Aiwa XR-FD55 Service Manual page 90

ADJUSTMENT -2/13
2. Test mode
Setting to test mode:
1. While holding down the MD key, plug the power cord into AC outlet.
2. Load disc 1 for playback (high-reflection disc) or a disc for recording (low-reflection disc)
(will enter the (D) status).
(A) EJECT
(B) tsm26
(C) LOADING
(D) AUTO AJST
Entering each mode
Each press of CD SYNC button will alternate between the modes:
AUT YOBI
(AUTO main adjustment)
Releasing test mode
Resetting will return to normal status.
Always press the POWER button before resetting to write the data to EEPROM.
In order to change the EEPROM values, write data to EEPROM once, enter the test mode again to adjust using
*
the data, execute AUTO main adjustment, and then write the data to EEPROM again.
Be sure to write the data to EEPROM whenever you change the data values in EEPROM or re-execute AUTO
*
main adjustment.
Contents of test mode
1. EJECT mode
2. AUTO main adjustment mode
3. AUTO adjustment mode
4. AUTO AFB adjustment
5. EEPROM setting mode
6. TEST-PLAY mode
7. TEST-REC mode
8. INNER mode
: EJECT status
e : Test mode STOP status
MD microprocessor version appears in
: (Pressing the MD-STOP button in the (D) status will return to display (B).
To return to (D) again, press the CD-PLAY button.)
AUT AJST
(AUTO adjustment)
• To TEMP setting (in EEPROM setting)
• To CONTROL setting (in EEPROM setting)
• Measuring laser power (recording/playback power)
• Executing automatic main adjustment (only with low-reflection disc)
• Executing automatic adjustment
• Unnecessary for servicing
• Manually changing various coefficients of digital servo
• Executing continuous playback from designated address
• Measuring C1 error rate, ADIP error rate
• Executing continuous recording from designated address (1x speed/4x speed)
• Measuring the position where the INNER switch turns "ON"
AUT AFB
(unneeded for servicing)
-90-
.
EEPROM_SET
(EEPROM setting)