—
29
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Operation
Display
Note
TIME DISPLAY
00:00:XX
TEST
2 MEMORY
MENU
3 KEY
4 BUZZER
1
DISP
5 I/F
RAM check
To return to the
TEST MENU,
press .
MEMORY
3 WR2
4 READ2
1
WR1
5 DUMP
2
READ1
6 CHKSUM
Operation
Display
Note
Shows dots at
corners.
Check timer.
Memory Check
The functions of the numbered items on the display include:
1. Writes the test pattern in the ROM to the RAM area. (Test pattern1: Incremental order 00,
01, and so on)
2. Compares the test pattern with the write data (WRITE1) of the RAM and displays the
results.
3. Writes the test pattern in the ROM to the RAM area. (Test pattern2: Decremental order
FF, FE, and so on)
4. Compares the test pattern with the write data (WRITE2) of the RAM and displays the
results.
ESC
WRITE1
( or WRITE2 )
Test patten1 (or 2)
is written into RAM.
6
7
ESC
2
1
( or 3 )
Summary of Contents for LX-551AQ
Page 1: ...R SF 5300E LX 551AQ JAN 1995 with price SF 5300E...
Page 3: ...1 1 SCHEMATIC DIAGRAM 1 1 MAIN PCB...
Page 4: ...2 1 2 KEY MATRIX 1...
Page 37: ...MA0200651A...
