Ball Electronic Display Division TD Series Service Manual Download | Manualshive

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Summary of Contents for TD Series

Page 1: ...VICE MANUAL Video Monitor TD Series Electronic Display Division 5 017 1015 Aug 31 1979 Rev C BALL ELECTRONIC DISPLAY DIVISION P O BOX 43376 ST PAUL MINNESOTA 55164 TELEPHONE 6121 786 8900 TWX 910 563 3552 ...

Page 2: ...Frequency Control 3 7 Low Voltage Power Supply IV ADJUSTMENT AND MAINTENANCE 4 1 General 4 2 HV Shutdown Resistor Replacement 4 3 Vertical Circuit Adjustment 4 4 Horizontal Circuit Adjustment 4 5 Chassis Removal 4 5 1 TD23 Model 4 5 2 TD12 and TD15 Models 4 6 CRT Replacement 4 6 1 TD23 Model 4 6 2 TD12 and TD15 Models V WAVEFORMS 5 1 General VI TD PARTS LIST 6 1 General 6 2 Ordering Parts 6 3 Retu...

Page 3: ...n between Monitors 2 1 2 2 Front and rear view of TD23 Monitor 2 3 2 3 Front and rear view of TD12 and TD15 2 4 4 1 Test Equipment lead placement for selecting R212 4 2 5 1 Circuit board component location and intercabling diagram 5 4 6 1 Schematic TD series 6 11 ii ...

Page 4: ...ith or without studs for versatile mounting configuration 1 2 ELECTRICAL SPECIFICATIONS VIDEO AMPLIFIER Input impedance Input connector Input level Low Frequency tilt DC restorer Gray scale Bandwidth Rise and Fall time SYNCHRONIZATION Internal Vertical retrace Blanking Line rate Field rate RETRACE TIME Horizontal Vertical DISPLAY Picture tube Center resolution Geometric Distortion 10 K Hi Z 75 Low...

Page 5: ... Radiation This monitor complies with the Federal Regulation for Radiation as required by the Radiation for Health and Safety Act of 1968 and as implemented by title 21 subchapter J of The Code of Federal Regulations These regulations place certain requirements on manufacturers dealers and distributors of products which can emit X rays under some conditions of operation or failure Critical compone...

Page 6: ...essible to view when the product is fully assembled for use Each monitor is supplied with an extra label attached to the CRT The user will remove this label and use it as stated above 1 4 2 Power Requirements The TD monitor is designed to operate and meet radiation requirements when operated within the respective AC input power specifications Radiation testing is performed at the maximum specified...

Page 7: ...ed near any heat generating sources such as heating vents and heat radiating equipm nt since this may cause the monitor to overheat 2 5 CABLE TERMINATION The two video input connectors J1 and J2 on the rear panel are wired in parallel The video cable is connected to the video input connector and is terminated by positioning the video termination switch Sl to the 75Q position If the video signal is...

Page 8: ...INITIAL TURN ON PROCEDURE The TD monitor was tested and aligned before shipment and should not require further adjustment after installation The following procedure is recommended for turning on the monitor for the first time 2 2 1 2 Connect the monitor to a 120 VAC 60Hz power source Connect a video cable to video input connector at rear of chassis 3 Set the video termination and differential inpu...

Page 9: ...tness Control 1 111111 111111 II I I T J EL C TM iJOCK OOl lOf etW 1t 11 Usu s lMC AlU II AA T 1MsmE I IEHrtSlltY T6 jit iElMC P ItSUIf L Figure 2 2 Front and Rear view of TD 23 monitor IMlOlS Contrast Control 2 3 ...

Page 10: ...I 1015 Figure 2 3 Front and rear view of TD12 and TD15 2 4 ...

Page 11: ...y response The video signal is ac coupled to the base of QlOs QlOs with Ql06 forms a compound series feedback stage This configuration provides a high input impedance and a low output impedance to drive emitter follower Ql08 It also has a voltage gain of 9 The output signal from Q106 is coupled to the base of Ql08 and its base is biased by the keyed clamp transistor Ql07 The function of the keyed ...

