Videodyne-10FM-10TV-12FM-12TV-Sams-69-15电路原理图.pdf
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1、PHOTO FACT* Folder VIDEODYNE MODELS 1OFM, 1OTV, 12FM, 12TV VOL. CONT. ON-OFF SW. TUNING CONTRAST-CONTROL CONT. TV. OFF-ON SW. VIDEODYNE MODEL 12FM TRADE NAME Vldeodyne, Models 10FM, 10TV, 12FM, 12TV MANUFACTURER Vldeodyne Inc., 33 Jefferson St., Stanford, Conn. TYPE SET Models 10TV, 12TV,-TV Recepti
2、on only, 10FM, 12FM-TV and FM reception TUBES Twenty-SIx POWER SUPPLY 110-120 Volts AC TUNING RANGE-10TV and 12TV-Channels 2 through 13 RATING: 1.76 Amp 117 Volts AC 10FM The voltages should be equal but of opposltive polarity. If not adjust A6 until they are equal. Move VTVM to pin 1 of V13. The VT
3、VM should read zero. If not, adjust A7 until should swing positively and negatively on either side of this setting. VTVM does read zero. (The VTVM SOUND IF ALIGNMENT USING FM SIGNAL GENERATOR AND OSCILLOSCOPE Connect synchronized sweep voltage from sweep generator to the horizontal Input of the osci
4、lloscope for horizontal deflection. DUMMY ANTENNA SWEEP GENERATOR COUPLING High side to un- grounded tube shield floating over mixer tube (V2). Low side to chassis . SWEEP GENERATOR FREQUENCY 21.9* 21. 6T (IMC Sweep) MARKER GENERATOR FREQUENCY 21.9MC* 21.6MCT CHANNEL Any CONNECT SCOPE Vert. Amp. to
5、Polnt Low side to chassis. Vert . Amp - to Point Low side to chassis. ADJUST of the oscilloscope for horizontal REMARKS Check curve to see that it is similar to Fig 3. If not, slightly retouch A3 thru A14 to place markers at proper points. FIG. IFIG. 2 PAGE 6 RadioFans.CN ALIGNMENT INSTRUCTIONS CCON
6、TJ OSCILLATOR ALIGNMENT The RF circuits of the Dumont Input tuner are very stable and will normally not require alignment In the field. The RF Amplifier circuits of the Sarkes Tarzlan tuner are also very stable and should not require adjustment. However, It may be necessary to adjust the oscillator
7、circuits In those models uslns the Tarzlan tuner. To adjust the oscillator circuits for this tuner follow the Instructions and chart below: (a). Replace the oscillator tube If removed for proceeding steps, (b). Do not attempt oscillator alignment unless sound IF channel has been accurately aligned.
8、DUMMY ANTENNA Two 125S carbon res. SIGNAL GENERATOR COUPLING Across a ntenna, terminals with 125S resistor In each generator lead. SIGNAL GENERATOR FREQUENCY 215.75MC 209.75MC 203.75MC 197.75MC 191.75MC 185.75MC 179.75MC 87.75MC 81.75MC 71.75MC 65.75IK 59.75M3 CHANNEL 13 12 11 10 9 8 7 6 5 4 3 2 CON
