TEST MODE
1. How to Activate CD Test Mode
Insert the AC plug while pressing the CD function button.
When activating the test mode, OTEST� appears on the screen then all indicators light (start mode).
2. How to Cancel the CD Test Mode
Press the POWER button or disconnect the AC plug.
* When pressing any other function key during playback, the test mode is released.
3. Functions and Applications of CD Test Mode
Mode/No.Operation keyDisplayOperationCheck contents
Start modeAll lamps lightY All FLs lightY FL check
No.1Y Microprocessor check
Search mode STOP keyCDY Laser diode always turns ONY APC circuit check
Y Focus search continuos operationY Laser current measurement*1
Y Spindle motor continuos kickY Focus search waveform check
Y Focus error waveform check
No.2(DPR is ignored during search mode.)
Play modePLAY keyNormalY Normal playbackY Each servo circuit check
Y Focus search is continued if TOCY DPR check
No.3cannot be read.
Traverse modePAUSE keyNormalY Tracking servo OFF/ONY Tracking balance check
Repeats OFF and ON every time the
No.4PAUSE key is pressed.
Sled modeFF keyCD TEST Y Pickup moves to the innermost trackY Sled circuit check*2
The lens is kicked to the innermostY Tracking circuit check
track simultaneously.Y Mechanism operation check
RWD keyCD TEST Y Pickup moves to the outermost trackY PU check*2
The lens is kicked to the outermost
No.5track simultaneously.
Spindle modeTAPEAll lamps lightY The spindle motor is rotated forwardY Spindle circuit check
REC key(rough speed) by pressing the key.Y Spindle motor check
It is rotated reverse by pressing the key
again.
It is stopped by another pressing of the
No.6button.
RF AGC mode TUNER key AGC ON/OFF Y Repeats ON and OFF every time theY PC good or no good check
TUNER key is pressed.Y RF AMP circuit check
Y To return to the start mode display,
No.7press the CD key three times.
*1 ..... There are cases when the focus search cannot be operated owing to the protection circuit being operated when heat builds up in the
driver IC if the focus search is operated continually for more than 10 minutes. In these cases turn off the power, wait for a while,
then re-start the machine.
*2 ..... To avoid damage to the gears, do not keep pressing the FF or RWD key when the pickup is at the outermost or innermost track,
because the sled motor keeps running while the FF or RWD key is pressed when the pick-up is at the outermost or innermost track.
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ACEC
