SERVICE MANUAL TV -50/90/120 Data Display Monitor 5-017-1035 REV. A Electronic Display Division BALL ELECTRONIC DISPLAY DIVISION Nov., 1977 P.o. BOX 43376 • ST. PAUL.
IM1035 CONTENTS Page PART I ILLUSTRATIONS AND TABLES iii OPERATING DATA 1 Section GENERAL INFORMATION 1.1 General Description 1.2 Electrical Specifications 1.2.1 Input Data Specifications 1.2.2 Data Display Specifications 1.2.3 Display Specifications 1.2.4 Geometric Distortion Specifications 1.2.5 Power Requirements 1.3 Mechanical Specifications 1.4 Environmental Specifications 1.5 Human Factors Specifications 1-3 1-3 1-4 1-4 1-4 1-7 2. INSTALLATION 2.1 Mechanical 2.2 Electrical 2.2.1 DC Input 2.
IMI035 CONTENTS (Cont.) Page Section ADJUSTMENT AND ~~INTENANCE 5.4 Centering 5.5 Troubleshooting Guide 5.6 Raster Shifting 5-1 5-1 5-1 5-2 6 SERVICE DATA General 6.1 Ordering Parts 6.2 Returning Parts 6.3 Waveforms 6.4 Board Assembly Part Number 6.5 6-1 6-1 6-1 6-1 6-2 6-2 7 SUPPLEMENT 7.
IMI035 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.
IM1035 Section 1 GENERAL INFORMATION 1.1 GENERAL DESCRIPTION The TV 50, 90 and 120 series monitor is a raster scan display designed specifically for data terminals. They are designed for high quality display of alphanumeric dot characters. The data monitor accepts video, horizontal drive and vertical drive as separate TTL level signals, eliminating stripping circuits in the data display unit as well as mixing circuits in the external logic interface.
IMl035 lO T040J.lS~ FF~TRA~CE ~----------------H HORIZONTAL 7ps DRIVE]-tl VIDEO t2 ~I l__________ - - - -.....[HIGH:+4±1.5V , i- - 1 LOW: O+O.4V -O.OV t2+7 -r~-B-L-A-N-KI-N-G---- H ~HIGH UNBLANK .......:--IOJ.ls--t~ ....-._t---VIDEO PULSE---~ ... MINIMUM INFORMATION LOW ~ """E--TR--ACE-'-- V - - - - . . t · 1 I VERT'CAL1600 ~ ~ DRIVE ~s 50JlsMIN. 1.4msMAX. f,HIGH '--________ ~ LOW t5 V IDEO -r. UNBLANK ----e-L-A-N-K-I-N-G--- V -HIGH ...~--- 850J,Js - __;..~..
IM103s Video Amplifier: Bandwidth Rise and Fall Time (10 to 90% amplitude) Storage Time 12 MHz - 3db (Class A mode) Less than 3sns (linear mode) lsns max (linear mode) Retrace Time: Vertical Horizontal 1.2.
IM1035 1.2.5 Power Requirements 120V AC Models Voltage: Frequency: Power: Fuse: Current: Fu~e: 220 or 240 VRMS ±10% 49-6lHz 24 Watts Nominal 2A 105-130 VRMS ±10% 49-6lHz 24 Watts Nominal 2A DC Models Voltage: Ripple: 220V/240V l2VDC 15VDC 15± 0.2 VDC l2±0.2 VDC 100 mV p-p for refresh synchronous with power freq. 10 mV p-p for refresh non-synchronous with power freq. 750 rnA DC nominal 900rnA DC nominal 1.0 A DC maximum 1.
* MODEL I ~ V1 TILT A DIMENSIONS (Inches/Millimeters) B c: D WEIGHT Lbs/kg OUTLINE NO TV50 DC OU 4.56/116 5.12/130 8.62/219 4.56/116 3.0/1.4 2-030-0319 TV90 DC 0° 7.00/178 9.50/241 9.75/248 6.16/156 6.8/3.1 2-030-0401 TV90 AC 0° 7.00/178 9.50/241 9.75/248 6.16/156 10.1/4.6 2-030-0401 TV90 DC 10° 6.90.175 9.50/241 9.75/248 6.16/156 6.8/3.1 2-030-0401 TV90 AC 10° 6.90/175 9.50/241 9.75/248 6.16/156 10.1/4.6 2-030-0401 TV120 DC 0° 9.06/230 11.
