Casio SF-5580E, SF-5780E, SF-5980E Service Manual
(without price)
SF-5580E/5780E/5980E (ZX-877)
JAN. 1997
R
CONTENTS
1. GENERAL GUIDE, RESET ORERATION & BATTERY REPLACEMENT --------1
2. SPECIFICATIONS -------------------------------------------------------------------------------- 7
3. DATA COMMUNICATIONS -------------------------------------------------------------------- 9
4. ERROR MESSAGES--------------------------------------------------------------------------- 13
5. OPERATION CHECK -------------------------------------------------------------------------- 14
6. SCHEMATIC DIAGRAMS
6-1.Z876-1 ASS’Y*5 ~ *7 (1/4) -------------------------------------------------------------- 17
Z876-1 ASS’Y*5 ~ *7 (2/4) -------------------------------------------------------------- 18
Z876-1 ASS’Y*5 ~ *7 (3/4) -------------------------------------------------------------- 19
Z876-1 ASS’Y*5 ~ *7 (4/4) -------------------------------------------------------------- 20
6-2.Z876-2 ASS’Y (1/2) ----------------------------------------------------------------------- 21
Z876-2 ASS’Y (2/2) ----------------------------------------------------------------------- 22
7. LSI PIN FUNCTION----------------------------------------------------------------------------- 23
8. DISASSEMBLY---------------------------------------------------------------------------------- 24
9. PARTS LIST -------------------------------------------------------------------------------------- 27
10. EXPLODED VIEW ------------------------------------------------------------------------------ 30
1. GENERAL GUIDE, RESET OPERATION & BATTERY REPLACEMENT
Mode key
Memory keys
Display
ON/OFF key
Mode keys
Light key
Function key Alpha keyboard
ESC key
10-key pad
Operator keys
Display Change key
Cursor keys
Scroll/Search keys
■ Display
When lighting is dim, you can turn on an EL (electro-luminescent) backlight for easier viewing.
To turn on the EL backlight
Press the LIGHT key to light up the display for about 15 seconds. Pressing LIGHT while the EL
backlight is on turns it off.
Display Indicators
B
~
N
1 Telephone Directory Mode
2 Memo Mode
3 To Do Mode
4 Reminder Mode
5 Schedule Keeper Mode
6 Calendar Mode
7 Expense Manager Mode
8 Home Time/World Time Mode
9 Calculator Mode
0 Conversion Modes
A Game Modes
B Indicates data above
1
234567 890A
C SHIFT key operation
D Upper-case input
E CODE key operation
F NEW/EDIT screen
G Index display
H Data display
I Snooze feature activated
J Daily alarm on
K Key sound on
L Memory locked
M Low battery warning
N Indicates data below
— 1 —
■ All-Reset
Use the following procedure to reset the unit to its initial settings.
Important!
• Do not use a very sharp pencil or other object to press the RESET button.
• Be sure to reset the unit before using it for the first time.
• Perform the reset operation only after main batteries and back-up battery are correctly installed.
• Be sure to press the RESET button after loading main batteries for the first time or if the previous
set of batteries went dead.
To start the all-reset operation
1. Turn power off.
2. Press the RESET button on the back of the Digital Diary with a thin, pointed object.
3. Now you should press Y for “yes” or N for “no” in accordance with the conditions described below.
When to press Y for “yes”
• When this is the first time you are using the unit.
• When you want to reset the unit and clear all data and settings.
• When you are resetting the unit after a data error (page 13).
1. Press Y in response to the message that appears on the display when you start the all-reset
operation.
2. Press OK to reset the Digital Diary or ESC to abort.
• At this time the message “SET TIME!” appears.
• After about two seconds, the Home Time screen appears.
3. Press FUNC, select “Time set”, and then use the procedure on page 18 of Owner’s Manual to set
the Home Time.
• If you turn power off without setting the Home Time, the “SET TIME!” message appears the next
time you turn power on. The Digital Diary will not operate properly until you set the Home Time.
When to press N for “no”
• After replacing the main batteries.
• When you are not resetting the unit to clear all data and settings.
• When you are not resetting the unit after a data error (page 13).
1. Press N in response to the message that appears on the display when you start the all-reset
operation.
• At this time the message “SET TIME!” appears.
• After about two seconds, the Home Time screen appears.
— 2 —
2. Press FUNC, select “Time set”, and then use the procedure on page 18 of Owner’s Manual to set
the Home Time.
