RCA-Victor-Co-Inc-11QU 电路原理图.pdf

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1、PAGE 302-C MODELS 1104, 110K, and 110U Chassis No. RC -335-C RC -335-C RC -335-E Eleven -Tube, Four -Band, Electric -Tuning, A -C, Radios and Victrola Model 1104 TABLE MODEL 8 -inch Speaker Model 110K CONSOLE 12 -inch Speaker Electrical Specifications Model 110U AUTOMATIC VICTROLA 12 -inch Speaker F

2、REQUENCY RANGES Long Wave (X Band) 150.400 kc (2,000.750 m) Short Wave 1 (B Band) Medium Wave (A Band) 5454,650 kc (550.182 m) Short Wave 2 (C Band) Intermediate Frequency RADIOTRON COMPLEMENT ( 1 ) RCA -6K7 (2) RCA -6L7 (3) RCA -6J7 (4) RCA -6K7 (5) RCA -6K7 2.3-7.0 mc (130-42.8 m) 7.0-22 mc (42.8-

3、13.6 m). 455 kc ( 6) RCA -6Q7 2nd-Det., A.V.C., and Audio R -F Amplifier ( 7 ) RCA -6F5 Inverter 1st -Detector ( 8 ) RCA -6F6 -G Power Output Oscillator ( 9 ) RCA -6F6 -G Power Output 1st I -F Amplifier (10) RCA -6U5 Tuning Tube 2nd I -F Amplifier (11) RCA -5T4 Full -Wave Rectifier Pilot Lamps (11Q4

4、 and 11QK) One Mazda 47, 6-8 volts, .15 amp.; Two Mazda 44, 6.3 volts, .75 amp. Pilot Lamps (11QU) One Mazda 47, 6-8 volts, .15 amp.; Three Mazda 44, 6.3 volts, .25 amp. POWER OUTPUT Undistorted 10 watts Maximum 12 watts LOUDSPEAKER (Electrodynamic) Model 11Q4 Diameter (inches) 8 Voice -Coil Impedan

5、ce at 400 cycles (ohms) 2.2 2.2 2.2 Model 11QK Model 11QU 12 12 POWER SUPPLY RATINGS Models 11Q4, 11QK Rating C 105.130/140.160/195.250 volts, 50-60 cycles 120 watts Model 11QU 145 watts (total) 120 watts (radio) PHONOGRAPH (Model 11QU) Type Automatic Record Capacity Eight 10 -inch or seven 12 -inch

6、 Turntable Speed Type Pickup Pickup Impedance at 1,000 cycles 78 r.p.m. (adjustable) Crystal 100,000 ohms REFER TO INDEX FOR DATA ON ELECTRIC TUNING AND AUTOMATIC RECORD CHANGER RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 303-C IIQu, IIQK,

7、 IIQU ADJUSTMENTS FOR ELECTRIC TUNING 1. Make a list of the desired eight stations, arranged in order from low to high frequencies. 2. Turn range selector to A band, turn power on, and allow a few minutes for warming up. 3. Press down the dial -tuning (right-hand) button. 4. Manually tune in the fir

8、st station on the list, using the Magic Eye for accurate tuning. 5. Hold down the dial -tuning button, and press down station button No. 1 (second from left). Both buttons Station -Setting Contacts and Selector Disc This illustration shows connections for a G8A Armchair Control Unit. This unit is no

9、t sup- plied with the receiver but may be added as an accessory. Color of Lead Station To Station -Setting Button Contact No. 1 Black No. 2 Brown No. 3 Blue No. 4 Green No. 5 Red No. 6 No. 7 No. 8 Red -black Brown -black Red -yellow STATION - SETTING CONTACTS cf /SEBRASS DISC LECTOR will stay down.

10、Move adjusting pin No. 1 to the in- sulating line on the disc at rear of gang. When the pin is correctly centered on the instilating line, the central dial lamp will go completely out. 6. Press down any other button in order to release the dial -tuning button and station button No. 1. Then press dow

11、n station button No. 1 again. The electric tuning mechanism will function to tune in the station, and the central dial lamp will stay on. 7. Repeat this process for the remaining stations. INSULATION LINE i Miscellaneous Plug for Extension Loudspeaker.-A two -contact female socket, equipped with a m

