Casio CSF-5350, CSF-5550, CSF-5750 Service Manual

(without price)

INDEX

CSF-5350/5550/5750 (ZX-889)

JUN. 1996

CSF-5750

R

CONTENTS

FEATURES..............................................................................................................................1

SPECIFICATIONS...................................................................................................................2

GENERAL GUIDE ...................................................................................................................4

BATTERY REPLACEMENT....................................................................................................7

RESET OPERATION...............................................................................................................8

TO SAVE THE DATA ..............................................................................................................9

PIN FUNCTION......................................................................................................................10

DIAGNOSTIC PROGRAM.....................................................................................................11

ERROR MESSAGE ...............................................................................................................14

SCHEMATIC DIAGRAMS .....................................................................................................15

EXPLODED VIEW .................................................................................................................19

PARTS LIST ..........................................................................................................................20

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.

Selectable Main Menu Format

Choose between a graphic desktop or an icon list for the Main Menu from which you can select the mode
you want.

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 Function

Look up confidential information using a secret password.

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.

Note

• This unit is equipped with a demonstration feature, which is activated before the unit is shipped from
the factory. Be sure to turn the demonstration off before using the unit for normal operarion.
If you don't, any display color balance settings you make will be cleared every time you turn the unit off.

— 1 —

SPECIFICATIONS

MEMORY CAPACITY

Memory capacity differs according to model. The following shows the memory capacity for each available
model.

Model Memory
CSF-5350 64K bytes
CSF-5550 128K bytes
CSF-5750 256K bytes

The following shows the number or items that can be stored in each model (CSF-5350/5550/5750).

TELEPHONE DIRECTORY

Approximately 2,700/5,700/11,600, under the following conditions:

8-character name
10-character telephone number

Approximately 1,300/2,900/5,900, under the following conditions:

8-character name
10-character telephone number
20-character address

BUSINESS CARD DIRECTORY

Approximately 700/1,500/3,000, 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 2,600/5,400/11,100, 20-character memos.

TO DO

Approximately 1,600/3,400/7,100, under the following conditions:

20 character description
Deadline set

SCHEDULE KEEPER

Approximately 1,500/3,200/6,500, under the following conditions:

20 character description
Illustration used
Starting time specified, alarm time set

Approximately 2,000/4,100/8,500, under the following conditions:

20 character description
Illustration not used
Starting time specified, no alarm time

REMINDER

Approximately 3,300/6,900/14,200, under the following conditions:

10 character description
Alarm time set

Approximately 3,700/7,800/16,000, under the following conditions:

10 character description
No alarm time

— 2 —

EXPENSE MANAGER

Approximately 1,800/3,800/7,700, 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 memory area; 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: Three lithium batteries (CR2032)
Current consumption:

ON: 1.6 mA or under (TEL mode)
OFF: 13 µA or under

Low battery message: 7.2 V ± 2.0%
Forced power off: 6.7 V ± 2.0%
Battery life:

Main: Approximately 90 hours continuous display in Telephone Directory;

approximately 70 hours repeating one minute of input and 10 minutes of
display in Telephone Directory

Power consumption: 0.08 W
Auto power off: Approximately 6 minutes after last key operation
Operating temperature: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions:

Unfolded: 8.65H × 150W × 160D mm (5/16"H × 57/8"W × 65/16"D)

Folded: 18.8H × 150W × 80D mm (3/4"W × 57/8"W × 31/8"D)

Weight: 150 g (5.3 oz) including batteries

— 3 —

GENERAL GUIDE

OFF key —
Press this key
to turn power
OFF.

ON key —
Press this key
to turn power
ON.

Display

Cursor Key
Pad

Keyboard

COLOR SELECT
keys

ABOUT THE DEMONSTRATION FEATURE...

The CSF Unit comes with a Demonstration feature that shows sample screens and input data for each of
its functions. When the Demonstration feature is turned on, the CSF Unit automatically shows the various
demonstration screens in sequence each time you turn it on.

• You can interrupt an ongoing demonstration at any time by pressing any key.

TO TURN THE DEMONSTRATION FEATURE ON AND OFF

1. While the main menu is on the display, press FUNC.

2. Press 1 to select SYSTEM.

3. Press to display the second SYSTEM Menu.

4. Press 2 to select START UP.

5. Use and to move the pointer to DEMO.

6. Use and to turn the Demonstration feature on and off.

7. After making the setting you want, press OK.

Note

• The demonstration feature screens will not be displayed when the Do Today feature is turned on.

MENU key

SELECTING A MAIN MENU FORMAT

You can select either a graphic desktop or an icon list as the Main Menu format. You get the same features
and functions, regardless of the Main Menu format you select.

Important!

• All of the examples in this manual are illustrated using the icon list, and all references to the Main Menu
apply to both the graphic desktop and the icon list, unless otherwise specified.

— 4 —

ICON LIST FORMAT

The Main Menu icon list format provides two screens of icons from which you can choose the function you
want.

1 2 3

4 5 6 7

1 Telephone Directory 4 To Do
2 Business Card Directory 5 Schedule Keeper
3 Memo 6 Calendar

7 Expense Manager

1 2 3

4 5 6

1 Reminder 4 Daily Alarm
2 Home Time 5 Calculator
3 World Time 6 Secret Memory Area

TO ENTER A MODE
Use the , , , and cursor keys to move the highlighting to the mode you want to select and press

OK. Or you can simply input the number in the upper left corner of an icon to directly enter the corresponding
mode without pressing OK.

TO CHANGE FROM PAGE 1 TO PAGE 2

• While any icon of Page 1 is highlighted, press or MENU to change to Page 2.

• While an icon in the bottom row of Page 1 is highlighted, press to change to Page 2.

• While the Expense Manager icon is highlighted, press to change to Page 2.

TO CHANGE FROM PAGE 2 TO PAGE 1

• While an icon in the top row of Page 2 is highlighted, press to change to Page 1.

• While the Reminder icon is highlighted, press to change to Page 1.

• While any icon of Page 2 is highlighted, press or MENU to change to Page 1.

DESKTOP FORMAT

Calendar, Schedule 
Keeper, Reminder and
Expense Manager

Home Time, World
Time, and Alarm

Telephone Directory
and Business Card 
Directory


To Do

— 5 —

Calculator

Secret Drawer

Memo

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.

• 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

ADJUSTING THE COLOR BALANCE

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 COLOR BALANCE

1. While the desktop is on the display, press FUNC.

2. Press 1 to select SYSTEM.

3. Press to display the second SYSTEM menu.

4. Press 1 to select COLOR BALANCE.

Pointer (currently
selected item)

(ORG)
(BLU)
(GRN)
INITIALIZE

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 .

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.

Note

• Temperature changes can cause changes in background color and the tint of display colors .

— 6 —