SERVICE MANUAL - AndysArcade.De
Contents
1. 82 28167 1091 10 50 4 110 201 0407 410 83 28167 2291 2 2UF S0V 1 315 84 28167 3391 3 3UF S0V 1 403 85 28167 4791 4 7UF 50V 1 405 86 28167 1001 100 50 3 301 422 424 87 128147 4701 47UF 25V 2 314 206 88 28137 1011 100UF 16V 1 C305 89 28147 1013 E C 100UF 25V 1 106 90 28157 1014 100UF 35V 2 307 308 91 28108 1001 100UF 160V 3 115 116 425 92 28137 4701 E C 470UF 16V 3 304 402 501 93 28157 4701 470UF 35V 1 306 94 28147 10021 E C 100UF 25V 1 C504 95 28157 10021 E C 1000UF 35V 2 118 119 96 28157 22021 2200UF 35V 1 312 97 28157 0471 0 47UF 35V 1 203 98 28118 3301 330UF 400V 1 104 99 29166 2203 E C NP 22UF 25V 1 16 100 29166 1093 TAN 1UF 35V 2 309 313 DIODE 101 15A00 0012 IN4148 4 D201 D302 D402 D403 102 15Z33 4742 IN4742 12V1W 2 ZD101 ZDS501 103 15Z33 ZD7A ZD7A 7V 1 2W 1 20401 104 15Z33 ZD15A 7015 15 1 2W 1 20301 15833 D401 D501 D502 106 15833 10DF4 10DF4 3 D102 D104 D301 107 15S33 RGP10M RGP 10M 2 03 105 108 15833 30DF2 30DF2 1 D107 109 13833 30084 30DF4 1 D106 110 15S33 PBL406 PBL406 1 D101 TRANSISTOR 111 15T33 A1015 T R 1015 1 2 05072. 12K 271 195 22225 4721 47K 3 R907 R910 R920 Page 17 196 22225 2221 22K 1 197 22225 1031 CF 14W 10K 4 _ R904 R905 R906 R912 198 22225 4731 14 47K 2 R909 R944 199 22245 2211 1 2W 220 OHM 3 R940 R941 R942 200 22245 1041 100K 1 R945 201 22246 2075 1015 22 AWG UL CSA 500M M 1 202 23255 2721 MEF 2W 2 7K 3 R946 R947 R948 203 25A01 101B V R VZO 100 OHM 2 R934 R935 204 25401 5018 VR VZO 500 OHM 3 R936 R937 R938 205 45511 2717 2717 50 3 913 918 919 206 SC45 F1H104ZAY 1047 50 9 902 907 908 909 910 911 912 914 916 207 45 2 472 472 500 1 923 208 CK45 B3D102KYA C C 102K 2KV 1 C922 209 28137 1011 100UF 16V 3 906 915 917 210 28167 4791 4 TUF 50V 4 901 903 904 905 211 28177 4791 4 7UF 250V 1 921 212 28177 1001 10UF 250V 1 920 213 47 10 120 ELO60SKI 120J 12UH 1 1905 47E10 3R9 ELO60SKI 3R9J 3 9UH 4 1 9011 902 1 903 1 904 215 15133 945 TROMS 1 090 216 15733 4367 TR C4367 3 0901 0902 0903 7 217 16103 LM1203 71 0 7218 15733 58 TR C3788 173 090409050
3. 10 90 NO CONDENSATION 1096 90 CONDENSATION SIGNAL CONNECTOR POWER CONNECTOR 1 2 3 1 4 GROUND PIN 2 GREEN PIN 5 V SYNC PIN 3 BLUE PIN 6 H SYNC Page 3 PIN 1 LINE PIN 2 GROUND PIN 3 NEUTRAL 4 BLOCK DIAGRAM OUTPUT DRIVER BUFFER R IC 901 1203 DRIVER BUFFER OUTPUT DRIVER BUFFER w CONTRAS Ms IC 401 LA 7850 gt 10301 LAT836 6 H POSI H FREQ CONVERTER TRANSFORMER 125V AC 120V 220 26 4 5 ADJUSTMENT PROCEDURES 5 1 INITIAL SETTINGS Before turning on the power all initial settings shall be positioned as following Clockwise and counterclockwise directions shall be followed from a position facing the front of the monitor itself 5 1 1 Set the R G B Bias pots R938 R937 R936 driver R934 R935 counterclockwise at center position 5 2 SMPS DC OUTPUT SETTING 5 2 1 Plug the AC line cord directly into a 120 V AC 60 Hz outlet then turn the AC power switch on 5 2 2 Plug the Video cable directly into a compatible Signal Generator Set it to the cross hatch pattern video signal NT 2515C 15 750Khz 60hz NT 25E 25Khz 60 hz 5 2 3 Adjust the R112 to set the horizontal deflection B the connection point of R117 R424 to 125 00 0 50 VDC 5 2 4 Check all the other output DC voltages or AC wave to meet the following specs 1 The
