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CD TEST MODE -1/1
1. Starting CD Test Mode
While pressing and holding down the CD Function button, insert the AC plug to outlet.
When test mode starts, the display appears all.
2. Exiting CD Test Mode
Press the other function keys, or remove the AC plug from outlet.
3. Function of CD Test Mode
No
Mode
Function Key
Display
Movement
Check
1
Start Mode
LCD check
Microcomputer check
2
Search Mode *2 STOP button
APC circuit check
Focus search continuous movement *1
TEST MODE starts
LCD all lit
Laser current electricity measurement
Focus search waveform check
Focus error waveform check
(DRF is ignored during search mode.)
3
Play Mode
PLAY button
Normal
Normal
CD function
AC IN
Normal playback
Each servo circuit check
If TOC READ is unavailable, focus
DRF waveform check
RF waveform check (1.8 Vp-p Approx.)
search is continued.
4
Sled mode
PU moves to the innermost position.
*3
Sled circuit check
FF button
RWD button
All lit
All lit
All lit
PU moves to the outermost position. *3
Mechanism movement check
PU check
* 1
When Focus Search operates continuously more than 10 minutes, the protection circuit is activated due to heat generation of the driver IC.
In this case, turn off the power, wait for approximately 10 minutes so that heat is released, and then restart.
* 3
* 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.
Spindle motor continuous kick
It does not operate, unless CD DOOR SW turn on.
