Philco-51-T2102-Sams-132-10电路原理图.pdf

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1、PHOTO FACT* Folder PHILCO MODELS 51-T21O2 (Code 122), 51-T213O, 51-T2132, 51-T2133 (Code 121), 51-T2134, 51-T2136, 51-T2138, 51-T2175, 51-T2176 (Code 124) RADIO TUNING CONTROL PHONO AM-FM-TV SELECTOR SWITCH FINE TUNING CHANNEL SELECTOR SWITCH CONTRAST CONTROL TONE CONTROL VOLUME CONTROL ONOFF SWITCH

2、 VERTICAL HOLD CONTROL HORIZONTAL HOLD CONTROL BRIGHTNESS CONTROL PHILCO MODEL 51-T2176 TRADE NAME MANUFACTURER TYPE SET TUBES Philco, Models 51-T2102 (Code 122), 51-T2130, 51-T2132, 51-T2133 (All Code 121 ), 51-T2134, 51-T2136 51-T2138, 51-T2175, 51-T2176 (All Code 124) Philco Corp., Tioga And C St

3、reets, Philadelphia, Pa. Television Receiver Twenty Three (TV Only Receivers) Twenty Eight (Combination Receivers) POWER SUPPLY 110-120 Volts AC-60 Cycle TUNING RANGE(TV) (AM) (FM) Channels 2 thru 13 540-1620KC 88-108MC RATING (TV) 2.6 Amp. 117 Volts AC (Radio) 1.6 Amp. 117 Volts AC INDEX Alignment

4、Instructions 6, 7, 8 Disassembly Instructions 19 Drive Cord Stringings f 7 Horizontal Sweep Circuit Adjustments 19 Parts List And Description (Radio And TV) J2 thru 17 Parts List And Description (Remote Control Unit ) 30 Photographs Cabinet - Rear View 17 Capacitor Identifications (Radio Chassis) 23

5、 Capacitor Identifications (RF-IF Chassis) 4 Capacitor Identifications (Sweep Chassis) 20 Chassis - Top View (Radio Chassis) 22 Chassis - Top View ( RF-IF Chassis) 5 Photographs (Continued) Chassis - Top View ( Sweep Chassis ) 21 RF Tuner (TV) 26 Resistor Identification (Radio Chassis) 24 Resistor I

6、dentification (RF-IF Chassis) 9 Resistor Identification (Sweep Chassis) ; 25 Remote Control Unit 27 thru 30 Schematic (Radio) 11,18 Schematic (Remote Control ) 31 Schematic (TV) 2 Tube Placement Charts (TV) 3 Voltage And Resistance Measurements (Radio) 11,18 Voltage And Resistance Measurements (TV)

7、10 O. r- (D ft _ O o SB o *? 28. 10 _ CO K) 10 S| Ui S? K -H Os to ft 0 in f 5 K RECORD CHANGER UNIT - PHILCO MODEL M-20. SEE PHOTOFACT FOLDER #11 - SET t 103 OR RECORD CHANGER MANUAL CM-3. HOWARD W. SAMS j I / VI9 i ;:( 1x2 i s HV RECT- - 1 T 1 PUT ! 1 _. L 1 I 1 1 , 1 I / - ( i L2 j 1 xx 1 f -J(i9

8、 i j ri / s - H H . G j , VERT.OSC.- 1 1 1 l X / S SYNC PHASE INV. T5 | 1 x . y / N / V2I V DAMPER 5U4G fV5 VI4 L1 - VLVRKT./ I 7N? / L J V X VERT V / OUTPUT POTTOM WIFWJ TUBE PLACEMENT CHART CC ILL- L S ZCI ti 1S OC1 ZL IS (ZCI PD) CO IZJL- L S S11QOW ODIIHd RadioFans.CN 5 o RF-IF CHASSIS-BOTTOM VI

9、EW-CAPACITOR IDENTIFICATION RadioFans.CN RF-IF CHASSIS-BOTTOM VIEW-RESISTOR IDENTIFICATON I 1- L S L S OC I Cl- 1 fi (t Z Lto I Cl- 1 S S13QOW ODIIHd RadioFans.CN o m O VOLTAGE AND RESISTANCE MEASUREMENTS VOLTAGE READINGS RESISTANCE READINGS Hem V 1 V 2 V 3 V 4 V 5 V6 V7 V 8 V9 V 10 V l l V12 V 13 V

