SERVICE MANUAL AND PARTS CATALOG
GENERAL INFORMATION

The Graphic Display unit is intended for the video game market. There are two models available and only differ in picture tube size and CRT mounting.

The main sections of the display are the H.V. Power Supply and Deflection Amplifier circuitry. A.C. power and X, Y, Z signals are fed to the display through a 12 pin receptacle located on the rear support strut. A major part of the circuitry is located on a plug-in circuit board. X-Y output transistors are mounted on side panel which also serves as a heat sink for these devices. H.V. regulator output and oscillator transistors are mounted on H.V. cage.

Component reference numbers and circuit legend are printed on the circuit board to aid in servicing. The picture tube is securely mounted to the chassis by brackets to create the complete unit. The picture tubes used all have implosion protection.

Side panel controls on right edge of Deflection P.C. Board include contrast, brightness, X linearity and Y linearity controls. Side panel control on H.V. Cage at left includes focus control. H.V. adjust control is accessible through H.V. cover near center of H.V. Cage front.


TABLE OF CONTENTS

Description Location
General Information You are here!
Electrical Specifications Page 1
Theory of Operation Pages 6, 7, 8, 9, 10, 11, 12
Product Safety Servicing Guidelines Page 3
Operating Instructions Page 3
Important Service Notes Page 3
Service Information Pages 4, 5
Deflection PCB Layout Page 13
H.V. PCB Layout Page 14
Parts Listing by Layout Designation Pages 16, 17
Chassis Voltage Waveforms Page 18
Schematic Diagram Page 19, 20
Assembly View of 19V2000 Page 21



WARNINGS

X-RADIATION

THIS CHASSIS HAS BEEN DESIGNED FOR MINIMUM X-RADIATION HAZARD. HOWEVER, TO AVOID POSSIBLE EXPOSURE TO SOFT X-RADIATION IT IS IMPERATIVE THAT THE H.V. CIRCUITRY IS NOT MODIFIED.
HIGH VOLTAGE
THIS DISPLAY CONTAINS HIGH VOLTAGES DERIVED FROM POWER SUPPLIES CAPABLE OF DELIVERING LETHAL QUANTITIES OF ENERGY. TO AVOID DANGER TO LIFE, DO NOT ATTEMPT TO SERVICE THE CHASSIS UNTIL ALL PRECAUTIONS NECESSARY FOR WORKING ON HIGH VOLTAGE EQUIPMENT HAVE BEEN OBSERVED. IN ORDER TO PREVENT DAMAGE TO SOLID STATE DEVICES, DO NOT ARC PIX TUBE ANODE LEAD TO CHASSIS OR EARTH GROUND.

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