Page 12: ...pper CllS is used to remove the 3 5SmHz color burst signal from the back porch of the horizontal pulse Ql14 is turned on when triggered by the leading edge of the sync pulse and is turned off by the trailing edge of the sync pulse This on off action of Ql14 results in a negative going composite sync signal of approximately l3 5V p p at its col lector The composite sync signal is sent through a ver...

Page 13: ...ver for the vertical output amplifier It presents a high imput impedance in shunt with RIS7 to prevent loading of the wave shaping network across which the sawtooth waveform is shaped It also provides a low output impedance and high current gain to drive the base of the vertical amplifier Ql The positive going sawtooth waveform at Ql17 emitter is fed back through the resistive voltage divider of R...

Page 14: ...zontal output stage has three main functions to supply the yoke with the correct horizontal scanning currents develop 18 kV for the CRT anode and DC voltage for the CRT bias focus and accelerating grids Q3 acts as a switch which is turned on or off by the rectangular waveform on the base When Q3 is turned on the supply voltage plus the charge on C158 causes yoke current to increase in a linear man...

Page 15: ... ground This will shut dO T the high voltage supply of the monitor and prevent X radiation R212 is a selected resistor for replacement of R212 see section 4 2 that enables Q128 to conduct when the 55 volt supply exceeds 59 V lV 3 6 AUTOMATIC FREQUENCY CONTROL The function of this circuit is to compare the phase frequency of the hori zontal oscillator with the incoming sync signal and generate a DC...

Page 16: ...o provide a low output impedance Approximately 7 volts is applied to the base of Q127 through a divider network of R209 and 211 A reference voltage from zener diode VRl04 is applied to the emitter of Q127 If the output voltage changes an error current is generated through Q127 This error current modulates the base current of Q125 Since Q2 is driven by Ql26 in a darlington configuration output driv...

Page 17: ...istor decade box across the male molex pins for R212 and set the decade box for 300n resistance 4 Plug the monitor AC plug P1 in to a 0 140 V variac and set the variac voltage control for 0 volts 5 You are going to determine what value of R212 that causes HV shutdown loss of raster when the B voltage is 59V lV a Turn on the monitor and place the brightness and contrast controls in the center of th...

Page 18: ... 0 140V REVISION LEVEL IDENTIFIER 0 01 rQ i2 9 R 21 J C160 II IID RI QI21 RIIS U CI17 0 CI34 1 i 1 3 I 6 A133RI3S 0 fBIi II fC i 4Ol I Rla7 I Qlle RISO r I I II I II i ia N Figure 4 1 Test Equipment Lead Placement for Selecting R212 AC LINE CORD FROM TO MONITOR ...

Page 19: ...olding cabinet back and remove back from set Discharge CRT HV anode to chassis ground and dis connect it from CRT Disconnect CRT socket deflection coil plugs brightness and contrast control plugs Remove screws holding chassis to cabinet bottom Remove chassis from cabinet 4 5 2 TD12 and TD15 Models Remove input signal cable from input panel Remove screws holding cabinet back and remove it from set ...

Page 20: ...dure to install CRT 4 6 2 TD12 and TD15 models Follow chassis removal procedures in section 4 5 2 Discharge CRT HV anode directly to ground and remove anode lead from CRT Dis connect CRT socket and deflection coil plugs On TD12 models remove screws holding mask to frame and tilt mask upward Remove CRT mounting screws and lift CRT out of frame Do Not lift CRT by the neck On TD15 models pull mask ou...

Page 21: ...NERAL The waveforms shown on the following pages were taken using a crosshatch video input signal applied to J1 The video termination switch 51 is in the 75Q position and the differential input switch 52 is set to the OFF position 5 1 ...

Page 22: ...P P QI06 EMITTER 100mV cm 2ms cm lSOmV P P Ql13 EMITTER 2V cm 200ps cm 6VP P Q116 ANODE 2Vfcm 2ms cm SV p p Ql05 BASE lV cm 2ms cm 2SV P P ElOl COLLECTOR 5V cm 2ms cm SV p p Ql14 COLLECTOR 5V cm 100ps cm 13 5V P P Ql19 EMITTER 5V cm 10ps cm 8V P P ...