12、ale plug, is connected across the secondary of the output transformer on the loudspeaker fo facilitate the connection of an extension loudspeaker if de- sired. A permanent -magnet dynamic speaker, with voice -coil impedance of not less than 2 ohms is recommended: With a 2 -ohm voice coil, the extens

13、ion speaker will receive approxi- mately half the power output of the receiver; with a higher - impedance voice coil, the percentage of power delivered to the extension speaker will be decreased. A high -impedance magnetic -type speaker may be used in conjunction with a suitable coupling transformer

14、 such as RCA Stock No. 7853. Precautionary Lead Dress. - 1. Dress grid lead of 6K7 R -F away from detector section of gang to prevent oscillation. 2. Observe the following points to permit alignment of C band at 20 mc: C10, C11, and C12 from oscillator INDICATOR DRIVE CORD PULLEY 31280 SPRING 13638

15、DRUM 31273 IN REAR ROOVE OF DRUM SPRING 31418 START TUNING KNOB SHAFT PULLEY 31271 2. TURNS SPRING 31279 CONDENSER DRUM DRIVE CORD 31283 N FRONT GROOVE OF DRUM.) TUNING CONDENSER IN FULL MESH POSITION) S F d ONG C N WIRE -IN CABLE ARMCHAIR CONTROL UNIT SOLDER TO STATION - SETTING CONTACTS Service Da

16、ta section of gang must have short leads and be dressed away from the chassis and from the range -switch shield. 3. The ground braids from gang condenser must be flex- ible to prevent rnicrophonic howling. 4. R10 and R11 should be soldered as close as possible to A lug on 3rd I -F transformer. 5. Po

17、wer cord leads must be dressed away from the vol- ume -control wiring. MAGIC EYE C! RANGE INDICATOR 111. 2 3 6 a 5e -r Orr LOUo 4111111,1.1. ,IIMGC POWER -VOLUME FIDELITY CONTROL CONTROL TUNING IIQK,Q4,U A B X RANGE SELECTOR Location of Controls A sensitivity switch is mounted at the rear of the rec

18、eiver. INDICATOR- STRIP CORD 31278 BAND -SWITCH SHAFT PULLEY 31272 BANC INDICATOR DRIVE CORD Arrangement of Drive Cords for 7 auint) ( undenscr and Dial Indicator Universal Power Transformer ) Connectons um I(rnnqisonawcn a a-.L.c.o.- o -NM . YELLOW -w. ,Ym, /or . :I w r. lr 收音机爱 好者资料库 RadioFans.CN

19、PAGE 304-C IIQy, IIQK, IIQU Alignment Procedure Cathode -Ray Alignment is the preferable method. Connec- tions for. the oscillograph are shown in the chassis drawing. Output Meter Alignment.-If this method is used, connect the meter across the voice coil, and turn the receiver volume control to maxi

20、mum. Test-Oscillator.-For all alignment operations, connect the low side of the test -oscillator to the receiver ground terminal (G), and keep the output as low as possible to avoid a -v -c action. Calibration Scale on Indicator -Drive -Cord Drum. - The tuning dial is fastened in the cabinet and can

21、not be used for reference during alignment; therefore, a calibration scale is attached to the rear of the drum which is mounted on the front shaft of the gang condenser. The setting of the gang condenser is read on this scale, which is calibrated in degrees. The correct setting of the gang in degree

22、s, for each align- ment frequency, is given in the alignment table. As the first step in r -f alignment, check the position of the drum. The 0 mark on the drum scale must be vertical, and directly over the center of the gang -condenser shaft when the plates are fully meshed. The surface of the drum

23、must be flush with the end of the gang -condenser shaft. The drum is held to the shaft by means of two set screws, which must be tightened securely when the drum is in the correct posi- tion. Pointer for Calibration Scale.-Improvise a pointer for the calibration scale by fastening a piece of wire to

24、 the gang - condenser frame, and bend the wire so that it points to the 00 mark on the calibration scale when the plates are fully meshed. OWE SS TO PW1L TOMS. -NE LOW Top View, Showing Location of Tubes and Trimmers Dial -Indicator Adjustment.-After fastening the chassis in the cabinet, attach the

25、dial indicator to the drive cable with indicator at the left-hand end mark on the dial scales and gang condenser fully meshed. The indicator has a spring clip for attachment to the cable. For additional details, refer to booklet RCA Victor Re- ceiver Alignment. Steps Connect the high side of test-os

