Truetone-2D1095-2D2052-Sams-134-11电路原理图.pdf

PHOTOFACT* Folder TRUETONE MODELS 2D1O95, 2D2O52 CONTRAST CONTROL VOLUME CONTROL ON-OFF SW BRIGHTNESS CONTROL VERT HOLD CONTROL HORIZ HOLD CHANNEL CONTROL TUNING TRUETONE MODEL 2D2052 TRADE NAME Truetone Models 2D1095, 2D2052 SUPPLIER Western Auto Supply Co., 2107 Grand Ave., Kansas City, Mo. TYPE SET Television Receiver TUBES Twenty Two POWER SUPPLY 110-120 Volts AC-60 Cycle TUNING RANGE-Channels 2 thru 13 RATING 2 Amp. ) 117 Volts AC INDEX Alignment Instructions .6,7 Horizontal Sweep Circuit Adjustment 10 Parts List And Desciption . 12 13,15 Photographs Cabinet - Rear View.10 Capacitor And Alignment Identification 4,9 Chassis - Top View 3 Photographs (Continued) RF Tuner Resistor And Inductor Identification Schematic Tube Placement Chart Voltage And Resistance Measurements . 7 . 11,14 2 5 . 8 o K 70 o c 33 o O a K O 01 K HOWARD W. SAMS V20-, JX2A AFC DISC AGC KEYING JBRSK | i J LV RECT. . - SOUND FAMB A T2O OUTPUT 1 4TH VIDEO IF AMR LI7 I 3RD VIDEO IF AMR LI6 J2ND VIDEO IF AMP. 1ST VIDEO IF AMR lAG 6J6j RF AMR CONV. BOTTOM VIEW TUBE PLACEMENT CHART PAGE 5 RadioFans.CN ALIGNMENT INSTRUCTIONS The end of the high voltage lead should be securely taped and kept away from the chassis. Do not remove the horizontal oscillator tube to kill the high voltage. Remove the converter tube (V2) from its socket and replace it with a 6J6 which has pin 2 removed. Connect the negative lead of a 3 volt battery to the unction of R20 and C7, connect the positive lead to chassis. DUMMY ANTENNA Direct Direct Direct Direct SWEEP GENERATOR COUPLING High side to ungrounded tube shield floating over dummy converter tube (V2). Low side to chassis. SWEEP GENERATOR FREQUENCY Not used 25MC (10MC SWP) MARKER GENERATOR FREQUENCY 26.4MC 23.4MC 25MC 23.0MC 26. 75MC CHANNEL Any CONNECT SCOPE Use VTVM. DC Probe to Point. Common to chassis. Vert. Amp. to Point . Low side to chassis. ADJUST Al, A2 A3.A4 A5 AS REMARKS Adjust for maximum deflection. Adjust for maximum deflection. Check for response curve similar to figure 1. If necessary retouch AS for proper response. 4. 5MC TRAP ADJUSTMENT DUMMY ANTENNA . 001MFD SWEEP GENERATOR COUPLING High side to pin 1 (cathode) of 6AL5 (V7). Low side to chassis. SWEEP GENERATOR FREQUENCY Not used MARKER GENERATOR FREQUENCY 4. SMC (4001. Mod.) CHANNEL Any CONNECT SCOPE Vert. Amp. to pin 1 (plate) of 12AT7 (V8). Low side to chassis. ADJUST A6 REMARKS Adjust for MINIMUM 4001. indication on scope. SOUND IF ALIGNMENT USING AM SIGNAL GENERATOR AND VTVM Connect two matched 100KI2 ( 1%) resistors in series from Point B to chassis. The junction of these two resistors is alignment Point D as shown on the schematic. DUMMY ANTENNA . 001MFD . 