(without price)
SF-5580/5780/5980(ZX-876)
AUG. 1996
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 (1/4) ----------------------------------------------------------------------- 17
Z876-1 ASS’Y (2/4) ----------------------------------------------------------------------- 18
Z876-1 ASS’Y (3/4) ----------------------------------------------------------------------- 19
Z876-1 ASS’Y (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 (page 2) 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.
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, French,
Spanish).
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-5580/SF-5780/SF-5980
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-5580: 128 KB
SF-5780: 256 KB
SF-5980: 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 × 163 W × 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-5580: 128 Kbyte
SF-5780: 256 Kbyte
SF-5980: 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-5580/SF-5780/SF-5980: 4,000/9,000/19,000
8-character name, 10-character Phone 1 number, 20-character address
SF-5580/SF-5780/SF-5980: 2,000/4,500/9,500
Memo
20-character memo
SF-5580/SF-5780/SF-5980: 3,400/7,700/16,000
To Do
20-character description
SF-5580/SF-5780/SF-5980: 3,200/7,200/15,200
Schedule Keeper
20-character description, alarm time setting
SF-5580/SF-5780/SF-5980: 2,900/6,500/13,500
Reminder
10-character description
SF-5580/SF-5780/SF-5980: 5,000/11,250/23,800
Expense Manager
10-character description
SF-5580/SF-5780/SF-5980: 3,500/7,900/18,600
— 8 —
3. DATA COMMUNICATIONS
You can transfer data between two CASIO SF-5580,SF-5780, or SF-5980 units, or between your
Digital Diary and a personal computer only. You cannot exchange data with any other CASIO Digital
Diary model. Data communications can be performed while in the Telephone Directory, Memo, Schedule
Keeper, Calender, To Do, Reminder, or Expense Manager Mode.
■ Setting Up for Data Communications
The following describes what you would do to set up for data communications between two Digital
Diary units or between a Digital Diary unit and a personal computer.
To connect to another Digital Diary unit
1. Make sure that the power of both units is turned off.
2. Remove the covers from the data communications jacks on the two Digital Diary units.
3. Connect the two units using the SB-62 cable.
SB-62 cable
Important!
• Be sure to replace the connector covers on the Digital Diary units when you are not perfoming data
communications.
Performing data communications between a Digital Diary unit and a personal computer
You must purchase an optional CASIO Data Communication Package in order to perform data communication between your Digital Diary unit and a personal computer. Please note that there are a
number of different CASIO Data Communication packages to suit various computers and Digital Diary
types. Because of this, you should note the following important points when purchasing a Data Communication Package. If you have any question about which package you need, consult with a expert.
• Make sure the Data Communication Package (FA-127) is designed for you with your particular
model of personal computer.
• For information on how to connect the Digital Diary to a personal computer, see the user’s manual
that comes with the Data Communication Package (FA-127).
■ REMARK: FA-127 is the Personal Computer Link (software and cable unit) for Windows.
— 9 —
To set up the Digital Diary to receive data
1. While any screen is displayed, press FUNC (or SHIFT FUNC) and then select “Receive data”.
• You can perform the above operation in the Telephone Directory, Memo, Schedule Keeper, Calendar, To Do, Reminder, or Expense Manager Mode.
2. Press Y.
• This message indicates that the unit is standing by to receive data.
• To abort the receive operation, press ESC.
• This procedure is the same regardless of whether data is being received from another Digital Diary
unit or from a personal computer.
■ Sending Data
This section tells you how to operate the Digital Diary to send data to another unit or to a personal
computer.
About data transfer types…
There are a number of ways you can transfer data.
All Data Items
With this method, you can send all data items stored in the Telephone Directory, Memo, Schedule
Keeper, Calendar, To Do, Reminder, or Expense Manager Mode.
Mode Data Items
With this method, you can send all data items stored in specific modes (Telephone Directory, Memo,
Schedule Keeper, Calendar, To Do, Reminder, Expense Manager).
In the Schedule Keeper Mode, you can send items that appear on the index display (which you specified using the function menu’s List type item).
