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Содержание TV-120

Страница 1: ...E MANUAL TV 50 90 120 Data Display Monitor 5 017 1035 REV A Nov 1977 Electronic Display Division BALL ELECTRONIC DISPLAY DIVISION P o BOX 43376 ST PAUL MINNESOTA 55164 TELEPHONE 6121786 8900 TWX 910 563 3552 ...

Страница 2: ...STALLATION 2 1 Mechanical 2 2 Electrical 2 2 1 DC Input 2 2 2 AC Input 2 3 Location 2 4 Grounding Techniques 2 5 Input Signal Lead Routing OPERATION 3 1 General 3 2 Brightness Adjust 3 3 Contrast Adjust SERVICE DATA THEORY OF OPERATION 4 1 Video Amplifier 4 2 Vertical Deflection 4 3 Horizontal Deflection 4 3 1 Low Level Stages 4 3 2 High Level Stages 4 4 Low Voltage Supply ADJUSTMENT AND MAINTENAN...

Страница 3: ...0 120 a Tilt with Bonded Panel Dimensions Interface Connections Horizontal Drive Processing and Timing Chart Schematic for Raster Shifting TV 50 Schematic TV 50 Parts List Waveforms and Component Layout TV 90 120 12V Schematic TV 90 120 12V Parts List Waveforms and Component Layout TV 90 120 15V Schematic TV 90 120 15V Parts List Waveforms and Component Layout TV 90 120 AC Schematic TV 90 120 AC P...

Страница 4: ...PART 1 OPERATING DATA This section of the service manual provides data concerning the specification installation and operation of the TV 50 90 and 120 Data Display Monitor IMI035 1 ...

Страница 5: ...electronic package has been miniaturized for compati bility with small volume requirements 1 2 ELECTRICAL SPECIFICATIONS 1 2 1 Input Data Specification PWB Edge Input Connector Viking 2VKlOS 1 2 Ampheno1 225 21031 101 Cinch 250 10 30 170 BBRC No 1 039 0119 Video Input Amplitude Low High 0 0 0 4 0 0 volts 4 0 1 5 volts Video Pulse Width Vertical Drive Rate Horizontal Drive Rate Rise and Fall Times ...

Страница 6: ...AI03 2 VERTICAL RETRACE IS INITIATED AT ts WITHOUT DELAY 3 H PERIOD OF ONE LINE 63 S 1 3 4 V PERIOD OF ONE FIELD 16 4ml MIN TO 20 4ms MAX 5 VIDEO PULSE WIDTH SHOULD BE SOns MIN TABLE I t3 Vstl TIMING FOR CENTERED HORIZONTAL TABLE 2 c Vs ts TIMING FOR CENTERED VERTICAL VIDEO AS FUNCTION OF V BLANKING WIDTH VERT ICAl VIO O BLANKING VIDEO AS FUNCTION OF H BLANKING WIDTH HORIZONTAL VIDEO BLANKING WIDT...

Страница 7: ...00 and burst fre quency is then increased to the point where resolution of the lines is just discernible Set reference black to visual cutoff with brightness con trol and reference white to the indicated fL with contrast control Geometric Distortion Specif cations IM103s On Axis Scan Non Linearities No picture elements displaced from true position by more than 2 of active raster height Measurement...

Страница 8: ...male contact Molex 4529T Signal and power for DC models 10 contact board edge connector Refer to paragraph 1 2 1 for details WARNING ANY POWER TRANSFORMER MUST BE WELL REMOVED FROM CRT AND OR BE OF LOW EXTERNAL FLUX FIELD DESIGN 1 3 MECHANICAL SPECIFICATIONS Table 1 1 and figure 1 2 lists the mechanical specifications for the TV 50 90 120 Data monitor For further information contact our General Sa...

Страница 9: ...5 75 146 13 4 6 1 2 030 0400 TV120 DC 5 9 03 229 11 40 289 11 84 301 5 75 146 11 0 5 0 2 030 0398 TV120 AC 5 9 03 229 11 40 289 11 84 301 5 75 146 13 4 6 1 2 030 0398 TV120 DC 71 9 00 229 11 40 289 11 84 301 5 75 146 11 01 5 0 2 030 0399 TV120 AC 71 9 00 229 11 40 289 11 84 301 5 75 146 13 4 6 1 2 030 0399 TV120 DC 10 8 92 227 11 40 289 11 84 301 5 75 146 11 01 5 0 2 030 0397 TV120 AC 10 8 92 227 ...