001MFD SIGNAL GENERATOR COUPLING High side to pin 1 (cathode) of 6AL5 (V7). Low side to chassis. SIGNAL GENERATOR FREQUENCY 4. SMC (Unmod. ) CHANNEL Any CONNECT VTVM DC Probe to Point. Common to chassis. DC Probe to Point. Common to PoinfQX SOUND IF ALIGNMENT USING FM SIGNAL GENERATOR ADJUST A7,A8 A9 REMARKS Adjust for maximum deflection. Adjust for zero reading. A positive and negative reading will be obtained on either side of the correct setting. AND OSCILLOSCOPE Use frequency modulated signal with 60 modulation and 450KC sweep. Use 120 tj sawtooth voltage in scope for horizontal deflection. DUMMY ANTENNA . 001MFD . 001MFD SWEEP GENERATOR COUPLING High side to pin 1 (cathode) of 6AL5 (V7). Low side to chassis. SWEEP GENERATOR FREQUENCY 4. SMC (450KC SWP) MARKER GENERATOR FREQUENCY 4. SMC CHANNEL Any CONNECT SCOPE . Vert. Amp. to Point. Low side to chassis. Vert. Amp. to Poinf Low side to chassis. ADJUST A7.A8 A9 REMARKS Disconnect stabilizer capacitor C3. Adjust for maximum amplitude and symmetry as per figure 2. Reconnect capacitor C3. Adjust A9 so 4. SMC occurs at center of crossover lines as per figure 3. SLIGHTLY retouch AS for maximum amplitude and straightness of crossover lines. TUNER ALIGNMENT Pre-set the adjusting screws as shown in figure 5. Turn the tuning shaft until the tuning core carriage is at the top of its stroke. Pre-set all tuning cores 1.6 inches from the top of the core to the coil mounting strip. Then turn the low band oscillator core (Lll) an additional 4 turns out of the coil. Remove the dummy converter tube and replace the original 6J6 in its socket. LOW BAND TUNER ALIGNMENT Turn the tuning control until the cores are at the extreme top of their stroke with the switch in low band position. DUMMY ANTENNA Two 12 OSJ carbon res. SWEEP GENERATOR COUPLING Across antenna termin- als with 120n in each lead. SWEEP GENERATOR FREQUENCY 8 SMC (10MC SWP) 63MC (10MC SWP) 69MC (10MC SWP) 79MC (10MC SWP) 57MC (10MC SWP) MARKER GENERATOR FREQUENCY 83. 25MC 87.25MC 61. 2 SMC 65. 75MC 67.25MC 71. 75MC 77. 25MC 81. 75MC 55. 25MC 59. 75MC CHANNEL 6 3 4 5 2 CONNECT SCOPE -t. Amp. to Point Low side to ssis. ADJUST A10,A11, A12 A13 All, A12 REMARKS Adjust for maximum amplitude of response with symmetrical peaks. If A-ll shows insufficient range turn L8 core slightly into the coil. Adjust to place video marker at 50% on response curve as per figure 4. If necessary repeat step 8. Adjust tuning control until video marker appears at 50% on response curve. Adjust All and A12 for compromise which will give best overall response across the low band channels. FIG.IFIG. 2FIG. 3 FIG.4 PAGE 6 RadioFans.CN ALIGNMENT INSTRUCTIONS CCONTJ HIGH BAND TUNER ALIGNMENT | Turn the tuning control until the cores are at the extreme top of their stroke with the switch to high band position. DUMMY ANTENNA Two 12 OR carbon res. SWEEP GENERATOR COUPLING Across antenna termin- als with 120! in each lead. SWEEP GENERATOR FREQUENCY 213MC (10MC SWP) 207MC (10MC SWP) 261MC (10MC SWP) 195MC (10MC SWP) 189MC (10MC SWP 183MC (10MC SWP) 177MC (10MC SWP) MARKER GENERATOR FREQUENCY 211.25MC 215.75MC 205. 25MC 209. 75MC 199.25MC 203. 