RCA-Victor-Co-Inc-QU-55 电路原理图.pdf

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1、PAGE 5i1-C MODELS QU51C, QU51M and QU55 Chassis No. RC -568 RC -568A Seven -Tube and Magic Eye, Five -Band, Radio -Phonographs 4-44* QU51D1 Electrical and Mechanical Specifications FREQUENCY RANGES Standard Broadcast (A Band) 540-1,720 kc (556-174 m) Medium Wave (B Band) 3.0-9.5 me (100-31.6 m) 31 M

2、eter Spread Band 9.5-11.7 me (31.6-25.6 m) 25 Meter Spread Band 11.7-15.1 me (25.6-19.9 m) 19-13 Meter Spread Band 15.1-22.5 me (19.9-13.3 tn) INTERMEDIATE FREQUENCY 455 k TUBE COMPLEMENT (1) RCA-6SK7 (2) RCA-6SA7 1st (3) RCA-6SK7 I -F Amplifier (4) RCA -6U5 Tuning Indicator (5) RCA-6SQ7 2nd Det. A

3、-F Amplifier AVC (6) RCA-6AD7G Phase Inverter and Power Output (7) RCA-6F6G Power Output (8) RCA-5U4G(in QU51C and M) Rectifier (8) RCA -5T4 (in QU55). Rectifier PILOT LAMPS 2-Type 44, 6.3 volts, 0.25 amps. POWER SUPPLY RATINGS 105-125 volts, 50-60 cycles 115 watts* 105.125 volts, 25.60 cycles . 115

4、 watts* 100-130, 140-160, 200-250 volts, 50-60 cycles 115 watts* * Including phono motor. POWER OUTPUT QU51C Q51 QU55 Undistorted 9.5 watts 12 watts Maximum 11 watts 15 watts 3 TERM ar0 O - 57 RAD -PHONO 5w (SHOWN IN RAD. POSITION ) R (O 4IGH TONE CONTROL 500 M 223 82 M C54 .025I R11 LOW Tee.* CONTR

5、OL 1 MEG. LOUDSYEAKEIS RL7ON1 RL7ON3 RL71A4 Type 12 -in EM 12 -in. EM 12 -in. PM Used in QU51 Q1155 QU51 7z N yg -rl11 mTS86 f iaQ444Q 72255252 1919044111190 mOnOdaNj -N11dN19r L. O d N NA/Ne NW rc No l* 9 I, N V- .elk, 9Qg4Q,e O JA C,. G 48 n /40- -d 000 11 20 f _G N m N J 7,0 11 (1,N UN- a N O u r

6、u ,o- fki-f 11 e. m e 09 4Q / II. m, 00 PAGE 513-C U-5iC, -M, QU55 n N _ O w N g b J ne J11 4pr O d I m 4 d7 UN t watt Resistor -270,000 ohms, * watt Resistor -330,000 ohms, watt Resistor -470,000 ohms, 3 watt Resistor -1 meg., 1/10 watt Resistor -1 meg., watt Resistor -2.2 meg., 3 watt Resistor -10

7、 meg., * watt Screw-No. 8-32 square head set screw for drum Socket -7 contact socket located on rear apron of chassis Socket-Dial lamp socket Socket-Tube socket Socket-Tuning tube socket PAGE 515-C Replacement Parts (Continued) QU-5IC, -M, QU55 STOCK No. DESCRIPTION STOCK No. DESCRIPTION 31418 31261

8、 37993 35636 36815 34183 2917 37053 37994 37993 31373 38307 38308 13867 12079 11469 36145 31539 36146 37997 13867 38331 11469 36145 5119 31539 36146 37997 13867 36145 5118 38146 36461 12537 11315 4870 30716 36109 35629 36328 33680 38155 35387 36074 37839 36386 35392 36156 35391 38225 38303 30698 Spr

9、ing-Drive cord spring Spring-Retaining spring for oscillator coils core and stud assemblies Switch-Range switch Transformer-First I.F. transformer Transformer-Second I.F. transformer Transformer-Power transformer -110-125-150- 210-240 volts, 50-60 cycle Washer-C washer for tuning shaft CHASSIS ASSEM