IM103S DIMENSIONS TV-50 5 INCH DIAGONAL n y ""( ] A j ~ I I I =--.. ;1: ~ B --..- TV-90 ,.. \ 6·32 THO MTG HOLES (4) ~ 9 INCH DIAGONAL ---- C ------41 .188 X .500 REND MTG SLOT (4)' 5 X 13 TV-120 12 INCH DIAGONAL IT ..... I Zi4 A _-_- _= ~~~:::'-=--B- _-= J --':~ _::.L....... t------ Figure 1-2 C ----f( ...
IM1035 1.5 HUMAN FACTORS SPECIFICATION X-Ray Radiation The TV 50, 90 and 120 Data monitor complies with the Federal Regulation for Radiation Control as required by the Radiation Control for Health and Safety Act of 1968, and as implemented by Title 21, Subchapter J of the Code of Federal Regulation. These regulations place certain requirements upon manufacturers of products which can emit x-rays under some conditions of operation or failure. This includes CRT data display monitors.
IMl035 Section 2 INSTALLATION -..J 2.1 MECHANICAL The TV 50 data monitor has four 6-32 clinch nuts for mounting the unit. The TV 120, 0°, 5°, 7~0 and 10° monitors have four 6-32 clinch nuts on the frame for installation purposes. The TV 120, 15° monitor uses three 6-32 clinch nuts for mounting. The TV 90 data monitor has four .188X.sOO radius end slots for installation. Refer to figure 1-2 2.2 2.2.1 ELECTRICAL DC Input The TV 50/90/120 DC models can be operated from either a 12 VDC or IS VDC source.
T2A BRN T2A WHT-~iZJ ~1+--T2B BLK T2B YEL --t1~ (5)11H--T2B BLU T2B ORN--t1~ (7)11H--T2B RED L IBfthL VERT CHOKE I YEL VERT L2A CHOKE VERT 4 L2A DEFL COIL 102 VERT PiN J DEFL COIL PIN 4 QI08 JI03-----", P.S. GND -{i +15VDC FROM A2 5--ARC 2 TO 12.6VAC OF T I TO 12.
IMl035 A connection to system ground must be made at both JlOl-l and JlOl-lO. When the frame is an integral part of system ground, one of three possible ground configurations can be used. 1. When a good electrical ground connection cannot be made between the monitor frame and system ground, then JlOl-l and JlOl-lO is wired separately to the system ground. 2.
IMl03S Section 3 OPERATION 3.1 GENERAL After power, video and drive signals have been applied to the monitor, the contrast and brightness controls may be adjusted to provide the optimum display. 3.2 BRIGHTNESS ADJUST The monitor is used to display alphanumeric information. The video polarity is usually white characters on a black background. The brightness control should then be adjusted for visual cutoff of the raster. A maximum contrast ratio can now be obtained when video is applied. 3.
IM1035 PART 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.
IMI035 Section 4 THEORY OF OPERATION 4.1 VIDEO AMPLIFIER The video amplifier consists of QlOl and its associated circuitry. The incoming video signal is applied to the monitor through JlOl-8 and RlOl to the base of QlOl. Transistor QlOl has a nominal gain of 15, and operates as a class B amplifier. QlOl remains cutoff until a DC coupled, positive-going signal arrives at its base and turns it on.
IMl03S sawtooth forming network. Linearity control of the sawtooth is accomplished by coupling the output at Ql03 emitter resistively back into the junction of Cl03 and Cl04. This provides integration of the sawtooth and inserts a parabolic component. The slope change rate of the sawtooth at Ql03 output is controlled by the setting of Al02. The output at Ql03 is coupled into a resistive divider ..
