Canon MultiPASS C530, Service Manual

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MultiPASS C530/C560 Chapter 3: Maintenance & Service
6.2.3 D-RAM tests
Pressing the
1
button from the test mode menu selects the D-RAM tests. D-RAM Test 1 writes data to
the entire D-RAM region and reads it out to check that operations are correct. D-RAM Test 2 just reads
data at high speed.
6.2.4 CS tests
Pressing the
2
button from the test mode menu selects the CS tests. ADJ LED TIME is used to adjust
the CS LED lights-on duration and enter the contact sensor’s shading data (pre-scan operation).
Details on CS LED lights-on duration adjustment, see 3.1 CS LED lights-on duration
adjustment on page 3-6
.
Tests [2], [3], [4] and Tests [5] are not used in the field.
1:D-RAM 7008K
Complete (no er
7008K: D-RAM total memory capacity (bytes) (MultiPASS C560)
864K: D-RAM total memory capacity (bytes) (MultiPASS C530)
✽
: Indicates an address for which write testing is complete.
. : Indicates an address for which read testing is complete.
Operating
Normal end
WRT= 33CC RD= 3333
Error
Error display
Restart by pressing
START/COPY key.
Error display
WRT : data written
RD :
data read
ADR : address
✽ ✽ ✽
. . . . .
✽ ✽ ✽
ADR= 2800
Complete (error
Figure 3-22 D-RAM Test
REFERENCE