78
XR-A550MD
Mode
Meaning and use of commands in Test Mode 2
Remarks
Short
Used when engaging Test Mode.
(Test Mode setting)
Resets and starts the MD unit and inputs this command.
PRESET
Operates at adjusted value set in Test Mode, after writing to EEPROM and
Restart with this key after quitting Test Mode
executing mechanism positioning.
(Auto Adjustment Disabled Mode setting).
0
EJECT command Ejects disc.
MENU
Test Mode menu scan (1)
(Scans menus related to adjustments and EEPROM.)
ENTER
Test Mode menu scan (2)
(Scans mainly menus related to continuous playback and continuous recording.)
DISP/CHARA
Test Mode menu scan (3)
(Scans INNER Mode, JUMP SELECT, and other menus.)
MD REC/STOP
Test Mode menu reverse scan
(Scans all Test Mode menus in reverse order.)
`
Selects or starts execution of a menu.
7
Stops a test item and moves to the next most important menu selection.
S.M. JOG
1. Slide forced scan (FWD direction)
2. JUMP execution (FWD)
Continuously pressed down
(clockwise)
3. ADDRESS set value UP 4. Direction designation when setting tracking
S.M. JOG
1. Slide forced scan (REV direction)
2. JUMP execution (REV)
Continuously pressed down
(counterclockwise)
3. ADDRESS set value DOWN 4. Direction designation when setting tracking
¡
1. DISC forced EJECT 2. Set value UP
Continuously pressed down
1
1. DISC forced LOAD 2. Set value DOWN
Continuously pressed down
DELETE
1. Laser power changeover in EJECT
2. Display changeover during continuous playback
3. Set value digit changeover when setting ADDRESS
1. AUTO Preliminary Adjustment Mode
Executes AUTO Preliminary Adjustment. (After adjustment, Grating Adjustment Mode is engaged.)
Outputs adjusted value.
2. AUTO Adjustment Mode
Executes AUTO Adjustment.
Outputs adjusted value.
Executes continuous playback (error rate display, jump test)
Displays measured values, set values, and calculated values.
Changes set value manually (in Servo OFF status).
4. RESULT Mode (this adjustment)
Displays set value (after calculation).
Changes set value manually (in Servo OFF status).
5. MANUAL Preliminary Adjustment Mode
Executes RF side manual adjustment.
Executes focus/tracking signal ATT manual adjustment.
Executes focus/tracking signal offset adjustment.
Executes focus/tracking signal ATT manual adjustment.
Manually changes all digital servo coefficients, etc.
Turns each servo ON independently.
Measures temperature detector terminal voltage and standard value.
8. TEST-PLAY Mode
Executes continuous playback from designated address.
Measures C1 error rate and ADIP error rate.
9. TEST-REC Mode
Executes continuous recording from designated address.
Changes recording laser output (and also changes servo gain to match laser output).
10. INNER Mode
Measures point where INNER switch is turned ON.
11. EJECT Mode
To (EEPROM set) TEMP setting
To (EEPROM set) CONTROL setting
Laser power setting (Rec/Play power)
Key Allocation for Test Mode 2
Test Mode 2 Menu
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