9、NECT VTVM Probe to Point Common to assls. ADJUST A101 A402 A403 A404 A405 A406 A407 A408 A409 A410 A411 A412 REMARKS Adjust for zero reading. A positive and negative reading should be obtained on either side of the correct setting. 14. FIG.3AFIG.3B 25 N m II _ m 5 HORIZ. HORIZ. HORIZ. FOCUS BRIGHTNE
10、SS HORIZ. VERT. VERT. VERT. DRIVE LIN. HOLD CENT. LIN. DRIVE HOLD CABINET-REAR VIEW PAGE 7 RadioFans.CN VOLTAGE AND RESISTANCE MEASUREMENTS CD VOLTAGE READINGS RESISTANCE READINGS Item V 1 V 2 V 3 V4 VS V 6 V7 V 8 V9 V 10 V 11 V 12 V 13 V14 V 15 V 16 V 17 vie V19 V20 V21 V22 V23 V24 V25 V26 Tub. 6J6
11、 6AK5 6J6 6AG5 6AG5 6AG5 6AQ5 6AL5 6AG7 6BA6 6BA6 6AU6 6AL5 12AU7 6AQ5 12AU7 12AU7 12AU7 12AU7 6AL5 6SN7GT 6BG6G 5V4G 1B3GT 5U4G 12TP4 Pin 1 85VDC -.5VDC 75VDC 0V 0V 0V 0V .1VDC 0V 0V 0V -.3VDC ov 22VDC OV 30VDC 165VDC OV 135 VDC 245VDO 5.5VDC -33VDC OV OV Pin 2 85VDC OV OV 6.5VDC 6.5VDC 6.5VDC 1.2V
12、DC OV OV OV OV OV -.3VDC OV 10VDO -.4VDC OV -95VDO -105VDC .6VDO 5.5VDC 90VDC OV 390VDC Pin 3 6.3VAC OV OV OV 6.3VAC 6.3VAC 6.3VAC 6.3VAC OV 6 .3VAC 6. 3 VAC 6. 3 VAC OV .8VDC 6.3VAC OV 6VDC OV .4VDC 17VDC 6.3VAC OV 6VDC OV Pin 4 OV 6.3VAC 6. 3V AC 6.3VAC OV OV OV OV .1VTJO OV OV OV 6,3VAC OV OV OV
13、OV OV OV OV -33VDC 325VDC 320VDC Pins OV 175VDC OV 235VDC 235VDC 235VDC 80VDC .3VDC 3.6VDC 105VDC 105VDC 50VDC OV OV 270 VDC OV OV OV OV 16VDO 215VDC -4.5VDC OV Pin 6 OV 50VDC S-1VDC 235VDC 235VDC 235VDC 125VDC OV 115VDC 105VDC 105VDC 50VDC OV 16VDC 240VDC 37VDC 270VDC 240VDC 245VDC OV OV 325VDC 320
14、VDC Pin 7 1.6VDC OV OV 6.5VDO 6.5VDC 6.5VDC 1.2VDC OV 6. 3 VAC 6.5VDC 1.4VDC OV -.3VDO -.4VDC OV OV OV -ybVLKJ -105VDO .6VDC -30VDC 6.3VAC 6.3VAC OV Pin 8 195VDC OV 1.8VDC 20VDC OV .4VDC 17VDC OV 180VDC 390VDC Pin 9 6. 3V AC 6.3VAC 6.3VAC 6. 3V AC 6 .3VAC # * DO NOT MEASURE OV 80VDC 350VDC .1VDC OV
15、PIN 10 270VDC 360VAC PIN 11 80VDC OV PIN 12 80VDC 360VACOV350VDC Do Not Measure. STAKEN WITH VACUUM TUBE VOLTMETER. Hem V 1 V 2 V 3 V4 V 5 V 6 V7 v e V9 V 10 vn V12 V13 V14 V15 V16 V17 V18 V 19 V20 V21 V22 V23 V24 V25 V26 Tuba 6J6 6AK5 6J6 6AG5 6AG5 6AG5 6AQ5 6AL5 6AG7 6BA6 6BA6 6AU6 6AL5 12AU7 6AQ5
