Philco-49-1150-49-1175-Sams-70-6电路原理图.pdf

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1、PHOTOFACT* Folder PHILCO MODELS 49-1150, 49-1175 TONE CONTROL ON-OFF SWITCH TUNING CONTROL PHONO BAND SWITCH VOLUME CONTROL VOLUME CONTROL ON-OFF SWITCH CONTRAST CONTROL BRIGHTNESS -CHANNEL SELECTOR PHILCO MODEL 49-1175 TRADE NAME Philco, Models 49-1150, 49-1175 MANUFACTURER Philco Corp., Tioga - I

2、I 4 i 220 ?* -390 SF MMF J_ -w 560K RadioFans.CN 6K66T SPEAKER CABLE TO RADIO RadioFans.CN o I CO co co Tl m RadioFans.CN ft * o (122) (L2i) (LIT) (L20) (119) (LIB) (lj) (T5) (L15) (j CHASSIS BOTTOM VIEW-TRANS., INDUC PAGE 4 RadioFans.CN .127) (121) (114) (m) (Jfl) (L23) (12) (V2) (HO) JCTOR AND ALI

3、GNMENT IDENTIFICATION PAGE 9 RadioFans.CN o in ft o o N Ui TUBE PLACEMENT CHART PAGE 5 RadioFans.CN TV ALIGNMENT INSTRUCTIONS ALIGNMENT INSTRUCTIONS READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT Turn the AVC switch to the off position and set the contrast control at approximately 3/4 of its rotation in

4、 the clockwise direction. Pull the horizontal oscillator tube (7N7-V19) to eliminate the high voltage shock hazard during the alignment procedure . VIDEO IF ALIGNMENT Remove the oscillator tube (6J6-V3) and remove the oscillator clip coil of any channel from the turret and switch the tuner to that c

5、hannel. Use an ungrounded tube shield over the mixer tube as a means of injecting the signal. Attenuate the signal generator so as not to exceed 2 volts on the VTVM. DUMMY ANTENNA Tube Shield Tube Shield Tube Shield Tube Shield Tube Shield Tube Shield Tube Shield DUMMY ANTENNA Tube Shield DUMMY ANTE

6、NNA Tube Shield Tube Shield SIGNAL GENERATOR COUPLING High side to un- grounded tube shield over mixer tube (V2). Low side to chassis. SWEEP GENERATOR COUPLING High side to un- grounded tube shield over mixer tube (V2) . Low side to chassis. SWEEP GENERATOR COUPLING High side to un- grounded tube sh

7、ield over mixer tube (V2) . Low side to chassis. SIGNAL GENERATOR FREQUENCY 22 . IMC (Unmod. ) 24.9MC (Unmod. ) 28 . IMC (Unmod. ) 23.9MC (Unmod.) 22. IMC (Unmod.) 26. SMC (Unmod . ) 25. SMC (Unmod.) CHANNEL Any 11 CONNECT VTVM DC Probe to Point Ql Common to chassis. , OVERALL VIDEO IF R SWEEP GENER

8、ATOR FREQUENCY 25MC (10MC Sweep) MARKER GENERATOR FREQUENCY 22. IMC 26.6MC 28. IMC SOUND SWEEP GENERATOR FREQUENCY 22. IMC (IMC Sweep) MARKER GENERATOR FREQUENCY 22.1M3 CHANNEL Any F ALIGNM CHANNEL Any ADJUST Al A2 A3 A4,A5 A6 A7 A8 :SPONSE CHECK CONNECT SCOPE Vert . Amp . thru 10K2 resistor to poin

9、ts) Low side to chassis. ENT CONNECT SCOPE Vert. Amp. thru 10K2 resistor to Polnt. Low side to chassis. REMARKS Adjust for minimum deflection. Adjust for maximum deflection. Adjust for minimum deflection. Adjust for maximum deflection. Adjust for minimum deflection. Adjust for maximum deflection. Ad