I I 18 Id l I I I Id Z I n 10 - 40 n DIFFERENT IATOR CII3 RI25 I I I I Id I d, I I I , I d2 I I I ,+' I: if ~ t, I t, fl HORIZ DRIVE I : 8 "sec 8-dl~: I +II fl ONE-SHOT TRIGGER 0105 dl+d Z VARIABLE DELAY AI03 PIN 1-3 CII2 d2+ 8 A IJ : t,+d l dl VARIABLE DELAY AI03 PIN 2-3 CIIZ d2+ 8 25 t::J ~, 25 ~. f l+ d l f,+ d l ONE-SHOT OUTPUT 0106 ONE-SHOT SLAVE 0107 POSITIVE FEEDBACK RIZ8 d I : 0.5-6.0)1 lec dZ : 17" sec d.+ d Z • 17.5-23,.
IMl035 ., ""~,:,, circuitry thru TlOl. Ql07 is an inverting slave of QI06 and is driven alternately into saturation and cutoff as are all stages in the horizontal circuit. Ql07 output is transformer coupled to the output stage with phasing of TlOl chosen such that Ql08 turns off when Ql07 turns on. This allows Ql08 to turn off quickly, thus minimizing dissipation. A careful review will show that Ql08 turns off at a variable delay time after receipt of the drive pulse. This action causes retrace to begin.
IM1035 flection coils. The variable inductance allows a greater or lesser amount of deflection current to flow through the horizontal yoke and varies the width of the horizontal scan. Linearity control is provided by modifying the deflection coil voltage. During retrace, an auxi11iary winding on the f1yback transformer supplies a pulse which charges Cl19 through rectifier diode CRl12 and L102.
IMl035 Section 5 ADJUSTMENT AND MAINTENANCE 5.1 HORIZONTAL ADJUSTMENTS With a crosshatch signal applied, adjust video centering control, Al03 to center the video within the raster horizontally. Adjust Ll02 for best horizontal linearity. Do not adjust Ll02 core out farther than necessary as this causes excessive power to be consumed. Adjust Ll03 for desired width. 5.2 VERTICAL ADJUSTMENTS With the crosshatch signal applied, adjust vertical hold control AlOl to lock in the picture.
IMl035 4. 5.6 Low voltage bus incorrect (for units with a low voltage supply) AI, A2 NOTE: Low voltage supply will indicate low or "0" volts if an abnormal load is evident on the 15 volt line. RASTER SHIFTING The extra cost factory option of inserting Rl13 or R1l5 makes possible a raster shift either down or up by allowing a fixed DC current to flow in deflection coil. This option precludes the need for using the centering for non-standard centering which would result in disturbance of geometry focus.
TO JI02-2 • IMI035 CI06 TO JI02-4 QI04 MJE3055 JO JI02-1 RII4 TO JI02-3 1.5K 1/2W TP5 RII3 -- -- -- RASTER PULL DOWN TO JI02-2 . . - - - - -.......------~TO JI02-4 ---~TO JI02-1 "----.........
IMl035 Section 6 SERVICE DATA 6.1 GENERAL This section contains the replaceable electrical parts list, schematic, PWB component layout and waveforms for servicing of the TV SO, 90, 120 data monitor. If a part you have ordered has been replaced with a new part or an improved part, our customer service representative will contact you concerning any change in the part. Change information concerning the TV S0, 90, 120 units is located at the rear of the manual in the supplement section. 6.
IMl035 Unnecessary delays may be avoided when parts are returned to Electronic Display' Division using the follo~ing procedures: (1) Package the unit or part in accordance with the method of shipment. Enclose a list of the material being returned and the reason for returning it. (2) Send the unit or part, transportation prepaid, to the address stipulated for returning parts. All equipment and parts described in the warranty will be replaced, provided E.D.