26、c. to- Tune test- osc. to- Turn radio dial to- Adjust the following to obtain maximum output 1 Turn fidelity control counter -clockwise (sharp), and sensitivity switch at minimum (open). 2 6K7 2nd I -F grid cap in series with .01 mfd. 455 kc A band, Quiet Point between 550-750 kc L22 and L23 (3rd. I

27、 -F Trans.) 3 6K7 1st I -F grid cap in series with .01 mfd. L19 and L20 (2nd I -F Trans.) 4 6L7 1st -dot. grid cap in series with .01 mfd. L16 and L17 (1st I -F Trans.) 5 Turn fidelity switch clockwise (broad) and check I -F response which should be a double -peaked curve. Leave fidelity counter -cl

28、ockwise (sharp) for all of the following steps. 6 Antennna Terminal in series with 300 ohms 2.5 me 2.5 mc 241 (B) L8 (osc.) 7 6.0 me 6.0 me B) 14 7 C14 (osc.) Use minimum capacity peak C27 (det.) Use maximum capacitypeak C4 (ant.) Use maximum capacity peak* 8 9.5 me 9.5 55(C) L7 (osc.) 9 20 me C) 20

29、 me 153 153 C7 (osc.) Use minimum capacity peak* 10 Antennna Terminal in series with 200 mmf. 600 kc 600 kc (A) 241 L9 (osc.) Rock gang 11 1,500 kc 1,500 kc (A) 1511 C16 (osc.) 12 Repeat steps 10 and 11. 13 Antennna Terminal in series with 200 mmf. 175 kc 175(X) 531 L10 (osc.) 14 350 kc 350 kc (X) 1

30、454 C17 (osc.) C23 (det.) 15 Repeat steps 13 and 14. * Check to determine that the oscillator trimmer has been a djusted to the correct peak by tuning the receiver approximately 910 kc lower, where a weaker signal should be received. NOTE: The oscillator tracks 455 kc above the signal on all bands.

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33、 y ;3 w O .5 c +I u 8 . 18-c, d v EE E v? O O oCi C n1 ECc 2 f, Kz.o. I; / .2 T1 240 210 150 125 RED- alH. RED v 5 100 PICK UP 1172n1/ M100 CONNCTQ ,C53 01MFD R100 1.2 MEG R101 470,000A 82 PIMP. LEFT -END vusNaurron 57 C101 .0025MF0 - .01 MFD Model 11QU Victrola Input Circuit Except for the changes

34、shown above, the schematic diagram of Model 11QU is the same as Models 11Q4 and 11QK IIII HilliiiIIIIIIIIIIIIIIIIIIIII111 111111111IIIIIIl1111I1111lII9lll111111I1111111I111i 11111111111IIIIIIIII1I111IIIIIIIIIII111111111III11111111111111111111111 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 1

35、60170180 R102 1 MEG. TAP R12 CONT VOL. O. 3 PAGE 307-C iIQ4, IIQK, IIQU R13 22,000+1 LONDON-RERUN-111411 A.-ROME MEXICO CITY-SPPID-BUENOS A. HAVANA-SCNINV-MOSCOW 31 M LONDON-ROME -PARIS LONDON- SCHINS NEW TORO BERLIN-TON TO-P ITTSGH BERLIN-PITTSBURGH RERUN- LONDON HIII2EN 25 M PRAGUE LIMA 19M PARIS

36、16M LONDON - PITTSBURGH BERLIN - NEW YORK 13M MC 7.5 8 1 h, 1 1 1, 1 1 1 1, i i 1 E i 1 1, 1 1 1 1 1 i i i, i 1 i., 1h. 1, i i ih , i i i i, i 1 i l i i 1, i 10 12 14 16 18 20 22 I C MC KC X. METERS 150 175 200 250 300 350 1 1 1 1 1 1 . KC 1 E 1 1 1 1 1 1 1 I 1 I 1 1 I 1 2000 1800 1b00 1400 1200 100

37、0 900 860 X METERS A METERS 500 450 1 1 400 1 350 1 1 300 , 250 1 , 1 1 1 200 METERS 1, 1, 1 1, , 1 1 1 1 , 1 K 50 600 700 800 1000 1200 140G 1600 K A MC 3.0 1 . I .2;5. 1 1 1 1 1 I I I E 1 r 1 1 1 4.0 1 1 1 1 1 1 1 1 1 5.0 1 1 1 1 1 6.0 1 MC 1 , 120M 100M 75M 62M COLOMBIA S. AMERICA) HAVANA 49 M RO

