Toshiba FC-22 manual CE5 Temperature/humidity sensor upper-limit abnormal

CE5 Temperature/humidity sensor upper-limit abnormal

Is the harness between the LGC board and the temperature/humidity sensor disconnected ? Is the LGC board connector J112 or the temperature/humidity sensor connector disconnected ?

YES

▼

NO

▼

Reconnect the connector. Replace the harness.

1.Replace the temperature/humidity sensor.

2.Replace the LGC board.

CF1 Color registration control abnormal

<Check of the status of color registration sensor error>

1.While pressing [0] and [5] simultaneously, turn the power ON.

2.Input [461] with digital keys and press [START].

3.The four values of the color registration control result are displayed (Y(0), M(1), C(2), K(3)).

4.Check the value for Y(0) displayed in 3.

When [CF1] is generated, a value from 1 to 15 is displayed (normal if 0 or 16 or above). 1-14: Data error (color registration sensor is normal)

15:Reading error of color registration test pattern

<Disabling the color registration control>

5.While pressing [0] and [8] simultaneously, turn the power ON.

6.Input [742] with digital keys and press [START].

7.Set the color registration control setting to [1](manual).

8.Input [743] with digital keys and press [START].

9.Set the color registration control for warming-up to [0](disabled). 10.Turn the power OFF.

<Check by color registration control forced performing> 11.While pressing [0] and [5] simultaneously, turn the power ON.

12.Input [407] with digital keys and press [START]. This will result in forced performing of color registration control.

*At this time, use a digital tester to monitor the test point TP91 (front color registration sensor output) and TP93 (rear color registration sensor output) on the LGC board.

FC-22 TROUBLESHOOTING 4 - 48 January 2000 © TOSHIBA TEC