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17” CDT Color Monitor  

107B7  

Service  

Service  

Service  

Horizontal Frequency  

3

0-86 kHz  

TABLE OF CONTENTS  

Page Description  

Description  

Page  

Table Of Contents...................................................1  

Revision List.......................................................2  

Important Safety Notice.................................3  

7-1.Noraster,CRT relative circuit problems...........……........28  

7-2. Abnormal displays................………………………..…...30  

7-3 No blanking................................................31  

7-4 Hor./OSC/DEF/HV circuit fault................................31  

7-5. Abnormal horizontal deflection...................................32  

7-6. Abnormal vertical scanning............…........................33  

7-7. Side-pin cushion distortion.........………………........33  

7-8. Poor focus...................................…….............33  

7-9. Power supply trouble shooting chart.................35  

8. Mechanical of cabinet front dis-assembly...………......35  

9. Spare parts list..........................................36  

10. Different parts list..........................................47  

11 Block diagram............................................48  

12 IC block diagrams.............................................49  

13 PCB layout............................................55  

13-1 Main PCB layout..........................................55  

13-2. CRPC board layout.........................................56  

14. Schematic diagram.........................................57  

15. General Product Specification…………………………61  

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. Specifications..........................................4  

. Precaution and notices................................7  

-1Safety precautions....…...............…..............7  

-2 Product safety notice ..........................................7  

-3 Service Notices....................…………......7  

-4 High voltage warning............................................8  

. Operating Instructions................…………….............9  

. Adjustment .........................……………………….......10  

-1. Adjustment conditions and precautions ...……........10  

-2. Main adjustments.........…………………...................10  

-3 Adjustment methods........................................13  

-4 DDC Instructions………………………….……….…….17  

.Circuit description ..……..……………………............22  

-1.Micro controller and deflection circuit .………….......22  

-2.Transistor & diode circuit...............................24  

.Mechanical Instructions......................…………….......25  

.Trouble shooting chart..........................……….......28  

SAFETY NOTICE  

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE  

NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.  

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING  

GB 3138 106 10530  

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