One Data Item
With this method, you can send one data item stored in the Telephone Directory, Memo, Schedule
Keeper, To Do, Reminder, or Expense Manager Mode.
Notes
• For Calendar Mode data, you can send highlight data.
• If an alarm (Daily Alarm, Schedule Alarm, or Reminder Alarm) is reached while data is being sent,
the alarm does not sound until the data send operation is complete.
— 10 —
To send one data item
1. Display the data display of the item you want to send.
2. Press FUNC and then select “Send record”.
• A message appears asking if you are ready to send.
3. Press Y to start the send operation, or N to abort.
• To interrupt the send operation at any time, press ESC.
• After the send operation is complete, the display returns to the screen that was on the display
before you started the send operation. Then you can repeat the above procedure to send another
item.
To send all data items in specific modes
1. Press SHIFT FUNC and then select “Send all”.
Pointer (selected file)
Marker (current setting)
2. Use M and N to move the pointer to the mode whose data items you want to send, and then use O
and P to change the setting.
• Data in modes set to “Yes” will be sent, while data in modes set to “No” will not.
3. Press OK.
• A message appears asking if you are ready to send.
4. Press Y to start the send operation, or N to abort.
• To interrupt the send operation at any time, press ESC.
• After the send operation is complete, the display returns to the screen that was on the display
before you started the send operation.
To send Calender data (highlights)
1. In the Calender Mode, press FUNC and then select “Send (Holidays)”.
• A message appears asking if you are ready to send.
2. Press Y to start the send operation, or N to abort.
• To interrupt the send operation at any time, press ESC.
• After the send operation is complete, the display returns to the screen that was on the display
before you started the send operation. Then you can repeat the above procedure to send another
item.
■ Send All Data Items In a Mode
The procedure you should use depends on whether the file whose data items you are sending has
multiple files (Telephone Directory, Memo, To DO, Expense Manager) or not (Schedule, Reminder).
To send all data items from a multiple file mode (Telephone Directory, Memo, To Do, Expense
Manager)
1. Display the initial screen of the mode that contains the data you want to send.
• You can display the initial screen for any file.
— 11 —
2. Press FUNC and then select “Send all files”.
3. Use M and N to move the pointer to the file whose data you want to send, and then use O and P
to change the setting.
• Files set to “Yes” will be sent, while those set to “No” will not.
4. Press OK.
• At this time the message “READY TO SEND (Y/N)?” appears.
5. Press Y to send or N to abort.
• In the Telephone Directory, Memo, and To Do Modes you can also use another method to send all
data items. While the index display or data display is on the screen, press FUNC and then select
“Send all records”. This causes the message “READY TO SEND (Y/N)?” to appear, so press Y to
send or N to abort.
To send all data items from a single file mode (Schedule Keeper, Reminder)
1. Display the initial screen of the mode that contains the data you want to send.
2. Press FUNC and then select “Send all records”.
• At this time the message “READY TO SEND (Y/N)?” appears.
3. Press Y to send or N to abort.
To send listed records in the Schedule Keeper Mode
1. Enter the Schedule Keeper Mode and specify the items you want to send in the index display
contents.
• See “To specify Schedule Keeper Mode index display contents” on this page.
2. While the Schedule Keeper Mode index display is on the screen, press FUNC and then select
“Send listed records”.
• At this time the message “READY TO SEND (Y/N)?” appears.
3. Press Y to send or N to abort.
■ To specify Schedule Keeper Mode index display contents
1. Press SCHEDULE to display the initial Schedule Keeper Mode screen, and then press M, N, , or
to change to the index display.
2. Press FUNC and then select “List type”.
Pointer (selected type)
Marker
(Current setting)
3. Use M and N to move the pointer next to the schedule type you want to change, and then use O
and P to change the setting.
• Schedule types set to “Yes” appear in the index display, while those set to “No” do not.
4. Press OK to quit and return to the index display.
— 12 —
4. ERROR MESSAGES
Data Error Message
The data error message appears whenever the Digital Diary’s internal check discovers a problem with
data stored in memory.
Appearance of the data error message indicates that you must perform the all-reset procedure to
correct the problem. Start out with the procedure under “To start the all-reset operation” on page 2,
and continue with the procedure under “When to press Y for “Yes” on page 2”.
