Aiwa NSX-R50, Service Manual

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CD TEST MODE
1. Starting CD Test Mode
Insert the AC plug while pressing and holding down the CD OPEN/CLOSE button.
When the test mode is activated, the display appears “TEST”.
2. Exiting CD Test Mode
Press the POWER button or unplug the AC plug.
3. CD Test Mode Buttons and Functions
No Mode Buttons Display Operation Details
1 Start Mode All lit. • All FL lit. • FL check
• Microcomputer check
2 Search Mode STOP button READING • LD continuously lit. • APC circuit check
• Continuous focus search *1 • Laser current electricity
measurement
• Spindle motor continuous kick • Focus search waveform check
• Focus error waveform check
(DRF is ignored during search
mode.)
3 Play Mode PLAY button NORMAL • Normal playback • Servo circuits check
• Focus search continued if • DRF check
TOC READ is unavailable.
4 Traverse Mode PAUSE button NORMAL • Tracking servo OFF/ON • Tracking balance check
OFF/ON repeated every time the
PAUSE button is pressed.
5 Sled Mode FF button CD TEST • PU moves the inner track *2, and • Sled circuit check
lens is kicked to the inner track. • Tracking circuit check
• Mechanism function check
• PU check
FWD button CD TEST • PU moves to the outer track *2,
and lens is kicked to the outer
track.
6 Spindle Mode REC/REC All lit. • When the button is pressed at • Spindle circuit check
MUTE button first, spindle motor rotates in the • Spindle motor check
FWD direction (at rough speed).
At the second press, the direction
is reversed. At the third press, the
mode stops.
*1 When the focus search mode is repeated more than 10 minutes, the driver IC may generate heat, activating the protection
circuit to stop operation. In this case, turn off the power, leave the unit for a while, and then, restart.
*2 When the pickup is positioned at the innermost track or the outermost track, and the FF button and the RWD button are
pressed down, the sled motor rotates. Therefore, observe gear to avoid damage.