Casio CSF-4450, CSF-4650, CSF-4950 Service Manual
(without price)
INDEX
CSF-4450/4650/4950(ZX-855✽E/✽F)
(Version ✽E and ✽F)
OCT. 1995
Caution:CSF-4✽50 includes 2 kinds of version-✽E and version-✽F. The functions are exactly the same
between two versions. As for details, refer to page-1.
R
CONTENTS
FEATURES ..............................................................................................................................1
SPECIFICATIONS ...................................................................................................................2
GENERAL GUIDE ...................................................................................................................5
BATTERY REPLACEMENT ....................................................................................................6
RESET OPERATION...............................................................................................................7
TO SAVE THE DATA ..............................................................................................................9
PIN FUNCTION......................................................................................................................10
DIAGNOSTIC PROGRAM.....................................................................................................11
ERROR MESSAGE ...............................................................................................................14
SCHEMATIC DIAGRAMS .....................................................................................................15
EXPLODED VIEW .................................................................................................................23
PARTS LIST ..........................................................................................................................24
VERSION TABLE
Model Note Capacity PCB ass'y TAB-LSI
Version
CSF-4450 Version✽E AE Standard 32KB Z855-1E ASS'Y (MC100012✽1) OC3015-F1 SUB ASS'Y
CSF-4650 EE Standard 64KB Z855-1E ASS'Y (MC100012✽2)
FE B.O.S.S.
CSF-4950 IE Standard 128KB Z855-1E ASS'Y (MC100012✽3)
JE B.O.S.S.
CSF-4450 Version✽F AF Standard 32KB Z855-1 ASS'Y (MC100011✽1) COF3011-F1 SUB ASS'Y
CSF-4650 EF Standard 64KB Z855-1 ASS'Y (MC100011 ✽2)
FF B.O.S.S.
CSF-4950 IF Standard 128KB Z855-1 ASS'Y (MC100011✽3)
JF B.O.S.S.
CSF-4✽50 includes 2 kinds of version-✽E and version-✽F as shown in the table above. Although the TAB-LSI is different
between two versions the functions are exactly the same.
A difference of two versions (✽E and ✽F) cannot be confirmed from the appearance, but it is recognized by production
number on back of the backup battery cover as shown below.
Backup Battery Cover
RESET
5M 111A
XX XXXE: Version-]E
XX XXXA: Version-]F
When the last letter of production number is E it is version-]E. When A, version-]F.
FEATURES
3-color display
The display shows data in three colors: orange, blue and green. Different colors can be used to highlight
specific dates in the Calendar, and even the color of text data can be specified.
Desktop Menu System
Simply point to the item that represent the function you want to use and press a button.
Do Today Function
Every time you turn on the unit, any Schedule Keeper items scheduled for that date appear on the
display.
Powerful data bank functions
Telephone Directory, Business Card Directory, Memo, To Do, Expense Manager, Reminder, and
Schedule Keeper.
Secret Drawer
A convenient place to lock up confidential information using a secret password.
— 1 —
Calendar - Schedule Keeper - Reminder - To Do linking
Reminder and To Do items are automatically displayed in the applicable Schedule Keeper dates.
Markers appear on the Calendar display to indicate dates for which Schedule Keeper, Reminder, and
To Do items are scheduled.
Timepiece with Home time and World Time
Dual timekeeping for two different locations.
Powerful alarm functions
In addition to the standard daily alarm, you can also set alarms for Schedule Keeper, Reminder, and
To Do items.
Calculator
A 12-digit arithmetic calculator is just the thing for those quick, on-the-go calculations.
Data Communication
Exchange data with another CSF Unit or with a CASIO SF Unit.
SPECIFICATIONS
Memory Capacity
Memory capacity differs according to model. The following shows the memory capacity for each
available model.
Model Memory
CSF-4450 32K bytes (27,337 bytes)
CSF-4650 64K bytes (60,105 bytes)
CSF-4950 128K bytes (125,641 bytes)
The following shows the number or items that can be stored in each model (CSF-4450/4650/4950).
Telephone Directory
Approximately 1,200/2,700/5,700, under the following conditions:
8-character name
10-character telephone number
Approximately 600/1,300/2,900, under the following conditions:
8-character name
10-character telephone number
20-character address
Business Card Directory
Approximately 300/700/1,500, under the following conditions:
10-character employer name
8-character personal name
10-character telephone number
10-character position
10-character department
20-character address
Memo
Approximately 1,100/2,600/5,400, 20-character memos.
