United-Motors-Service-Delco-987573 电路原理图.pdf

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1、I2BA6 I2BE6 I2BA6 I2AV6 I2V6GT R.F.AMP OSC-MOD I.EAMR DET-AUD OUTPUT VOLUME R-17, MOST-OFTEN-NEEDED 1957 RADIO SERVICING INFORMATION UNITED MOTORS Chevrolet Model 987573 (Continued on page 156, over) ) N I-a it | N3JHi -s T I a!* .m II . r i y / 1 21 riV UNITED MOTORS - Clievrolet Model 987573 | a (

2、cont.) | C f- ll E IRON CORE ALIGNMENT PARTS LAYOUT TUBE VIEW ALIGNMENT Steps Series Capacitor or Dummy Antenna Connect Signal Generator to Signal Generator Frequency Tune Receiver to Adjust in Sequence For Max. Outpui 1 0.1 Mfd 12BE6 Grid (Pin #7) 262 KC High Frequency Stop A. B. C. D 2 0.000068 Mf

3、d Antenna Connector 1615 KC High Frequency Stop *E, F, G 3 0.000068 Mfd. Antenna Connector 600 KC Signal Generator Signal J. K 4 0.000068 Mfd. Antenna Connector 1615 KC High Frequency Stop F. G 5 0.000068 Mfd. Antenna Connector 900 KC Signal Generator Signal * Before making this adjustment check mec

4、hanical setting of oscillator core H The rear of the core should be 1% from the mounting end of the coil form (This measurement is readily made by inserting a suitable plug in the mounting end of the coil form.) Core adjustment should be made with a non-metallic screw driver. *Tune in 1100 KC signal

5、 and adjust pointer on the dial cord so that the pointer is on the 1100 KC mark of the dial. This setting is to give the correct relationship between the pointer and dial when the radio is installed in a car. With the radio installed and the car antenna plugged in adjust the antenna trimmer G for maximum volume with the radio tuned to a weak station between 600 and 1000 KC (see sticker on case ) 156 收音机爱 好者资料库 RadioFans.CN