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Zenith 19M20, Manual

Get the most out of your Zenith 19M20 TV with the free downloadable manual available on our website. This user-friendly manual provides detailed instructions on how to set up and operate your TV efficiently. Download the manual now from manualshive.com and enhance your viewing experience.

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Summary of Contents for 19M20

Page 1: ...3 Trans Inductor Si Alignment Identification Horizontal Sweep Circuit Adjustments 11 Servicing in the Field Parts List and Descriptions Photographs Cabinet Rear View Chassis Top View RF Tuner Resistor...

Page 2: ...THE COOPERATION OF THE MANUFACTURER OF THIS RECEIVER MAKES IT POSSIBLE TO BRING YOU THIS SERVICE MEASUBED FROM PIN 1 A PHOTOFACT STANDARD NOTATION SCHEMATIC Howard W Sami Co Inc 1954 PAGE 2...

Page 3: ......

Page 4: ......

Page 5: ...r in t t LLJ N to to U N K N SET 259 FOLDER 16 PAGE 3...

Page 6: ...CHASSIS BOTTOM VIEW CA PAGE 4...

Page 7: ...JJ28 C32J C27 W CAPACITOR IDENTIFICATION PAGE 9...

Page 8: ...No pic no sound has raster V2 V3 V4 V5 V6 No pic no sound has snow VI V2 V3 No pic has sound has raster V6 V7 V19 Has pic no sound V8 V9 V10 Overloaded picture V7 SYNC FAILURE No vert sync VJ Vll Noho...

Page 9: ...OSCILLATOR ALIGNMENT The master oscillator adjustment A10 is to be made only if the individual channel oscillator adjustment fails to bring the channel within the range of the fine tuning control If c...

Page 10: ...empted unless proper test equipment is available Switch the receiver to the UHF position Connect the negative lead of a 2 volt bias supply to the ungrounded side of C31 Connect the positive lead to ch...

Page 11: ...IN 6 250KB Pin 4 in in on on OB on on on on IB OB INF 3Meg 32KB T12KB INF INFINITE 16B PIN 10 32Kfi Pin 5 on on 1470B tSOOB t8 2KB on on f32Kn t22KB 1 4KB TlOOKB t460n t47Kn teen 470KB t7on RESISTJ IN...

Page 12: ...VHP TUNER RIGHT SIDE VHP TUNER LEFT SIDE PAGE1O...

Page 13: ...horizontally by sliding and turning the brass sleeve on the neck of the picture tube AGC DELAY CONTROL ADJUSTMENT Connect the vertical amplifier of an oscilloscope through a 10KSJ resistor to point Lo...

Page 14: ...integator network check R5 R99 C55 and other associated components LOSS OF HORIZONTALSYNC VERTICAL SYNC SATISFACTORY Substitute V13 Check horizontal AFC network Check RSO C65 C70 and other associated...

Page 15: ...PHOTOFACT STANDARD NOTATION SCHEMATIC Howard W Somi S Co Inc 195J HP UHF TUNER WRT NO S2IOOI USED ON SOME MODELS ALTERNATE TUNER SCHEMATIC z zn n L zw6 L z n y H1IN3Z L SISSVHD...

Page 16: ...f R6 CHASSIS BOTTOM VIEW RI PAGE 14...

Page 17: ...f RESISTOR IDENTIFICATION PAGE 19...

Page 18: ...24 9 6 1 330 1000 015 1000 470 1000 470 470 1000 47 022 1 3 3 50 1000 1000 10 01 10000 0068 0033 27 0022 022 33 0022 VOLT 400 1 400 0 1 450 1 450 I 400 50 J 400 200 200 200 200 1000 600 600 600 200 60...

Page 19: ...1869 63 1869 63 1758 63 1813 63 1772 63 1862 63 1869 63 1866 63 1799 63 1799 63 3170 63 1729 63 1737 63 1733 63 1754 63 1772 63 1841 63 1821 63 1873 63 1708 63 1827 63 1873 63 1772 63 1760 63 1750 63...

Page 20: ...S 20993 B 95 1377 95 1378 S 19898 PART No A 8148 DY 9A Meril PART No MDF 72 Triad PART No DA 36 A 108X Y 17 1 RCA TYPE No 211D2 Halldorson PART No DF602 PART No Y 7 CD Winding and terminal assembly p...

Page 21: ...4th Video IF Series Peak ing Coil Shunt Peak ing Coil Series Peak ing Coil 4 SMC Trap Series Peak ing Coil Sound IF Quadrature Coil Horiz Osc Anti ringing coil DCRES PRI on on on on On on on on on on...

Page 22: ...es M2 L22 L23 L24 C81 C82 UHF VHF changeover Chassis 19M20U 19M21U Includes yoke cover Horiz Drive Blonde Models M1800EZ M1800E M1800EU R1800EZ RI800EUZ M2229E M2230E M2249E M2250E M2252E Mahogany Mod...

Page 23: ...CHASSIS BOTTOM VIEW TRANS INDUCTOR AND ALIGNMENT IDENTIFICATION...

Page 24: ...e to V17 filament Check R94 and other associated components GENERAL RASTER SOUND NO PICTURE Follow procedure outlined under Loss of Video RASTER PICTURE NO SOUND Follow procedure outlined under Weak o...

Page 25: ...Then turn control clockwise for clearest picture and best sound FRINGE LOCK ADJUSTMENT Turn the fringe lock control to 1 4 turn from full clockwise position Adjust the vertical and horizontal hold fo...

Page 26: ...SHATT IN MAXIMUM COUNTER CLOCKWISE POSITION DRIVE CORD STRINGING PAGE 23...

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