Aiwa NSX-R20 Service Manual page 38

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
d
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 STOP
mode button
p
3 Play mode Play button
4 Traverse PAUSE
mode button
5 Sled mode FF button
t
RWD button
6 Spindle REC/REC
mode MUTE
button
*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 All FL indicators light
•
READING LD illuminates all the time
•
Focus search continuous
operations *1,*2
•
Spindle motor continuous kick
•
Normal Normal playback
•
If TOC cannot be read, focus
search is continued
•
Normal Tracking servo OFF/ON
•
Each time PAUSE button is
pressed, the tracking servo
repeats turning OFF/ON
•
TEST Pickup moves to the inner
circumference *3
At the same time, lens kicks to
the inner circumference
•
TEST Pickup moves to the outer
circumference *3
At the same time, lens kicks
to the outer circumference
•
All indicators light The spindle motor rotates
forward (rough speed) by
pressing the button and
rotates backward by pressing
one more time and stops by
pressing again
r
-38-
u
Function
•
FL check
•
Microprocessor check
•
APC circuit check
•
Laser current measurement
•
Focus search waveform check
•
Focus error waveform check
(DRF in the search mode is
a
ignored)
•
Each servo circuit is checked
•
DRF check
•
RF WAVE check
•
Tracking balance check
•
Sled circuit check
•
Tracking circuit check
•
Mechanism operation check
•
Pickup check
o
•
Spindle circuit
•
Spindle motor
Checking item
(About 1.7vp-p)