I.F. Open 1610 KC 0.1 mfd. pin 7 12BE6 C1C (trimmer) Oscillator 1400 KC 1400 KC Hazeltine test laap C1B (trimmer) R.F. 1400 KC 1400 KC Hazeltine test laap CIA (trimmer) Antenna 136 收音机爱 好者资料库 RadioFans.CN