4. 500 114 58 45 2 56 561 500 1 416 59 45 2 102 102 500 4 111 404 415 418 60 45 103 50 3 202 502 205 21 61 45 04 104 50 2 120 318 62 45 30561 561 2 1__ 421 63 CK45 B2H103KYA 103 500 3 0 117 414 64 513 2 222 8 222 400 2 112 113 65 CS17FZ2GA103ZYAS 1037 400 2 01 102 66 32114 1037 103J 100V 1 _ 03 67 32114 6831 683J 100V 2 207 310 68 32115 2225 PEN 222J 100V 1 C411 69 32115 4721 4721 100 1 317 70 32115 682 PEN 682J 100V 1 C409 71 32115 1035 PEN 103J 100V 1 C408 72 33116 5631 MER 563J 250V 1 C423 73 33116 104 MER 104J 100V 2 C318 C302 74 33116 2241 MER 2241 100 1 08 75 33175 2711 PPN 271J 100V 1 C109 76 33175 3326 3326 100 1 107 774 77 33175 5626 PPN 562G 100V 1 C406 78 35155 394 PPN 394J 400V 1 NT 25E 35155 4741 PPN 4741 400 1 417 1 25150 79 33145 1021 PMP 102J 1 6KV 1 C419 80 33145 3321 332J IKV 1 105 81 33145 8221 8221 1 6 1 420 25 33145 1031 1031 1 6 1 420 2515 14
5. 2050 2064 8060 1062 9 10 13 5 5022 t 5292 voso bold 1019 8010 402 5 voly 90 6015 a zus void D 2 019 3 r a D 5 5 ae Lona gt 2 31 gt 2 2 itt 5 aT gt lo D 202 gt 1024 1022 le 8028 020 0S 1065 tozu 5 10 9010 D soso 275 5 6159 5052 8 7050 is sh N 219 ol 278 R938 ay 918 R 8934 R948 T y 0906 50903 1905 150901 RJO E T 903 9 18 54 T8 8 we R 901 9 190 R908 r932 901 CLAMP 7w 904 1902 GNO Page 12 BILL MATERIAL LIST
6. PARTS NO SPECIFICATION QT Y LOCATION RESISTOR 1 22225 0102 1 4 1 OHM 1 R429 2 22225 1002 C F 1 4W 10 OHM 1 R427 22225 1012 1 4W 100 OHM 3 R115 R116 R305 4 22225 1302 C F 1 4W 130 OHM 1 R333 5 22225 1502 1 4W 150 OHM 1 R327 6 22225 2202 1 4W 220 OHM 2 161096211 7 22225 4702 149 470 OHM 3 R204 R301 R421 8 22225 6802 1 4W 680 OHM 3 R313 R521 R531 9 22225 1022 1 4 1K 8 R203 R205 R405 R415 R416 R431 R523 R409 10 22225 1322 CF 14W 13K 1 R331 11 22225 2222 22K 3 _ R210 R317 R206 12 22225 2422 24 1 R332 13 22225 2722 2 7K 2 R207 R326 14 22225 3322 CF 14W 3 3K 4 R214 R417 R420 R208 15 22225 4722 47K 2 R108 R113 16 22225 6822 1 4W_ 68K 1 R215 17 22225 8222 C F 1 4 82K 2 R328 R408 18 22225 9122 4 9 1K 1 R329 19 22225 1032 10K 7 R103 R107 R202 R209 R407 R410 R422 20 22225 1232 12K 6 R306 R404 R412 R413 R414 R419 21 22225 1532 1 47 15K 1 R304 22 22225 2232 22K 4 R213 R302 R308 R411 23 22225 3332 CF 14W 33K 3 R212 R316 R406 24 22225 3932 C F 14 39K 1 R307 25 22225 4732 47 2 201 310 26 22225 1042 14 100K 1 R330 27 22225 1242 1 4W 120 1 R303 28 22225 1842 C F 14 180K 1 R321 29 22245 0473 12 0 47 OHM 1 R118 22245 2203
7. 400V 400V NEOTEC GRAPHIC INTERNATIONAL INC 7 NT 2515C NT 25E POWER SUPPLY 8331 R332 0304 R333 1402 caig R521 R522 390 620 IW 1 3 2 4 B647 130 8815 102 500 R530 alois 3 3K P502 N IC 301 7836 gt 050288449 A gt 4 Os BRIGHTNESS 680 2 R301 470 R 42 8 104 50V S H V GND B G 10K R211 220 201 R208 11 C2044 19 50 3 Q 50V R203 1 35 1040 147850 gt N s C419 102 4148 17 C417 3943 400V C420 822 1 6 T402 FT 238 Q402 C4542 4 4 1 POSI 470u NEOTEC GRAPHIC INTERNATIONAL INC 16V 2515 25 MAIN BOARD 203 0 47u 35V 25 C912 1040 507 8920 4 7 1901 3 9 A63LAT80X257 1903 3 9uH R940 220 1 2 0905 3788 R934 100 9902 A63LAT80X63ME 4 7u 50 R942 220 1 2 R941 220 1 2 921 4 7 250 R930 82 9903 54367 R926 330 R924 82 s0 8936 500 9907 B K C945 CONTRAST 47K NEOTEC GRAPHIC INTERNATIONAL INC APPROVED BY NT 2515C 25 VIDEO BOARD eee 30 LSNIVOY 11 0 1 4 BOS 44 1043 wr AOD
