Bosch Appliances LTC 8800, LTC 8600 22.2Keyboard Checkout, 22.3Video Monitor Display Checkout

LTC 8600 LTC 8800 Series en 103

22.2Keyboard Checkout

1.No keyboard display indicators: Check interconnect cable for cut or broken wires between keyboard and main CPU bay. Replace cable if necessary. Relo- cate keyboard connector on main CPU bay to another keyboard input port. Replace keyboard.

2.Keyboard indicators lit but keyboard is inoperative: Verify keyboard is logged-on to the system (if log-on feature has been enabled). Check interconnect cable for cut or broken wires between keyboard and main CPU bay. Replace cable if nec- essary. Relocate keyboard connector on main CPU bay to another keyboard input port. Replace keyboard.

3.Limited keyboard functions: If possible, perform a local keyboard test to verify operation of all keys. See Chapter 15, “User Information,” on page 56. If a local test cannot be performed, replace the keyboard.

Users of the optional LTC 8850 GUI Software or the optional LTC 8059 MCS package should refer to lockout tables to determine if problem is related to user restriction tables. If table settings are verified and no discrepancies are found, replace keyboard.

4.Keyboard Joystick not centered: If the analog joystick of the system keyboard becomes un-centered due to normal wear, it can be re-calibrated. If using the IntuiKey keyboard, go to the Keyboard Control menu and press [Joystick Auto Calibrate]. If using the LTC 8555 Series keyboard, refer to the User Function 1 procedure. (See Chapter 15, “User Information,” on page 56).

22.3Video Monitor Display Checkout

1.No video display on any monitor: Verify proper CPU operation as described above under Main Bay Checkout Section.

2.No video display on some monitors: Verify operational camera is selected on suspect monitors. Confirm monitor is operational. Check monitor coax connec- tions. Verify coax connection to correct monitor output on rear of main bay. Replace video output module.

3.Poor video on monitor: Check monitor for proper termination. Check operation of known good camera directly to monitor.

4.Partial or no on-screen alphanumeric display: Check user selectable brightness feature (via USER 5 keyboard function) and then verify alphanumeric display has been enabled (via USER 6 keyboard function). Position the overlay with USER 4 function.

5.Time and Date portion of the on-screen display alternates with “?? ?? ??”, and the LED on the front panel indicates a low battery condition: Replace CPU bat- teries.

F.01U.127.393 2.0 2009.03 Instruction Manual Bosch Security Systems, Inc.