Sharp CD-MD3000H Service Manual page 37

2.
Test Mode
Test mode setting method
1. "MD TEST 1" ENTER.
(State A is changed to state B .)
2. Insert the playback-only disc 1 (high reflection disc) or the recordable disc 2 (low reflection disc). (State is changed to C.)
A tsm 1C e
B EJECT
C AUT AJST
Entering the specific mode
Whenever the EQUALIZER button is pressed, the mode is changed.
A U T O Y O B I
(AUTO prelimirary adjustment)
EEPROM_SET
ERR DATA
(EEPROM setting)
(ERRER DATA)
Cancel of test mode
To restore the usual state once reset.
*Before pressing the MENU button, be sure to perform the AUTO preliminary adjustment and the AUTO adjustment. Make sure
that they return a "COMPLETE" result.
*When the data of EEPROM was changed or the preliminary adjustment was performed again, be sure to press the MENU button
to write data in the EEPROM.
(Data is written in the EEPROM by pressing the MENU button.)
*When changing the EEPROM settings, write them into the EEPROM and then enter the test mode again. Perform the AUTO
preliminary adjustment and the AUTO adjustment. Then, write those into the EEPROM.
• Test Mode
1. EJECT mode
2. AUTO pre-adjustment mode
3. AUTO adjustment mode
• RESULT sub-mode
• RESULT mode (final adjustment)
• MANUAL pre-adjustment mode
• MANUAL adjustment mode
• MANUAL AFB adjustment mode
• ERROR DATA
4. EEPROM setting mode
5. TEST-PLAY mode
6. TEST-REC mode
7. INNER mode
1. EJECT mode
Step No. Setting Method
Step 1 Test mode EJECT state
Step 2 Press the DISP/CHARACTER button. Playback power output state
Step 3 Press the DISP/CHARACTER button. Rec power output state
Step 4 Press the DISP/CHARACTER button. Therefore do not set this mode since it is not necessary
Step 5 Press the X-BASS button.
Step 6 Press the PLAY button.
Step
Playback power output
MD TEST 1
[ppw]
Recording power output
2
[rpw]
Cannot enter
[rpw] mode
: TEST MODE
STOP state
(When the MD STOP button is pressed in the C state, the indication A is
restored. To restore C again, press the EQUALIZER button.)
AUTO AJST
(AUTO adjustment)
(MANUAL advanced FAB adjustment)
• TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
• Automatic pre-adjustment is performed.
• Automatic adjustment is performed. (After adjustment the grating adjustment mode is set.)
• Therefore do not set this mode since it is not necessary for the service.
• Various coefficients of digital servo are changed manually.
• Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
• Continuous recording from the specified address is performed.
• The position where the INNER switch is turned on is measured.
TEMP setting of EEPROM setting
CONTROL setting of EEPROM setting
Check items
Mode
Pin 3 of IC1401
DC0.2V
DC1.5V
DC1.8V
Below DC1.5V
–
represents version of MD microcomputer.
A U T A F B
(Advanced FAB adjustment)
MAN AFB
(MANUAL adjustment)
Remarks
Result Probable cause and remedy
To check 2 –
NG Microcomputer may have recognized the PWB
as for playback-only. Perform check 1.
Check end –
NG Perform check 2.
NG Microcomputer may have recognized the PWB
as for playback-only. Perform check 1.
– 37 –
CD-MD3000H/CD-MD3000W
R S T Y O B I
(RESULT RESULT
Y O B I )
M N U A J S T
M N U
(MANUAL pre-adjustment)
[ _ _ E J E C T _ _ _ ]
[ p p w _ _ _ _ _ _ _ ]
[ r p w _ _ _ _ _ _ _ ]
[ x p w _ _ _ _ _ _ _ ]
for the service.
[TEMP _
Y O B I
Display
_ ]