Страница 10: ... A I j I I B TV 90 9 INCH DIAGONAL C 4 1 TV 120 12 INCH DIAGONAL IT I A J B _ _ _ _ _ L t C f 1 6 32 THO MTG HOLES 4 Zi4 188 X 500 REND MTG SLOT 4 5 X 13 6 32 THO MTG HOLES THRU PLATE 4 Figure 1 2 TVSO 90 120 00 tilt with bonded panel dimensions ...

Страница 11: ...spective AC or DC input power specifications Radiation testing is performed at the maximum specified input voltage for AC powered mon itors or at 130 VAC for those nominally powered at 110 120 VAC 60 Hz DC powered monitors have an additional requirement because the DC source is usually regulated and subject to failure of the series pass element This can result in an appreciable increase in the ano...

Страница 12: ...perate the power supply on 120 VAC take the connector shell of P2 marked with 120 and insert it in to J2 Conversely to operate at 220 240 VAC insert the connector shell of P2 marked with 240 into J2 AC power is supplied to the unit via Jl Jl is a 4 contact female connector shell Molex 03 06 2041 with male contacts Molex 45295 2 3 Location The TV 50 90 120 models shall not be located in an area tha...

Страница 13: ...M A2 P S GND 2 TO 12 6VAC OF T I TO 12 6VAC OF TI 8 VIDEO INPUT 7 OPTIONAL 12VII5V DC INPUT 6 HORIZ DRIVE Figure 2 1 Interface Connections LIBfthL VERT CHOKE I YEL VERT L2A CHOKE VERT 4 L2A DEFL COIL 102 VERT PiN J DEFL COIL PIN 4 5 ARC 4 OPTIONAL EXTERNAL 3 BRIGHTNESS CONTROL 2 I HORIZONTAL GRD N I N ...

Страница 14: ...d and JlOI 5 or EllO can be connected separately to the frame or CRT aquadag ground JIOl l or El02 must then be connected either to the frame or system ground To isolate the frame from system ground JlOI 1 and JlOI IO should be wired separately to system ground Add another wire to JlOI l and connect it and JlOl 5 to the frame aquadag ground through a capacitor The frame cannot be completely isolat...

Страница 15: ... then be adjusted for visual cutoff of the raster A maximum contrast ratio can now be obtained when video is applied 3 3 CONTRAST ADJUST The video amplifier is designed to operate linearly from 65 to 2 5 V signal input The contrast control should be adjusted to the point where defocusing sets in and then backed down slightly This occurs at a lS 20V p p video swing at the CRT cathode for the TV90 l...

Страница 16: ...T II SERVICE DATA Section 4 through 6 and the supplement are for qualified service personnel The TV 50 90 120 has no end user serviceable parts inside Refer service to qualified service personnel IM1035 4 ...

Страница 17: ...f AIOI Cl03 and Cl04 These capacitors charge exponentially until the voltage at the anode of Ql02 exceeds its gate voltage at which time QI02 becomes essentially a closed switch allowing a rapid discharge through LIOI The rate of charge or frequency is adjustable by AIOI The oscillator is synchronized by a negative pulse coupled to its gate from the vertical drive pulse applied externally at JIOI ...

Страница 18: ... In adddition these stages provide a horizontal video centering adjustment by delaying retrace with respect to the horizontal drive pulse The drive pulse is presented to Q10S via J10l 6 The base circuit of QlOS in cludes a clamp and a differentiator which makes Q10S output insensitive to drive pulse amplitude and width changes The only requirement is that pulse amplitude be of 2 S volts minimum an...

Страница 19: ... I I I 8 dl I 18 Idl I I I Id I I I I d I I I I IdZ I I d2 I I I I I I if t I J I fl t dl dl VARIABLE DELAY AI03 PIN 2 3 CIIZ dl d Z VARIABLE DELAY AI03 PIN 1 3 CII2 d2 8 A 25 f dl ONE SHOT OUTPUT 0106 POSITIVE FEEDBACK RIZ8 ONE SHOT SLAVE 0107 Figure 4 1 Horizontal Drive Processing and Timing Chart d2 8 25 t J fl dl TO 0108 ...

Страница 20: ... linear manner and moves the beam from near the center of the screen to the right side At this time the transistor is turned off by a polarity change of TlOl which causes the output circuit to oscillate A high reactive voltage in the form of a half cycle negative voltage pulse is developed by the deflection coil inductance and the primary of T2 The peak magnetic energy which was stored in the defl...

