Oki MB760, Руководство по обслуживанию

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45641001TH Rev.1
5-43 /
Oki Data CONFIDENTIAL
5.3.6 Circuit related service call
[F090] sRam abnormality on the sYs board
Classification Contents
Circuit related service call SRAM abnormality on the SYS board
Check item Measure
SRAM Check the connection of SRAM
1. Turn the power OFF, and start up the Setting Mode (08).
2. When “SRAM REQUIRES INITIALIZATION” is displayed on the
LCD, check the destination and then press the [START] button. If the
destination is not correct, key in the correct one and then press the
[START] button. (SRAM is initialized.)
3. After the confirmation message is displayed, press the [INTERRUPT]
button.
4. Perform the panel calibration (08-9050).
5. Enter the serial number (08-9601). Match it with the serial number on
the label attached to the rear cover of the equipment.
6. Initialize the NIC information (08-9083).
7. Turn the power OFF and then start up with the Adjustment mode (05).
8. Perform “Automatic gamma adjustment” <PPC> (05-7869). (using [4]
[FAX] test pattern)
9. Perform “Automatic gamma adjustment” <PRT> (05-8008, 8009).
(using [70][FAX] test pattern)
10. Turn the power OFF and then back ON.
SYS board Board check
Replacement part Messure
SRAM on the SYS board
SYS board
[F400] sYs board abnormality
Classification Contents
Circuit related service call SYS board abnormality
Check item Measures
SYS board Board check
Replacement part Measure
SYS board