Admiral-24D1-Sams-103-2电路原理图.pdf

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1、PHOTOFACT* Folder ADMIRAL CHASSIS 24D1, 24E1, 24F1, 24G1, 24H1 VOLUME CONTROL ON-OFF SWITCH VERT HOLD BRIGHTNESS VOLUME CONTROL ON- OFF SWITCH ADMIRAL MODEL 36X36 TRADE NAMEAdmiralMODEL 26R25, 26R26, 26R35, 26R36, 26R37 26X35, 26X36, 26X37 26X45, 26X46 29X16, 29X17 36X36, 36X37 39X16, 39X16A, 39X17,

2、 39X17A TV CHASSIS 24H1 24D1 24H1 24F1 24E1 24G1 RADIO CHASSIS 5B2 5B2 MANUFACTURER TYPE SET TUBES POWER SUPPLY RATING TUNING RANGES Admiral Corp., 201 E. North Water St., Chicago 11, Illinois TV-AM-FM-Phono Combination Receiver (Some models TV only) Twenty Four (TV only models) Twenty Nine (Combina

3、tion models) 110-120 Volts AC-60 Cycle 2.1 Amp. at 117 Volts AC (TV Operation) TV Channels 2 thru 13, FM 88-108MC, AM 540-1620KC INDEX Alignment Instructions - - - - - Disassembly Instructions - Horiz. Sweep Circuit Adjustment - Parts List and Description - Photographs Cabinet-Rear View - - Capacito

4、r Identification 6,7 13 13 - 14,15,16 - 13 - 11,18 Photographs (continued) RF Tuner - - - - - Resistor Identification - 10 12,17 Trans., Inductor and Alignment Identification- - - - - 4,9 Schematic - - - - - - - 2 Tube Placement Chart - 5 Chassis-Top View - - - . . 3,7 Voltage and Resistance Measure

5、ments - FOR SERVICE INFORMATION ON RADIO CHASSIS 5B2 SEE PHOTOFACT SET #100 FOLDER #1 RECORD CHANGER UNIT-ADMIRAL RC-500 HOWARD W. SAMS 6J6l _ RF AMP CONV. TUBE PLACEMENT CHART PAGE 5 RadioFans.CN ALIGNMENT INSTRUCTIONS The high voltage shock hazard may be eliminated by removing the horizontal oscil

6、lator tube (V18) from its socket. VIDEO IF ALIGNMENT Remove the converter tube (V2) and replace it with a 6J6 which has pin 1 removed. Connect the negative lead of a 4. 5 volt battery to the junction of R30 and R31, connect the positive lead to chassis. Turn the contrast control to the mid-position

7、of its range. DUMMY ANTENNA Direct Direct Direct Direct Direct SIGNAL GENERATOR COUPLING High side to ungrounded tube shield floating over dummy converter tube (V2). Low side to chassis. SIGNAL GENERATOR FREQUENCY 21. 25MC (Unmod. ) 22.3MC 22MC 25. SMC 23. SMC CHANNEL Any CONNECT VTVM DC Probe to Po

8、int. Common to chassis. ADJUST Al, A2 A3 A4 A5 A6 REMARKS Adjust for MINIMUM deflection. Adjust for maximum deflection. OVERALL VIDEO IF RESPONSE CHECK Connect the synchronized sweep voltage from the signal generator to the horizontal input of the oscilloscope for horizontal deflection. DUMMY ANTENN

9、A Direct DUMMY ANTENNA Direct Direct SWEEP GENERATOR COUPLING High side to ungrounded tube shield floating over dummy converter tube (V2). Low side to chassis. SIGNAL GENERATOR COUPLING High side to ungrounded tube shield floating over dummy converter tube (V2). Low side to chassis. SWEEP GENERATOR

10、FREQUENCY 24MC (10MC SWP) MARKER GENERATO FREQUENCY 21. 2 SMC 25.75MC CHANNEL Any CONNECT SCOPE t. Amp. to Point Low side to ssis. ADJUSTREMARKS Check for response curve similar to figure 1. If necessary retouch A3 thru A6 for optimum response. SOUND IF ALIGNMENT USING AM SIGNAL GENERATOR AND VTVM S

