Service manual

 40 
CD TEST MODE
1. How to Start the CD Test Mode
While pressing the CD FUNCTION button, insert the AC plug to the power outlet.
When the test mode started, the message [CD TEST] is displayed.
2. How to Exit the CD Test Mode
Press the POWER button or disconnect the AC plug.
3. Function and Usage of the CD Test Mode
No Mode
Button for
Display Operation Contents
Activation
1 Start Mode All lights are  Microcomputer check
lit.
2 Search Mode STOP button READING  LD illuminates all the time  APC circuit check
 Focus search continues  Laser current measurement
operations *1  Focus search waveform check
 Spindle motor continuous kick
3 Play Mode PLAY button Normal  Normal playback  Each servo circuit is checked
 If TOC cannot be read, focus  DRF check
search is continued
4 Traverse Mode PAUSE button Normal  Tracking servo OFF/ON  Tracking balance check
STOP button to cancel
5 Sled Mode FF button CD TEST  Pickup moves to the inner  Sled circuit check
circumference *2  Mechanism operation check
RWD button CD TEST  Pickup is moves to the outer

Pickup Check
circumference *2
* 1. The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minutes or longer. There can be a
case that operations cannot be performed correctly. In such a case, turn off the main power. After cooling down the machine, restart the
machine.
* 2. Be careful not to damage the gear because the sled motor rotates while the FF or RWD button is being pressed even if the pickup is located in
the innermost track or the outermost track.