Aiwa CSD-MD50, Service Manual, Page: 33 / 74

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1. CD TEST Mode
1-1. How to Active the CD TEST Mode
While pressing the CD
2
button, connect the AC power plug to the power outlet.
After the TEST mode is activated, the message “CD TEST” appears on the display and all displays on the FL tubes are turned
on.
1-2. Description of the TEST Mode Functions
Note: If the focus search is continued for ten minutes or longer, CD stops working because driver IC is heated and protection circuit
works. Restart the TEST mode after turning off the power supply to cool down the heat for about ten minutes.
1-3. How to Exit the CD TEST Mode
Exit the CD TEST mode by disconnecting the AC power plug from the power outlet, or by pressing the POWER button, or by
pressing any key other than the CD function button.
2. MD TEST Mode
2-1. How to Active the MD TEST Mode
While pressing the MD
2
button, connect the AC power plug to the power outlet.
After the TEST mode is activated, waits about one second, then the message “MD TEST” appears on the display.
The MD TEST mode can be used.
Note:
1. If a machine shows any abnormal operations during the TEST mode, unplug the main AC power immediately.
2. Recording and played back are not possible during the TEST mode.
TEST MODE
Mode
Start mode
Search mode
Play mode
Traverse mode
Sled mode
Operating Control
Activating the
test mode
9
CD
2
;
6
5
FL Display
All displays
are ON
TOC READING
Track No. and
playing time are
displayed
Eye catch rotates
Track No. and
playing time are
displayed
Eye catch flashes
All displays are ON
Operation
Continuous focus search
PU lens repeats full swing
Repeats * Note
Normal playback
When the TOC READING
cannot be performed, the same
movement as the search mode is
performed
Playback pause state
Pick up moves inner
circumference
Pick up moves outer
circumference
Function
APC circuit check
Laser current measurement
Focus error waveform check
Focus servo
Tracking servo
CLV servo
Sled servo
Tracking servo OFF
Sled servo
Mechanism operation check