38、STON - TORONTO - N. Y. BOGOTA-MEA. CITY -CINCINNATI- PITTSBURGH RERUN -PANAMA CITY -CHICAGO -(ABACAS B 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 RLcci.er Dial Sr ales, and Corresponding 0-1800 Calibration ion- S, Irlrs REPLACEMENT PARTS Insist -on genuine Factory -tested parts

39、, which are readily identified and may be purchased from authorized dealers. STOCK No. 31492 31863 31867 32232 31276 31491 31282 30766 12714 12884 14392 12814 14079 12722 31871 31868 12723 12813 31270 DESCRIPTION RECEIVER ASSEMBLIES Bearing-Variable condenser motor rotor adust- ment-less bracket and

40、 cup assembly-Model 11QU Board-Antenna and ground terminal board- Models 11Q4 and 11QK only Board-Antenna and ground terminal board- Model 11QU only Body-Comprising 1 plunger body and 1 body spring Bracket-Band indicator mounting, complete ex- cept less band indicating strip, cord, and ten- sion spr

41、ing Bracket-Bracket and cup assembly for variable condenser motor rotor adjustment bearing- Model 11QU Bracket-Magic Eye mounting bracket and clip Cap-Rubber cap for Magic Eye Capacitor-Trimmer 2-12 mmfd. (C7, C16, C23) Capacitor-Trimmer 2-20 mmfd. (C14, C17) Capacitor -4.7 mmfd. (C57) Capacitor -5.

42、8 mmfd. (C22) Capacitor -6.8 mmfd. (C1) Capacitor -18 mmfd. (C5) Capacitor -20 mmfd. (C15) Capacitor -22 mmfd. (C18) Capacitor -56 mmfd. (C24) Capacitor -82 mmfd. (C100) - Model 11QU only Capacitor -100 mmfd. (C38, C39) STOCK No. 12720 12724 12725 31869 12952 31870 31552 31703 31704 5107 4838 14393

43、11315 4886 4839 12484 30867 5212 31868 31495 31237 31257 31690 31839 DESCRIPTION Capacitor -100 mmfd. (C43) Capacitor -120 mmfd. 7. 13, C28) Capacitor -150 mmfd. (C40) Capacitor -180 mmfd. (C8) Capacitor -330 mmfd. (C21) Capacitor -415 mmfd. (C1.) Capacitor -680 mmfd. (C30, C31, C34, C35) Capacitor

44、-2,500 mmfd. (C12) Capacitor -8,000 mmfd. (C10) Capacitor-.0025 mfd. (C54) - Model 11QU only Capacitor-.005 mfd. (C48, C49) Capacitor-.01 mfd. (C2, C25, C42, C44, C45, C46, C50, C53, C54, C101)-(C54-Models 11Q4 and 11QK only, C101-Model 11QU only) Capacitor .015 mfd. (C41) Capacitor-.05 mfd. (C52, C

45、33) Capacitor -0.1 mfd. (C8, C20, C29, C32) Capacitor -0.25 mfd. (C19, C37, C47, C51) . Capacitor -0.5 mfd. (C36) Capacitor -18 mfd. (C56)-Models 11Q4 and 11QK only Capacitor -16 mfd. (C56)-Model 11QU only Capacitor -20 mfd. (C55) Clutch-Variable condenser drive gear clutch and pinion gear-engages p

46、in on motor shaft Coil -11A band oscillator coil (L9) Coil-B band oscillator coil (L8) Coil-B and C bands antenna coil (L1, L2. L3) i PAGE 308-0 11 Q4, 11 QK, I IQU REPLACEMENT PARTS (Continued) STIOocK DESCRIPTION STIOocK DESCRIPTION 31841 Coil -B and C bands r -t coil (L11, L12) 31493 Spring -Vari

47、able condenser motor rotor adjust - 31255 Coil -C band oscillator coil (L7) ment bearing spring -Model 11QU 31837 Coil -X band oscillator coil (L10) 31232 Spring -Selector plunger tip spring 31838 Coil -X and A bands antenna coil (L4, 31230 Spring -Selector plunger body spring L5, L6) - 31279 Spring -Tension spring for band indicator 31840 Coil -X and A bands r -f coil (L13, L14, L15) 31970 Spring -Tension spring for push button switch latch bar 31842 Condenser -3 -gang variable tuning condenser 31242 Spring