Page 23: ...V P P Q1 EMITTER 2V em 2ms em 8VP P Q3 COLLECTOR 100V em laps em 520V p p JJUNCTION R173 C133 2V em lOlls em 7 6V P P Q129 COLLECTOR 50V em lOlls em 150V P P Q3 BASE 5V em lOps em 14V p p J105 1 1 11015 TOP WAVEFORM 20V em DC 78V DC BOTTOM WAVEFORM IV em AC 1AV ripple 5 3 ...

Page 24: ...IM1015 5 4 REVISION LEVEL IDENTIFIER Figure 5 1 Circuit Board Component Location and Intercab1ing Diagram ...

Page 25: ...he serial number plate and if applicable the schematic reference number listed in the parts list Orders for these parts should be sent to Ball Electronic Display Division P O Box 43376 St Paul Minnesota 55164 For rapid service Telephone area 612 786 8900 or TWX area 910 563 3552 6 3 RETURNING PARTS When the monitor requires service or repair in accordance with the enclosed warranty return the unit...

Page 26: ... an be this the asterick replaced The use of substitute components which do not have the same characteristics as the original components may cause excessive x radiation 6 5 PWA IDENTIFICATION The PWA Printed Wiring Assembly part number has a 6 002 XXXX prefix The last four digits of the assembly number is stamped on the component side of the board and its location is indicated in figure 5 1 Do not...

Page 27: ... dipped mica 47 SOY electrolytic 22 10 200V mylar 22 10 200V mylar 1 10 400V mylar 200pF 5 SOOV dipped mica 100pF 5 SOOV dipped mica 002 20 1000V ceramic disc r n I n O _ ___ 1 VVL r LV1 lUUUV ceramlC OlSC 1 10 200V mylar 01 2Q 100V ceramic disc ls 10 200V mylar 001 20 1000V ceramic disc 02 20 sOOV ceramic disc 680pF 5 300V dipped mica 0022 10 ZOOV J mylar 001 10 200V mylar 1 20 1OOV ceramic disc ...

Page 28: ...68 10 1600V mylar PWA 0860 4 7 160V electrolytic 1 10 200V polycarbonate PWA 0858 0860 1 2 10 100V polycarbonate PWA 0859 2pF 230V arc gap 001 20 1000V ceramic disc Not used 20pF 5 SOOV dipped mica DIODE D0438 D0410 D0410 D0467 Not used D0410 Not used Not used D0403 D0410 D0410 D0410 D0410 Not used IN4001 D0410 D0447 D0403 Not used Not used D0403 D0436 D0410 BEDD PART NUMBER 1 012 2195 1 012 2212 ...

Page 29: ... TRANSISTOR Q1 2SD199 1 015 1176 Q2 DTS410 78 85 0410 Q3 DTS402 78 85 0402 Q101 2N4124 1 015 1139 Q102 2N4124 1 015 1139 Q103 2N4124 1 015 1139 Q104 Not used Q105 2N4124 1 015 1139 Q106 2N3906 1 015 1145 Q107 2N4124 1 015 1139 Q108 2N4124 1 015 1139 Q109 2N4124 1 015 1139 n11f 1 MPS 6565 1 015 1185 Q111 MPS 6565 1 015 1185 Ql12 2N3906 1 015 1145 Ql13 Not used Ql14 fPS A16 1 015 1193 Ql15 2N4124 1 ...

Page 30: ...1 2W Var 10K 30 1 2W composition contrast Var 100K 30 1 2W composition brightness 500M 15 6W deposited carbon Not used Not used 33K 22K 3000 3000 330n 510n 33K 22K 12K 3K Not used 56n 1 2W 1 3K 5 1K 15K 2K 2K 150n 51n 1 2K 3 3K 3 3K 1 5K lOOn Not used 470n 15K 3 9K 47K 10n 1 011 2442 1 011 2243 6 004 0660 6 004 0659 1 011 2456 70 16 0333 70 16 0223 70 16 0301 70 16 0301 70 16 0331 70 16 0511 70 16...

Page 31: ...old adj 6 8K lOOK 180K Var 50K 20 1 8W composition vert height adj 33K Var 10K 20 1 8W composition vert linearity 10K 15Q 3 3K 1W composition 15K 33d 2 lW composition 47K 1K 2 7K 33K 10K 1K 1 2K 8 2K lOOK 47K 47K 750Q 1 2W 10M 4 7K 1 011 2445 70 16 0101 70 16 0121 70 16 0150 70 16 0101 1 011 2424 1 011 2274 70 16 0122 70 16 0101 70 16 0624 70 16 0332 70 16 0272 70 16 0104 70 16 0123 70 16 0471 70 ...