75MC 193.25MC 197.75MC 187.25MC 191.75MC 181.25MC 185.75MC 175.25MC 179.75MC CHANNEL 13 12 11 10 9 8 7 CONNECT SCOPE . Amp. to Point Low side to sis. ADJUST A14.A15, A16 A17 A15.A16 REMARKS Adjust for maximum amplitude of response with symmetrical peaks. Adjust to place video marker at 50% on response curve as per figure 4. If necessary repeat step 11. Adjust tuning control to place video marker at 50% on response curve. Adjust A15 and A16 for compromise which will give best overall response across the high band channels. r The dimensions shown are opprox from the shoulder of screw head to mounting base Hi R O o (O o JO c O K) O 01 to RF TUNER-BOTTOM VIEW PAGE 7 RadioFans.CN VOLTAGE AND RESISTANCE MEASUREMENTS VOLTAGE READINGS RESISTANCE READINGS Item V 1 V 2 V 3 V 4 V 5 V 6 V7 V8 V9 V 10 V l l V 12 V 13 V 14 V 15 V 16 V 17 V18 V19 V20 V 2 1 V22 Tub: 6AG5 616 6AU6 6AU6 6AU6 6AU6 6AL5 12AT7 6AU6 6AU6 6T8 6AV6 6K6GT 6SN7GT 6SN7GT 6AL5 6SN7GT 6BG6G 6W4GT 1X2A 5U4G 16RP4 Pin 1 ov 130VDC OV OV OV OV OV 140VDC 125VDC OV -.2VDC Pin 2 .6VDC 80VDC OV OV OV OV OV .5VDC 155VDC OV -.4VDC Pin 3 6.3VAC 6. 3VAC OV OV OV OV S.7VDC 40VDC 155VDC OV -.2VDC Pin 4 OV OV 6. 3VAC 6.3VAC 6. 3 VAC 6. 3VAC OV 6. 3VAC t 155VDC 6. 3VAC OV Pin 5 135VDC I-1VDC 130VDC 130VDC 130VDC 285VDC 1. 4VDC 6. 3VAC , 115VDC J. 3VAC Pin 6 130VDC OV 130VDC 130VDC 130VDC 135VDC OV 125VDC 320VDC U5VDC OV Pin 7 .6VDC 2.8VDC 1VDC 1VDC 1VDC 1.2VDC -3.8VDC -.4VDC 155VDC IVDC OV Pin 8 OV -.4VDC Pin 9 OV 80VDC NOT USED IN ALL MODELS OV -1.5VDC -2.6VDC -7.3VDC 2.6VDC -4VDC -5.6VDC -.2VDC 440VDC OV 70VDC 105VDC -.3VDC 115VDC OV * 230VDC OV OV 6. 3 VAC 12VDC OV 440VDC 240VDC -1. 6VDC OV OV -.1VDC -.4VDC , OV 35VDC 430VDC 2.6VDC 290VDC -18VDC 320VDC DO NOT MEASURE OV OV 340VDC 1. 2VDC t* PIN 10 430VDC 340VAC A PIN U 95VDC OV OV OV 25VDC 15VDC OV 12VDC -18VDC . 6.3VAC 6.3VAC 6.3VAC -.2VDC 6. 3VAC 6. 3VAC 155VDC 18VDC OV OV OV 270VDC 155VDC TOP CAP 340VAC PIN 12 6. 3VAC 320VDC340VDC Item V 1 V 2 V 3 V 4 V 5 V 6 V7 V 8 V9 V 10 V 1 1 V 12 V13 V 14 V 15 V 16 V 17 V I S V 19 V20 V21 V22 Tube 6AG5 6J6 6AU6 6AU6 6AU6 6AU6 6AL5 12AT7 6AU6 6AU6 6T8 6AV6 6K6GT 6SN7GT 6SN7GT 6AL5 6SN7GT 6BG6G 6W4GT 1X2A 5U4G 16RP4 Pin 1 43KS2 t3.3Kn 90Kn 90KS2 90Kn 2. 3KS3 .90 t5.8Kn T20KS2 3. in Inf. Pin 2 sen t7. 9Kn on on on on on 2. 2 Mee. t5. 8Kn on 22Kn Pin 3 .in .in on on on on 1.212 5.1KO ts.SKn on Inf. Pin 4 on on .in .in .in .in on .in tS.SKn .in on Pin 5 I2.3K52 lOKn t3.3Kn ts.SKn t3.3Kn tS.TKn IMeg. .in 90K t4. 5Kn .in Pin 6 ts.SKn lOKn ts.SKn t3.3K!J tS.SKO t68Kn on t9K!i t70n t4. 5Kn on Pin 7 esn 22(K 82n 82n 82n i2on 3.9Kn 3.9Kn 15.8Kn I2on on Pin 8 on 10 Mee. Pin 9 on t220Kn NOT USED IN ALL MODELS. Inf. 2. 2 Mee. 1. 5 Meg. 1. 6 Me*. 2. 2 Mee. lOOKn 150Kn 4. 5 Mee. #8n Inf. Inf. on on t47Kn 11.1 Mee. isoKn t220K on 90Kn Inf. 35KO 1 Meg. T3.3Kn on on .m i.5xn on 400Kn Inf. 470Kf! PIN 10 *iKn t2.8Kn 4. 7 Mee. IMee. on 4.4 Meg. 340KH 550Kn Inf. 3 on 470Kn tsoKn #soon 2. 