RCA-Victor-Co-Inc-4RD40 电路原理图.pdf

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1、VOL ME R-24, MOST-OFTEN-NEEDED 1964 RADIO SERVICING INFORMATION RCA VICTOR 4RA1 Series, 4RA3 Series, 4RA4 Series, 4RD4 Series, 4RD5 Series, Models Models Models Models Models 4RA10, 4RA30, 4RA41, 4RD40, 4RD51, 4RA14, 4RA31, 4RA42, 4RD44, 4RD52, 4RA15, 4RA34, 4RA45, 4RD41, 4RD55, Chassis RC-1213A, Ch

2、assis RC-1213B, Chassis RC-1213F, Chassis RC-1213H, Chassis RC-1213E. (Service data below and continued on the next page at right) CHASSIS ACCESSIBILITY 4RA1 and 4RD4 Series 1. DO NOT ATTEMPT TO REMOVE THE KNOBS. The tuning and volume control knobs are held captive to the cabinet by retainers on the

3、ir shafts. 2. Remove the back cover by lifting the protrusions on the bottom of the back cover out of the slots in the base of the cabinet. 3. Unsolder speaker leads if necessary. Avoid putting a strain on the speaker leads. 4. Remove two chassis retainers (screw? or dips:, one at the volume control

4、 and one on the left end mount ing. $. Grasp tuning capacitor and volume control, and pull chassis out of knobs and mounting slots. 4RA3 Series 1. IT IS NOT NECESSARY TO REMOVE THE KNOBS The chassis, antenna, and loudspeaker are all mounted on the front panel section ana are readily accessible when

5、the back is removed. 2. Remove two (2) screws, one at each of the upper corners of the back. 3. Pull front panel section out of hood-back section To reassemble 1. Align the power interlock connector. 2. Press the front and back sections of the cabinet to gether. 3. Check that the three bosses on the

6、 bottom of the front section are seated in their respective slots in the bottom of the back section. 4. Replace screws at upper back corners. 4RA4 and 4RD5 Series 1. IT IS NOT NECESSARY TO REMOVE THE KNOBS. The chassis, antenna, and loudspeaker are all mounted on the front panel section and are read

7、ily accessible when the back is removed. 2. Remov four (4) screws, one t each of the back corners. 3. Pul! front panel section lUt of hood-back section. To reassemble 1. Align the power interlock connector. 2. Press the front and back sections together. 3. Replace four screws in back corners. 12BE6

8、12BA6 12AV6 50C5 132 收音机爱 好者资料库 RadioFans.CN VOLUME R-24, MOST-OFTEN-NEEDED 1964 RADIO SERVICING INFORMATION RCA Victor Chassis RC-1213A, -B, -E, -F, -H, Continued from preceding page. I2AV6 DET 1ST Ay WO 50C5 AUWO OUTPUT II bflgHBBBBBffl RESISTANCE VALUES AWE IN OHMS - iww ALL CAPACITANCE VALUES LE

9、SS THAN O ARE INjif VALUES 10 AND ABOVE ARE lNi.f EXCEPT AS NOTED VOLTAGES MEASURED TO COMMON NEGATIVE*! WITH VOLTOHMTST AND SHOULD MOLD WITHIN t 20X *TH RATEO LINE VOLTAOC APPLAri-S OUTLET,fg)1 iioomtt VBi IZOWXTS SO CYCLES POWER SUPPLY Scht matte DiagramRC-1213B E, F, H TO CLOCK 6 SWITCH RC 1219 E

10、) TO APP. OUTLET ( RC-1213 El _tB _rW Chassis LayoutRC-1213E,F View irom Component Side to.outlet*_ I l-imtohik-hish J IRC-12I5EI TOCLDC* Vtu BSWITCH-U TO CLOCK (RC-1213 EI (RC-1213 E I Dial Cord Stringing WITH TUNING CAPACITOR AT FULLY COUNTER CLOCK WISE POSITION SET POINTER AT NOTCH Clock Wiring 133 收音机爱 好者资料库 RadioFans.CN