To Do
Approximately 700/1,600/3,400, under the following conditions:
20 character description
Deadline set
— 2 —
Schedule Keeper
Approximately 700/1,500/3,200, under the following conditions:
20 character description
Illustration used
Starting time specified, alarm time set
Approximately 900/2,000/4,100, under the following conditions:
20 character description
Illustration not used
Starting time specified, no alarm time
Reminder
Approximately 1,500/3,300/6,900, under the following conditions:
10 character description
Alarm time set
Approximately 1,700/3,700/7,800, under the following conditions:
10 character description
No alarm time
Expense Manager
Approximately 800/1,800/3,800, under the following conditions:
10 character description
Expense type and payment type set
Main Modes:
Telephone Directory, Business Card Directory, Memo, Schedule Keeper, To Do, Expense Manager,
Reminder, Calendar, Home Time, World Time and Calculator
Data storage:
Storage and recall of telephone, business card, memo, schedule, to do, expense, reminder data;
calendar display; secret drawer; editing; memory status display
Clock:
Worldtime; reminder alarm; schedule alarm; to do alarm; daily alarm; accuracy under normal temperatures: ±3 seconds average
Calculation:
12-digit arithmetic calculations; arithmetic constants (+, -, ×, ÷); independent memory; percentages;
square roots; 24-digit approximations; date calculations; other mixed calculations
General:
Display element: 16-column × 4-line LCD
Main component: LSI
Power supply:
Main: Two AAA-size batteries (Type: R03 (UM-4) or LR03 (AM4))
Back-up: One CR2032 lithium battery
Current consumption:
ON: 4 mA or under (TEL mode)
OFF: 25 µA or under
Backup Battery: 10 µA or under
Low Battery message:
Main battery: 2.5 V ± 2.5%
Backup battery: 2.6 V ± 2.5%
Forced power off:
2.3 V ± 2.5%
— 3 —
Battery life:
Main: Approximately 100 hours continuous display in Telephone Directory (approxi-
mately 180 hours on type LR03 (AM4)); approximately 80 hours repeating one
minute of input and 10 minutes of display in Telephone Directory (approximately
150 hours on type LR03 (AM4))
Back-up: 5 years if main batteries are replaced as soon as they become weak. 2 year if
dead main batteries are left in the unit.
Power consumption: 0.06 W
Auto power off: Approximately 6 minutes after last key operation
Operating temperature: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions:
Unfolded: 10.5H × 145W × 176.5D mm (7/16"H × 511/16"W × 615/16"D)
Folded: 14.2H × 145W × 95D mm (9/16"W × 511/16"W × 33/4"D)
Weight: 142.2 g (5 oz) including batteries
— 4 —
GENERAL GUIDE
OFF key - Press this key to turn power off.
ON key - Press this key to turn power on.
Display
MENU key
About the desktop...
The desktop gives you point-and-select access to the data management features of the CSF Unit.
Whenever you want to return to the desktop, simply press the MENU button.
Calendar, Schedule
Keeper, Reminder and
Expense Manager
Telephone Directory
and Business Card
Directory
COLOR SELECT keys
Home Time, World
Time, and Alarm
To Do
Memo
Cursor Key Pad
Keyboard
Calculator
Secret Drawer
• Note that one of the icons on the desktop is flashing, This means that the icon is selected.
How to use the desktop
1. Use the cursor keys to move the flashing around the desktop until the one you want is selected
(flashing).
2. After selecting an icon, press OK to access the functions of that icon.
• Selecting some icons (like the Clock and Telephone) cause another selection screen to appear.
• Details on actually using the features and functions that you access from the desktop are described
in the other sections of this manual.
Changing the Desktop Screen's Window Scenery
You can change the scenery that is outside the desktop screen's window to any one of the scenes
shown below. Simply display the desktop screen and press the COLOR SELECT key that corresponds
to the scenery you want to select.
ORG: Night-time city scene
BLU: Daytime city scene
GRN: Beach scene
— 5 —
Adjusting the Display Contrast
The following procedure describes how to adjust the color contrast, which controls the relative darkness
and lightness of each color on the display.
To adjust the display contrast
1. While the desktop is on the display, press FUNC.
2. Press 1 to select
3. Press to display the second
4. Press 1 to select
SYSTEM
.
CONTRAST
SYSTEM
.
menu.
Pointer (currently
selected color)
(ORG)
(BLU)
(GRN)
5. Use and to move the pointer to the color whose contrast you want to set.
6. Use and to adjust the contrast of the currently selected color.
• You can adjust the overall contrast of the display by pressing or .
• Whenever you press one of the COLOR SELECT keys, the color contrast is returned to its initial
default setting.
7. After you finish adjusting the display contrast, press OK.
• Color contrast settings are registered as soon as you make them. Because of this, pressing either
OK or ESC quits the color contrast procedure only. Pressing ESC does not return the color contrast
setting to what is was.
Notes
• Temperature changes can cause changes in background color and the tint of display colors .
• Low battery power can also cause flickering of the display and changes in the tint of display colors.
BATTERY REPLACEMENT
Main Battery
Before replacing the main batteries, note the following precautions:
• Do not remove the main batteries from the CSF Unit while back-up battery is removed.
• Be sure to replace both batteries at the same time, and do not use an old battery with a new one.
<O B G>
1. Press OFF to switch power OFF.
2. Press down at the two locations indicated by , and slide in the direction indicated by the arrow.
∇
Main battery holder
RESET
AAA-size
batteries
— 6 —
3. Remove both old batteries and replace them with two new ones.
• Make sure that the positive (+) and negative (-) ends are facing correctly.
4. Replace the holder.
5. Turn on power.
• The Home Time screen always appears whenever you turn power on for the first time after replacing
batteries.
6. Check the Home Time setting and make changes if necessary.
Back-up Battery
Before replacing the back-up battery, note the following precautions:
• Do not remove the back-up battery from the CSF Unit while main batteries are removed.
• Be sure to replace the back-up battery at least once every five years. Otherwise, you run the risk of
losing data stored in memory.
1. Press OFF to switch power OFF.
2. Remove the screws that hold the back-up battery compartment cover in place, and remove the cover.
RESET
Back-up battery
compartment
cover
3. Insert a thin, pointed object into (A) and remove the old battery.
CR2032 lithium
(A)
battery
RESET OPERATION
1. Press ON to switch power ON.
2. Press the RESET button with a thin, pointed object.
RESET
button
RESET
Warning!
The next step deletes all data stored in the CSF Unit's memory. Make sure that you really want to delete
the data before you continue!
— 7 —
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