• If you turn power off without setting the Home Time, the “SET TIME!” message appears the next
time you turn power on. The Digital Diary will not operate properly until you set the Home Time.
• Following are the initial settings of the unit after you perform the all-reset operation.
Home Time: New York
JAN 1, 1996 (MON)
12:00 AM
12-hour format
World Time: London
Daily Alarm: 12:00 AM
Sound: Daily alarm — OFF
Key — ON
Messages: English
Character input: CAPS — OFF
■ Power Supply
Your Digital Diary is powered by two AAA-size batteries, and its memory is protected by a single
CR2032 lithium battery.
Low battery Warning
The message, “MAIN BATTERIES WEAK! REPLACE THEM! UNIT WILL NOT TURN ON AGAIN!”
appears when battery power is low. Replace the main batteries immediately after this message appears. After replacement of the main batteries, execute RESEToperation. (refer to 4 page)
Important!
• After the low battery message appears on the display, the unit automatically turns off in about 10
seconds and will not turn back on again until you replace batteries.
• Never replace main batteries while the Digital Diary is turned on (while there are figures on the
display).
• There is not low battery warning for the back-up battery. Be sure to replace the back-up battery
once every 5 years.
• Be sure you keep a separate copy of all important data that you store in the Digital Diary.
Battery Precautions
Incorrectly using batteries can cause them to burst or leak, possibly damaging the interior of the Digital
Diary. Note the following precautions.
• Be sure that the positive (+) side of each battery is facing in the correct directions.
• Never mix batteries of different types.
• Never mix old batteries and new ones.
• Do not expose batteries to direct heat, let them become shorted, or try to take them apart.
• Never leave dead batteries in the battery compartment.
• Remove batteries if you do not play to use the unit for a long time.
• Replace batteries at least once every five years, no matter how much you use the unit during that
period.
• Never try to recharge the batteries that come with the unit.
• Should a battery leak, clean out the battery compartment of the unit immediately, taking care to
avoid letting battery fluid come into direct contact with your skin.
Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately.
— 3 —
To replace the main batteries
Important!
• Do not remove the main batteries from the Digital Diary while the back-up battery is removed.
• Be sure to replace both batteries with two new ones. Do not mix an old battery with a new one.
• Be sure to press the RESET button (page 2) after loading main batteries for the first time or if the
previous set of batteries went dead.
1. Press OFF to turn power off.
2. Remove the screw that holds the battery compartment cover in place and open the cover.
RESET
3. Remove both old batteries and replace them with new ones.
• Make sure that the positive (+) and negative (–) ends are facing correctly.
4. Replace the battery compartment cover and secure it with its screw.
• Take care that you do not overtighten the screw.
5. Press the RESET button.
• This causes the message “ARE YOU USING A NEW UNIT FOR THE FIRST TIME (Y/N)?” to
appear. Be sure to press N in response to this message (pressing Y will delete all data in memory).
Next, continue with the procedures in the section title “All-Reset” on page 2.
To replace the back-up battery
Important!
• Do not remove the back-up battery from the Digital Diary while the main batteries are removed.
• Be sure to replace the back-up battery at least once every 5 years. Otherwise, you run the risk of
losing data stored in memory.
1. Press OFF to turn power off.
2. Remove the screw that holds the back-up battery compartment cover in place and open the cover.
RESET
— 4 —
3. Insert a thin, pointed object into (A) and remove the old battery.
(A)
4. Load a new battery into the compartment, making sure that its positive side is facing up (so you can
see it).
5. Replace the battery compartment cover and secure it with its screw.
• Take care that you do not overtighten the screw.
■ Turning Power On and Off
Press ON/OFF to turn power on and off.
Important!
• If nothing appears on the display when you turn on power, it means that the main batteries are low.
Replace the batteries (page 4) and press the RESET button to resume normal operation.
Auto Power Off Function
The unit automatically turns power off if you do not press any key for about three minutes. Any alarms
you set still sound, even if power is turned off.
■ Function Menus
• Pressing FUNC displays a function menu, whose contents differs depending on the mode.
• Pressing SHIFT FUNC displays a function menu of general system settings (system function menu).
• Input the number of the left of the function you want to use to select it.
• To exit from a function menu, press ESC.
■ System Language
Your Digital Diary is capable of producing messages in any one of three languages (English, German,
Italy).
To select the system language
1. Press SHIFT FUNC and then select “Language”.
2. Press the number key that corresponds to the language that you want to use.
• To select “ENGLISH”, you would press 1.
• The system language automatically changes to English whenever you perform the RESET operation (page 2).
