D-Ram Tests; Cs Tests - Canon SmartBase MPC600F Service Manual

SmartBase MPC600F/MPC400 Chapter 4: 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.
Replace the SCNT board if an error occur.
Operating
1:D-RAM
. . . . .
Normal end
Complete
WRT : data written
RD : data read
ADR : address

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).
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4528K: D-RAM total memory capacity (bytes)
4528K
: Indicates an address for which write testing is complete.
. : Indicates an address for which read testing is complete.
Error
Error display
(no err) WRT= 33CC RD= 3333
ADR= 2800
Error display
Complete
Figure 4-25 D-RAM Test
Details on CS LED lights-on duration adjustment, see 3.1 CS LED Lights-on Duration
Adjustment on page 4-6 .
Tests [2], [3], [4] and Tests [5] are not used in the field.
Restart by pressing
Start key.
(err)
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