Technical information

4-60

SmartBase MPC600F/MPC400 Chapter 4: Maintenance & Service

1:D-RAM 4528K

Complete (no err)

4528K: D-RAM total memory capacity (bytes)

✽ : 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 key.

Error display

WRT : data written

RD : data read

ADR : address

✽✽✽.....✽✽✽

ADR=

2800

Complete (err)

6.2.4 CS tests

Pressing the

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 4-6

Tests [2], [3], [4] and Tests [5] are not used in the field.

Figure 4-25 D-RAM Test

6.2.3 D-RAM tests

Pressing the

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.