2 Mee. f5.8Kn 470Kn t7on Inf. 470Kn PIN 11 lOOKn LSOKSi Inf. on 6Kn utn on i. 5Kn 470Kn 90Kn Inf. son PIN 12 .in .in .in .in 4. 5 Mee. .in .in tS.BKn Inf. t7on 68 On on on on t4.8Kn ts.SKn Inf. 35Kn TOP CAP *eon TOP CAP 166 On TAKEN WITH VACUUM TUBE VOLTMETER * DO NOT MEASURE A 117VAC MEASURED ACROSS PINS 3 AND 5 OF V21 t 6.3VAC MEASURED ACROSS FILAMENTS PHONO-TV SWITCH IN TV POSITION | MEASURED FROM PIN 8 OF V21 # MEASURED FROM PIN 3 OF V19 PHONO-TV SWITCH IN TV POSITION 1. DC Voltage measurements are at 20,000 4. Line voltage maintained all! 7 volts for volt- ohms per volt; AC Voltage measured at 1,000 age readjngs 2. Pin numbers are counted in a clockwise direc- tion on bottom of socket. 3. Measured values ore 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 CENTERINGBUILT-IN ANTENNA ADJ. FOCUS COARSE HORIZONTAL HOLD ADJ, HORIZONTAL SIZE VERTICAL LINEARITY CONTROL VERTICAL SIZE CONTROL PHONO SWITCH HORIZONTAL LINEARITY CABINET-REAR VIEW HORIZONTAL SWEEP CIRCUIT ADJUSTMENTS Turn the set on and tune in a TV station, preferably a test pattern. Turn the horizontal hold control to the mid-position of its range. Adjust the horizontal frequency slug (Bl) until the picture synchronizes horizontally. Adjust the horizontal drive trimmer (B2) counter clockwise until vertical white lines appear in the picture, and then clockwise 1/2 turn farther than required to just remove the white lines. Adjust the horizontal size slug until the picture fills the tube horizontally. Adjust the horizontal linearity slug until the picture is symmetrical from left to right. PAGE TO RadioFans.CN PARTS LIST AND DESCRIPTIONS TUBES (SYLVANIA or Equivalent) ITEM No. VI V2 V3 V4 V5 V6 V7 V8 V9 V10 V11A B V12 V13 V14 V15 vie vn V18 V19 V20A B V21 V22 USE RF Amp. Converter 1st Video IF Amp. 2nd Video IF Amp. 3rd Video IF Amp. 4th Video IF Amp. Video Del. -DC Restorer Video Amp. AGC Keying Sound IF Amp. Ratio Det.-AF Amp Ratio Det. AF Amp. Audio Output Sync. Sep.- Sync. Amplifier Vert. Osc. -Vert. Amp. AFC Discr. Horiz. Mult. Horiz. Output Damper H.V. Rectifier H.V. Rectifier L.V. Rectifier Picture Tube REPLACEMENT DATA TRUETONE PART No. 6AG5 6J6 6AU6 6AU6 6AU6 6AU6 6AL5 12AT7 6AU6 6AU6 6T8 6AL5 6AV6 6K6GT 6SN7GT 6SN7GT 6AL5 6SN7GT 6BG6G 6W4GT 1X2A 1X2 5U4G 16RP4 STANDARD REPLACEMENT 6AG5 6J6 6AU6 6AU6 6AU6 6AU6 6AL5 12AT7 6AU6 6AU6 6T8 6AL5 6AV6 6K6GT 6SN7GT 6SN7GT 6AL5 6SN7GT 6BG6G 6W4GT 1X2A 1X2 5U4G 16RP4 RMA BASE TYPE 7BD 7BF 7BK 7BK 7BK 7BK 6BT 9A 7BK 7BK 9E 6BT 7BT 7S 8BD 8BD 6BT 8BD 5BT 4CG 7CB 7CB 5T 12D NOTES Not used in models using V11A. CAPACITORS Capacity values given in the rating column are in mfd. for Electrolytic and Paper Capacitors, and in mrnfd. for Mica and Ceramic Capacitors. ITEM No. CIA B C C2A B C C3 C4 C5 C6 C7 C8 C9 CIO CU C12 C13 C14 CIS C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 RATING CAP. 30 60 10 30 30 125 10 10 8 8 5 10 220 5000 1000 .5 15 1000 4 1000 1.5 2.2 2.5 51 