11、IGNAL GENERATOR FREQUENCY 21. 25MC (Unmod.) CHANNEL Any CONNECT VTVM DC Probe to PoinKj. Common to chassis. DC Probe to Point. Common to PointX ADJUST A7, A8, A9 A10 REMARKS Adjust for maximum deflection. Adjust for zero reading. A positive and negative reading will be obtained on either side of the

12、 correct setting. SOUND IF ALIGNMENT USING FM SIGNAL GENERATOR AND OSCILLOSCOPE Use frequency modulated signal with 60 t modulation and 450KC sweep. Use 120 1 sawtooth voltage in scope for horizontal deflection. DUMMY ANTENNA Direct Direct DUMMY ANTENNA . 01MFD SWEEP GENERATOR COUPLING High side to

13、ungrounded tube shield floating over dummy converter tube (V2). Low side to chassis. SIGNAL GENERATOR COUPLING High side to Point A . Low side to chassis. SWEEP GENERATOR FREQUENCY 21.25MC (450KC Sweep) MARKER GENERATOR FREQUENCY 21. 2 SMC CHANNEL Any CONNECT SCOPE Vert. Amp. to Point qy. Low side t

14、o chassis. t. Amp. to Point Low side to ssis. ADJUST A7, A8, A9 A10 REMARKS Disconnect stabilizer capacitor C6. Adjust for maximum amplitude and symmetry as per figure 2. Reconnect capacitor C6. Adjust A10 so 21. 25MC occurs at center of crossover lines as per figure 3. Slightly retouch A9 for maxim

15、um amplitude and straightness of crossover lines. 4. 5MC TRAP ADJUSTMENT SIGNAL GENERATOR FREQUENCY 4.5MC (Unmod.) CHANNEL Any CONNECT VTVM RF Probe to pin 8 plate) of 6AC7 (V7). Common to chassis. ADJUST All REMARKS Adjust for MINIMUM deflection. OSCILLATOR ALIGNMENT Remove the dummy converter tube

16、 and replace the original 6J6 in its socket. Complete oscillator alignment may not be necessary. If the oscillator seems to be off frequency approximately the same amount for a majority of the channels it may be possible to correct them in one step using A12. It should be noted that this is an all c

17、hannel oscillator circuit adjustment and should not be adjusted for any individual channel, ijf adjustment of A12 will not bring all channels well within the range of the fine tuning control, it will be necessary to adjust the individual channel oscillator adjustment for each channel that if off fre

18、quency. The individual channel oscillator adjustments are reached through a hole just to the right of the channel switch shaft. The correct adjustment screw is accessible through this hole as the channel switch is turned to each channel. The sweep generator output lead should be terminated with its

19、characteristic impedance, usually 50 ohms. DUMMY ANTENNA carbon res. SIGNAL GENERATOR COUPLING Across antenna termin- als with 1201! in each lead. SIGNAL GENERATOR FREQUENCY 215.75MC (Unniod.) 209. 7 SMC 203. 75MC 197. 75MC 191. 75MC 185. 75MC 179.75MC 87.75MC 81. 75MC 71.75MC 65.75MC 59. 75MC CHANN

20、EL 13 12 11 10 9 8 7 6 5 4 3 2 CONNECT VTVM DC Probe to Common to PointSjX ADJUST A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 REMARKS Adjust for zero reading. A positive and negative reading will be obtained on either side of the correct setting. PAGE 6 RadioFans.CN ALIGNMENT INSTRUCTIONS CCONTJ

21、 RF AND MIXER ALIGNMENT The sweep generator output lead should be terminated with its characteristic impedance, usually 50 ohms. DUMMY ANTENNA Two 120J1 carbon res. SWEEP GENERATOR COUPLING Across antenna termin- als with 120fi in each lead. SWEEP GENERATOR FREQUENCY 207MC (10MC SWP) 213MC (10MC SWP

22、) 201MC (10MC SWP) 195MC (10MC SWP) 189MC (10MC SWP) 183MC (10MC SWP) 177MC (10MC SWP) 8 SMC (10MC SWP) 79 MC (10MC SWP) 69MC (10MC SWP) 63MC (10MC SWP) 57MC (10MC SWP) MARKER GENERATOR FREQUENCY 205.25MC 209.75MC 211. 25MC 215.75MC 199.25MC 203.75MC 195.25MC 197.75MC 187.25MC 191. 75MC 181.25MC 187