Important!
• Even though you are not using the unit for the first time, you must press Y (for “Yes”) when the unit
asks “ARE YOU USING A NEW UNIT FOR THE FIRST TIME (Y/N)?” in order to reset the unit
after a data error occurs.
If you still have trouble after trying the RESET operation, you may have a hardware problem. If so,
consult with your nearest CASIO dealer.
■ Message Table
Message
NOT FOUND!
PRESS ESC TO QUIT.
MEMORY FULL,
PRESS ANY KEY.
ALARM TIME COINCIDENT!
ALARM TIME ALREADY
PASSED!
DATA COMM. ERROR,
PRESS ANY KEY!
ARE YOU USING A NEW
UNIT FOR THE FIRST TIME
(Y/N)?
CLEAR MEMORY AND SET
UP UNIT FOR OPERATION?
YES (OK)/NO (ESC)
Meaning
Data specified in search operation
does not exist in memory.
No more room in memory for storage of data.
Attempt to set an alarm that is already used for another entry.
Attempt to set an alarm for a time
or data that is already passed.
Error during data communications.
The reset procedure has started.
The reset procedure is in
progress.
Action
Change specification or cancel
search.
Delete unnecessary data items
from memory.
Set a different alarm time or
change the existing alarm time.
Set a different alarm time.
Cancel the operation and try
again.
See page 2.
See page 2.
DATA ERROR! CHECK
YOUR OWNER’S MANUAL
FOR PROCEDURE!
MAIN BATTERIES WEAK!
REPLACE THEM! UNIT WILL
NOT TURN ON AGAIN!
Data corrupted by strong impact,
electrostatic charge, etc..
The main batteries are getting
weak.
— 13 —
See this page.
Replace main batteries immediately (page 4).
5. OPERATION CHECK
REMARKS:
1. Executing this check, the data stored in this Digital Diary disappear. So if you won’t disappear this important data, you should store its data in another Digital Diary (SF-5580/-5780/-
5980) referring to the item 3. Data communications in this manual.
2. You can not put out the light from EL while executing this check.
● LCD CHECK
1 Press RESET button on the rear panel while press-
ing OK button on the front panel.
LCD display appears as shown right.
(figure-1)
figure-1
2 Press OK button four times.
LCD display appears as shown right.
(figure-2)
3 Then press OK button.
LCD display appears as shown right.
(figure-3)
4 Press OK button again.
LCD display appears as shown in the figure-1 again.
● ROM CHECK
5 Wait 4 ~ 5 seconds, then press OK button.
LCD display ROM TEST ROM OK
● RAM CHECK
6 Press OK button.
LCD display ROM TEST ROM OK
RAM TEST
figure-2
figure-3
— 14 —
7 Wait about 45 ~ 50 seconds.
In the case of SF-5580,
LCD display ROM TEST ROM OK
RAM TEST 1 2 8 K OK
In the case of SF-5780,
ROM TEST ROM OK
LCD display RAM TEST 1 2 8 K OK
2N D
RAM TEST 1 2 8 K OK
, or
LCD display ROM TEST ROM OK
RAM TEST 2 5 6 K OK
In the case of SF-5980,
LCD display ROM TEST ROM OK
RAM TEST 5 1 2 K OK
● KEY CHECK
8 Press OK button.
ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST
9 Press any button. For example, press TEL button.
ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST TEL
After pressing any button, LCD displays a letter or a number correspond to its button.
Check all keys (buttons) in this way except to OK button.
● COMMUNICATION CHECK
0 Press OK button.
ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST XXX
1 COMM 2 ECHO
A Prepare another unit, then execute the procedure described above (1 ~ 10).
Another unit’s ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST XXX
1 COMM 2 ECHO
— 15 —
B Connect two units using the SB-62 cable as shown by the item 3. DATA COMMUNICATIONS
(page 9) in this manual.
C Press 2 button on any unit (A).
This unit’s ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST XXX
2 ECHO
D Then press 1 button on another unit (B).
