12.PARTS LIST ................................................................................................................ 25
1. SCHEMATIC DIAGRAM
— 1 —
NOTES:
1. DP1, DP2, and DP3 are the checking
points for the power supply.
2. CP50, CP51, CP52, and DP1 are the
terminals for the data transfer.
3. The other terminals marked with
may be used to function checking.
4. R50 and R51 are not used.
2. SPECIFICATIONS
Telephone Directory Mode
Storage and recall of telephone directory data (name, telephone number, portrait). Includes secret
memory area and auto sort function.
Schedule Mode
Storage and recall of appointments (month/date/hour/minute, description). Includes secret memory
area and auto sort function.
Data Memo Mode
Storage and recall of memos (memo name, memo). Includes secret memory area and auto sort
function.
Timekeeping Mode
Average of accuracy ±3 seconds per day under normal temperatures: year/month/date, hour/minute/
second, AM/PM, day of the week, full automatic calendar, 12/24 hour timekeeping format
Alarm Mode
Daily Alarm (20-second electronic buzzer); Hourly Time Signal (beeps every hour on the hour)
Fortune Telling Mode
Fortune telling on any date from January 1, 1901 to December 31, 2099.
Match Maker Mode
Compatibility of any two people whose birthdays are from January 1, 1901 to December 31, 2099.
General
Display:Liquid crystal display
Memory Capacity:4,096 bytes
Power Supply:Main batteries –One lithium battery (CR2032)
Back-up battery –One lithium battery (CR2032)
Power Consumption: 0.03 W
Battery Life*:Main batteries –
• approximately 400 hours continuous operation
• approximately 1 year (1 hour use per day)
Back-up battery – approximately 5 years after the low main battery
warning appears on the display
*The batteries which have been installed in this unit when you purchase it
are for the factory test, so that it will not be possible to satisfy the above
specifications when these batteries are used.
Auto Power Off:Approximately 6 minutes after last key operation
Ambient Temperature
Range:0°C ~ 40°C (32°F ~ 104°F)
Dimensions:Open:9.3 (H) × 146 (W) × 162.5 (D) mm
3
(
/8" (H) × 5 3/4" (W) × 6 3/8" (D))
Closed:14.9 (H) × 146 (W) × 84.5 (D) mm
5
(
/8" (H) × 5 3/4 " (W) × 3 3/8" (D))
Weight:138.2 g (4.9 oz) including batteries
Current consumption
Check pointTYP [µA]Max [µA]
OFFCP1 - CP3—8.5
ON (Menu)CP1 - CP3185220
ON (Buzzer)CP1 - CP3—5000
How memory capacity is calculated
There is no limit on the amount of memory you can use in each mode, but the limit on the total
amount of data stored is 4,096 bytes. The following shows how many bytes the data in each mode
takes up. One character takes up one byte.
Very important stuff! Here's where we tell you how not to lose important data stored in memory. Also,
be sure to perform the all-reset operation before using the JD-4000/C-210 for the first time. The allreset operation is described in section 4.
Please be sure you understand the following before using the JD-4000/C-210.
Make back-up copies of important data!
The electronic memory in the JD-4000/C-210 store and recall information quickly and easily. But that
information is retained only as long as power is supplied by the batteries. Should the batteries go
dead, or should you remove both batteries at the same time, data stored in memory can be lost
entirely. Data can also be corrupted or lost due to a strong electrostatic charge, strong impact, or
extremes in temperature and humidity. All of this means that you should always keep written back-up
copies of important data.
General Precautions
Warning!
•Never expose the unit or batteries to direct heat or flame.
•Avoid use or storage in very low temperatures. This may cause display response to slow down or
fail entirely. Very low temperatures can also shorten battery life.
•Avoid use or storage in very high temperatures. Even prolonged exposure to direct sunlight can
damage the unit. Leaving it on the dashboard of a closed car, or on a heater, is even worse.
•Avoid using or storing the unit where there is high humidity or a lot of dust. Never allow liquids to
come into contact with the unit.
•Avoid dropping the unit or otherwise subjecting it to strong impact.
•Never bend or twist the unit. Carrying it in your back pocket, for instance, can subject the JD4000/C-210 to abnormal bending and twisting.
•Never try to take the unit apart.
•Do not press the unit's keys with a pen, pencil, or other sharp object.
•To clean the JD-4000/C-210, wipe it with a soft cloth. When necessary, you may wipe the exterior
with a soft cloth that has been dipped in a weak solution of a mild, neutral detergent and water.
•Never use strong liquid cleaners such as lacquer thinner or benzine to clean the unit.
•In no event will CASIO or its suppliers be liable to you or any other person for any damages,
including any incidental or consequential expenses, lost profits, lost savings, or any other damages arising out of the use of this product.
MENU Key
SYMBOL Key
Display
CODE Key
Clear Key
AC/ON Key
SHIFT Key
EDIT Key
SERCH and CONTRAST Key
Cursor Keys
OFF Key
EXE Key
SPACE/Return Key
— 6 —
Displaying the Main Menues
MENU 3
777
There is a total of three icon menues which are named by MENU 1, MENU 2, and MENU 3. An icon
menu will appear on the display once the switch is turned on, and the other icon menues can be
selected by using the MENU key.
1. Press MENU to display the one of the menues, MENU 1, MENU 2, and MENU 3, that contains
the mode you want.
2. Use , , , and to move the highlight to the icon of the mode you want.
3. While the icon you want is highlighted, press EXE to enter its mode.
Setting the System Language
The JD-4000/C-210 can display messages in any one of five languages: English, Spanish, Italian,
German, and French.
To set the system language
1. Press MENU to display any menu (MENU 1, MENU 2, or MENU 3).
2. Press EDIT and the " Language" appears on the screen.
3. Use or to select the language which you want to use.
*If you want to cancel this operation, press AC/ON.
4. Under the language you want being on the display, press EXE.
*After a few moments, the MENU from which you started out will reappear on the display.
To Adjust the Display Contrast
1. Press MENU to display a menu (MENU 1, MENU 2, or MENU 3).
2. Press to increase contrast (making the figures darker) or to decrease contrast (making the
figures lighter).
— 7 —
To Switch the Key Input Tone On or Off
1. Press MENU to display MENU 2.
2. Use , , , and to highlight , and then press EXE to enter the Alarm Mode.
3. While the currect alarm time setting is shown, press e (C) to display the "Key Tone".
4. Use or to select the "ON" (key input tone on) or the "OFF" (key input tone off).
5. Press EXE to return to the current alarm time setting screen.
6. Press MENU to return to MENU 2.
Auto Power Off Function
This function automatically switches off the power if you do not touch any key of the unit for about six
minutes.
Pressing AC/ON can restore the power.
Features and Functions
Telephone Directory Mode
Store the names and phone numbers of your friends, along with their portraits.
Schedule Mode
Keep track of your promises and appointments.
777
Data Memo Mode
Store short memos and reminders.
Secret Memory Area
Keep your data private.
Timekeeping Mode
A built-in clock shows the current time.
Alarm Mode
An alarm sounds each day at the time you preset.
Fortune Telling Mode
Find out the fortunes of all your friends.
Match Maker Mode
Check how well two people are matched.
Triple Play Mode
An exciting game you can play alone or with a friend.
Calculator Mode
A 10-digit calculator.
— 8 —
4. RESET OPERATIONS
Use the following operation to reset the unit and clear its memory.
Important!
•Be sure to reset the unit before using it for the first time.
•Do not use a very sharp pencil to press the RESET button. Doing so can damage the unit.
To reset the unit
1. Press AC/ON to switch power on.
2. Loosen the screw that holds the back-up battery compartment cover in place, and remove the
cover.
RESET button
3. Use a thin, pointed object (like a paper clip) to press the RESET button inside the battery compartment cover. When you do, the "Reset?" screen should appear.
4. Press to select "Yes, " and then press EXE.
•MENU 1 appears on the display after all data is deleted.
5. Use the Timekeeping Mode to set the time after performing the RESET operation.
6. Replace the battery compartment cover.
•To abort the RESET operation, press to select "No" and then press EXE. This causes the
"Check time!" message to appear. Press EXE to display the time. If the time setting is wrong, use
the Timekeeping Mode to reset it.
•The following table shows what happens to all settings when you reset the unit.
Memory DataAll Cleared
DataAll cleared
Current DateJanuary 1, 1990
Current TimeMidnight (12:00 AM)
Time Format12-hour
AlarmsAll off
Alarm TimeMidnight (12:00 AM)
PasswordCleared
Secret Memory AreaCleared
System LanguageEnglish
— 9 —
When the unit does not work properly ...
The unit may stop working properly after it is subjected to strong electrostatic charge or strong
impact. If this happens, first check to make sure that the main battery and back-up battery are correctly installed, and then perform the following operation.
1. Loosen the screw that holds the battery compartment cover in place, and remove the cover.
2. Use a thin, pointed object (like a paper clip) to press the RESET button inside the battery compartment cover. When you do, the "Reset?" screen should appear.
3. Make sure that the pointer is located at "No," and then press EXE. The "Check time!" message
should appear on the display.
4. Press EXE again, and then use the Timekeeping Mode to set the current time.
5. Replace the battery compartment cover.
— 10 —
5. BATTERY REPLACEMENT
Low Battery Warning
The message, "Low battery" appears whenever battery power drops below a certain level (about
2.70 V). Replace the main battery immediately after this message appears.
Whenever the low battery warning message appears, the OFF key will be the only function that
works. If you don't turn the unit off yourself, power will switch off automatically about 30 seconds after
the low battery warning appears.
Replacing Battery
•Main Battery
One CR2032 lithium battery is used for the main power supply. The unit will not operate at all if
main battery is not installed.
•Back-up Battery
One CR2032 lithium battery supplies power to the memory and protects its contents.
