CD TEST MODE
1. How to Start the CD Test Mode
While pressing the FUNCTION button, insert the AC plug to the power outlet.
When the test mode is started, the message [CD TEST] is displayed.
2. How to Exit the CD Test Mode
Press the POWER button or disconnect the AC plug.
*When any key other than PLAY is pressed during play mode, the machine exits the test mode.
3. Function Descriptions and Application of the CD Test Mode
NoModeOperationDisplayFunctionChecking item
1Start modeAll indicators light All FL indicators light FL check
Microprocessor check
2SearchSTOP buttonREADING LD illuminates all the time APC circuit check
mode Focus search continuous Laser current measurement
operations *1 Focus search waveform check
Spindle motor continuous kick Focus error waveform check
(DRF in the search mode is
ignored)
3Play mode Play buttonNormal Normal playback Each servo circuit is checked
If TOC cannot be read, focus DRF check
search is continued
4TraversePAUSENormal Tracking servo OFF/ON Tracking balance check
modebutton Each time PAUSE button is
pressed, the tracking servo
repeats turning OFF/ON
5Sled modeFF buttonCD TEST Pickup moves to the inner Sled circuit check
circumference *2 Tracking circuit check
At the same time, lens kicks to Mechanism operation check
the inner circumference Pickup check
RWD buttonCD TEST Pickup moves to the outer
circumference *2
At the same time, lens kicks to
the outer circumference
6SpindleREC/RECAll indicators light The spindle motor rotates Spindle circuit
modeMUTE buttonforward (rough speed) by Spindle motor
pressing the button and rotates
backward by pressing one more
time and stops by pressing again
*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 can not 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 pick-up is located
in the innermost track or the outermost track.
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ACEC
