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Operation Display Note
Check to see if
timer is working.
7
Shows dots at
corners.
6
ESC
TIME DISPLAY
00:00:XX
TEST 2 MEMORY
MENU 3 KEY
4 BUZZER
1 DISP 5 EXT
RAM check
To return to the
TEST MENU,
press .
5: Not used
6: Not used
2
MEMORY 3 WR2
4 READ2
1 WR1 5 DUMP
2 READ1 6 CHKSUM
1
( or 3 )
WRITE1
( or WRITE2 )
ESC
Operation Display Note
Memory Check
The functions of the numbered items on the display include:
1. WR1 :Writes the test pattern in the ROM to the RAM area. (Test pattern: Incremental order 00,
01, and so on)
2. READ1 :Compares the test pattern with the write data (WRITE1) of the RAM and displays the
results.
3. WR2 :Writes the test pattern in the ROM to the RAM area. (Test pattern: Decremental order
FF, FE, and so on)
4. READ2 :Compares the test pattern with the write data (WRITE2) of the RAM and displays the
results.
5. DUMP :Dump the data stored in ROM.
6. CHKSUM :Calculate SUM and XOR of RAM connected and display them.
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