Another unit’s ROM TEST ROM OK
LCD display RAM TEST XXX K OK
KEY TEST XXX
1 COMM 2 ECHO OK
In the case of NG, LCD displays a letter “FAIL”.
If “OK” was displayed, another unit (B) transmitted data to any unit (A).
E Pressing ESC buttons on the both units, return to the condition described in the item 12 .
LCD displays on the both units are the same as display shown in the item 11 .
F Next, try to transmit data from the unit (A) to the unit (B).
G Return to the condition described in the item B using ESC button.
H Pressing ON/OFF button twice, turn these units off.
— 16 —
6. SCHEMATIC DIAGRAMS 6-1. Z876-1 ASS’Y (1/4)
— 17 —
6-1. Z876-1 ASS’Y (2/4)
— 18 —
6-1. Z876-1 ASS’Y (3/4)
— 19 —
6-1. Z876-1 ASS’Y (4/4)
— 20 —
6-2. Z876-2 ASS’Y (1/2)
— 21 —
6-2. Z876-2 ASS’Y (2/2)
— 22 —
)
)
7. LSI PIN FUNCTION
CPU (LC868016A): U1
Pin No. Name I/O Function
1 VDD I Power supply for this CPU
2~65 S1~48,C1~16 O Common signals to LCD
66 V1 O
67 V2 O
68 V3 O Bias power supply to LCD
69 V4 O
70 V5 O
7 1 VLCD O Power supply to LCD
78 VSS — Ground for this CPU
80 P41 O Clock for LCD driver LSI(U2, U3:LC868900)
82 P43 O
84 P46 O Read signal to RAM(U42, U62) and LCD driver LSI(U2, U3:LC868900
85 P47 O Write signal to RAM(U42, U62) and LCD driver LSI(U2, U3:LC868900
87 P71 I Detection of low battery voltage(=2.5V) from IC(U2:S80725)
90 P10 O Serial data output to another unit or a personal computer
91 P11 I Serial data input from another unit or a personal computer
93 P13 O
96 P16 O Control signal for buzzer(H: buzzer-ON/L: buzzer-OFF)
98 P57 O Chip select to LCD driver LSI(U3:LC868900)
99 P56 O Chip select to LCD driver LSI(U2:LC868900)
101 P54 O Clock to IC(U8:74HC273) for the keyboard data latch
102 P53 O Control signal to LCD driver LSI(U2, U3:LC868900)
104 P51 O Address bus to RAM(U42, U62)
105 P50 O Address bus to ROM(U5)
106 VDD1 O Power supply for this CPU
107 P30 I
108 P31 I
109 P32 I
110 P33 I Signals for key assign from keyboard
111 P34 I
112 P35 I
113 P36 I
114 P37 I
115 P00 I/O
116 P01 I/O
117 P02 I/O
118 P03 I/O Address bus to the address data latch IC(U7:74HC373)
119 P04 I/O
120 P05 I/O
121 P06 I/O
122 P07 I/O
123 P20 O
124 P21 O
125 P22 O
126 P23 O Address bus to ROM(U5) and RAM(U42, U62)
127 P24 O
128 P25 O
129 P26 O
130 P27 O
131 ADLC O Control signal to the address data latch IC(U7:74HC373)
132 -EROE O Chip select to ROM(U5)
133 -RST I Reset signal for this CPU and LCD driver LSI(U2, U3:LC868900)
134 XT1 I Timer clock for this CPU
135 XT2 O
136 VSS — Ground for this CPU
137 CF1 I Main clock for this CPU
138 CF2 O
Signal to LCD driver LSI(U2, U3:LC868900)(AC voltage is supplied to LCD by this
signal.)
Control signal to power supply IC(DC/AC inverter IC) for EL (H: EL-OFF/L: EL-ON)
— 23 —
8. DISASSEMBLY
1 Remove two screws then remove the battery cover.
2 Remove three screws.
3 Open the unit and remove two screws behind the display plate.
— 24 —
Display plate
4 Remove Lower cabinet (keyboard).
Lower cabinet
(keyboard)
5 Remove Rubber key and knob.
6 Desolder the wire connected
to the buzzer on the Lower
cabinet (keyboard) from keyboard PCB ass’y.
