Toshiba GD-1370, Руководство по обслуживанию

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TROUBLESHOOTING
7 - 7
7.5 Fault Analysis
7.5.1 Power-ON is not possible
1. Check if the power cable is plugged into an appropriate outlet (of the correct voltage).
2. Check if the rated voltages are being output from the switching power supply. When the measured
voltage is not the rated value, replace the switching power supply.
3. Check if each connector between the DSP board and the SYS board is disconnected.
4. Check if each connector between the SYS board and the power supply unit is disconnected.
5. Check if each connector pin is removed or the harness is broken.
6. Check if any conductor pattern on the power supply unit and SYS board is open circuited or short
circuited.
7. Replace the DSP board.
8. Replace the SYS board.
7.5.2 Original transport error for the RADF or DSDF
If an original is misfed in its transport path, remove it. If this error occurs frequently, refer to the
troubleshooting of the Service Manual for the equipment.
7.5.3 Recording paper transport error
If a recording paper is misfed in its transport path, remove it. If this error occurs frequently, refer to the
troubleshooting of the Service Manual for the equipment.
7.5.4 Image trouble
Check the image and refer to the troubleshooting of the Service Manual for the equipment.
7.5.5 Communication error
Perform communication over again when an error occurs since it may be a cause of the bad condition
of a particular phone line at communication. If communication errors occur too many times, prepare
another (operational) fax board and check the communication condition among those three fax boards,
thus analyzing the troubles.
A communication error occurs between A and B.
This FAX Remote FAX unit
Operational FAX
Fig. 7-5