10、BLIES QU55, RC568A (Same as QU51, RC568 except the following) DELETE Board-Antenna-Ground board Bracket-Pulley bracket assembly (long bracket) Switch-Range switch ADD Pulley-Drive cord pulley (-n. dia.) Pulley-Pulley (3 -in. dia.) and bracket assembly Switch-Range switch SPEAKER ASSEMBLIES (RL7ON1)

11、Cap-Dust cap Coil-Field coil, 1060 ohms Coil-Neutralizing coil Cone-Cone complete with Plug -5 prong male plug Suspension-Metal cone suspension Transformer-Output transformer SPEAKER ASSEMBLIES (RL7ON3) Cap-Dust cap Coil-Field coil, 1630 ohms Coil-Neutralizing coil Cone-Cone complete with voice coil

12、. Plug -3 -contact female plug for speaker cable. Plug -5 prong male plug for speaker Suspension-Metal cone suspension. . Transformer-Output transformer SPEAKER ASSEMBLIES (RL71A4) Cap-Dust cap Cone-Cone complete with voice coil Plug -3 prong male plug Suspension-Metal cone suspension MISCELLANEOUS

13、ASSEMBLIES QU51 Button-Plug button Capacitor -580 mmfd., for QU51C only Capacitor-.015 mfd., for QU51C only Capacitor-.025 mfd. Clip-Tuning tube clip Control-Bass tone control Control-Treble tone control Cover-Compartment leads cover Cup-Used needle cup Decal-Bass tone control decal. . Decal-Power-v

14、olume decal Decal-Radio-Phono switch decal Decal-Range switch decal Decal-Trade mark decal (His Masters Voice) Decal-Trade mark decal (RCA Victrola) Decal-Treble tone control decal Decal-Tuning decal Dial-Glass dial scale Hinge-Cabinet door hinge Hinge-Cabinet lid hinge 36593 13103 35814 35775 11891

15、 33774 31470 37998 36395 31048 38302 36246 30128 30492 14023 37800 33083 30900 35831 38301 14609 38303 30698 37998 38302 33083 35831 38704 38310 38382 38381 38309 36413 30650 35575 36414 36693 Indicator-Station selector indicator Jewel-Pilot lamp jewel Knob-Range switch or radio -phono switch knob K

16、nob-Tuning, volume control, treble or bass control knob Lamp-Dial lamp Mounting-Complete set of mounting hardware to mount one speaker Mounting-Motorboard spring mounting Plate-Dial plate complete-less dial, pointer, and tube clip. Plug -7 -prong male plug for radio -phono cable Plug-Phono ihput cab

17、le plug for QU51M Pull-Door pull and screw Receptacle-Packaged needle holder Resistor -12,000 ohms, watt Resistor -22,000 ohms, watt Resistor -82,000 ohms, watt Shade-Lamp shade Spring-Cabinet lid support spring Spring-Retaining spring for knobs Support-Cabinet lid support Switch-radio-phono switch

18、Transformer-Input transformer for QU51M. MISCELLANEOUS ASSEMBLIES QU55 (Same as QU51 except the following) DELETE Hinge-Cabinet door hinge Hinge-Cabinet lid hinge Plate-Dial plate complete-less pointer and tube clip Pull-Door pull and screw Spring-Cabinet lid support spring. Support-Cabinet lid supp

19、ort ADD Back-Cabinet back Board-Antenna-Ground Hinge-Cabinet lid hinge L.H Hinge-Cabinet lid hinge R.H. Plate-Dial plate complete-less pointer and tube clip Pull-Door pull Resistor -56,000 ohms, watt Spring-Cabinet lid support spring Support-Cabinet lid support L.H. Support-Cabinet lid support R.H.

20、w/k -11ML IORRFVOWMe COhTNOI 1 TaaIN6 CONTROL Gwa an u IMAGE COIITIfOI Q U55 FOR RECORD CHANGER REPLACEMENT PARTS SEE SERVICE NOTES ON RP -145E for MODEL QU-51C RP -152R for MODELS QU-51M and QU-55 lhighasst TREBLE TONE 4 CONTROL speech full (lasst louu) BASS TONE - CONTROL radio phono RADIO -PHONO _ tly CONTROL Q U55 MAGIC EYE Shalt i+NO/N1 CdRROL QU51C and QU51M QU51 e_ TUNING CONTROL 31 B 25 RANGE CONTROL POWER -VOLUME CONTROL seih off, loud