7 Remove Lower cabinet (display).
Rubber key
Knob
— 25 —
Lower cabinet
(display)
8 Remove screws on PCB shown above then remove PCB ass’y.
Main PCB
(11 screws)
9 Separate upper cabinets.
Keyboard PCB
(13 screws)
REMARK:
Heat seal and wires must be placed inside of the hinge in order for the Lower cabinet (keyboard) to fit
into place.
If heat seal and wires are placed improperly, they are damaged.
Heat seal
Wires (Black/Red)
Hinge
Lower cabinet
— 26 —
9. PARTS LIST
N Item Code No. Parts Name Specification Version Q R
Z876-1 ASS'Y
* There are two types of Z876-1 ASS'Ys in SF-5780 (I, IYU, J)--A type & B type.
NU7
NU8
N U62
N * U42, U62
N * U62
N U42, U62
N XT1
N XT2 2590 2690
N Q30 2259 2712 Transistor TRR-01-M6 Common
N D2~D17
NL3
R7
R15~16
R24 Chip resistor (100 kW) RES-01-100K Common
R30
R31 Chip resistor (10 kW) RES-01-10K Common
C1~2 Chip capacitor (33 pF) CAP-01-33 Common
C3~4
C7~14, C16~21, Chip capacitor (0.1 mF) CAP-01-01 Common
C31, C34
C15
C30
C32
C33
2114 5771 TTL-IC CMO-09-HC373 Common
2114 5770 TTL-IC CMO-09-HC273 Common
2012 5520
2012 5520
2012 5519
2012 5519
2590 2691 Oscillator RER-01-12 Common
2390 3005 Diode DIO-01-LS4148 Common
6419 6420 Coil COI-02-4720 Common
The following electronic parts will be not supplied from CASIO.
LSI
LSI
LSI
LSI
Crystal oscillator
Chip resistor (1.5 kW) RES-01-1.5K Common
Chip resistor (1 MW) RES-01-1M Common
Chip resistor (220 W) RES-01-220 Common
Chip capacitor (18 pF) CAP-01-18 Common
Electrolytic capacitor (10 mF) CAP-02-10-25 Common
Chip capacitor (8200 pF) CAP-01-8200 Common
Chip capacitor (10 pF) CAP-01-10 Common
Chip capacitor (1 mF) CAP-02-1-50 Common
CMO-02-128NC-01 E,EYU,F
CMO-02-128NC-01 I,IYU,J A-type
CMO-02-256SN-01 I,IYU,J B-type
CMO-02-256SN-01 M,MYU,N
QUA-02-26
Common
16
16
B
1
B
1
B
1
B
2
B
1
B
2
B
1
B
1
C
1
C
C
1
1
2
1
1
1
2
2
1
1
1
1
Z876-2 ASS'Y
N
N
N
N
N
N
N
N
N
N
U2
U3
Q2, Q10
D1
D20
L2
L4
1
2
3
R1
R8 Chip resistor (1 kW) RES-01-1K Common
Notes: N – New parts IYU :
R – A : Essential MYU :
2114 5768 IC CMO-14-80715 Common
3065 0708 IC CMO-10-R1501B Common
2259 2713 Transistor TRR-01-NPNL6 Common
2390 3005 Diode DIO-01-LS4148 Common
2390 3004 Schottky diode DIO-03-BAT43 Common
6419 6430 Coil COI-02-4630 Common
3122 3509 Inductor IND-01-120 Common
3502 2225 Mini jack JCK-01-1169 Common
6419 6460 Battery plate + BAC-01-988+ Common
6419 6470 Battery plate - BAC-01-988- Common
The following electronic parts will be not supplied from CASIO.
Chip resistor (100 kW) RES-01-100K Common
SF-5580 for U.S.A.
EYU :
SF-5580 B.O.S.S.
Q – Quantity used per unit J :
R – Rank I :
B : Stock recommended N :
C : Others M :
X : No stock recommended
F :
SF-5580 Others
E :
— 27 —
SF-5780 for U.S.A.
SF-5780 B.O.S.S.
SF-5780 Others
SF-5980 for U.S.A.
SF-5980 B.O.S.S.
