Sharp MD-MX30 Service Manual page 18

MD-MX30/MX30W
When an MD is not loaded: "_EJECT_" appears.
Indication appears as shown in Figure 18-1 when a disc is not loaded.
When a disc is loaded, the MD microcomputer enters the AUTO YOBI mode. The received character data will be displayed
as Figure 17-1 (page 17).
"_EJECT_" indication when entering the MD test mode
Indication when moving to the normal power-off mode in the no auto adjustment mode.
When the MEMORY/ENTER button is pressed in this mode, the unit leaves this test mode and becomes normal power-on
state in the no auto adjustment mode.(This mode is used for technical consideration, not for service.)
After displaying "POWER ON", "MD DISC" (Figure 18-2) appears then the normal power-on indication appears.
"MD DISC" display
CD section
TEST 4 CD test mode
When focus is not correct in step 3 or when entering other
error correction modes, the unit cannot move to the next
step.
When the unit enters error correction mode, press the ON/
STAND-BY button to stop the test mode or the CD-STOP
button to return to step 1. Other operations are prohibited.
Press the ON/STAND-BY button in each step to cancel the
test mode and return to the normal POWER OFF.
Figure 18-1
Figure 18-2
CD test mode flow chart
Entry
Step1
Slide
CD-Stop
Step2
Laser output
CD-Stop
Step3
Focus search
CD-Stop
Step4
CLV
CD-Stop
Step5
Manual playback
Step7
Overall test
– 18 –
Memory CD-Play
CD-Play
Memory
CD-Play
Memory
CD-Play
Memory
CD-Play
Table 18