Страница 21: ...e it is rectified by CR2 CRl13 and CR114 to produce rectified voltage of approximately l2KV 400V and 32V respectively l2KV is the anode voltage for the CRT while 32V is used for the video output stage and the 400V source is used for G2 and G4 voltages for the CRT 4 4 LOW VOLTAGE SUPPLY The TV 90 120 models are available with an internal power supply This supply utilizes an integrated circuit volta...

Страница 22: ...ol Adjust vertical height control RllO for desired height 5 3 FOCUS ADJUST Adjust focus control R122 for best overall focus of the picture Usually the center and corners of the screen do not focus at the same setting and a compromise must be made 5 4 CENTERING ADJUST If the raster is not properly centered it may be repositioned by rotating the ring magnets behind the deflection yoke The ring magne...

Страница 23: ...ction coil This option precludes the need for using the centering rings for non standard centering which would result in disturbance of geometry and focus 1 Raster pull down Refer to figure 5 1 Add Rl13 from J102 4 to ground in holes provided Value to be selected for desired amount of pull down 2 Raster pull up Refer to figure 5 1 5 2 Replace C106 with a jumper wire Remove jumper wire from J102 3 ...

Страница 24: ...35 TO JI02 2 CI06 TO JI02 4 QI04 MJE3055 JO JI02 1 RII4 TO JI02 3 TP5 1 5K 1 2W RII3 RASTER PULL DOWN TO JI02 2 TO JI02 4 TO JI02 1 ___ JTO J102 3 RASTER PULL UP Figure 5 1 Schematic for Raster Shifting 5 3 ...

Страница 25: ...ts outlets When it is necessary to order spare or replacement parts from BBRC Electronic Display Division E D DIV include the part description part number model and serial number data of the monitor as listed on the 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...

Страница 26: ...er will be notified of the extent of repairs required and the cost The unit will be repaired and returned upon agreement 6 4 WAVEFORMS The waveforms on the component layout were taken with 1 5 V peak to peak cross hatch signal applied to the monitor These waveforms can be used as a check point to localize problems to a specific circuit area The waveform photographs indicate the actual peak amplitu...

Страница 27: ...O PINS 1 5 AND 10 OF JIOl PWB IRCUIT GROU DS FOR PINS 1 AND 5 OF JIOl ARE CONNECTED TO GETHER BY AJUIV lR WIRE ON THE BOARD AND ARE WNNECTED TO CHASSIS GROUHD VIA AWIRE FROM EllO THE DATA DISPLAY um IS COHNECT D TO THE SYSTEII GROUND THROUGH PINS 1 AND 10 OF JIO FOR NOH STANDARD GROUNDING TECIINIIIIIES REFER TO SECTlOil 2 Of THE SERV ICl IlANUAl DENOTES HEATSIIIK 9 DIPPED PliCA i D CERA HC DISC M ...

Страница 28: ...IIY 1 012 2255 R106 470 70 16 0471 Cl20 02t201 500v CO 1 012 0780 RI07 360 70 16 0361 C121 501 soy E 1 012 2157 RIOB lOOK 70 16 01011 C122 022tlOI 2SOY PP 1 012 2297 RI09 180 1 011 2252 Cl23 10 25V E 1 0U 2273 R110 VARI 250t201 CO VERT HGT 70 89 0251 C124 10 25V E 1 012 2273 Rlll 12 11211 1 011 2224 Rll2 IS 11211 1 011 2226 DIODE Rm NOT USED R114 1 5K 11211 1 0U 2274 Jg CRl H510 1 021 01124 R115 N...

Страница 29: ... AND S Of JIOI ARE CONNECTED TO GEIIIER BY A JUMPER WIRE ON THE BOARD AND ARE CDNNECT D TO CHASSIS GROUND VIA A WIRE FRDM EIlO THE DATA DISPLAY UNIT IS CONNECTED TO TilE SYSTEM GROUND THROUGH PINS I MiD 10 Of JIOI fOR CO STANDARD GROUNDING TECHNIQUES REFER TO SECTION 2 OF THE SERVICE IIANlIAL Il NOTES HEATSINK 9 1 DIPPED ICA CD CERAMIC DISC MYLAR 1 fR0lYT IC AXIAL EllCTROlYTIC RADIAL PP POLYPROPYL...