23、.75MC 175.25 179.75MC 83.25MC 87. 75MC 77.25MC 81. 75MC C7.25MC 71.75MC 61.25MC 65. 7 SMC 55. 25MC 59.75MC CHANNEL 12 13 11 10 9 8 7 6 5 4 3 2 CONNECT SCOPE Vert. Amp. thru 10KH to Point. Low side to chassis. ADJUST A25, A26, A27 REMARKS Adjust for response curve similar to figure 4 with marker abov

24、e 80%. Check all channels for response curve similar to figure 4. If markers fall below 70 on any channel, make slight adjustment of A25, A26 and A27 with channel selector set for that channel. Recheck all channels to see that they have not been seriously effected. v* rO Ik FIG.FIG. 2FIG.3F.IG.4 Ki

25、2 I CHASSIS-TOP VIEW PAGE 7 RadioFans.CN o O m 00 VOLTAGE AND RESISTANCE MEASUREMENTS VOLTAGE READINGS RESISTANCE READINGS 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 V17 V 1 8 V 19 V20 V21 V22 V23 V24 Tube 6AG5 6J6 6AU6 6AU6 6AG5 6AL5 6AC7 6AU6 6AU6 6AU6 6AL5 6SQ7 6V

26、6GT 12AU7 6SN7GT 6S4 6AL5 6SN7GT 6CD6G 6W4GT 1B3GT 5U4G 6AX5 16GP4 Pin 1 -.5VDC 160VDC - . 4 VDC -.3VDC 0V. 0V. 0V. -M& 1-90VDC 0V. -.4VDC .4 VDC 0V. 0V. 370VDC -15VDC Inf. 5.7VDC .2 VDC 14VDC 400 VDC Pin 2 0V. 160VDC 0V. 0V. 1.3VDC -18VDC 0V. -Ma -*-? T-75VDC 0V. 0V. .4 VDC -.5VDC 6.3VAC 140VDC -32

27、0VDC 100VDC 20VDC -6VDC 320VDC 6. 3 VAC 0V. Pin 3 6. 3 VAC 6. 3 VAC 6. 3 VAC 6. 3 VAC 6 . 3 VAC 6. 3 VAC 0V. 6.3VAC 6.3VAC 6.3VAC 4 . 1VAC 0V. 235VDC 160VDC 0V. 0V. 0V. 14VDC 14VDC 440VDC Pin 4 0V. 0V. Lov. ov. ov. ov. -.5VDC OV. OV. OV. OV. ov. 250VDC 6. 3 VAC - K -18VDC 6 . 3 VAC 6. 3 VAC -3.5VDC

28、5VAC 440VDC Pin 5 120VDC -2.5VDC 145VDC 145VDC 14 5 VDC OV. OV. - 3 at* T-230VDC 165VDC 240VDC .9VDC OV. OV. 6. 3 VAC 380VDC OV. OV. 130VDC -3.5VDC 350VDC Pin 6 120VDC -6.1VDC 145VDC 145VDC 145VDC OV. r 43VDC J-TE4P1 TE6SI ERIE PART No. GP2L-001 811-01 811-005 GP2K-330 GP1K-100 GP2K-330 GP2K-270 811

29、-01 SPRAGUE PART No. 1FM-21 TM-I1 TM-25 TM-15 MS-24 MS-33 1FM-31 MS-33 1FM-325 TM-15 TM-15 TM-12 TC-2 TM-1 TM-11 IDENTIFICATION CODES AND INSTALLATION NOTES Hor. Sync. Coupling Integrator Net. AFC Filter AFC Filter Fixed Trimmer Hor. MV Feedback Hor. MC Feedback Hor. Discharge Hor. Sweep Coupling Ho

30、r . Output Screen Byp. Damper Filter Damper Filter Damper Filter Hor. Sweep Coup, f HV Filter AGC Keying Screen Byp. on. MFGRS Part No. 64B8-11. n. MFGRS Part No. 64B9-24. tS Part No. 65B18-5. DLS CENTRA LAB PART No. ) SBB-616-S J AN-40 AK-4 AN -69 AK-4 AN-26 AK-4 AN-13 AK-1 AN-83 AK-1 INSTALLATION

31、NOTES Contrast control -front Volume control-rear Attach per instructions in Concentrikit. Attach per instructions in Concentrikit. Brightness control Attach to R2A per instructions Vert, hold control Attach to R3A per instructions Horiz. hold control Attach to R4A per instructions Focus control-Wir