10、just ADJUST A1.A2, A3,A4, A5.A6, A7,A8, A9 ADJUST A10,A11 A18,A13 for maximum deflection. REMARKS Adjust for pattern and placement of markers as per Fig 1. REMARKS Adjust for maximum indications. Adjust A12 for maximum amplitude and straightness of diagonal line going from peak to peak. Adjust A13 s

11、o 22. IMC marker is located at center of diagonal line as per Fig 2. Replace oscillator tube (V3). OSCILLATOR ALIGNMENT The oscillator alignment should not be attempted until the sound IF channel has been accurately aligned The tuner of this receiver will receiver eight of the twelve available chann

12、els. The eight received will depend upon the coils which are in the tuner. Do not attempt to align a coll set for any channel other than that which it is intended. The alignment outline below lists the sound carrier frequencies for all twelve channels. Disable the AFC system during the oscillator al

13、ignment by temporarily grounding Point C. The oscillator coil slug adjustments are available through the hole in the front panel of the chassis. As each channel is switched in, the oscillator coil slug for that channel is in line with the hole In front of the chassis. DUMMY ANTENNA Two 125S carbon r

14、es. SIGNAL GENERATOR COUPLING Across high band antenna terminals with 1252 resistor in each generator lead. Across low band antenna terminals with 1252 resistor in each generator lead. SIGNAL GENERATOR FREQUENCY 215.75MC 209.75MC 203.75MC 197.75MC 191.75M3 185.75MC 179.75MC 87.75MC 81.75MC 71.751* 6

15、5.75MC 59.75M3 CHANNEL 13 11 10 9 8 7 6 5 4 3 2 CONNECT VTVM f Probe to Point Common to assis. ADJUST 414 A15 A16 A17 A18 A 19 A20 A21 A22 A23 A24 A25 REMARKS Adjust for zero reading. A positive and negative reading will be obtained on either side of the correct setting. 10 11 13, FIG. I FIG. 2 PAGE

16、 6 RadioFans.CN RADIO ALIGNMENT INSTRUCTIONS 14 15 16 17 18 19 17 18 19 20 21 22 ALIGNMENT INSTRUCTIONS-READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT If alignment is to be done on both FM and AM bands, the AM alignment should be done first. Use Isolation transformer If available. If not connect a .1MFD

17、 capacitor In series with low sloe of signal generator and B-. Volume control should be at maximum position. Output of signal generator should be no higher than necessary to obtain an output reading. Use an insulated alignment screwdriver for adjusting. The calibration points should be marked by pen

18、cil on the dial bacKplate when the receiver Is removed from the cabinet The reference point from which the measurements are made is the left hand edje of the dial backplate. Pointer setting with tuning gang closed 3 11/16, 1500KC-9 1/16, 1600KC-9 7/16, 92MC-5 5/16, and 105MC-8 7/16. AM ALIGNMENT DUM

19、MY ANTENNA .1MFD SIGNAL GENERATOR COUPLING High side to terminal #1 of AM antenna ter- minal strip. Low side to B-. Loop Loop SIGNAL GENERATOR FREQUENCY 455KC 1600KC 1500KC BAND SWITCH POS. AM RADIO DIAL SETTING 540KC 1600KC 1500KC OUTPUT METER Across ter- minal 12 AC Voltage measured at 1,000 ohms.

20、 2. Pin numbers are counted in a clockwise direc- tion on bottom of socket. 3. Measured values are from socket pin to com- mon negative unless otherwise stated. 4. Line voltage maintained at 117 volts for volt- age readings. 5. Front panels controls set at minimum. 6. Where readings may vary accordi

21、ng to the setting of the service controls, both minimum and maximum readings are given. t Measured From Pin 7 Of V24. t Measured From Pin 8 Of V23. Measured From Pin 8 Of V21. Measured From Output Of M2. A B - Line At Switch Used As Negative RadioFans.CN RF TUNER-BOTTOM VIEW RadioFans.CN CHASSIS BOT

