Dolby
®
Model CP650 Installation Manual
Maintenance and Troubleshooting
9-8
00:00:00 Startup
10:20:36 Startup
36:09:03 Startup
9.3.3
The Event Log
The event log stores entries on the operation of the CP650. It can be useful in
troubleshooting or tracking subtle system failures. Also, Auditorium Assist "fail"
parameters are stored in the event log. (See Section 7.14.4.) Normally, a single log
entry occurs every time the CP650 powers on. When viewing the event log display,
the newest entries appear at the top; turn the front-panel knob to scroll through the
list.
To view the event log:
1 2 3
7
4 5 6
8
The event log is a User Menu item (Ensure that
DIP switch 6 is in the normal (down) position.
+
Press the left menu button multiple times, or press
and hold
the button while rotating the front-panel
knob to move the display to the
Event Log
menu.
Scroll through the event log using the front-panel
knob.
Note:
If film is running during CP650 power-up, you may see
erronious information entered into the even log. The power-up
self-test software applies test signals to the optical input circuits.
If film is playing, the test signals are mixed with film sound,
producing unpredictable test results.
9.3.4 Troubleshooting
Chart
The following chart may assist you in solving problems.
