RCA-Victor-Co-Inc-9C8 电路原理图.pdf

TO PILOT LAMP REMOVAL OF CHASSIS FROM CRADLE Remove volume and tuning control lmobs Disconnect three speaker leads. Remove bottom screw. Remove one screw at outside of cradle (close to speaker) Swing right end of chassis (as viewed from rear) to the rear of the cradle Disengage chassis from cradle by moving endways, 8 41 iI* 1958 RADIO SERVICING INFORMATION rca Victor 9-C-7,9-C-8,9-X-10 Series Chassis No. RC-1166A, No. RC-1166B M E tMi ( n* ii i li Na S c o TUN NG CDNTROL SHAFT I ASSEMBLY SHOWN WITH TUNING CONDENSER PLATES FULLY MESHED. ALIGNMENT PROCEDURE 0) v 0 N. 0 T- rJ -Jit1 iSHd?, iui? *5 2ri0 B a Q) S! ST E” 0,0 ft S o : I Tune test-osc. to Turn radio dial to Adjust the following for max output 12BA6 I-F grid through .01 mfd capacitor Quiet- point 1,600 kc end of dial T2 (top) 2nd 1-F trans, 1 Stator of Cl-B through .01 mfd. T1 (top and bottom) 1st I-F trans. B 1.620 kc Gang fully open osc trimmer Cl-A B Short wire placed near loop to radiate signal 1.400 kc 1 400 kc signal j ant. trimmer Cl-B I 600 kc 600 kc signal osc. coil T-4 (rock gang) 1 Repeat steps 3, t and 5 12BE6 V-4 socs power output !| - - hi ill l?UZ- J l MPG VOLUME CONTROL tftrtrf 35W4 RECT K-IOOO ALL RESISTANCE VALUES IN OHMS ALL CAPACITANCE VALUES LESS THAN 1.0 IN MF AND 1.0 AND ABOVE IN MWF EXCEPT THOSE INDICATED JV. Circuit diagram of 9-X-10; circuit of 9-C-7, 9-C-8 Series are identical except for the addition of clock timer switch. r 11SV AC DC POWER SUPPLY 17 srT- J/ONVOlA 155 收音机爱 好者资料库 RadioFans.CN