Aiwa XR-FD55 Service Manual page 100

ADJUSTMENT -12/13
Procedure for writing data to EEPROM
1. Reference temperature setting method
(Perform this setting quickly with C.B. unheated at room temperature 21-29°C.)
Step
1 After replacing EEPROM, wait until the mechanism cools down.
2 Connect the unassembled main C.B. to the system unit.
3 Set to the test mode.
Press REC START button.
4
Find the temperature compensation value from the ambient temperature according to the
table below, and use the JOG MODE and EDIT buttons to set to the compensation value.
2 1 ° C ~ 2 3 . 2 ° C
5
2 3 . 3 ° C ~ 2 6 . 8 ° C
2 6 . 9 ° C ~ 2 9 ° C
Example: If the ambient temperature is 22°C and the temperature measurement value is 7AH:
Temperature set value = 7AH –01H = 79H
* If the temperature measurement value drifts between two values, set the smaller value to the
measurement value (select 79H if the value drifts between 79H and 7AH).
6
Press POWER button to write the temperature set value to EEPROM.
7 Assemble the main C.B. into mechanism, connect it to the system unit, perform AUTO
main adjustment, and then press the POWER button again to write the data to EEPROM.
2. Method of setting parameters other than temperature
Step
Assemble the main C.B. into mechanism and connect it to the system unit.
1
2
Set to the test mode and load a disc.
3 Press CD SYNC button twice.
Display according to the page EEPROM setting mode, and use JOG MODE and
4
EDIT buttons to match the setting values in "List of data in EEPROM".
5 Press POWER button to write the setting values to EEPROM.
Set to the test mode again, perform AUTO main adjustment, and write the data to EEPROM.
6
Details of work
Ambient temperature
Details of work
Compensation value
– 1 H
± 0 H
+ 1 H
-100-
Display
[ _ _ E J E C T _ _ _ ]
[ T E M P _ _ ]
: Temperature measurement
value
: Temperature set value
Display
[ A U T O _ A J S T _ ]
[ E E P R O M _ S E T ]