—
20
—
No.
OPERATION
DISPLAY
NOTE
22
1
23
(After few seconds)
24
25
26
ON
27
2
28
2
MEMORY
3 WR2
4 READ2
1 WR1
5 DUMP
2 READ1
6 CHKSUM
WRITE1
1.
Remove the main batteries.
2.
Measure the voltage be-
tween T16 (GND) and T17
(VDD).
3.
Check the voltage is higher
than 2 [V].
4.
Set the main batteries.
Check if timer is
working.
(Backup voltage
check)
00:00:00
TEST
2 MEMORY
MENU
3 KEY
4 BUZZER
1 DISP
5 EXT
MEMORY
3 WR2
4 READ2
1 WR1
5 DUMP
2 READ1
6 CHKSUM
EXECUTING
1.
Turn the slide switch off.
2.
Push the P-button.
3.
Turn the slide switch on .
RAM check
Содержание LX-571AT
Страница 1: ...JAN 1993 R without price SF 4300A LX 571AT SF 4600 LX 571ET FT INDEX...
Страница 3: ...1 1 SCHEMATIC DIAGRAM 1 1 MAIN PCB...
Страница 4: ...2 1 2 KEY MATRIX...
Страница 23: ...21 No OPERATION DISPLAY NOTE 29 Check sound COMPLETE 32KB In case of SF 4300A COMPLETE 64KB In case of SF 4600...
Страница 28: ...26 11 PCB VIEW TEST PADS T16 T37...
Страница 29: ...27 12 ASSEMBLY VIEW...
Страница 30: ...29 13 PARTS LIST SF 4300A SF 4600...
Страница 31: ...30...
Страница 32: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...
