Protection History Display Mode - Denon RCD-N9 Service Manual

4.6. Accumulated laser on time display
When the "Volume f " button is pressed while this Unit is in the "CD TEST MODE "displayed, the accumulated laser on
time is displayed.
The laser drive times are added and the result is displayed.
The time is counted in 10-minute blocks and the count values are displayed in hourly units. Values for up to 10922 hours
are displayed.
Press the "SOURCE" button, CD TEST MODE display reappears.
The count values are not cleared, even when the set is reset (Factory/User).
Countnvaluenisnreset
When the " 1 / 3 " button is pressed for over 5 seconds while the accumulated laser on time is displayed, the count value is
reset.
Count value is reset upon shipment from the factory and when the mechanism is replaced.

5. Protection History Display Mode

5.1.Operation
In "STANDBY" status, press and hold the "CURSOR o " and "INPUT SOURCE" buttons along with the power operation
button to turn on the power.
Startup display
"Detect Protection" displayed for 5 seconds.
To exit this mode, unplug the power cord.
(a) No detection history
(b) Thermal protection
Abnormal increases in D-AMP temperature are detected (TAS5142).
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