22、TOM VIEW-CAP PAGE 18 RadioFans.CN PACITOR IDENTIFICATION PAGE 1 1 RadioFans.CN cr i o DO GO co oo r ieo2 40 , iiLi ,n i 1 * I = I J_ cstl6 3200 660jv 3 40 x IT oo6 _L)I Irj - = liT 1 Hni i i ; CONTROL =J 20 L -006 fc- it IP ilL j j i | /7T77 100 T 100 T T J MMF MMF M / urn 111 it PAGE 19 RadioFans.C

23、N ANT. CONNECTIONS WIDTH CONTROL HORIZ. LIN. AFC TEST PLUG FOCUS CABINET-REAR VIEW DISASSEMBLY INSTRUCTIONS HEIGHT 1. Remove nine push-on type control knobs from TV and radio panels. 2. From front center bottom of cabinet, push back spring clamp and remove lamp housing with downward pull. Disengage

24、lamp sockets (two) and wires and feed back up thru hole to rear of cabinet. 3. Remove seven phllllps head screws from left rear back cover. Remove cover. (Radio and record player now visible.) 4. Remove seven phllllps head screws from right rear back cover. Remove cover. (TV set Is now visible). 5.

25、Remove two screws from board across rear of phonograph. Spacers are between board and phono- graph. (This enables phono front door to open. 6. Loosen 3 screws on terminal board at rear of receiver and slip off one white, two black, and one green wires. 7. Remove two cables from rear of receiver chas

26、sis with slight pull. 8. Remove four 3/8 bolts from under receiver mounting board. 9. Pull out receiver power cord from left rear side of TV chassis. 10. Remove rubber grommets from under two front corners of record player and rear center. Unscrew flat nuts. These nuts are spring loaded and springs

27、will drop off studs when nuts are removed. 11. Remove tape and unsolder two leads spliced under record changer (red to white and black to brown). 12. Remove record player from cabinet. 13. Remove radio from cabinet. 14. Remove speaker plug from left rear of TV chassis. 15. Remove four 3/8 hex nuts a

28、nd paper washers from speaker mounting. Remove speaker. 16. Remove HV cap from TV picture tube. 17. Remove TV picture tube socket. 18. Remove plug from top rear of TV chassis leading to picture tube. 19. Remove four 5/16 bolts from under side of TV chassis support board. 20. Slide out TV set. 21. Re

29、move three 7/16 hex nuts from large end ring holding picture tube. 22. Remove two 7/16 hex nuts from picture tube neck braces. 23. Push back braces and remove picture tube by sliding back. PAGE 20 RadioFans.CN PARTS LIST AND DESCRIPTIONS TUBES (SYLVANIA or Equivalent) ITEM No. VI V2 V3 V4 V5 V6 V7 V

30、8 V9 V10 vn VIS V13 V14 V15 V16 V17 vie V19 V20 V21 V22 V23 V24 V25 V26 V27 V28 V29 V30 V31 V33 USE RF Amp. Mixer Oscillator 1st Video IF Amp. 2nd Video IF Amp . 3rd Video IF Amp. 4th Video If Amp . Video Det.- AGC Video Amp.- Video Outpul DC Restorer- Sync. Amp. 1st Sound IF Amp. 2nd Sound IF Amp.

31、Ratio Detector AF Amp. Audio Output Sync. Pre Amp.- Sync. Sep. Vert. Osc. de IF IF IF k IF IF k IF IF IF k ,wo IF IF IF IF Fl Lo k 11 Grid Decoupling Cathode (Wire Wound) Grid Cathode Grid Cathode Transfo rk Grid Co Cathode Plate Decoupl Iter id Shunt 20% (Wire Wound) 20% rraer Shunt 20% 11 Shunt in

32、g 20% Diode Load G 11 p be ut ut 11 ut 11 ec be vl IF IF IF IF IF IF rid Shunt late Cathode Grid Cathode Shunt Plate n ter tion Grid ler Grid Cathode 20% 20% 20% 5% 551, 20% 20% 20% Transformer Shunt Decoupling Grid Plate 20% ITEM No. R6.7 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R82

33、R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 Rill R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R1