2.2 51 220 1000 7 7 5000 5000 100 1000 .1 1000 1000 47 1000 1000 1000 1000 47 1000 1000 1000 47 1000 1000 1000 1000 5 1000 100 100 .01 22 .1 3.3 .004 5000 470 2000 VOLT 450 4CO 450 450 450 25 50 50 450 450 50 150 500 200 500 500 500 500 500 400 400 400 500 REPLACEMENT DATA TRUETONE PART No. A-8C-17845 A-8C-18487 f1 A-8C-17183 A-8C-17183 A-8C-13453 A-8C-13453 B-8C-11751 A-8C-11495 C-8G-16045 A-8G-13962 C-8G-13201 A-8G-12495-7 C-8G-17305 C-8G-13201 C-8G-11893 C-8G-13201 A-8G-12495-4 A-8G-12495-4 C-8G-15737 A-8G-11891 A-8G-12495-4 A-8G-11891 C-8G-16045 C-8G-13201 C-8G-15224 C-8G-11790 A-8G-13962 A-8G-13962 C-8F3-8 C-8G-13201 C-8D-17259 C-8G-13201 C-8G-13201 C-8F3-109 C-8G-13201 C-8G-13201 C-8G-13201 C-8G-13201 C-8F3-109 C-86-13201 C-86-13201 C-86-13201 C-8F3-109 C-8G-13201 C-8G-13201 C-8G-13201 C-8G-13201 C-8G-12166 C-8G-13201 C-8F3-111 C-8F3-111 C-8D-17270 C-8D-10983 A-8G-12495-3 C-8D-17958 A-8G-13962 C-8F3-121 C-8G-16049 AEROVOX PART No. AFH3666J AF66J4A PRS25/100 PRS50/10 PRS50/10 PRS450/8 PRS450/8 PRS150/4 PRS150/12 SI220 BPD-005 SI1000 SI1000 S11000 SI1.5NPO SI50N750 SI50 SI220 SI1000 BPD-005 BPD-005 1468-0001 SI1000 P288-1 SUOOO SI1000 1468-00005 SIIOOO SI1000 SUOOO SUOOO 1468-00005 SIIOOO SIIOOO SIIOOO 1468-00005 SIIOOO SIIOOO SUOOO SUOOO SI5NPO SIIOOO 1469-0001 1469-0001 P488-01 SI22 P488-1 SI3.3NPO P688-004 BPD-005 1468-0005 SI2000 CENTRALAB PART No. D6-221 DD-502 D6-102 TCZ-.5 TCZ-15 D6-102 D6-102 TCZ-1.5 TCZ-2.2 TCN-51 TCZ-2.2 TCN-51 D6-221 D6-102 TCZ-6.8 DD-502 DD-502 D6-101 D6-102 DF-104 D6-102 D6-102 D6-470 D6-102 D6-102 D6-102 D6-102 D6-470 D6-102 D6-102 D6-102 D6-470 D6-102 D6-102 D6-102 D6-102 TCZ-4.7 D6-102 TCZ-100 TCZ-100 D6-103 D6-220 DF-104 TCZ-3.3 D6-402 DD-502 D6-471 D6-2Q2 CORNEU- DUBILIER PART No. UPT36145 UPT409 BR105 BH105 BR845A BR845A BH105 BR1015 1D5D5 1D5D5 5W5T1 1W5D1 PTE4P1 1W5D1 1W5D1 5W5Q5 1W5D1 1W5D1 1W5D1 1W5D1 5W5Q5 1W5D1 1W5D1 1W5D1 5W5Q5 1W5D1 1W5D1 1W5D1 1W5D1 5N5V5 1W5D1 5R5T1 5R5T1 PTE4S1 5W5Q25 PTE4P1 PTE6D4 1D5D5 5W5T5 1W5D2 ERIE PART No. GP2K-220 811-005 GP2L-001 NPOK-15 GP2L-001 NPOK-4 GP2L-001 NPOK-1.5 N750L-51 N750L-51 GP2K-220 GP2L-001 N750K-7 NPOK-6.8 811-005 811-005 GP1K-100 GP2L-001 GP2L-001 GP2L-001 GP1K-47 GP2L-001 GP2L-001 GP2L-001 GP2L-001 GP1K-47 GP2L-001 GP2L-001 GP2L-001 GP1K-47 GP2L-001 GP2L-001 GP2L-001 GP2L-001 NPOK-5 GP2L-001 NPOM-100 NPOM-100 821-01 GP1K-22 NPOK-3.3 GP2M-004 811-005 GP2K-470 GP2M-002 SPRAGUE PART No. TVL-3790 TVL-3706 TVA-1304 TVA-1304 TVA-1704 TVA-1704 TVA-1303 TVA-1406 19C13 29C1 19C1 19C5 19C1 19C1 19C9 19C13 19C1 29C1 29C1 19C11 19C1 2TM-P1 19C1 19C1 1FM-45 19C1 I9C1 19C1 19C1 1FM-45 19C1 19C1 19C1 1FM-45 19C1 19C1 19C1 19C1 MS-55 19C1 MS-31 MS-31 4TM-S1 19C23 4TM-P1 6TM-D4 29C1 1FM-35 29C2 IDENTIFICATION CODES AND INSTALLATION NOTES Filter Filter Decoupling Filter Filter Vert. Output Cath. Stabilizing Cap. Output Cath . Bypass Decoupling Decoupling AGC Filter Decoupling RF Coupling RF Amp. Cathode RF Amp. Sc