16、 12AU7 12AU7 12ATJ7 12AU7 6AL5 6SN7GT 6BG6G 5V4G 1B3GT 5U4G 12TP4 Pin 1 T16K2 1 Meg. T16K2 10KS! lOKffi 4.7K2 .18 3.5K2 OS OS2 .12 47KS2 200KS! T270KS2 470K2 T125K2 T22K2 Ti:A m T9002 400K2 360K2 Inf. Inf. Inf. Inf. 60K2 102 Pin 2 T16K2 02 02 9K2 9KS! 9Kffl 1202 22KS 02 OS! OE 02 100K2 142 2702 470K
17、2 470K2 B Mil 1 Meg. 400KS! T470K2 Offl 45K2 Inf. 35KS! 1 Meg. Pin 3 .12 OS! OS! 02 .12 .12 .12 .12 OS! .12 .12 .12 02 10002 .12 02 10002 02 5K2 82 .12 02 1002 Inf. Inf. Inf. PIN 10 T310S! Pin 4 02 .12 .1SS .12 02 02 02 02 3.5K2 OS! OS! 02 .12 OS! 02 02 OS! OS! 02 02 360KS! T1.5K2 tlOOffl Inf. 2702
18、PIN 11 T60KS! Pin 5 OS! T6K2 OS! T11KS! tllKffl T14K2 T16K2 470K2 -2702 . T10K2 T10K2 T50KS! 02 02 T8502 OS! OS! 02 02 lOOKffi T100R2 1 Meg. Inf. Inf. Inf. PIN 12 60KS! 108 Pin 6 02 T330K2 12K2 T11KS! T11K2 T11K2 T11K2 02 T44KS! T10K2 tlOKS! T50K2 02 T300K2 t 10002 T125K2 T5K2 T100KS2 T900S! OS! 02
19、T68K2 T100S! Inf. 2902 Pin 7 2202 OS! 02 9K2 9K2 9KS! 1202 .12 .12 1202 1202 02 100K2 2.2 Mee. 500K2 82K2 470KSJ .4 neg 1.1 Meg 1 Meg. lOOKSi .12 .12 Inf. Inf. Inf. Pin 8 I5K2 02 2.2K2 TKffl 02 5K2 82 02 T11K2 45KSZ Inf. 35KS! Pin 9 .12 .12 .12 .12 .12 TOP CAP tllKB TUP CAP T10.5KS! T Measured From
20、Pin 8 Of V25. 1. DC Voltage measurements are at 20,000 ohms per volt; AC Voltage measured at 1,000 ohms. 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 v
21、olts for volt- age readings. 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 INPUTUNER-TOP VIEW INPUTUNER-BOTTOM VIEW PAGE 10 RadioFans.CN u g o CD CO CO CO 00 CO CO DO O m
22、 i XI m RadioFans.CN ISISTOR IDENTIFICATION PAGE 17 RadioFans.CN 1st SOUND I.F. 2nd SOUND I. F. LIMITED VI Vll VI 2|I 1st VIDEO I.F. 2nd VIDEO I.F. 3rd VIDEO I.F. 4th VIDEO I.F. DISCRIMINATOR VI3 A.F. AMP V14 AUDIO OUTPUT VI5 VIDEO AMPV9 D.C. RESTORER 1/2V8C AMP 1/2 VI6 | SYNC CLIPPER 1/2 V16 L.V. R
23、ECTV25 SYNC AMP 1/2 VI7 SYNC PHASE INV. 1/2 V17 PHASE DET V20R OSC V21 HOR. OUTPUT DAMPER H.V.RECT V22 V23 V24I1 9KV o m GJ VIDEODYNE BLOCK DIAGRAM A1SI A1OL WdOL 3NAaO3QIA RadioFans.CN PARTS LIST Al TUBES (SYLVANIA or Equivalent)CAPACH ITEM No. VI V2 V3 V4 V5 V6 V7 V8 V9 V10 Vll V12 V13 V14 V15 V16
24、 V17 VIS V19 V20 V21 V22 V23 V24 V25 V26 USE F Amp . Oscillator 1st Video IF Amp . 2nd Video IF Amp. 3rd Video IF Amp . 4th Video IF Amp . Video Det. -DC Rest. Video Amp. 1st Sound IF Amp . 2nd Sound IF Amp. Llmlter Disc. AF Amp. Audio Output Sync. Amp. -Sync, Clipper Sync. Amp. -Sync Phaee Inv. Ver
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