Sony IPELA SNC-Z20N, Service Manual

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2
SNC-Z20N/Z20P (E)
2-6. Update of Software ..................................................................................... 2-6
2-6-1. Debug Mode ............................................................................... 2-6
2-6-2. Normal Mode ............................................................................. 2-8
3. Troubleshooting
3-1. No image is displayed on the PC
(When the POWER indicator is lit) ........................................................... 3-1
3-2. Color monitor picture is normal but PC image is NG
(When the POWER indicator is lit) ........................................................... 3-2
3-3. PC image is normal but color monitor picture is NG
(When the POWER indicator is lit) ............................................................ 3-3
3-4. Black spots, white spots and flaws on CCD ............................................... 3-4
3-5. POWER indicator does not light or blink ................................................... 3-5
3-6. Zoom lens does not operate ......................................................................... 3-6
4. Circuit Operation Description
4-1. Board Composition (Frame Wiring) ........................................................... 4-1
4-2. Block Diagrams ........................................................................................... 4-2
4-3. SY-310 Board .............................................................................................. 4-3
4-3-1. Power Block ............................................................................... 4-3
4-3-2. Analog Video Output Circuit ..................................................... 4-3
4-3-3. Digital Image Data Processing Circuit ....................................... 4-3
4-3-4. Outline of Main CPU Operation ................................................ 4-3
4-3-5. System ROM .............................................................................. 4-3
4-3-6. System Memory ......................................................................... 4-4
4-3-7. RTC Circuit ................................................................................ 4-4
4-3-8. Reset Circuit ............................................................................... 4-4
4-3-9. DIP Switch Block ....................................................................... 4-4
4-3-10. Clock Buffer Block .................................................................... 4-4
4-3-11. PC Card Control Block .............................................................. 4-4
4-3-12. Network Control Block .............................................................. 4-4
4-3-13. Reset Switch ............................................................................... 4-4
4-3-14. Sensor Input Circuit Block ......................................................... 4-4
4-3-15. Alarm Output Block ................................................................... 4-5
4-3-16. External RS-232 Communication Block .................................... 4-5
4-3-17. Camera Block Interface Connector Block ................................. 4-5
4-3-18. LED Circuit ................................................................................ 4-5
4-4. CT-229 Board .............................................................................................. 4-5
5. Semiconductor Pin Assignments