Aiwa NSX-R30EZ Service Manual page 43

CD TEST MODE-1/1
1. How to Start the CD Test Mode
While pressing the CD OPEN/CLOSE button, insert the AC plug to the power outlet.
When the test mode is started, the message [TEST] is displayed.
2. How to Exit the CD Test Mode
Press the POWER button, push other FUNCTION button or disconnect the AC plug.
* Pressing any other function key during PLAY, aborts the test mode.
3. Function Descriptions and Application of the CD Test Mode
No Mode Operation
1 Start mode
2 Search
mode
3 Play mode Play button
4 Traverse
mode
5 Sled mode FF button
RWD button
6 Spindle REC/REC
mode
*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: After the focus search is executed three times, the gain is changed to the CD-RW gain from the fourth time.
*3: 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.
Display
All indicators light
STOP READING
button
Normal
PAUSE Normal
button
TEST
TEST
All indicators light
MUTE
button
Function
•
All FL indicators light
•
LD illuminates all the time
•
Focus search continuous
operations *1,*2
•
Spindle motor continuous kick
•
Normal playback
•
If TOC cannot be read, focus
search is continued
•
Tracking servo OFF/ON
•
Each time PAUSE button is
pressed, the tracking servo
repeats turning OFF/ON
•
Pickup moves to the inner
circumference *3
At the same time, lens kicks to
the inner circumference
•
Pickup moves to the outer
circumference *3
At the same time, lens kicks
to the outer circumference
•
The spindle motor rotates
forward (rough speed) by
pressing the button and
rotates backward by pressing
one more time and stops by
pressing again
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Checking item
•
FL check
•
Microprocessor check
•
APC circuit check
•
Laser current measurement
•
Focus search waveform check
•
Focus error waveform check
(DRF in the search mode is
ignored)
•
Each servo circuit is checked
•
DRF check
•
RF WAVE check
(About 1.5vp-p)
•
Tracking balance check
•
Sled circuit check
•
Tracking circuit check
•
Mechanism operation check
•
Pickup check
•
Spindle circuit
•
Spindle motor