1M 1035 r.£IllRAl :I01E$: LI & Ufo & VIllT U;lllSS OTlllRHIS[ SPECIFIEO 1. ALL RESISTORS I/~W. 5%. VALUES III OII11S. 2. ALL CAPACITOR VALUES IN IlICROFARADS. FOR CAPACITOR TYPES. SEE NOTE '9. 0 DENOTES JIUI PC CARD E06E COIlIIECTOR. ~. ~>-DENOTES WIINrCTIOlI TO OfF BOARD WPIPON[NlS 5. R[FERElI(E DESIGNATION NOT USlD: Rlll. RlJ5 LAST REFEREIitE OESIG~ATION USED: R13~. C12~ PROTECTIVE ARC GAPS ARE AN INTEGRAL PART OF PRINTED WIRE BOARD. ~ THE PW8 CIRCUIT GROUNDS ARE BROtIGIIT OUT SEPARATELY TO PINS 1.
• ,,' PARTS LIST TV50 REF SYI! DESCRIPTIOII BBRC PART NUMBER AlOl AlO2 Al03 RES TRIll. 6OK. VERT HOLD RES TRIll. 20K. VERT LIN RES TRIll. 2.5K. VIDEO CENTER 1-011-8006 1-011-8005 1-011-8001 CAPACITOR. FIXED. uF UNLESS HOTED CI01 CI02 CI03 CI011 ClOS ClO6 CI07 CIOB C109 CllO cm Cll2 cm ClI4 C115 C116 C117 C118 C119 Cl20 C121 C122 Cl23 C124 l00pFi51, 500V, 011 .OO5t2011 l00v, CD .22ilOll l00v, IIY .22tlOll l00v, IIY .68, SOY, E 470, lOY, E HOT USED 25, 25V, E .01t2011 1000v, CD .
1M 1035 (;lNlRAl :IOTES: LI & LI" &. /1:. VEtlT IINU:SS OTIII.RWI$[ SP[ClfIf.D ALL RfSISTORS )I~W. ',:. VALULS I~ OII1'1S. ALL CAPACITOR VALUES I~ MICROfARADS. FOR CAPACITOR TYPES, SEE IIlTE 19. DUWOlfS JIOI PC CARD EI)(,E CONNECTOR. ~. ~>-DENOII.~ CONNECTION TO OFf BOARD COI\POfl[NTS. 5. REfERENCE DESIG~ATlONS NOT USED: Rill. RIl5 LAST REFERENCE UESIGNAT lOtI USED: Rm. CI24 PROTECTIVE ARC GAPS ARE AN IlHEGRAl PART Of PRINTED WIRE BOARD. THE PWB CIRCUIT GROUNDS ARE BROUGHT OUT SEPARATELY TO PINS I.
-• PARTS LIST TV 90/120, 12V REF SYII DESCRIPTION BBRC PART HUl!BER AlOl Al02 Al03 RES TRill, 6OK, VERT HOlD RES TRill, 20K, VERT LIN RES TRill, 2.5K, VIDEO CENTER 1-0ll-8006 1-011-8005 1-011-8001 CAPACITOR, FIXED, uF UNLESS NOTED C101 l00PFt51, 500v, 011 CI02 .0051201J 100v, CD C103 .22t10IJ 100v, flY C104 .22t10IJ 100v, flY Cl05 .68J SOY, E CI06 470J lOv, E CI07 NOT USED ClOB 25J 25y, E CI09 .01t20IJ 1000v, CD CllO .02t20IJ l000v, CD C111 .01t201J 1000v, CD C112 .0022dOIJ 63Ov, flY Cll3 .
'~ . ~ .. 1M 1035 GEIiERAL IIOTlS: trHL[S~ OTIIERYIS[ SP[(IF IlD 1. ALL IIESISTORS lIQW. 51. VALUES IN ~tIIS. 2. ALL CAPAClTO!I VALUES IN PlICROFARADS. FOR CAPACITOR TYPES. SEE IIITE n DENOTES JIOI PI: CARO EDGE CONNECTOR. "woe 8>. 4. ) r. DENOTES CO:lNlCTIOH TO OFF BOARD COII'OHENTS. 5. REFERENCE DESIGNATIONS lilT USED: RlB. RllS LAST REFERENCE DESIGNATION USED: Rm. Cill PROTECTIVE ARC GAPS AN INTEGRAL PART OF TIE PRINTED MIRE BOARD.