10、 14 V 15 V 16 V17 V18 V 1 9 V20 V21 V22 V23 Tube 6BQ7 12AV7 6AU6 6AU6 6AU6 6CB6 12AU7 12AV7 6AQ5 6AU6 6T8 6Y6G 12AU7 7N7 6S4 6SN7GT 6CD6G 6BY5G 1X2 1X2 5U4G 5U4G 20DP4 Pin 1 220VDC 135VDC .3VDC .3VDC .3VDC 0V 120VDC 175VDC -1VDC -.6VDC -.8VDC 0V 9.8VDC 0V 0V -3.2VDC 6v 525VDC Pin 2 5. 6 VDC -1. 5VDC

11、 OV OV OV 1.8VDC OV OV 7.8VDC OV 1.8VDC 6VAC 9. 8VDC OV 45VDC 12VDC i . *- 90VDC 6.3VAC 525VDC Pin 3 UOVDC OV OV OV OV OV 1. 7VDC 9.4VDC OV OV -.8VDC 160VDC 9. 6VDC 170VDC 85VDC OV -30VDC OV OV Pin 4 6. 3VAC OV 6. 3VAC 6.3VAC 6. 3VAC 6.3VAC 6. 3 VAC OV 6. 3VAC 6. 3VAC OV 110VDC OV -15VDC -28VDC OV -

12、*.- -75VDC -27VDC 310VDC Pin 5 OV ov 120VDC 125VDC 130VDC 90VDC 6.3VAC OV 230VDC 65VDC 6VAC OV OV -.4VDC 6.3VAC I. C 305 VDC _ ; ? -27VDC 310VDC Pin 6 110 VDC 100VDC 120VDC 125VDC 130VDC 125VDC -.4 VDC 130VDC 130VDC 65VDC OV 235VDC 20 VDC 45VDC OV OV 320VDC OV Pin 7 -.9VDC 5-7VDC .7VDC .7VDC .7VDC O

13、V .3VDC -.2 VDC -1VDC OV OV OV -.4 VDC OV ov ov ov 525VDC Pin 8 OV OV 1.2VDC .8VDC -.6VDC 9.8VDC OV 6. 3VAC OV 6.3VAC 125VDC 525vnn Pin 9 OV fi.3VAC OV 6.3VAC 80VDC 6. 3VAC 470VDC 340VDC TOP CAP * * DO NOT MEASURE * DO NOT MEASURE ov ov ov 320VDC 320VDC OV 480VDC OV PIN 10 315VDC 300VAC 300VAC PIN 1

14、1 80VDC OV OV PIN 12 6. 3VAC 300VAC 300VAC OV OV 320VDC 32ovnc Item V 1 V 2 V 3 V 4 V 5 V 6 V 7 V 8 V9 V 10 V 1 1 V 12 V 13 V 14 V 15 V 16 V 17 V 18 V 19 V20 V 2 1 V22 V23 Tube 6BQ7 12AV7 6AU6 6AU6 6AU6 6CB6 12AU7 12AV7 6AQ5 6AU6 6T8 6Y6G 12AU7 7N7 6S4 6SN7GT 6CD6G 6BY5G 1X2 1X2 5U4G 5U4G 20DP4 Pin

15、1 fi.BKn T2.4KS1 550KS3 545KSJ 545KI2 .2n t3Kfi t5.2Kn 750KS! 680KS2 Inf. Inf. 35Kn on M. IMeg nf. lOOKn Inf. Inf. Inf. Inf. on Pin 2 Inf. lOOKf! on on on ison 120Kn SMeg 1.2KSJ on 34Kn .sn 35Kfi on 5. 5Kn 470n t45Kn .in #.m Tnf. nf. sxn 8Kn 470Kn Pin 3 Inf. on on on on on i5on lOKn on on Inf. ti.RK

16、n lOKn #1. 5Meg * 4Mee 2.2Meg 330Kn on Inf. nf. 5Kn Inf. PIN 10 t64n Pin 4 .2n on .in .in .2(1 .2(1 .2(1 on un .in on tsKn on 520Kn on 340KS2 IMee tson Inf. Inf. 62n 62n PIN 11 IBOKn Pin 5 .in on T2.7Kn t2.4Kn t2.1Kn t7.mn .2n on f2.7Kn t9Kn .4n 470Kn on tlMee .in *50Kn IMee tson Inf. Inf. Inf. Inf.