Страница 30: ...11 2224 X X X X X X X Cl19 lOt101J l00v IIY 1 012 2255 X X X X X X X RIB NOT USED C120 021201J 500v CD 1 012 0780 X X X X X X X R114 I 5K1 11211 1 011 2274 C121 SOJ SOv E 1 012 2157 X X X X X X X RI15 NOT USED C122 033 lOlJ 25OV AY 1 012 2298 X X X X X X X R116 62K 70 16 0623 C123 10J 2Sv E 1 012 2273 X X X X X X X RI17 VARJ 1001 201J CO BRT ADJ 1 011 S435 Cl24 10J 25v E 1 012 2273 X X X X X X X R...

Страница 31: ...SIGNATION USED Rm Cill 1 PROTECTIVE ARC GAPS AN INTEGRAL PART OF TIE PRINTED MIRE BOARD THE PWB CIRCUIT GROUNDS ARE BROUGHT OUT SEPARATElY TO PINS L 5 AND II OF JI01 PIID CIRCUIl GROUNDS FOR PINS I AND 5 OF JIOI ARE CONIIECT18 GETHER BY A JlJ1PlR WIRE ON TIE BOARD AND ARE CONNECTED TO CHASSIS GROI VIA AWIRE FROf I EllO THE DATA DISPLAY UNIT IS COIIHfCTED TO THE SYSTEPI GROUND THROUGH PINS AND 10 O...

Страница 32: ...Y 1 012 2255 Rm 1I5K 11211 1 0U 22711 Cl20 02t20 500v CD 1 012 0780 R115 NOT USED Cl2l so 5OV E 1 012 2157 RU6 62K 70 16 0623 C122 022tl01 25OV PP 1 012 2297 R117 YAR 100K t20 co BRT ADJ 1 011 5q35 C123 lOt10 l00v IIY 1 012 2255 RI18 3OK 11211 1 011 2305 e124 NOT USED R119 9 1K 70 16 0912 R120 8 2f t 70 16 OS25 DIODE RI21 lOOK 70 16 0104 CRI H510 1 021 0424 X R122 YAR 2 511t20 CO FOC ADJ 1 G11 556...

Страница 33: ...TN PHB CIRCUIT GRou DS ARE BROOGHT OUT SEPARATElY TO PINS 1 S AIIII 10 OF J10 PWB CIRCUIT GROUNDS FOR PINS 1 AND S OF JI01 ARE CONNECTED TO GETH R BY AJIJII ER VIRE ON THE BOARD AIID ARE CONNECTED TO CHASSIS GROUIIO VIA A VIRE fROll EllO TN DATA DISPlAY UHIT IS COWCTED TO TI SYSTEII GROUItD THR0U6H PINS 1 AND 10 OF JI0l fOR NON STAIIDARIl GROUIIOJlIG TECHNIQUES R FER TO SECTlOII 2 OF THE SERVICE I...

Страница 34: ...16 0471 Cl18 220 2SV E 1 012 21S9 X X X X R107 360 70 16 0361 C119 10tl0 J l00v flY 1 012 2255 X X X X RI08 lOOK 70 16 0104 C120 02120 500V CD 1 012 0780 X X X X RI09 300J 1 2 1 1 011 22S7 Cl2l SO SOY E 1 012 2157 X X X X R110 VARJ 25Ot20 l CO VERT HGT 70 89 02S1 C122 022tlOII 25OV PP 1 012 2297 X X X X Rlll 121 11211 1 011 2224 C123 IOt1011 l00v ltV 1 012 2255 X X X X Rll2 151 11211 1 011 2226 C1...

Страница 35: ...ge supplement section will identify the mode1 s affected by revision level of the final assembly Section 1 through 6 represents the TV 50 TV 90 and TV 120 at the B reV1Slon level The revision level of your unit can be identified by the revision letter following the unit model number on the serial number tag The high voltage transformer assembly PWB assembly power supply module and frame assembly a...

Страница 36: ...ble _____________________ 2 Part failed Name and Number ______________________ 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 Disp...

Страница 37: ...at you notified him on a certain date and that he failed to make the necessary inspecV on 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 wil...

Страница 38: ...zation must be obtained and confirmed in writing by the Customer Service Department before returning the monitor to the factory Under this warranty Ball Electronic Display Division will provide the necessary components required by the customer to correct the monitor in the field The components will be shipped prepaid on a billing memo which will be cancelled upon receipt of the defective component...

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