PARTS LIST TV 90/120, ISV SYII OESCRI PTION BBRC PART NllllBER A101 A102 A103 RES TRIPI. 6OK, VERT OOLD RES TRIPI. 20K, VERT LIN RES TR I". 2. 5K. VIDEO CENTER 1-011-8006 1-011-8005 1-011-SOO1 REF USED ON 6-0020695 0688 om 0728 0730 X X X X X X X X X CAPACITOR. FIXED, uF UNLESS HOTED 100PFt51. 500v, Df't .OO5t201) 100V. CD .22t101) 10OV. IIY .22t101) 100v. IIY .68) SOV. E 470) 10V, E HOT USED 25; 2SV, E .01t201; l000v, CD .02t201; l000v. CD .01t201; 1000v. CD .022tIOl, 63OV. IIY .
IMI035 GENERAL 1I0T~'S: IJNLESS QIIIERWTSE SPECifiED ). ALL RESISTORS !I~W, 5~, VALUfS I" OII11S. 2. ALL CAPACITOR VALUlS Iii MICROFARADS. FOR CAPACITOR TYPES, SEE IIITE 19. 0 DfNOTES J101 PC C.~RD EOGE CONNECTOR. ~. -n-DENOTES CONNECIIO~ TO OFF BOARD COI1POH£NTS. 5. REfERE1ICE DESIGNATIONS NOT USED: RlB, RllS. R126 LAST R~FEREHCE DESIGNATION USED: Rm, C123 PROTECT IVE ARC GAPS ARE All INTEGRAL PART OF PRINTED VIRE BOARD. TN[ PHB CIRCUIT GRou.~DS ARE BROOGHT OUT SEPARATElY TO PINS 1. S AIIII 10 OF J10).
SYl'I DESCRIPTION BBRC PART NlI1mER Al A2 AlOl AlO2 Al03 INT CIRCUIT lAS-l515 BRIDGE RECTIFIER RES TRIPI, 6OK, VERT OOLD RES TRIPI, 20K, VERT LIN RES TRIPI. 2.SK. VIDEO CENTER 1-025-0122 1-021-0413 1-011-8006 1-011-8OOS 1-011-8001 REF USED ON 6-0020696 0654 0714 0729 3300) SOY. E 100J 2SV, E 1OOPft51. SOOV, DPI .005t201; 100v, CD .22t10%) 10OY, ltV .221101) 100v. ltV .68) SOV. E 470J lOV, E NOT USED 25) 2SV. E .01120%) 1000v, CD .02t201J 1000v, CD .01t20%J 1000v. CD .0022tlOI) 630V. ltV .
IM1035 Section 7 SUPPLEMENT 7.1 GENERAL We are continually striving to provide you with a service manual that represents the units you have ordered. Because of printing and shipping requirements we can't get these changes immediately in to the printed manuals. This section will contain change information concerning the TV 50, 90, 120 data display models. Each change supplement section will identify the mode1(s) affected by revision level of the final assembly.
INSTALLATION AND OPERATING MANUAL MALFUNCTION REPORT Dear Customer: We are trying to manufacture the most reliable product possible. You would do us a great courtesy by completing this form should you experience any failures. 1. Type Unit _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Serial No. _ _ _ _ _ _ _ __ ~odule (ifapplicable) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ 2. Part failed (Name and Number} _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ 3.
LOST OR DAMAGED EQUIPMENT The goods described on your Packing Slip have been received by the Transportation Company complete and in good condition. If any of the goods called for on this Packing Slip are short or damaged, you must file a claim WITH THE TRANSPORTATION COMPANY FOR THE AMOUNT OF THE DAMAGE AND/OR LOSS.
WARRANTY Ball Electronic Display Division certifies that each monitor will be free from defective materials and workmanship for one year from date of shipment to the original customer. The only exception will be the receiving tubes and solid state devices (transistors, diodes, etc.). Receiving tubes will carry a 90 day warranty, and the picture tube will have the standard one year warranty. With solid state devices, we will reflect the manufacturers' warranty.
