Circuit Description - Elo TouchSystems ET17 XXL Series Service Manual

Table of Contents
1. Audio circuit ..........................................................................................................44
2. Power supply.........................................................................................................44
3. Video input circuit ..................................................................................................44
4. Definition converter LSI peripheral circuit ...............................................................44
5. System reset, control circuit....................................................................................44
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6. E PROM for PNP .................................................................................................45
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7. E PROM...............................................................................................................45
8. CPU circuit............................................................................................................45
8.1 Dection of POWER switch status .....................................................................45
8.2 Display mode identification...............................................................................45
8.3 User control.....................................................................................................46
8.4 Control of identification converter LSI (I315)....................................................47
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8.5 I C bus control.................................................................................................47
8.6 Power ON sequence........................................................................................47
8.7 Power OFF sequence ......................................................................................48

CIRCUIT DESCRIPTION

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