Sram Check; Dram Check - Muratec F-315 Field Engineering Manual

3.14.5 SRAM Check

This mode is used to test the SRAM memory where user programmed parameters such as date, time, TTI,
etc are stored.
Note: When this test is executed, the unit will perform an All RAM Clear.
The All RAM Clear erases all user settings and resets all memory switches, machine parameters and
unique switches to factory defaults.
1. Press <Menu>, <*>, <1>, <1>, < > four times. Then press <Enter>.
SRAM Check
Hex Code:
2. Enter the HEX code (00 ~ FF) using numeric keypad and one-touch key 01 to 06, then press <Start>.
The HEX code is written to, then read from, memory. After that, the result (OK/NG) will be shown in the
display. Then the machine will return to factory function.
The data are written to, then read from, each address. The results are shown in the display. If the
read/write test is successful the display will show "OK".
SRAM Check
OK
If some portion of the read/write test fails the display will show "NG" with the address and the data
name.
SRAM Check
NG
3. Upon completion, the machine returns to the test mode.

3.14.6 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 <Menu>, <*>, <1>, <1>, < > five times. Then press <Enter>.
DRAM Check
Hex Code:
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 keypad.
Please refer to the following table:
Note: Usually, press <0>.
Press
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
700100:0000
Check area
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