CONTENTS
1.
SCHEMATIC DIAGRAM................................................................................................ 1
2.
SPECIFICATIONS ......................................................................................................... 5
3.
TO REPLACE THE BATTERY ...................................................................................... 6
4.
ERROR MESSAGE ....................................................................................................... 7
5.
TO RESET THE DIGITAL DIARY ................................................................................. 7
6.
TO SAVE THE DATA TO OTHER MACHINE ............................................................... 8
7.
TO CHECK THE MEMORY CAPACITY ...................................................................... 11
8.
DISASSEMBLY ........................................................................................................... 12
9.
BLOCK DIAGRAM ...................................................................................................... 14
10.
CIRCUIT EXPLANATIONS
10-1.
System chart ................................................................................................. 15
10-2.
Power supply circuit .................................................................................... 16
10-3.
Battery voltage detection ............................................................................ 19
10-4.
CPU pin description (
µ
PD3055GF002-2BA) ............................................... 21
10-5.
Gate array pin descriptions (
µ
PD65005G-452-22) ..................................... 21
10-6.
Power supply chip IC pin descriptions (SC371015FU) ............................. 21
10-7.
Character generator ROM pin descriptions (HD62063B01) ..................... 22
10-8.
Operation program ROM pin descriptions (
µ
PD23C4001EBGW-301) ..... 23
10-9.
RAM pin descriptions (
µ
PD43256AGU-10/12/15LL) .................................. 23
10-10.
RAM pin descriptions (HM62L864LFP-12MRL) ......................................... 23
11.
DIAGNOSTIC OPERATION ........................................................................................ 24
12.
TROUBLE SHOOTING ................................................................................................ 29
13.
PARTS LIST ................................................................................................................ 32
14.
PCB VIEW ................................................................................................................... 34
15.
ASSEMBLY VIEW ....................................................................................................... 35
Summary of Contents for SF-8350
Page 1: ...SF 8350 LX 572 JUNE 1993 R without price...
Page 3: ...1 1 SCHEMATIC DIAGRAM 1 1 Main Block...
Page 4: ...2 1 2 Display Block...
Page 5: ...3 1 3 Key Matrix...
Page 14: ...13...
Page 33: ...32 13 PARTS LIST SF 8350...
Page 34: ...33...
Page 35: ...34 14 PCB VIEW SF 8350...
Page 36: ...35 15 ASSEMBLY VIEW SF 8350...
Page 37: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...
