Muratec F-525, Field Engineering Manual

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If some portion of the read/write test fails, the display will show “NG” with the address and the data
name.
3. Upon completion, the machine returns to the test mode.
3.13.6 DRAM Check
This mode is used to test the DRAM memory, or document memory.
Note:
When this test is performed, an All DRAM Clear will be performed by the unit. The All RAM
clear erases all user settings and resets all memory switches, machine parameters and unique
switches to factory defaults.
This is a read/write test that requires a few moments to complete.
Note:
Perform a DRAM test whenever a memory upgrade is added to the unit.
1. Press <Setting>, <*>, <1>, <1>, then select [DRAM Check].
2. Enter the HEX code (00 ~ FF) using numeric keypad and one-touch key [01] to [06], then press
<Start>.
3. Depending on the amount of DRAM in the unit, press <0>, <1>, <2>, or <3> on the numeric key-
pad.
Please refer to the following table:
Note: Usually, press <0>.
Press Check area
0 All DRAMs
1 The standard memory on the main control board
2 The first half of the 32MB Optional Memory PCB
3 The second half of the 32MB Optional Memory PCB
4. Press <Start> .
The machine starts checking and the result (OK/NG) will be shown in the display.
For example, if the check area is “0” and one additional memory, you will see: