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MAINTENANCE MANUAL Part 1 DVW-707 (SY) Serial No. 10001 and Higher DVW-707P (SY) Serial No. 40001 and Higher DVW-709WS (SY) Serial No. 10001 and Higher DVW-709WSP (SY) Serial No. 40001 and Higher DVW-790WS (SY) Serial No. 10001 and Higher DVW-790WSP (SY) Serial No. 40001 and Higher This manual is organized by the following sections: Section 1 Service Overview Explains the locations of main parts, the functions of printed circuit boards, the removal and reinstallation of cabinet, and the measures against troubles. Section 2 Diagnostics Explains the error messages and self-diagnostics. Section 3 Setup Menu Explains the setup menu (engineering mode) and VTR (DIAG) menu of this unit. Section 4 Camera System Electrical Alignment (Only for DVW-790WS.790WSP/709WS/709WSP) Explains the electrical adjustments after installing/replacing the lens to/of the DVW- 790WS/790WSP/709WS/709WSP. Section 5 Camera System Electrical Alignment (Only for DVW-707.707P) Explains the electrical adjustments after installing/replacing the lens to/of the DVW- 707/707P. Section 6 Block Diagrams and Circuit Description Describes the overall block diagrams and circuit description. Section 7 Periodic Maintenance and Inspection Explains the cleaning procedures and periodic checks.