United-Motors-Service-Delco-988822 电路原理图.pdf

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1、VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION PONTIAC DELUXE MODEL 988822 (Continued on page 45 adjacent at right) ALIGNMENT PROCEDURE Series Capacitor or Dummy Antenna Connect Signal Generator to Signal Generator Frequency 0.1 Mfd. 12AD6 Grid (Pin #7) 262 KC 0.000068 Mfd. Antenna

2、Connector 1615 KC 0.000068 Mfd. Antenna Connector 600 KC 0.000068 Mfd. Antenna Connector 1615 KC 0.000068 Mfd. Antenna Connector 1100 KC Tune Receiver to High Frequency Stop High Frequency Stop Signal Generator Signal High Frequency Stop Signal Generator Signal Adjust in Sequence For Max. Output A.

3、B. C, D *E, F, G J, K F. G L* *Before making this adjustment check mechanical 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

4、 should be made with a non-metallic screw driver. *L is the pointer adjustment which is on the connecting 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 1100 KC mark. This setting is to giv

5、e 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.) I2BL6 R.F.A

6、MP. I2AD6 OSC.-MOD. I2AF6 I.F.AMP. I2F8 DEI- laAUD. Schematic notes on page 45. I2K5 I AUD.-AMP. L022 2N278 29i_ OUT OO0|22O , JBfLioa 58 OOolizOV RESISTANCE VALUES ON COILS t 20 V. . VALUES UNDER ONE OHM ARE NOT SHOWN. - DIAL LIGHT ANT RELAY PONTIAC 988822PRINTED CIRCUIT SHOWN IN HEAVY LINES. 44 收音机爱 好者资料库 RadioFans.CN VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION DELCO PONTIAC Model 988822, Continued from page 44 45 PARTS LAYOUT-TUBE VIEW U PARTS LAYOUTCHASSIS VIEW 收音机爱 好者资料库 RadioFans.CN