Page 32: ... 2W 23 7K 1 1 2W metal film Not used 3 57K 1 1 2W metal film Selected minimum resistance 300rG 12K 2 4K 360K 22rG 1 2W 6 8K 2 2rG 2W wirewound Var 2 5M 20 1 8W composition focus adj 33K 1 2M 1 2W 47K 1 2W 1 2rG 2W wirewound 47K 1 2W 2 2M 1 2W l 8K 70 16 0272 70 16 0623 70 16 0683 70 16 0473 70 16 0153 70 16 0473 70 16 0272 1 011 5325 70 16 0123 70 16 0121 70 16 0472 70 16 0222 70 16 0103 70 16 062...

Page 33: ...D 12 T101 Horizontal driver U101 V1 VR101 VR102 VR103 VR104 VR105 INTEGRATED CIRCUIT MC3340 ZENER DIODE Refer to 1 014 XXXX number on CRT IN4408 15V Z0475 6 2V Z0475 6 2V Z0493 6 8V Z0443 56V MISCELLANEOUS Assembly PWA TD 12 Assembly PWA TD 23 Assembly PWA TD 15 Assembly power supply TD 23 1 011 2256 70 16 0331 70 16 0332 70 16 0621 70 16 0151 1 011 7000 85 73 0278 85 73 0278 6 004 0659 1 018 0255...

Page 34: ... 0433 Assembly heatsink TD 23 6 003 0361 Assembly heatsink TD12 15 6 003 0379 Assembly cabinet TD 23M 6 001 0198 Assembly cabinet TD 23MV 6 001 0197 Assembly cabinet TD 12MV 6 001 0103 Assembly cabinet TD 12M 6 001 0104 Assembly cabinet TD 15M 6 001 0111 Assembly cabinet TD 15MV 6 001 0109 6 10 ...

Page 35: ...VALUES ARE IN MICROFARADS 2 0 DENOTES PWA EDGE CCN lECTOR 3 DENOTES JACK AND PLUG CCN lECTOR 0 DENOTES SOLDERED CCN lECTIONS lJ R227 AND C159 IS PAAT OF CRT SOCKET I i EU I I 2 FETY AND X RADIATION FOR CONTINUED PROTECTION USE CNLY TeE EXACT REPLACEf ENT PARTS DO NOT SUBSTITUTE PARTS OR t ODIFY THE CIRCUIT REFER TO SECTION 6 4 OF SERVICE MANLlA L fJ FOR SELECTlCN E ROCEDURE REFER TO SECTlCN 4 2 OF...

Page 36: ... 2 CV I j 0 VA c 0 11 R_E_D_I B L K 220 v c OOY j I 1 2 1 MP5AI P CRIIO II 00410 3LK pIi CZ I II 1 O lO EL 6 12 0 1 _ I ___ __ 3_ I t BLUNt 1 1 RN YEL 100 VAC 100V 5 0 I 12 0 VI c 1 I t ii 9p RN I r BLu 11 OFF ON PART OJ 4 4 Ii I I I X TO r L 4 t 1 ci271 r I 2 2 i 19KI 1c t C 14J I I I 2 1 I I 48 1 I I C b L t I 403 33 K 1 LO V 4 i 22 c 5 Vi 2 2 1 I r 1 2 VI L 2 5 2 2 W 18 KV CRI 1 I I R5 1 SOOM r...

Page 37: ...odule if applicable _______________________ 3 Cause of failure if readily available _____________________ 4 Approximate hours days of operation to failure_________________ 5 Failure occurred during Final Inspection Customer Installation Field Use 6 Personal Comment Customer________________ Address________________ Signed__________________ Date ___________________ Ball Electronic Display Division P ...

Page 38: ...t you notified him on a certain date and that he failed to make the necessary inspection After you have ascertained the extent of the loss or damage ORDER THE REPLACEMENT PARTS OF COMPLETE NEW UNITS FROM THE FACTORY We will ship to you and bill you for the cost This new invoice will then be a part of your claim for reimbursement from the Transporta tion Company This together with other papers will...

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