32、e Wound Vert, linearity control Attach to R6A per instructions Height control Attach to R7A per instructions ORS IDENTIFICATION CODES L RESISTORS ARE t 10% UNLESS OTHERWISE STATED. nt. Coil Shunt GC Network *F Plate Coil Shunt *F Decoupling onv. Grid onv. Grid Oonv. Plate Decoupling Dsc. Grid Dsc. P

33、late st Video IF Grid st Video IF Cathode st Video IF Decoupling Irid Video IF Transformer Shunt VGC Network VGC Network Ind Video IF Cathode !nd Video IF Decoupling Ird Video IF Transformer Shunt Ird Video IF Cathode Ird Video IF Decoupling /ideo Det. Diode Load /oltage Divider VGC Network VGC Netw

34、ork VGC Network VGC Network fideo Amp. Plate iGC Keying Screen iGC Keying Grid oltage Divider foltage Divider roltage Divider roltage Divider oltage Divider st Sound IF Cathode st Sound IF Decoupling nd Sound IF Grid nd Sound IF Screen nd Sound IF Decoupling oltage Divider lalancing latio Det. Filam

35、ent - Wire Wound :atio Det. Diode Load latio Det. Diode Load lalanoing e-emphasis .F Amp. Grid ,F Amp. Plate-See Note 1 .F Amp. Plate Decoupling .F Amp. Screen-See Note 2 utput Grid lutput Cathode one Compensation oltage Divider Sync. Sep. Plate Sync. Clipper Grid Sync. Clipper Plate Sync. Phase Inv

36、. Grid 3ync. Phase Inv. Plate Sync. Phase Inv. Cathode RESISTORS CCONTO ITEM No. a ea R69 R70 R71 R72 R73 H74 R75 B76 R77 R78 R79 R80 R81 R82 R83 R84 P85 R86 R87 H88 H89 R90 R91 R92 H93 R94 R95 R96A B C R97 R98 R99 RATING RESISTANCE 22KS2 8200S2 8200S! 1.2 Meg. 270KS! 6.8 Meg. lOOKf! 8200S2 IMeg. 10

37、00SJ 2200S! lOOKn 5% 100KS! 5% 4. 7 Meg. 470KS2 15KB isoon 5600B 82KSJ 220KS2 12KS! 8200B 68S2 470KB . 150C! 56KS1 27KB 470KB 20KS2 lOOOSi 4500S! 22KB loooo 270KB WAns i 1 2 i i i 2 I a kI 2| I 4 A 2 I 2 1 2 1 5 ) 2 5 2 5 1 REPLACEMENT DATA ADMIRAL PART No. 60B8-223 60B8-822 60B8-822 60B8-125 60B8-2

38、74 60B8-685 60B8-104 60B8-822 60B8-I05 60B14-102 60B20-222 60B7-104 60B7-104 60B8-475 60B8-474 60B8-153 60B8-152 60B8-562 60B8-823 60B8-224 60B20-123 60B8-822 60B8-680 60B8-474 60B20-151 60B14-563 60B20-273 60B14-474 61B13-1 60B20-223 6IA3-13 60B8-274 IRC PART No. BTS-22K BTS-8200 BTS-8200 BTS-1.2 M

39、eg. BTS-270K BTS-6.8 Meg. BTS-100K BTS-B200 BTS-1 Meg. BTA-1000 BT-2-2200 BTS-100K-5% BTS-100K-5% BTS-4. 7 Meg. BTS-470K BT-2-15K BTS-1500 BTS-5600 BTS-82K BTS-220K BT-2-12K BTS-8200 BTS-470K BW-2-150 BTA-56K BT-2-27K BT-2-22K AB-1000 BTS-270K IDENTIFICATION CODES Integrator Network Integrator Netwo

40、rk Integrator Network Vert. Osc. Grid Vert. Osc. Plate-See Note 5 Voltage Divider Voltage Divider Vert. Peaking Vert. Output Grid Vert. Output Cathode Decoupling Horiz. Sync. Disc. Load Horiz. Sync. Disc. Load Horiz. Sync. Disc. Load Horiz. AFC Filter Network Feedback Network Horiz. Osc. Cathode-See

