Hitachi C43-FD5000, Руководство по обслуживанию

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41
SERVICE ADJUSTMENTS
Note: If any error message (red) appears, refer to “ CONVERGENCE ERRORS ”.
CONVERGENCE ERRORS
If there is an error while performing INITIALIZE or MAGIC FOCUS , error code or message appears on the
screen as shown on the following table.
When MAGIC FOCUS operates: Error code (‘GREEN’) appears for about 1 second in bottom right corner, and
then returns to RF or video signal.
When INITIALIZE operates: Error message (RED) appears all the time.
REMARKS *1) Relation of sensor No. and screen position as shown below:
Error
Code
Error Massage Contents Countermeasure/ Check method
1 VF ERROR ! EEPROM Write Error
2
CONNECT1 !
No.01234567
OVER FLOW !
No.01234567 *1
Connection Check Error
(Pattern is not detected)
3
A/D LEVEL !
No.01234567
OVER FLOW !
No.01234567 *1
Calibration Error
(Small difference between
High and Low brightness)
Replace the DCU
Darken outside light
Check the placement of the sensor Is pattern hitting
to sensor?
Check connection and solder bridge of sensor
Replace the sensor
Sensor connector check
Sensor P.W.B. check
Adjustment check (H/V size, centering)
4 OVER FLOW !
Data over flow Error
(Saturation of corr. Dada)
5
Convergence
error(The number of
adjustment times is
more than setting.)
Convergence Error
(The number of ADJ. Times
is more than setting.)
Check the placement of the sensor
Adjustment check
(H/V size, centering)
Convergence AMP circuit check
6 LOOP COUNT ! Not use
7 OPERATION ! Make setup data error Same as error code 4
8 CHECK SUM ! Deferent SRAM-EEPROM Replace the DCU
9
CONNECT2 !
No.01234567 *1
Connect data set error(ADJ.
Parameter PORT80-87 Is
Wrong setting)
Same as error code 2
10 NOISE ! Sensor noise error
Input strong field strength signal
Check the wire dressing of connector between
sensor and DCU.
11 SYNC ! H BLK, V BLK error
Input strong field strength signal
Input standard signal NTSC or PAL
0 1 2
6 5 4
7 3
On screen
(View from front side)
sensor No. 0-7