8. 5 7 1 Change the compatible Signal Generator video signal to a 350 line blank pattern video signal Set the Brightness VR R529 to the maximum position and the Contrast VR R990 to a minimum position 5 7 2 Adjust the G2 VR until the background raster is just visible and note what color appears Now adjust the other 3 colors of the Bias VRs R938 Red Bias R937 Green Bias R936 Blue Bias to obtain a dark gray raster 5 7 3 Re adjust G2 VR and Check the brightness within range of 2 0 5FL until the retrace line is barely visible 5 8 R G B GAIN SETTING 5 8 1 Change the video signal to a full white Pattern video signal 5 8 2 Set contrast VR990 to maximum and adjust Brightness VR R529 until the background raster is barely visible 5 8 3 Adjust R938 R937 R936 to obtain a full white pattern and check to make sure the Page 6 brightness 15 within a range of 50 5 FI 5 9 WHITE BALANCE CHECKING 5 9 1 Adjust the Brightness VR R529 until the background raster is just visible 5 9 2 Adjust the Contrast VR R990 to obtain a full white pattern of 3 0 0 521 and check the screen center color temperature within range of x 281 025 310 025 if not then repeat 5 8 5 10 FOCUS SETTING 5 10 1 Adjust the Brightness VR R529 until the background raster is just visible Adjust the Contrast VR R990 to full white pattern of 25 0 1 0 5 10 2 Change the compatible Signal Generator video signal to a 350 lin
9. 0508 1 112 15T33 A673 A673 1 0302 113 15 33 647 647 1 0304 114 15 33 945 945 1 0303 115 15T33 C1212 1213 1 0301 116 15T33 C2688 C2688 1 0401 117 15 33 01879 D1879 1 0402 2515 15 33 4542 4542 1 0402 25 118 15T33 K1507 FET K1507 956 1 0101 15 119 16103 4605 TDA4605 15 1 1 101 120 16103 LX7836 I C LA7836 1 16301 121 16103 LA7850 LC LA7850 1 401 VR 122 25A01 302B VZ067TL1 1 403 123 25401 5028 2067 5 2 R112 R418 124 25 01 103 V R 2067 1 10K 2 314 8499 125 26F00 0001 PTCR270N 1 101 126 47 10 287 5 05 5 2 7UH 1 1 401 127 47 10 12 9007 1J 9007 2 11021103 128 47W10 WL0024 WIDTH COIL WL0024 1 L403 129 47L10 L00026 LINEAR COIL LL00026 1 L402 130 47L10 TF15002 LIN FILTER TF15002 1 L101 131 47D10 J90003 DRIVE TRANS LJ90003 1 401 132 47 10 190002 PIN TRANS 1 190002 1 T403 133 47 10 238 FBT TRANS 238 1 402 NT 25E 47 10 216 FBT TRANS 216 1 402 25150 134 547 5 0010 10 29 135 54JP5 0125 J W 12 5M M 5 136 50 5 0150 J W 15MM 6 J 137 PBP 15606 P
10. C F 1 2W 2 2 OHM 3 _ R426 R524 R526 31 22245 4793 47 OHM 1 R311 32 22245 2203 22 OHM 1 R110 33 22245 1003 C F 10 OHM 1 R525 34 22245 3303 C F 1 2W 330 OHM 2 R312 R428 35 22245 4723 1 2W 47K 2 R423 R113 36 22245 1533 C F 1 2W 15K 1 R425 37 22245 1043 1 29 100K 1 R432 38 22245 1543 12 150K 1 R104 Page 13 39 22245 8243 12 820K 1 18106 4 40 23245 1204 MEF1W 12 OHM 1 6309 41 23245 4704 1W 47 OHM 1 120 _ 42 23245 6204 1W 620 OHM 1 522 43 23245 2744 270 1 6105 44 23255 0473 2W 0 47 OHM 1 16117 45 23255 0473 MEF 2W 0 47 OHM 1 8430 46 23255 1803 180 OHM 1 119 47 23255 2233 MEF2W 22 1 102 48 23875 3323 1 R424 49 23795 0507 WRCM5 0 5 OHM 1 50 23795 2227 WRCS7 22K 1 RI 51 23795 1037 WRCS 7 10 1 14 5 52 45 1807 181 50 1 53 45 2 3317 331 50 1 204 54 45 2 0 101 500 1_ _ 55 45 2 181 500 _ 1 412 _ 56 45 27 2712 50 1 413 _ 57 45 2