41、 Note 4 Horiz. Osc. Plate Horiz. Discharge Grid Horiz. Discharge Plate Decoupling Horiz. Peaking Parasitic Supp. Horiz. Output Grid-See Note 5 Horiz. Output Cathode Horiz. Output Screen Horiz. Output Screen HV Filter Bleeder Network-Wire Wound Focus Control Shunt-Wire Wound Focus Coil Shunt-Wire Wou

42、nd Bleeder Network-See Note 3 Filter -Wire Wound Equalizing Note I. Late model productions use 150KS1 resistor in this application. Note 2. Used only in late model productions. Note 3. Not used in all models. Note 4. Some models use 1600J2 resistor in this application. Note 5. Models using rectangul

43、ar picture tube use 1 meg resistor in this application. TRANSFORMER (POWER) ITEM No. TLA B RATING PRI. 117VAC S 2.1A SEC. 1 640VCT . 180ADC Tap 420VCT . 070ADC SEC. 2 5VAC 3A SEC. 3 6. 3VAC 2.3A SEC. 4 6. 3VAC 9.6A REPLACEMENT DATA ADMIRAL PART No. 80B24-1 (D 80C25-1 STANCOR PART No. MERIT PART No.

44、P-3067 (TJ) CHICAGO PART No. n x 2 N IO (Q) Add series resistor to reduce plate voltage of high voltage secondary tap. S Used in sets which use 6SQ7 audio amplifier. Used in sets which use 6AU6 audio amplifier. TRANSFORMER (SWEEP CIRCUITS) ITEM No. T2 T3 T4 T5A1 Bl A2 T6 RATING DC RESISTANCE PRI. 21

45、0S! 285S2 Tap 44R 1400S2 Tap 13. 5(1 13Q 46fi 19 50SJ SEC. 1100S! 5il Tap 2.6SJ SEC. 2 20 SEC. 3 on REPLACEMENT DATA ADMIRAL PART No. 79A18-2 79C30-1 79B29 A3178 A3197 69C117-1 STANCOR PART No. A-8111 (3) MERIT PART No. A-3000 A-3037 MD-70F CHICAGO PART No. TBO-3 (J) NOTES Vert. Block Osc. Trans Hor

46、. Output Trans. Vert. Output Trans. Hor. Deflection Coil Vert. Deflection Coil Deflection Yoke Focus Coil 70 r- KJ 4* O N to $n X ) Drill one new mounting hole. ) Used in sets with 16 inch picture tube ) Used in sets with 19 inch picture tube. TRANSFORMER (AUDIO OUTPUT) ITEM No. T7A B RATING IMPEDAN

47、CE PRI. 4.6KQ SEC. 4. 22 DC RES. PRI. 2700 SEC. . 4fi REPLACEMENT DATA ADMIRAL PART No. 79A31-1 79A3I-4 STANCOR A-3877 MERIT A-3019 (3) CHICAGO RO-9 INSTALLATION NOTES 0) Used in sets which use 6SQ7 audio amplifier. (2) Used in sets which use 6AU6 audio amplifier (3) Drill one new mounting hole. SPE

48、AKER ITEM No. SP1A B C SP2A B C RATINGS FIELD PM PM PM CONE DIA. 11 1/2 11 1/2 9 1/2 V. C. IMP. 4. 2B V. C. DIA. 1 REPLACEMENT DATA ADMIRAL PART No. 78B55-1 (?) 78B55-2 78B47-1 JENSEN PART No. ST-102 10 MOD.P12-S OUAM PART No. 12A4A INSTALLATION NOTES Used in chassis 24E1, 24G1 Used in chassis 24D1,

49、 24FI $ Used in chassis 24H1 (JJ) Replace output transformer to match 6-8U voice coil. PAGE 15 RadioFans.CN PARTS LIST AND DESCRIPTIONS (Continued) FILTER CHOKE ITEM No. L1A B C RATINGS TOTAL DIRECT CURRENT . 180ADC D.C. RESISTANCE 54n INDUCTANCE 10 CURRENT 1000 /) 1.3 Henries REPLACEMENT DATA ADMIRAL PART No. 74B18-1 IAI ITEM No. M2 M3 BASE TYPE Bayonet Bayonet VOLTS 6-8 6-8 AMPS. .15 .15 BEAD COLOR Brown Brown REPLACEMENT DATA ADMIRAL PART No. 82A10-3 81A1-5 NOTES Type #47 Jewel pilot light Type *47 Pilot light MISCELLANEOUS ITEM No.