SF-5980 Others
C
1
C
1
C
2
C
1
C
1
C
1
C
1
C
1
C
1
C
1
1
1
N Item Code No. Parts Name Specification Applicable Q R
R9
R17
R18, R60
R25
R28
C5
C6~7, C35
Chip resistor (10 kW) RES-01-10K Common
Chip resistor (1 MW) RES-01-1M Common
Chip resistor (100 W) RES-01-100 Common
Chip resistor (1.8 kW) RES-01-1.8K Common
Chip resistor (47 kW) RES-01-47K Common
Chip capacitor (0.1 mF) CAP-01-01 Common
Electrolytic capacitor (100 mF) CAP-02-100-10 Common
C24 Chip capacitor (4700 pF) CAP-01-4700 Common
C36
Tantalum capacitor (10 mF) CAP-04-10-6.3 Common
PCB ASSEMBLY
N
N
N
N
4
4
4
5
N6
N7
N8
N9
N10
N11
6419 6480 Z876-1 ass'y C341328*1 E,EYU,F
6419 6490 Z876-1 ass'y C341328*2 I,IYU,J
6419 6500 Z876-1 ass'y C341328*3 M,MYU,N
6419 7320 Z876-2 ass'y C341329*1 Common
5610 9420 Heat seal HES-03-ZX876A Common
5610 9430 Heat seal HES-03-ZX876B Common
5610 9440 Heat seal HES-01-161055 Common
3502 2224 Heat seal HES-01-064065 Common
3335 6535 LCD LCD-03-ZX876 Common
3312 0057 EL LAM-03-ZX876 Common
COMPONENTS
N
N
N
N13
N13
N13
N14
N15
N15
N15
N15
N15
N15
N16
N16
N16
N17
N18
N18
N18
N19
N20
N
12 6419 6180 Rubber key KEY-04-ZX876A-1 E,EYU,F
12 6419 6190 Rubber key KEY-04-ZX876A-2 I,IYU,J
12
6419 6200 Rubber key KEY-04-ZX876A-3 M,MY,N
6419 6210 Upper cabinet (display) HOU-04-ZX876-00 E,EYU,F
6419 6220 Upper cabinet (display) HOU-04-ZX876-01 I,IYU,J
6419 6230 Upper cabinet (display) HOU-04-ZX876-02 M,MYU,N
6419 6240 Pad CON-05-507327 Common
6419 6250 Lower cabinet (keyboard) HOU-02-ZX876-00 E
6419 6260 Lower cabinet (keyboard) HOU-02-ZX876-01 EYU,F
6419 6270 Lower cabinet (keyboard) HOU-02-ZX876-02 I
6419 6280 Lower cabinet (keyboard) HOU-02-ZX876-03 IYU,J
6419 6290 Lower cabinet (keyboard) HOU-02-ZX876-04 M
6419 6300 Lower cabinet (keyboard) HOU-02-ZX876-05 MYU,N
6419 6310 Upper cabinet (keyboard) HOU-01-ZX876-00 E,EYU,F
6419 6320 Upper cabinet (keyboard) HOU-01-ZX876-01 I,IYU,J
6419 6330 Upper cabinet (keyboard) HOU-01-ZX876-02 M,MYU,N
6419 6340 Hinge rubber HIN-01-ZX-876 Common
6419 6350 Rubber key KEY-04-ZX876B-1 E,EYU,F
6419 6360 Rubber key KEY-04-ZX876B-2 I,IYU,J
6419 6370 Rubber key KEY-04-ZX876B-3 M,MYU,N
6419 6400 Steel nut NUT-02-M1.7 Common
6419 6050 Battery spring BAC-01-ZX876- Common
21 6419 6060 Battery spring BAC-01-ZX876+/- Common
N 22 6419 6100 Battery spring BAC-01-ZX876+ Common
N 23 6419 6080 Rubber key KEY-03-U100 Common
N 24 6419 6120 Knob LOC-01-ZX876-00 E,EYU,F
SF-5580 for U.S.A.
EYU :
SF-5580 for U.S.A.