Note
• In this manual, all display messages are shown in English.
■ Display Contrast
Use the following procedure to make the figures on the display darker or lighter.
To adjust display contrast
1. Press SHIFT FUNC and then select “Display contrast”.
2. Use O and P to make display images darker or lighter.
3. Press OK to quit.
— 5 —
■ Key Input Sound
When the key input sound is turned on, your Digital Diary emits a beep each time you press one of its
keys.
To turn key input sound on and off
1. Press SHIFT FUNC and then select “Key tone.”
Currently selected setting
2. Use O and P to turn the key input sound on and off.
• The indicator is on the display while the key input sound is on.
3. Press OK to quit.
■ Destructive Backspace
When destructive backspace is turned on, the character at the cursor position is deleted when you
press the BS key.
To turn destructive backspace on and off
1. Press SHIFT FUNC and then select “Backspace”.
2. Use O and P to turn destructive backspace on and off.
3. Press OK to quit.
— 6 —
2. SPECIFICATIONS
Model: SF-5580E/SF-5780E/SF-5980E
Main Modes:
Telephone Directory, Memo, Schedule Keeper, To Do, Expense Manager, Reminder, Calendar, Home
Time, World Time, Calculator, Conversion (metric/currency) and Game (Poker/Blackjack)
Data storage:
Storage and recall of telephone, memo, schedule, to do, expense, reminder data; calendar display;
editing; memory status display
Clock:
World time; reminder alarm; schedule alarm; daily alarm; accuracy under normal temperatures: ±3
seconds average
Calculation:
12-digit arithmetic calculations; arithmetic constants (+, –, ×, ÷); independent memory; percentages;
square roots; other mixed calculations
General:
Display element: 26-column × 8-line LCD
Memory capacity: SF-5580E: 128 KB
SF-5780E: 256 KB
SF-5980E: 512 KB
Main component: LSI
Power supply:
Main: Two AAA-size batteries (Type: LR03 (AM4))
Back-up: One CR2032 lithium battery
Battery life:
Main: In Telephone Mode, approximately 100 hours continuous display;
approximately 70 hours with 5 minutes operation and 55 minutes
continuous display per hour; approximately 60 hours with 5 minutes operation and 52 minutes continuous display, and 3 minutes
backlight operation per hour
Back-up: 5 years if main batteries are replaced as soon as they become
weak. 6 months if dead main batteries are left in the unit.
Power consumption: 0.25 W
Current consumption:
Main (Input voltage = 3.0 V): Telephone top menu (Light from EL doesn't shine)-
3.9 mA (TYP.)/4.8 mA (MAX.)
Telephone top menu (Light from EL shines)27 mA (TYP.)/38 mA (MAX.)
OFF- 90 µA (TYP.)/120 µA (MAX.)
Back-up (Input voltage = 3.0 V): 18 µA (TYP.)/40 µA (MAX.)
Auto power off: Approximately 3 minutes after last key operation
Operating temperature: 0 °C ~ 40 °C (30 °F ~ 104 °F)
Dimensions:
Unfolded: 8.8H × 163W × 169D mm (3/8"H × 67/16"W × 65/8"D)
Folded: 21.5H × 163W × 91.5D mm (7/8"H × 67/16"W × 35/8"D)
Weight: 251 g (8.9 oz) including batteries
— 7 —
■ Memory Capacity
Memory capacity differs according to model.
Model Memory
SF-5580E: 128 Kbyte
SF-5780E: 256 Kbyte
SF-5980E: 512 Kbyte
The following shows the number of items that can be stored in each model.
Telephone Directory
8-character name, 10-character Phone 1 number
SF-5580E/SF-5780E/SF-5980E: 4,000/9,000/19,000
8-character name, 10-character Phone 1 number, 20-character address
SF-5580E/SF-5780E/SF-5980E: 2,000/4,500/9,500
Memo
20-character memo
SF-5580E/SF-5780E/SF-5980E: 3,400/7,700/16,000
To Do
20-character description
SF-5580E/SF-5780E/SF-5980E: 3,200/7,200/15,200
Schedule Keeper
20-character description, alarm time setting
SF-5580E/SF-5780E/SF-5980E: 2,900/6,500/13,500
Reminder
10-character description
SF-5580E/SF-5780E/SF-5980E: 5,000/11,250/23,800
Expense Manager
10-character description
SF-5580E/SF-5780E/SF-5980E: 3,500/7,900/18,600
— 8 —
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