11. connection point of L905 C920 165 0V 2 0 VDC 2 The connection point of L103 C119 26 0V 1 0VDC 3 connection point of L901 C906 12 0V 0 5VDC 4 connection point of FBT 9 R429 24Vp p 1Vp p 5 3 H HOLD SETTING 5 3 1 Change the video signal to a compatible Signal Generator to a 350 line color bar pattern video signal 5 3 2 Short 1 of 401 to ground through 100 uf 16vEC cap adjust the R401 to get the picture to stand up vertically then release the ground shorting 5 4 H SIZE amp H CENTER SETTING 5 4 1 Change the video signal to a compatible Signal Generator to a 350 line crosshatch pattern video signal Page 5 5 4 2 Adjust R402 H Phase to set the picture center of raster 5 4 3 Adjust L403 H Width for a horizontal display size of maximum 5 5 V SIZE amp V POSITION SETTING 5 5 1 Change the video signal to a compatible Signal Generator to a 350 line crosshatch pattern video signal 5 5 2 Adjust R324 V Size for a vertical display size of maximum 5 5 3 Adjust R319 V Position to set the picture in center of the raster 5 5 4 Adjust R314 V Lin to set the vertical linear 5 5 6 THE SIDE PINCUSHION ADJUSTMENT 5 6 1 Change the compatible Signal Generator video signal to a 350 line crosshatch pattern video signal 5 6 2 Adjust R322 Pin Ad to modify the left right side pincushion distortion to meet the specs of 1 00mm 0 25mm 5 7 BACKGROUND BRIGHTNESS SETTING
12. 2512 25 2515 12 1 DEGAUSSING COIL 162 4690000180 6P 1 CABLE 163 54 10 0002 25 2515 1 5 2P 1 CRT GROUND WIRE 164 76201 0140 BRACKET A 2 CRT FRAME 165 76201 0150 2 FRAME SUPPORT 166 76201 0160 BRACKET C 1 FRAME SUPPORT 1 167 67218 70120 ISO 7X12 12 168 67300 47120 FLAT WASHER 4 169 67218 40130 TAP 4X13 2 170 AMP1 480701 0 AMP 1 171 480705 0 1 CONTROL BOARD 172 22225 6802 C F 1 4W 68 OHM 1 R323 173 22225 6812 1 4W 680 OHM 1 R315 174 22225 2222 14 2 2K 1 R318 175 22225 3322 4 33 1 8530 176 25 01 500 VZO B500 OHM 1 R322 25A01 102B 1 25 01 502 VR VZO 5 25A01 103B V R VZO B 10K 2 180 25A01 503B V R VZO B 50K 1 R324 25A01 204B V R 20 B 200K 1 182 64B33 0501 2 5M 5 P 1 183 64B33 1001 2 5 10P 1 184 547 5 0010 10M M 1 185 64B33 0301 2 5M 1 901 186 11531 003 183x38 CONTROL BOARD 1 PCB 003 187 76201 0170 BRACKET D 1 PCB 003 CRT BOARD 188 22225 4701 C F 1 4W 47 OHM 5 R913 R917 R923 R925 R928 189 22225 8201 C F 1 44W 82 OHM 6 R901 R902 R903 R924 R930 R933 190 22225 1011 C F 1 4 100 OHM 1 R916 191 22225 3311 1 4W 330 OHM 3 R926 R929 R931 192 22225 3911 1 4W 390 OHM 6 R914 R915 R918 R919 R922 R927 193 22225 1021 1 4W 1K 3 R932 R939 R943 194 22225 1221
13. 96 219 15533 4005 749 1 p 220 GTPPN23605 23602 2 1 904 221 23606 G T PIN 2 36 1 222 64 33 0301 PBP XHO2 5M 3P 1 902 223 64833 0601 PBP XHO2 5M 6P 1 901 224 50199 2 5 1 225 75123 761088 3788 HEAT SINK 226 11531 004 CRT BOARD 1 PCB 004A 227 54JP5 0010 10 7 18
14. BP 15606 1 5A 6P 1 402 138 39606 39606 3 9 6P 1 301 139 GIPPN23602 PBP 23602 2 36A 2P 1 P101 140 GTPPN23604 23604 2 36A 1 403 141 GTPPN469 184A 469 184A 2 5M M 5 800M M 1 P401 142 GIPPN469 179 469 179 2 5M M 6P 500M M 1 502 143 469 178 469 178 2 5 500 1 144 GTPPN469 185A 469 185A 2 5M M 10P 850M M 302 145 GTPPN469 190 469 190 2 5M M 3P 100M M 1 146 GTPPN469 127 469 127 2 36A 1P 100M M 1 147 68A00 0010 FUSE FC 503V CLIP 5 2C 20 1 F101 148 49F52 2505 FUSE UL 5A 250V 20 1 101 NT 25E 49F52 2504 FUSE UL 4A 250V 20 1 101 2515 149 47510 6002 POWER TRANS 76002 1 0 150 50006 1510 ST2 18UL FEET 1 151 75123 761048 002 956 1 HEAT SINK 152 75123 761007 7837 451 1 HEAT SINK 153 75123 25 01 D1879 C4542 1 HEAT SINK 154 11531 002 250x200 MAIN BOARD 1 002 155 76201 25E02 PCB 002 1 156 67218 30080 3 8 9 SCREW 157 67218 40100 2 4 10 1 5 158 67205 30101 ISO 3 10 1 D1879 SCREW Page 16 169 67400 30101 3C 1 D1879 WASHER 160 A63LAT80X257Y NT 25E 25 63 80 63 2515 1 25 161 46600