17、 PIN 12 .in Pin 6 Inf. TlBKn t2.mn t2.4Kn t2.iKn t2. 4Kn 330Kn tiiKn t2.mn t9Kn Inf. tsoon tisKn ti5Kn 2.2Meg on *50Kn Inf. Inf. Inf. 62n Ban Pin 7 IMeg lOKn 68n ean 68n on 4.6Kn 1.2Mep 7ROKn on on on 7Meg on Inf. on OS! looxn Inf. Inf. Inf. Tnf. Pin 8 on on i.sKn loon lOMef ifinn on .in Inf. .in ji

18、2Kn looKn Inf. Inf. BKn RKn Pin 9 on .in jn .in f370Kn .in *5.7Meg TOP CAP #33n TOP CAP #ieon TOP CAP Inf. FUNCTION SWITCH IN TV POSITION ALL MEASUREMENTS TAKEN WITH PICTURE TUBE REMOVED TAKEN WITH VACUUM TUBE VOLTMETER * DO NOT MEASURE FUNCTION SWITCH IN TV POSITION ALL MEASUREMENTS TAKEN WITH PICT

19、URE TUBE REMOVED f MEASURED FROM PIN 8 OF V22 # MEASURED FROM PIN 8 OF V18 1. DC Voltage measurements are at 20,000 4. Line voltage maintained at 117 volfs for volt- ohms per volt; AC Voltage measured at 1,000 age readings ohrr 2. Pin numbers are counted in a clockwise direc- tion on bottom of socke

20、t. 3. Measured values are from socket pin to com- mon negative unless otherwise stated. 5. Front panels controls set at minimum. 6. Where readings may vary according to the setting of the service controls, both minimum and maximum readings are given. RadioFans.CN FM RF AMP. 1F= 455 KC AM IF=9.I MC F

21、M Item V24 V25 V26 V27 V28 Tub* 6AU 12A 7 BBA 6AU 6BC n.1 ov ja$c. ov -.svoc PI.! OV ;vi. ov -1VDC Pi 3 *i OV ov rhj .SVAC BVAC .8VAC .BVAC .8VAC Pin S 195VDC U15VDC OV pma -$Hr- TuSTOC -.6VDC B.7 1.2VDC -*vgg_ 1.2VDC OV n.8 Z-VPC -.5VDC Pin? OV H, V2 V25 m V28 Tubv BBAB SAUfi 8BCT Phi on HllKO taan

22、 Int. JURED FROM PIN 8 OF V2Z FUNCTION SWITCH IN EITHER FM OR AM POSITION t TAKEN IN FM POSITION TAKEN IN AM POSITION THE COOPERATION OF THE MANUFACTURER OF Th RECEIVER MAKES IT POSSIBLE TO BRING YOU THIS SER A PHOTOFACT STANDARD NOTATION SCHEMATIC Howord W. Sams however, when the control is turned

23、to its maximum rotation, clockwise or counterclockwise, the spring tension is overcome, allowing the toggle(29) to slip off the clutch tooth with an accompanying clicking noise until the voltage is removed from the solenoid (23), or until the control is made to turn in the opposite direction. This s

24、afety feature prevents the gears from locking. An ordinary driver (9), instead of a safety driver (8), is used on the channel selector control since this control can be rotated continuously. When the voltage is removed from the solenoid (23), the return spring (27) causes the disengagement of the cl

25、utch tooth with the toggle(29). PAGE 28 RadioFans.CN X? o E O. r- (D ft - O K ui 7* a Ml a a to _ r! o 0,0 8. a 0 - K OPERATION OF CHANNEL SELECTOR When the station selector switch on the Control Box (2) is operated, the motor and channel selector solenoid are energized. As the magnetic force set up

26、 by the sole- noid pulls the clutch and gear assembly (21) inward, closing the solenoid switch (10), a tooth of the clutch engages with the toggle of the ordinary driver (9) and starts the tuner shaft (11) rotating. The roller (41A) (See Fig. 5) fastened on the centering lever is subjected to an upw

27、ard force as well as a lateral force by the star wheel of the detent plate assembly (32). Until the centering lever (38) has traveled far enough sideways to close the cycling switch (34), the centering pin (46) will prevent any upward motion. The cycling switch (34) is in series with the solenoid sw

28、itch (10) and together parallel the station selector switch in the control box. If the station switch on the control box is released before the cycle is completed, voltage is still applied to the solenoid through the cycling switch (34 and the solenoid switch (10). When the cycle is completed, the d

29、etent roller (41B) rolls down into one of the detents of the detent plate (32) star wheel, releasing the tension on the detent spring (42) which returns the centering lever (38) to the center of the cycling switch (34) thereby open- ing the switch. This cuts off voltage to the solenoid, and motor, a

30、llowing the return spring (27) to push the clutch and gear assembly out of engagement with the toggle on the ordinary driver (9), and opening the solenoid switch (10). During manual rotation of the tuner shaft no voltage is applied to the motor or solenoid as the solenoid switch (10), in series with

31、 the cycling switch (34), remains open. The other section of the solenoid switch is used to mute the sound during remote control operation of the channel selector. This switch, closed only during remote operation, grounds the hot side of the speaker voice coil. PAGE 29 RadioFans.CN SERVICING HINTS 1

