United-Motors-Service-Delco-988623 电路原理图.pdf

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1、I2V6GT OUTPUT 161 收音机爱 好者资料库 RadioFans.CN VOLUME R-17, MOST-OFTEN-NEEDED 1957 RADIO SERVICING INFORMATION UNITED MOTORS PONTIAC MODEL 988623 (Continued) cd PRINTED CIRCUIT CHASSIS SEE SPECIAL DRAWINGS PRINTED CIRCUIT SEE SPECIAL DRAWINGS PARTS LAYOUT TUBE VIEW % Va H 5 _ m L tS 871“ U 2 2 Tune Recei

2、ver to High Frequency Stop High Frequency Stop Signal Generator Signal High Frequency Stop Adjust in Sequence For Max. Output A, B, C, D *E, F, G J. K F, G 5 0.000082 Mfd. Antenna Connector 900 KC Signal Generator Signal Illus. # 79* Before making this adjustment check mechanical setting of oscillat

3、or core “H.” The rear of the core should be 111 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 an insulated screw driver. Illus. # 79 is the pointer adjustment screw whi

4、ch is on the connecting link, between the pointer assembly and core guide bar It should be adjusted so that when looking directly at the dial the pointer is on the 900 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.) 162 收音机爱 好者资料库 RadioFans.CN