Circuit Related Service Call - Oki MB760 Service Manual

5.3.6

Circuit related service call

[F090] sRam abnormality on the sYs board
Classification
Circuit related service call
Check item
SRAM
SYS board
Replacement part
SRAM on the SYS board
SYS board
[F400] sYs board abnormality
Classification
Circuit related service call
Check item
SYS board
Replacement part
SYS board
45641001TH Rev.1
SRAM abnormality on the SYS board
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.
Board check
SYS board abnormality
Board check
Oki Data CONFIDENTIAL
Contents
Measure
Messure
Contents
Measures
Measure
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