Atari SC1224 Service Manual Download | Manualshive

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Summary of Contents for SC1224

Page 1: ...3 SPECIFICATIONS 3 CONTROL OPERATION 4 THEORY OF OPERATION 5 ADJUSTMENT AND MAINTENANCE 6 8 BLOCK DIAGRAM 9 TIMING CHART 10 TROUBLE SHOOTING CHART 11 20 CHASSIS IMPORTANT PARTS 21 COMPONENT OF P C B 22 24 EXPLODED VIEW DIAGRAM 25 26 SCHEMATIC DIAGRAM 27 28 REPLACEMENT PARTS LIST 29 33 SERVICE MANUAL v ...

Page 2: ...X L SPRING SPEAKER MARK BRAND METAL EARTH HOLDER PLATE INSULATION COVER FUSE METAL VOLUME SUPPORTER PART NO MATERIAL Q TY REMARK 300 1 05 D 303 614D 341 236D 440 488D 440 207 A 34 1 068 A 341 236 A 31 1 486A 430 273A 4Q7 385A 430 268C 407 384B 430 420A 430 552A 430 421 A 320 01 2B 410 193A 430 554A 407 448A 303 791 A 430 553A HAN NAM HIPS 425TV HAN NAM HIPS 425TV HAN NAM HIPS 425TV LUCKY ABS AF 30...

Page 3: ...OR PROTECTION FROM X RADIATION FIRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURER S SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SHADED AREAS OF THE SCHEMATIC IMPORTANT AVIS SUR LA SECURITE LA PARTIE OMBREE DE CE DIAGRAME SCHEMATIOUE COMPREND QIMPORT ANTES CARACTERISTIQUES SPECIALES CONTES POUR PROTEGER DES RAYONS X ET DES DANGERS o lNCENDIE ET DE...

Page 4: ...PINCUSHION AND BARRELLING ...

Page 5: ...he cabinet back and ad justing the centering tabs on the neck of the tube located at the rear of the deflection yoke Turn the whole device clockwise or counter clockwise To increase the amount of raster shift move the two tabs which project from the device farther apart If the raster is tilted on an angle it may be straightened by loosen ing the deflection yoke locking clamp and rotating the defle...

Page 6: ...se the specified picture tube FIRE SHOCK HAZARD An isolation transformer must be inserted between the color monitor and AC power line before servicing the chassis In servicing attention must be paid to the original lead dress especially in the high voltage circuit If a short circuit is found replace all parts which have been overheated as a result of the short circuit All the protective devices mu...

Page 7: ...d to pin 13 of IC701 A pulse from the FBT pin 2 is rectified by D705 Under normal operating conditions the resultant voltage main tains the specified value If a malfunction cause excessive high voltage the amplitude of the pulse from the FBT increases causing a corresponding in crease in D704 which results in a voltage increase at pin 13 of IC601 A voltage increase at IC701 pin 13 makes the X ray ...

Page 8: ... Adjust R635 V LIN to the best condition 3 Non Linearity should be within 7 4 If V size is changed after adjusting R635 V LIN readjust R616 V SIZE At the time signal is reverse pattern SUB BRIGHTNESS ADJUSTMENT 1 Supply white color with a computer to the video input terminal 2 Turn the contrast to the maximum with the contrast volume fully clockwise and BRIGHTNESS to the minimum with the bright vo...

Page 9: ...BLOCK DIAGRAM ...

Page 10: ...0714 R747 ROSUB 1SKI1 2WI 220 16 R702 i2K l 2WJ Q701 KTC7279 IC601 IA7D0 S00I1 2W 220 v position iwj E906 E90S OE7IOOF 222M 400V Kt 220 2S 1 2W1 E904 E909 0 0067 1KV 10 1 2WI 0602 COIll W4007 lOO SOl iC401 220 16 0347 MYLAR C902 0 1 AC250V SBOl OlS RGPWO 1723 734 Cf UK i3J HV 1PS aw 00022 400V P P 0709 RGPKO TC7I9 R72S J_31 S0 2 2K sHOLO DOWN r RGP100 R963IFUSING ii X 961 WoQVI T 000 2SV R732 CFUS...