34、46 R147 R148 R149 R150 R151 R152 R153 R154 R15S R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173A 1 B RATING RESISTANCE 22K2 472 5.12 10K2 68002 68002 68K2 68K2 47K2 330K2 15K2 270K2 470K2 470K2 4.7 Meg. 47K2 560K2 1 Meg. 2702 470K2 10K2 51002 10K2 4.7 Meg. 1

35、0K2 56K2 100K2 68K2 10KS 1 Meg. 470K3 10K2 2.2 Meg. 1 0 0 0 2 33002 68K2 10K2 1 Meg. 10K2 39002 33K2 22K2 82002 82002 220K2 10K2 68K2 100K2 100K2 180K2 3.3 Meg. 560K2 42K2 82K2 10K2 82002 1002 220K2 1002 39002 122 122 47K2 2702 10K2 19002 1 Meg. 562 332 680KS2 680K2 560K2 1 Meg. 1002 15KS 10KS 15002

36、 10K2 15K2 10K2 682 682 1 Meg. 15002 10K2 15Kffi 33K2 1 Meg. 472 10002 3.3 Meg. 330K2 682 682 1 0 0 0 2 10KS 47KS2 47KS 100K2 47K2 10 Meg. 270K2 47K2 470K2 2202 10K2 32002 1802 WATTS 4 4 2 4 I i 4 4 1 X i X 4 i 4 l 5 4 4 1 1 4 1 1 4 1 4 1 4 4 4 i X 4 4 4 1 1 4 4 1 4 4 4 5 & 2 Z 4 4 10 10 1 2 4 1 1 4

37、 4 4 4 4 4 4 4 4 4 2 1 5 J REPLACEMENT DATA PHILCO PART No. 66-3228340 66-0478340 66-9478340 66-3108340 66-2688340 6 6 - 2 6 8 8 3 4 0 66-3688340 66-3688340 66-3478340 66-4338340 66-3158340 66-4278340 66-4478340 66-4478340 6 6 - 5 4 7 8 3 4 0 66-3474340 66-4564340 66-5108340 66-1274340 6 6 - 4 4 7 8

38、 3 4 0 66-3108340 33-1335-18 66-3108340 66-5478340 66-3108340 66-3564340 66-4104340 66-3688340 66-3108340 66-5108340 66-4474340 66-3108340 66-5228340 6 6 - 2 1 0 4 3 4 0 66-2338340 66-3688340 66-3108340 66-5108340 6 6 - 3 1 0 8 3 4 0 66-2398340 66-3334340 66-3228340 66-2828340 66-2828340 66-4228340

39、66-3108340 66-3688340 6 6 - 4 1 0 4 3 4 0 66-4104340 66-4188340 66-5334340 66-4568340 33-1343-2 66-3824340 66-3108340 66-2828340 66-1108340 66-4228340 66-1105340 66-2395340 66-0125340 6 6 - 0 1 2 5 3 4 0 66-3478340 66-1274340 33-1336-21 33-3435-15 6 6 - 5 1 0 4 3 4 0 66-0565340 66-0338340 66-4684340

40、 66-4684340 66-4568340 66-5108340 66-1108340 66-3158340 6 6 - 3 1 0 8 3 4 0 66-2158340 66-3108340 66-3158340 66-3108340 66-0688340 66-0688340 66-5108340 66-2158340 66-3108340 66-3158340 66-3338340 66-5108340 66-0478340 66-2108340 66-5338340 66-4338340 66-0688340 66-0688340 6 6 - 2 1 0 8 3 4 0 66-310

41、8340 66-3478340 66-3478340 66-4108340 6 6 - 3 4 7 8 3 4 0 66-6108340 66-4278340 66-3478340 66-4473340 66-1228340 66-3104340 33-3435-23 IRC PART No. BTS-22K BW-4-47 BTS-10K BTS-6800 BTS-6800 BTS-68K BTS-68K BTS-47K BTS-330K BTS-15K BTS-270K BTS-470K BTS-470K BTS-4.7 Meg. BTA-47K BTS-560K BTS-1 Meg. B

