RCA-Victor-Co-Inc-2B403 电路原理图.pdf

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1、MANUAL OF 19S2 MOST-OFTEN-NEEDED RADIO DIAGRAMS W Y n 4 A 2B400 2B401 2 B 402 DPAX/TrTOP 2B400 Senes IV-AVyXV _ D/- IIIA 2B403 2B404 2B40i ChdSSis No* RC-lll4 Crreen Tan Red VI IRS CONVERTER 4.7 MEG V3 1U5 DET.-A.R-A.V.C. V4 3V4 OUTPUT 4.7 MCd |3.3 A-y IsTleeJ -FERRITE ROD T S6 ?3.3 2. MEG. MEG. VOL

2、UME? I-control; T.0 47 2 SI I 0 ON VOL. 0* V“comtr.A3 .10 MEG. ”8 - A BATTERY - b;.tt. ALL RESISTANCE VALUES IN OHMS. K = 1000. ALL CAPACITANCE VALUES LESS THAN 1.0 IN MF. AND ABOVE 1.0 IN mME UNLESS OTHERWISE INDICATED. VOLUME CONT. i SWITCH SCREWS A -C1-I TRIMMER OSC. 1400 KC OSC. COIL 600 K C ANT

3、. ROD FLUSH WITH GROMMET FERRITE ROD ANTENNA BATTERY SAVER SWITCH SCREWS A Replacement of Component Parts I. To Remove Back Cover a. Depress top of case midway between the handle sup ports. until the top end of the back separates from the main case. b. Pull the back cover back and up. thereby unhook

4、ing the retaining lugs in the bottom of the main case. II. To Replace Batteries a. Remove back cover. b. Remove both “A and B batteries. The B” battery snap fasteners can best be removed by inserting a screwdriver under the snap fastener strip and prying upward. c. The A batteries can easily be remo

5、ved by pulling up on the spring wire clips. Note: The A and B” batteries have approximately equal life and therefore it is adviaoble to re place oil batteries at one time. 3V4 OUTPUT BATTERY CONNECTOR 455 KC 2ND. I.F. TRANS.- 1U4 I.F. AMR +A BATTERY CONNECTORS ANT. ROD FLUSH WITH GROMMET TUNING COND

6、ENSER - A BATTERY CLIPS f3V4YlU4 ApyiPurA t. F. j Tube and Trimmer Locations BATTERY SAVER SWITCH III. To Remove Chassis a. Remove dial knob by grasping with finger tips at two sides and pulling. b. Remove back cover. c. Remove batteries. d. Remove A+ contacts by squeezing against case and sliding o

7、ut of slots in case. e. Remove the four screws A. f. Grasp the assembly by the speoker ond pull the bot tom end down and outword to clear the volume con trol knob. IV. To Replace Chassis a. Observe the position of the battery save button exten sion in relation to the battery-save switch. This ex tension must engage with the center of the battery save switch. b. Replace in reverse order to that given for chassis removal. - 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN