D-Ram Test <1:Dram - Canon GP160DF Service Manual

CHAPTER 4 SERVICE MODE
3. D-RAM test <1: DRAM>
Performs a write/read check on data in all areas of the D-RAM. When optional
expansion memory has been installed, also checks the expansion memory area.
When an error occurs during checking, the test will be aborted and an error mes-
sage will be indicated on the display.
:
Caution
When a D-RAM test is performed, the image data saved in the image memory are
cleared. Therefore, output the images before performing the test when there are
saved images.
Running
1:D-RAM
. . . . . . * * * * * * *
Normal completion
1:D-RAM
complete
WRT: Written data
RD: Read data
ADR: Address
4-64
7168K: D-RAM's total memory volume (in bytes)
* : indicates write test completed bank.
7168K
. : indicates read test completed bank.
When an error occurs
Error display
15360K
(no error)
Error completion
Figure 4-16
WRT= 33CC RD= 33EC
ADR= BF840201
Reopens when
start key is
pressed
1:D-RAM 15360K
complete (error)