Notes: N – New parts IYU :
Q – Quantity used per unit J :
R – Rank I :
EYU :
SF-5580 B.O.S.S.
F :
SF-5580 B.O.S.S.
F :
SF-5580 Others
E :
SF-5580 Others
E :
R – A : Essential MYU :
B : Stock recommended N :
C : Others M :
SF-5780 for U.S.A.
SF-5780 B.O.S.S.
SF-5780 Others
SF-5980 for U.S.A.
SF-5980 B.O.S.S.
SF-5980 Others
X : No stock recommended
— 28 —
1
1
2
1
1
1
3
1
1
B
1
B
1
B
1
B
1
B
1
B
1
B
1
B
1
B
1
B
1
C
1
C
1
C
1
C
1
C
1
C
1
X
2
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
X
1
C
1
C
1
C
1
X
2
X
1
X
1
X
1
C
1
C
1
N Item Code No. Parts Name Specification Applicable Q R
N 24 6419 6130 Knob LOC-01-ZX876-01 I,IYU,J
N 24 6419 6140 Knob LOC-01-ZX876-02 M,MYU,N
N 25 3122 3508 Buzzer BUZ-02-27 Common
N 26 3851 2053 Display plate LEN-01-ZX876-00 E, EYU
N 26 3851 2054 Display plate LEN-01-ZX876-01 F
N 26 3851 2055 Display plate LEN-01-ZX876-02 I, IYU
N 26 3851 2056 Display plate LEN-01-ZX876-03 J
N 26 3851 2057 Display plate LEN-01-ZX876-04 M,MYU
N 26 3851 2058 Display plate LEN-01-ZX876-05 N
N 27 6419 5720 Lower cabinet (display) HOU-03-ZX876-00 E,EYU,F
N 27 6419 5730 Lower cabinet (display) HOU-03-ZX876-01 I,IYU,J
N 27 6419 5740 Lower cabinet (display) HOU-03-ZX876-02 M,MYU,N
N 28 6419 5750 Plate INL-01-ZX876-00 E, EYU
N 28 6419 5760 Plate INL-01-ZX876-01 F
N 28 6419 5770 Plate INL-01-ZX876-02 I, IYU
N 28 6419 5780 Plate INL-01-ZX876-03 J
N 28 6419 5790 Plate INL-01-ZX876-04 M,MYU
N 28 6419 5800 Plate INL-01-ZX876-05 N
N 29 6419 5820 Screw SCR-01-1740PMTB Common
N 30 6419 5830 Screw SCR-01-1735PBBK Common
N 31 6419 5850 Jack cover JCK-02-ZX876 Common
N 32 6419 5890 Battery cover BAD-02-ZX876-00 E,EYU,F
N 32 6419 5900 Battery cover BAD-02-ZX876-01 I,IYU,J
N 32 6419 5910 Battery cover BAD-02-ZX876-02 M,MYU,N
N 33 6419 5920 Battery cover BAD-01-ZX876-00 E,EYU,F
N 33 6419 5930 Battery cover BAD-01-ZX876-01 I,IYU,J
N 33 6419 5940 Battery cover BAD-01-ZX876-02 M,MYU,N
C
1
C
1
X
1
B
1
B
1
B
1
B
1
B
1
B
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
C
1
Parts prices will be informed separately by Parts Price List.
SF-5580 for U.S.A.
EYU :
SF-5580 for U.S.A.
Notes: N – New parts IYU :
Q – Quantity used per unit J :
R – Rank I :
R – A : Essential MYU :
B : Stock recommended N :
C : Others M :
X : No stock recommended
EYU :
SF-5580 B.O.S.S.
F :
SF-5580 B.O.S.S.
F :
SF-5580 Others
E :
SF-5580 Others
E :
— 29 —
SF-5780 for U.S.A.
SF-5780 B.O.S.S.
SF-5780 Others
SF-5980 for U.S.A.
SF-5980 B.O.S.S.
SF-5980 Others
16
24
17
18
31
1
22
21
20
5
23
3
2
25
15
19
32
29
30
33
26
13
12
8
9
14
10
11
7
6
4
27
28
19
10. EXPLODED VIEW
— 30 —
MA1100661A
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