Philco 22C4020 Service Manual Download Page 1 | Manualshive

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Summary of Contents for 22C4020

Page 1: ...Resistance Measurements 8 Servicing in the Field 18 Schematic 2 Trouble Shooting Aids 12 17 Tube Failure Check Chart 5 Tube Placement Chart Bottom View 8 Tube Placement Chart Top View 5 K K 10 s o o...

Page 2: ...L L ri W o o 0 II MMF L I INN S3i m HI I MEASURED FROM 125V LINE JBLK 2 Pin numbers art counted ii alion nosignal spplipd A PHOTOFACT STANDARD NOTATION SCHEMATIC How d W S Co Inc 19S5 PAGE 2...

Page 3: ......

Page 4: ...AF AMP AGC CLAMPER 6AT6 AUDIO OUTPUT 6V6GT...

Page 5: ...PHILCO MODELS 22C4O2O 22C4128M 22C4132L Ch TV4OO...

Page 6: ...PHILCO MODELS 22C4O2O 22C4128M 22C4132L Ch TV4OO M3IA dOl SISSVHD...

Page 7: ...39Vd...

Page 8: ...o O CHASSIS BOTTOM VIEW CAPACITOR IDENTIFICATION OOfrAl S13QOW ODTIHd...

Page 9: ...aster V2 V3 V4 V5 V6 V7 No pic no sound has snow VI V2 V3 No pic has sound has raster V7 V8 V9 V25 Has pic no sound V10 VU V12 V13 V14 Overloaded picture V9 V13 SYNC FAILURE No vert sync V7 V16 No hor...

Page 10: ...DUMMY ANTENNA 82000 Carbon Resistor SIGNAL GENERATOR COUPLING High side to point fi thru 2200S2 resistor Low side to chassis SIGNAL GENERATOR FREQUENCY 4 SMC Unmod CHANNEL Any CONNECT VTVM C probe to...

Page 11: ...177MC 10MC Swp 8SMC 10MC Swp 44MC 10MC Swp MARKER GENERATOR FREQUENCY 213MC 210MC 216MC 177MC 174MC 180MC 85MC 44MC CHANNEL 13 7 6 UHF position CONNECT SCOPE Vert Amp thru 10KS2 to point Low side to...

Page 12: ...on t70on on in on in on ti2Kn NC HAVE son son PIN 11 t200Kn Pin 5 in in t3Kn f3 9Kn tSKIZ tsxn in f2 2Kn 175Kn t220n twxn INF NC SOOKO on in on IMeg on IMeg f20 Pin 6 INF on t3Kn t3Kn t8Kn T3Kn 8KSJ t...

Page 13: ...RF TUNER RIGHT SIDE RF TUNER LEFT SIDE PAGE 1O...

Page 14: ...e horizontal oscillator control R7 until the picture Is centered between the two blanking bars Remove the 1MFD capacitor Adjust the horizontal oscillator coll slug Bl until the picture is again center...

Page 15: ...network Check R96 R95 R97 R3 C96 C97 and other associated components LOSS OF HORIZONTAL SYNC VERTICAL SYNCSATISFACTORY Check by substitution V18 and V19 Check horizontal AFC network Check C108 C110 C...

Page 16: ...24 C114 and other associated components GENERAL RASTER SOUND NOPICTURE Follow procedure outlined under Loss of Video RASTER PICTURE NO SOUND Follow procedure outlined under Weak or No Sound RASTER NO...

Page 17: ...CB2 C53 C54 RATING CAP 40 130 10 10 A 20 10 1 20 2 20 tlO 100 20 33 1000 220 150 150 5 3 150 68 1 3 3 3 15 27 5 3 1 5 2 2 12 12 220 1000 7 5 680 1000 1000 5 1 5 8 1 5 1 5 100 680 1500 1500 18 1 5 680...

Page 18: ...e versions use 25MFD in this application CONTROLS PARTS LIST AND DESC RESISTC ITEM No RIO Rll R12 R13 R14 R15 R16 R17 RIB HI9 R20 R21 R22 R23 R24 R25 H26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R3...

Page 19: ...5108340 66 3688340 66 5228340 66 4158340 66 3278340 66 3228340 66 2828340 66 2828340 66 5108340 66 1688340 66 4224340 66 5188340 66 4688340 66 5228340 66 3108340 66 1685340 66 4104340 66 2195340 66 3...

Page 20: ...24 ITEM No J 1 L2 L3 L4 L5 L6 L7 L8 L9 L10 Lll L12 L13 L14 L15 L16 L17 L16 L19 L20 L21 L22 L23 L24 L25 L26 L27 L28 L29 L30 L31 L32 L33 L34 L35 L36 L37 L38 L39 L40 L41 L42 L43 L44 L45 L46 L47 L48 L49...

Page 21: ...6213 9 76 6213 6 76 6104 9 54 6140 3 54 6140 1 54 6140 1 54 6140 3 54 6140 3 54 6140 1 54 6137 54 6137 1 54 9213 43 54 9213 37 54 9213 36 28 9376 17 28 9376 12 28 10075 1 NOTES 1847 Bayonet VHF Built...

Page 22: ...OUND IF DETECTOR BUZZ ADJUSTMENT To eliminate sound IF detector buzz adjust the ratio detector secondary L44 located on top of chassis For location see tube placement chart FUSES One fuse is used for...

Page 23: ...aft PAGE 19...

Page 24: ...CHASSIS BOTTOM VIEW RESISTOR IDENTIFICATION...

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