JUN. 1995
R
(with price)
SF-4600RS(ZX-860AT)
SF-4900RS(ZX-860ET)
SF-4600RS
SF-4900RS
CONTENTS
1.
SCHEMATIC DIAGRAM .................................................................................................... 1
1-1. MAIN PCB .................................................................................................................. 1
1-2. KEY MATRIX ............................................................................................................. 2
2.
SPECIFICATIONS ............................................................................................................. 3
3.
TO REPLACE THE BATTERIES ....................................................................................... 5
4.
DATA TRANSFER ............................................................................................................. 6
5.
OPERATION REFERENCE ............................................................................................. 10
5-1. RESET OPERATION ............................................................................................... 10
5-2. TO ADJUST THE DISPLAY CONTRAST ............................................................... 11
5-3. TO CHECK THE MEMORY STATUS ...................................................................... 11
5-4. THE SOUND MENU ................................................................................................. 11
6.
LSI, IC (Pin function) ...................................................................................................... 12
6-1. CPU .......................................................................................................................... 12
6-2. RAM:CXK58257AM (LSI2,LSI3) ............................................................................. 13
6-3. OPERATION PROGRAM ROM PIN DESCRIPTIONS (
µPD23C1001) ................... 13
6-4. RAM PIN DESCRIPTIONS (CXK581000AM) .......................................................... 14
6-5. VOLTAGE REGULATOR:S-81253SGUP (REG1) .................................................. 14
6-6. VOLTAGE DETECTOR:RH5VL46CA (DET1)......................................................... 14
7.
TROUBLESHOOTING ..................................................................................................... 15
8.
HARD CHECK ................................................................................................................. 18
9.
ASSEMBLY VIEW ........................................................................................................... 23
10. PARTS LIST .................................................................................................................... 25
-- 1 --
1-1. MAIN PCB
1.
SCHEMATIC DIAGRAMS
-- 2 --
1-2. KEY MATRIX
-- 3 --
2.
SPECIFICATIONS
Data storage:
Storage and recall of telephone, memo, schedule, reminder data; calendar display; secret area; editing;
memory status display.
Clock:
World time; reminder alarm; schedule alarm; daily alarm; accuracy under normal temperatures:
±3
seconds average.
Calculation:
10-digit arithmetic calculations; arithmetic constants (+, ,
×, ÷); independent memory; percentages;
square roots; 20-digit approximations; date calculations; other mixed calculations.
General:
Display element:
16-column
× 4-line LCD
Memory capacity:
SF-4600RS:
64 KB
(61282 bytes)
SF-4900RS:
128 KB (126818 bytes)
Main component:
LSI
Power supply:
2 lithium batteries (CR2032)
Power consumption:
0.05W
Battery life:
Approximately 350 hours continuous operation in Telephone Directory
Approximately 300 hours repeating one minute of input and 10 minutes of display in Telephone
Directory
Approximately 12 months for memory backup
Auto power off:
Approximately 6 minutes after last key operation
Operating temperature: 0
°C ~ 40°C (32°F ~ 104°F)
Dimensions:
Unfolded:
10.6H
× 141W × 159.5Dmm (3/8"H × 5 1/2"W × 6 1/4"D)
Folded:
12.4H
× 141W × 82Dmm (1/2"H × 5 1/2"W × 3 1/4"D)
Weight:
105 g (3.7 oz)
Current consumption:
Storage Capacity:
The 64K(SF-4600RS)/128K(SF-4900RS) bytes memory capacity includes a 61282(SF-4600RS)/
126818(SF-4900RS) bytes user area. The following shows examples of what this means for the
storage of data in each mode.
Telephone Directory:
Approximately 2918(SF-4600RS)/6038(SF-4900RS), under the following conditions:
8-character name
10-character telephone number
Power switch
TYP. [
µA]
MAX [
µA]
OFF
11
--
ON
560
600