15. TIME WARNER INTERACTIVE SERVICE MANUAL 25 CGA EGA COLOR MONITOR MODEL NT 2515C NT 25E NEOTEC GRAPHIC INTERNATIONAL INC 5 1 INTRODUCTION 55 2 gt SPECIFICATION 3 DIAGRAM 4 ADJUSTMENT PROCEDURES 2559 5 7 SCHEMATICS 8 12 OR MATERIAL 550 13 18 CAUTION Before servicing this chassis it is important that the service technician should read the Safety Precaution and Product Safety Notice in this Service Manual 1 SAFETY PRECAUTIONS NOTICE Comply with all cautions and safety related notes located on or inside the cabinet and on the chassis or picture tube The following precautions should be observed 1 Do not install remove or handle the picture tube in any manner unless one wears shatterproof goggles People not so equipped should be kept away while picture tube is handled Keep picture tube away from the body while handling 2 When replacing a chassis in the monitor all the protective devices such as barriers non metallic knobs adjustment and compartment shields and isolation resistor capacitor must be put b
16. ack in place 3 When service is required observe the original lead dress Extra precaution should be taken to assure correct lead dress in the high voltage circuitry area 4 Always use the manufacturer s replacement components Especially critical components as indicated on the circuit diagram should not be replaced by other manufacturer s Furthermore where a short circuit has occurred replace those components that indicate evidence of overheating 5 Before returning a serviced monitor to the customer the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock and be sure that no protective device built into the monitor by the manufacturer has become defective or inadvertently defeated during servicing Therefore the following checks should be performed for continued protection of the customer and service technician HIGH VOLTAGE This monitor is provided with a high voltage hold down circuit for clearly indicating that voltage has increased in excess of a predetermined value Comply with all notes described in this Service Manual regarding this hold down circuit when servicing so that this hold down circuit may function correctly SERVICE WARNING With minimum Brightness and Contrast the operating high voltage in this display is lower than 30KV If any component having influence on the high voltage is replaced confirm that the high voltage with minim
17. e full white crosshatch pattern video signal 5 10 3 Adjust the Focus VR to get an optimized focus for the total screen 5 11 MISCONVERGENCE SETTING 5 11 1 Change the compatible Signal Generator video signal to a 350 line crosshatch pattern 5 11 2 Open the knobs of the two 4 pole magnets and make the blue and red vertical lines match with each other at the center of the picture 5 11 3 Turn the magnet while keeping the 4 pole magnets open and make the blue and red lateral lines match with each other 5 11 4 Open the knobs of the two 6 pole magnets and make the green vertical line match