42、W-1-270 BTS-470K BTA-10K Afl-5000 BTS-10K BTS-4.7 Meg. BTS-10K-5% BTA-56K BTA-100K BTS-68K BTS-10K BTS-1 Meg. BTA-470K BTS-10K BTS-2.2 Meg. BTA-1000 BTS-3300 BTA-68K BTS-10K BTS-1 Meg. BTS-10K BTS-3900 BTA-33K BTS-22K BTS-8200 BTS-8200 BTS-220K BTS-10K-5% BTS-68K BTA-100K-5% BTA-100K-5% BTS 180K BTA

43、-3.3 Meg. BTS-560K BTA-82K BTS-10K BTS-8200 BTS-220K AB-100 BT-2-3900-5% BW-2-12 BR-2-12 BTS-47K AB-10K AB-2000 BTA-1 Meg. BW-4-33 BTA-680K BTA-680K BTS-560K BTS-1 Meg. BW-4-100 BTS-15K BTS-10K BTS-1500 BTS-10K BTS-15K BTS-10K BW-4-68 BW-4-68 BTS-1 Meg. BTS-1500 BTS-10K BTS-15K BTS-33K BTS-1 Meg. BW

44、-4-47 BTS-1000 BTS-3.3 Meg. BTS-330K2 BW-4-68 BW-4-68 BTS-1000 BTS-10K BTS-47K BTS-47K BTS-100K BTS-47K BTS-10 Meg. BTS-270K BTS-47K BTS-470K BW-2-220 BTA-10K I I IDENTIFICATION CODES Voltage Divider Balancing (Wire Wound) Disc. Filament (Wire Wound) 5% De-emphasis Balancing n Disc. Load Disc. Load

45、Tone Compensation Bias Filter Voltage Divider AFC Network 20% 20% 1st AF Grid 20% 1st AF Plate 1st AF Screen Output Grid 20% Output Cathode Sync. Pre-Amp. Grid 20% Sync. Pre-Amp. Plate Filter (Wire Wound) Sync. Sep. Grid Sync. Sep. Grid Voltage Divider 5% Sync. Sep. Plate Vert. Osc. Decoupling Vert.

46、 Osc. Grid Vert. Discharge Grid Vert. Discharge Plate Vert. Discharge Decoupling Vert. Output Grid 20% Vert. Output Cathode Vert. Peaking Voltage Divider Sync. Amp. Grid 20% Voltage Divider Sync . Amp . Plate Sync. Amp. Plate Decoupling Filter Integrator n w AFC Feedback Horlz. Osc. Transformer Shun

47、t 5% Horiz. Osc. Plate Horiz. Osc. Grid 5% Voltage Divider 5% Horlz. AFC Filter Voltage Divider Horlz. AFC Grid Voltage Divider Temp. Comp. Voltage Divider See Note 1 Filter Horlz. Peaking Parasitic Suppressor 20% Horiz. Output Grid Horlz. Output Cathode (Wire Wound) Horlz. Output Screen 5% Bias Net

48、work See Note 1 n n nun Bias Filter Filter (Wire Wound) See Note 1 Filter (Wire Wound) Bleeder Surge Llmlter Pilot Lamp Shunt (Wire Wound) HV Filter Feedback FM RF Grid 20% FM RF Cathode 20% FM RF Screen 20% FM Conv. Grid 20% FM Conv. Cathode 20% FM Oonv. Plate 20% FM Osc. Grid 20% FM Osc. Plate 20%

49、 Bias Network (Wire Wound) 20% Bias Network (Wire Wound) 20% AM Conv. Grid 20% AM Conv. Cathode 20% AM Oonv. Plate 20% AM Osc. Grid 20% AM Osc. Plate 20% 1st IF Grid 20% 1st IF Cathode 20% 1st IF Decoupling 20% AVC Network 20% 20% Bias Network (Wire Wound) 20% 2nd IF Cathode (Wire Wound) 20% 2nd IF Decoupling 20% 2nd IF Screen 30% Diode Filter 20% De-emphas is 20% AVC Network 20% Ratio Det. Diode Load 20% 1st AF Grid 20% 1st AF Plate 20% Tone Compensation 20% Output Grid 20% Output Cathode (Wire Wound) Filter Filter (Wire Wound) Filt