32、. Buzzing a. Armature seating improperly on pole-piece face of solenoid. b. Burrs on pole-piece. c. Foreign matter between armature and pole-piece. d. Armature engaging solenoid switch (10) before last 1/64 of movement. e. Uneven surface on inside of armature (22). 2. Armature Binds on Solenoid Bush

33、ing a. Foreign matter or burrs on Solenoid Bushing 3. Tuner Fails to Rotate a. Line voltage too low. (It should not be less than 105 Volts) b. Faulty motor capacitor (4). c. Faulty motor (15). d. Faulty transformer.( e. Tuner shaft (11) binding. ( The shaft must be aligned so it rotates freely and h

34、as .005 to .015 end-play, 4. Clutch and Gear Assemblies Fail To Rotate When Motor Is Energized. a. Oil or grease on motor belt (14). b. Motor belt loose. c. Driving pinion (5) loose on driving gear (13) shaft. d. Burrs or foreign matter in gear teeth. e. Leads fouling moving parts. f. Bent pinion ge

35、ar shaft. 5. Clutch Teeth Fail to Engage Toggle of Driver When Solenoid is Energized a. Clutch teeth more than 1/32 from toggle when clutch is in neutral position. 6. Driver Fails to Rotate Control Shaft When Clutch is Engaged a. Driver loose on control shaft. LUBRICATION Lubrication is applied at t

36、he time of manufacture and should be sufficient to last for a long period of time. However, in the event of repairing or replacing of parts, parts needing lubrication should be cleaned with carbon tetrachloride and lubricated as follows: Use a good cup grease on the following: 1. Intermediate pulley

37、 and gear (12). 2. All gear teeth. 3. Toggle (29) of safety drivers (8). 4. Teeth of clutch (20) and (21). 5. Reel Bearings. Use S.A.E. 20 oil on the following: 1. Threads and bearing surfaces of the solenoid bushings. 2. Motor Bearings 3. Shaft of volume control pulley assembly (24). 4. Fine tuning

38、 shaft. 5. Studs of link assembly (31). 6. Bearings of tuner drive shaft. 7. Left side of reel (3) and washer. Use a mixture of grease and graphite on the following: 1. Bearing surface of reel (3) power spring. . Use graphite on the following: 1. Reel (left side) and pawl. j Do not allow any oil or

39、grease to come in contact with the drive belt (14) or the belt driving surface of the intermediate pulley (12). Any oil or grease on these parts should be removed with carbon tetrachloride. PARTS LIST 10 11 12 13 14 15 16 17 18 19 Part Number 42-1950 42-1950-1 56-8581 56-8637 56-8642 42-1952 56-8636

40、 56-8643 56-8644 30-2355-3 56-8628 1W60977FE7 56-8805FA15 56-8806 76-6475 42-1953 76-6425 56-8736 76-6413 54-8318 35-1465 56-8628-1 56-8615 56-8661 Cable Control Box Assembly -Consists of: Switch (Channel Selector, Contrast)2 used Switch (Fine Tuning, Volume -On/Off) 2 use Spring Reel Assembly - Con

41、sists of: Bearing, reel Ring, spring retainer Slip-Ring Assembly Spring, power Pawl Ratchet Capacitor, motor Pinion, gear - 5 used Washer, E, pinion mounting Toggle Spring Safety Driver - 3 used Ordinary Driver Assembly Solenoid Switch Assembly Shaft Assembly (Side of Tuner) Intermediate Pulley and

42、Gear Driving Gear Assembly Belt Motor Assembly Pinion Idler - 4 used Bushing Set Screw Collar 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Part Number 76-6424 76-6424-1 76-6416 76-6428 76-6526 56-7042 56-8613FE15 56-8804 1W42310FE7 76-6525 76-6420 56-8592 42-1950

43、76-6422 56-8023 56-8608 76-6421 56-8603 1W60977FE7 56-8597 56-8817 56-8812 76-6419 56-8604 Clutch Assembly - 3 used Clutch Assembly (Channel Selector) Armature Solenoid Coil Assembly Shaft and Pulley Assembly (Volume Control Driver) Shaft and Pinion Assembly (Fine Tuning) Nut Return Spring Neoprene

44、Washer Toggle Washer, retaining Link Assembly Detent Plate Assembly Switch Handle Bushing Switch (Cycling) Rear Bracket Assembly Spring, shaft grounding Bracket (Tuner Top) Centering Lever Assembly Spacer, brass E Washer Detent Roller Detent Spring Washer, steel Bracket Assembly (Bottom) Spacer Bushing Centering Pin PAGE 3O RadioFans.CN TUNER ASSEMBLY A PHOTOFACT STANDARD NOTATION SCHEMATIC Howord W. Sams & Co., Inc. 1951 REMOTE CONTROL WIRING DIAGRAM 132-10 RadioFans.CN