United-Motors-Service-Delco-989002 电路原理图.pdf

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1、VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION Speaker Wonder Bar Receiver OLDSMOBILE SUPER DELUXE MODEL 989002 (Alignment and other service material on page 51, adjacent at right.) J Tone Off-On Sens. Speaker Manual Control Volume Cont. Control e= mw -3 T1 11 -gia-6 83 44 SSKU O 8

2、aT8 raj*Lmf ifo)* Wfc-0 * v v v v v 8 ,- N V-/Q J O H s JfS UJ =i3glSofg I bills; JwP ooZ l D 3 3 ? to. op* J o | O 50 OLDSMOBILE MODEL 989002 PRIMPED CIRCLIT SHOWN IN HEAVY LINES 收音机爱 好者资料库 RadioFans.CN VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION OLDS.MOB1LE MODEL 989002 (Contin

3、ued from page 50) & NUMBERS ON PRINTED CIRCUIT BOARD CORRESPOND WITH NUMBERS IN CIRCLES ON SCHEMATIC DIAGRAM. 150 127 ,132 !43 TUNER PUSHBUTTON SET-UP 1. Pull button to till left mil out. 2. I line in desired station manually. 3. Push button all tile way in. PARTS LAYOUTTUBE VIEW YLIGNMENT PROCEDURE

4、: Generator Return Receiver Chassis Dummy Antenna In Series With Generator Volume Control Maximum Volume Sensitivity Control Position 1. (Position 1 is Maximum) Tone Control Treble (max. clockwise) Generator Output Not to Exceed 2 Volts at VTVM Connect vacuum tube voltmeter between A VC line (island

5、 4 on piinted cir cuit board) and ground during alignment. Step Dummy Antenna Connect To Signal Generator Frequency Tune Receiver To Adjust in Sequence i 0.1 mfd. I2BE6 Grid (Pin 7) 262 KG High Frequency Stop A, B. C (M ix ) 2 0.1 mfd. 12BE6 Grid (Pin 7) 262 KC High Frequency Stop D (Min.) 3 0.00006

6、8 mfd. Antenna Connector 1615 KC High Frequency Stop *4E, F, G (Max ) 1 0.000068 mfd. Antenna Connector 600 KC Signal Generator Signal J, K (Mix.) 5 0.000068 mfd. Antenna Connector 16X5 KC Signal Generator Signal F G (M ix.) 6 0.000068 mfd 1 Antenna Connector 1100 KC Signal Generator Signal .L Io tu

7、ne to high frequency, put a 0.012 feeler gauge (or bare #28 wire) in slot against the high frequency stop. (See tuner pictures). Turn manual control to allow the treadle bar arm to run against the feeler gauge. Before making this adjustment, check the setting of oscillator core nH.M The rear of the

8、core should be I*Vg,# from the mounting end of the coil form. I his measurement is readily made by inserting a suitable plug in the mounting end of the coil form. I he core adjustment is made from the mounting end of the coil form with a non-metalic screw driver. If this adjustment is necessary, fir

9、st dissolve the glyptal seal on the core stud and lx? sure to re-seal after making the adjustment. I is the pointer adjustment screw on the end of the core guide bur adjust so pointei reads IKK) KC Will, the radio installed and the antenna plugged in, adjust (lie antenna triiiimei C lot max.mi solium- with lh* ladio tuned to a weak station between BOO and 1000 KC (see slicker on cas. 收音机爱 好者资料库 RadioFans.CN