Denon DVD-1600 Service Manual page 14

8 Self-Diagnosis Function and Service Modes
8.1. New servicing method for DVD player (5th generation models)
With the 5th generation models new self-diagnosis function and new servicing method described below are additionally
available.
8.1.1. Firmware updating and recovery with disc
x x x x Recovery
x x x x Firmware updating
Simply run the recovery disc. Then both of the above operations are automatically performed.
Commercially available CD-R can now perform updating and recovery process, making it easier to update the version.
Recovery process: Optimization of player after replacement of FROM, EEPROM and modular P.C.B.
Version updating: Firmware updating for improved operability and performance
8.1.2. New self-diagnosis function
x x x x Cumulative operation time display function (Spindle motor and DVD/CD laser)
x x x x Servo process display function
x x x x ADSC internal RAM display function
x x x x Other: Increased number of last errors storage
1event o20 events
Utilization of the above functions, in combination with servicing procedures, is expected to contribute to higher efficiency of fault
diagnosis.
[Purposes]
Operation time display function: For faultfinding of spindle motor or laser that has limited service life
Servo process display: For fault diagnosis of player startup malfunction
ADSC internal RAM display function: For faulty part identification in servo system using the learned values
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