United-Motors-Service-Delco-987693 电路原理图.pdf

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1、159 收音机爱 好者资料库 RadioFans.CN VOLUME R-17, MOST-OFTEN-NEEDED 1957 RADIO SERVICING INFORMATION 0 Op UNITED MOTORS Chevrolet 987693 Gp Gp (Continued from page 159) n e e la,m 7 finn jDUO ESCUTCHEON CROSS SECTION _ 71 113 105 92 l-;7 97 Kl I / / ml M iXX TUNER 7IC 96 nr* 7 109 114 104 102 95 94 TUNER PAR

2、TS LAYOUTTUBE VIEW ALIGNMENT PROCEDURE Steps Series Capacitor or Dummy Antenna Connect Signal Generator to Signal Generator Frequency Tune Receiver to Adjust in Sequence For Max. Output X 0.1 Mfd. I2BE6 Grid (Pin #7) 262 KC High Frequency Stop A, B, C. D 2 0.000068 Mfd. Antenna Connector 1615 KC Hig

3、h Frequency Stop *E, F, G 3 0 0000 8 Mfd. Antenna Connector 600 KC Signal Generator Signal J. K 4 0 000068 Mfd. Antenna Connector I6l5 KC High Frequency Stop F, G 5 0 000068 Mfd. Antenna Connector 900 KC Signal Generator Signal L* Before making this adjustment check mechanical setting of oscillator

4、core H.” The rear of the core should be % 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-metalic screw driver. *L is the pointer adjustment screw which is on the co

5、nnecting link, between the pointer assembly and core guide bar (See tuner Dwg.). It should be adjusted so that when looking directly at the dial the pointer is on the 1000 KC mark. This setting is to give the correct relationship between the pointer and the 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.) 160 收音机爱 好者资料库 RadioFans.CN