Page 11: ...RENE 4 9 METAL B C SUPPORTER 430 502A 1 10 METAL B C SUPPORTER 430 503A 1 11 SCREW HEXGON HEAD 4 12 METAL PCB FIXING 430 498B 1 13 METAL VOLUME FIXING 430 5040 1 14 METAL PCB FIX SMPS 430 5500 1 15 PLATE HEAT SINK 407 390A 1 16 PLATE PCS FIXING 407 391 A 1 17 METAL SMPS CASE FIXING 430 501C 1 18 PLATE INSULATION 407 142A 1 19 COVER SMPS 303 727A 1 20 SPRING SPEAKER 320 0120 1 21 METAL EARTH HOLDER...

Page 12: ...TIMING CHART HORIZONTAL TIMING VERTICAL TIMING NOTES 1 SIGNAL INPUT LEVEL lVp p 2 TIME TOLERANCE 0 1 3 THE MONITOR IS ADJUSTED ACCORDING TO THE ABOVE TIMINGS AND FREQUENCY io TROUBLE SHOOTING CHART ...

Page 13: ...B NO POWER 2 ...

Page 14: ...PPEAR SPECIFIC COLOR INPUT SIGNAL CABLE or LOGIC SIDE NO TROUBLE IN 115V LINE TROUBLE IN VIDEO OUT PUT TRANSISTOR Q501 Q506 TROUBLE IN R510 R511 NO R512 CHECK G1 G2 VOLTAGE Gl ABOUT 55V G2 ABOUT 340V TROUBLE NO FBT ABOUT 4 5Vp p REPLACE CRT 14 15 ...

Page 15: ...E NO HORIZONTAL SYNC 16 F NO VERTICAL SYNC 17 ...

Page 16: ...G CONVERGENCE IS BAD H FOCUSING PROBLEM 18 I VERTICAL PIN COMPENSATION V PCC IS BIG J HORIZONTAL LINE 19 ...

Page 17: ...RIGHT R742 SCREEN FOCUS HOLD DOWN R725 H HOLD R716 SIGNAL CABLE V CENTER R626 H POSITION R710 ON VOLUME V HOLD R603 V SIZE R616 CONTRAST BRIGHTNESS V LIN R635 SIDE PCC R621 DRIVE R343 B CUT OFF R357 G DRIVE R303 G CUT OFF R337 R LEVEL R369 R CUT OFF R317 R DRIVE R323 B LEVEL R372 2 ...

Page 18: ...2 C P T P C B LAYOUT ...

Page 19: ...3 POWER P C B LAYOUT GOLD STAR Co Ltd P N I I I 069A 24 ...

Page 20: ... RD 1 8W 10K ohm R315 01157053 RD 1 8W 15 ohm R359 01157091 RD 1 8W 560 ohm R316 01157084 RD 1 8W 300 ohm R360 01157129 RD 1 8W 22K ohm R317 180 098D SR29R 1KB R361 01154045 RD 1 2W 6 8 ohm R318 01157121 RD 1 8W 10K ohm R362 01157110 RD 1 8W 3 6K ohm R319 01157091 RD 1 8W 560 ohm R363 01521025 RN 1W 1 ohm R320 01157129 RD 1 8W 22K ohm R364 01154101 RD 1 2W 1 5K ohm R321 01157071 RD 1 8W 82 ohm R36...

Page 21: ...03pF 80 20 08110315 CE 22uF 16V 08110315 CE 22uF16V 08110315 CE 22uF 16V 08110319 CE IOOuF 16V 181 064R BP 1uF50V 02140719 CE IOOuF 160V 02140322 CE 330uF 16V 08110315 CE 22uF 16V 30 PRODUCT SAFETY NOTE Components shaded have special characteristics important to safety Before replacing any of these components read carefully the PRODUCT SAFETY NOTICE of this service manual Don t degarde the safety ...

Page 22: ...43A M29JLB61X1 1 R513 01157066 RD 1 8W 51 ohm 1 1 1 50 373B COIL DEGAUSSING R514 01157066 RD 1 8W 51 ohm R515 01157066 RD 1 8W 51 ohm 3 POWER P W B R516 180 HOP RF 2W 1 2 ohm RESISTOR R517 01154163 RD 1 2W 560K ohm R518 01154163 RD 1 2W 560K ohm R901 01154153 RD 1 2W 220K ohm R519 01157070 RD 1 8W75 ohm R950 01154145 RD 1 2W 100K ohm R520 01157070 RD 1 8W 75 ohm R951 01154147 RD 1 2W 120K ohm R521...

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