with the blue and red vertical lines at center of the picture 5 11 5 Turn the 6 pole magnets while keeping their knobs open until the green lateral line matches with the blue and red lateral lines at the center of the picture Page 7 INPUT 110 220V C101 103 400V R102 22K 2 D102 10DF4 lt 3 R115 100 R116 5 R110 22 1 2 100 8 R107 10K 100 4 507 5007 R117 D106 _30DF4 0 47 20 C117 125 103 500V C114 331 1 500V D107 30DF2 1 103 gt 9 118 7 7 119 7 7 R118 1000u 1000u 0 47 35V 35 L 1 2 R119 180 12 5 24 401 20101 10 742 0 0000000000000000000000090000000 O gt lt gt O gt lt gt lt gt lt lt gt 112 113 25 222 222 101 5 250
18. nual The use of a substitute replacement component which does not have same safety characteristics as the manufacturer recommended replacement one shown in the parts list in this Service Manual may create shock fire X radiation or other hazards Product Safety is continuously under review and new instructions are issued from time to time For the latest information always consult this Service Manual 2 INTRODUCTION This service manual gives information about the NT 2515C NT 25E color display monitors These color monitors accept analog inputs for R G B they feature stable convergence easy maintenance and compact styling Page 2 3 SPECIFICATION MODEL NT 2515C NT 25E VIDEO SIGNAL TYPE RGB SEPARATE 1 0 4 0VP P RGB SEPARATE 1 0 4 0VP P RISE AND FALL TIME 15 NANOSECONDS 25 NANOSECONDS VIDEO BANDWIDTH 15MHz 3db 30MHz 3db RESOLUTION 560x240 640X350 SYNC HORIZONTAL FREQUENCY 15 75KHz 25KHz VERTICAL FREQUENCY 60Hz 60Hz LINEARITY 5 5 HIGH VOLTAGE 25KV 25 5KV HIGH VOLTAGE REGULATION 2 2 HIGH VOLTAGE SHUT DOWN AUTOMATIC __ AUTOMATIC POWER SUPPLY 120 220 VAC UNIVERSAL 120 220 VAC UNIVERSAL POWER CONSUMPTION 85W 110W LINE VOLTAGE REGULATION 1 1 CRT 0 82mm DOT PITCH 0 82mm DOT PITCH PHOSPHOR P22 P22 25 CRT 25 CRT ENVIRONMENTAL CONDITIONS AMBIENT TEMPERATURE 0 55 C 0 55
19. um Brightness and Contrast is lower than 30KV To measure high voltage use a high impedance high voltage meter SENSITIVE RESEARCH MODEL ESH or Equivalent Connect to chassis earth and to the CRT anode button Page 1 NOTE Make sure to turn power switch off before making the connection to the Anode Button X RADIATION TUBE The primary source of X radiation in this monitor is the picture tube The tube utilized in this chassis is specially constructed to limit X radiation emissions For continued X radiation protection the replacement tube must be the same type as the original manufacturer approved type When trouble shooting and making test measurements in a monitor with a problem of excessive high voltage avoid being unnecessarily close to the picture tube and the high voltage components Do not operate the chassis longer than is necessary to locate the cause of excessive voltage PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the color monitor units have special safety related characteristics These are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for high voltage wattage etc Replacement parts that have these special safety characteristics are identified in this Service Manual Electrical components having such feature are identified by marking with on the schematics and on the parts list in this Service Ma
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