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CD TEST MODE
1. Starting CD Test Mode
While pressing and holding down the
CD OPEN/CLOSE
button, insert the AC plug to outlet.
When test mode starts, the message, “ TEST” appears on the display.
2. Exiting CD Test Mode
Press the POWER button or remove the AC plug from outlet.
* When the other function keys are pressed during playback, test mode stops.
3. Function of CD Test Mode
No
Mode
Function Key
Display
Movement
Check
1
Start Mode
All lit.
FL all lit.
• FL check
• Microcomputer check
2
Search Mode
STOP button
READING
• LD constantly lit.
• APC circuit check
• Focus search continuous
• Laser current electricity measurement
movement *1
• Focus search waveform check
• Spindle motor continuous kick
• Focus error waveform check
(DRF is ignored during search mode.)
3
Play Mode
PLAY button
Normal
• Normal playback
• Each servo circuit check
• If TOC READ is unavailable, • DRF check
focus search is continued.
4
Traverse
PAUSE
Normal
• Tracking servo OFF/ON
• Tracking balance check
Mode
button
OFF and ON is repeated by every
press of the PAUSE button.
5 Sled mode FF button CD TEST • P
U
moves to the innermost position. *2
At the same time, lens is kicked
• Sled circuit check
toward inner position.
• Tracking circuit check
RWD button CD TEST • PU moves to the outermost position. *2
• Mechanism movement check
At the same time, lens is kicked toward
• PU check
outer position.
6 Spindle mode
REC/REC MUTE
All lit. • When the button is pressed at the first • Spindle circuit check
time, spindle motor rotates forward
• Spindle motor check
(at rough speed).
At the second press, rotation is reversed.
At the third press, rotation stops.
* 1 … When Focus Search operates continuously more than 10 minutes, the protection circuit is activated due to heat generation of the driver IC.
* 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.
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• RF wave check (1.55Vp-p Approx.)