Memory contents are lost when both the main battery and the back-up battery are removed. Be sure
always to leave one of the batteries in place to protect memory contents. If, however, you remove the
main battery for any time, memory retention will depend entirely on the condition of the back-up
battery. Over a long period of time with just the back-up battery in place, memory contents are likely
to be damaged. If memory seems corrupted, clear it using the RESET procedure described in section
4.
Important!
Incorrect use of batteries can cause them to burst or leak, possibly damaging the interior of the unit.
Note the following precautions:
•Be sure that the positive (+) and negative (-) poles of the batteries are facing in the proper direction.
•Never leave dead batteries in the battery compartment.
•Remove the batteries if you do not plan to use the unit for a long period of time.
•To avoid damage to the unit from leaky batteries, replace the batteries at least once every five
years, no matter how much you use the unit during that time.
Warning!
•Never try to recharge the batteries that come with the unit.
•Do not expose batteries to direct heat, short-circuit them, or try to take them apart.
•Keep batteries out of the reach of small children. If swallowed, consult a physician immediately.
— 11 —
To replace the main battery
1. Switch power off.
2. Loosen the screw that holds the battery compartment cover in place, and then remove the
cover(Fig. 1).
*Do not turn switch on until you complete step 7 of this procedure.
3. Slide the tab in the direction indicated by the arrow (Fig. 2).
4. Insert a thin, pointed non-metallic object into the opening (A) so that the old battery can be removed (Fig. 3).
*Do not slide the tab while battery is not installed!
5. Wipe a new battery with a soft, dry cloth, then install the battery into the unit. Make sure that its
positive (+) side is facing up (so you can see this side).
6. Slide the tab back to the origin.
7. Replace the battery compartment cover and fix it with its screw.
Tab
Battery compartment
cover
Figure 1Figure 2Figure 3
To replace the back-up battery
1. Switch power off.
2. Loosen the screw that holds the battery compartment
cover in place, and then remove the cover (Fig. 1).
*Do not turn switch on until you complete step 7 of
this procedure.
3. Remove the back-up battery precaution sticker, and
then loosen the screw that holds the back-up battery
cover in place.
4. Remove the back-up battery cover and then remove
the old battery (Fig. 4).
5. Wipe a new battery with a soft, dry cloth, then install
the battery into the unit. Make sure that its positive
(+) side is facing up (so you can see this side).
6. Replace the back-up battery cover and fix it with its
screw. Do not forget to replace the battery precaution
sticker.
7. Replace the battery compartment cover and fix it with
its screw.
Main batteryOpening (A)
Back-up battery
Figure 4
Back-up battery cover
— 12 —
6. ERROR MESSAGE
Message
Check Time!
Memory Full!
No Record!
Not Found!
Mismatch!
Low Battery
Meaning
Always appears when RESET
operation is aborted.
Memory is full.
No data stored in memory.
No data in memory matches data
specified for search.
Registered password does not
match input.
Battery power is low.
Action
Confirm that the current time
setting is correct.
Reduce number of characters
in data being stored, or delete
unneeded data from memory.
Store data before attempting
search operation.
Change specification.
Use correct password.
Replace the main battery.
— 13 —
7. LSI PIN FUNCTION
1. CPU (HC3009-01-F1)
Pin No.SignalIn/OutFunction
1DUMMY_Not used
2 ~ 9IO0 ~ 7In/OutData bus
10CS6B0OutChip enable signal for ROM
11CS7B0OutChip enable signal for RAM
12DUMMY_Not used
13WEB0OutWrite enable signal for RAM
14OEB0OutOutput enable signal for RAM and ROM
15 ~ 31AO0 ~ 16OutAddress bus
32AO17Out Not used
33IT0InReception data input
34IT2InInterrupt signal input
35, 37DUMMY, TRANS_Not used
36BUFONOutPower supply control for ROM
38 ~ 44KI1 ~ 7InKey input signal
45K18InNot used
46 ~ 54KO1, KO5 ~ 12OutKey scan signal
55DUMMY_Not used
56VREG3OutPower supply for RAM/3(V)
57VLCDOut5.9[V]
Check key. Push the
key sequentially that is
being appeared in the
display.
Check key
End
— 16 —
9. TO SAVE THE DATA TO ANOTHER MACHINE
It is commonly necessary to save all data stored in the customer's unit before repairing it.
For this purpose, you can transfer the data of the JD-4000 or C-210 unit to another unit using the
following procedure.
(1)To reset the receiving unit
Please reset the unit used to receive the data from the customer's unit according to the method
mentioned in section 4.
(2)To connect transmission unit with receiving unit
Please remove the covers of battery compartments from both the transmission unit and the
receiving unit, and connect one with another as shown in the figures below as:
CP52Main battery
CP50CP51
DP1
UNIT 2
UNIT 2
DP1
DTC114YK
GND
CP50
Tx
CP51
51K
1K
CP52
MA704
MA704
Rx
UNIT 1
DP1
CP50
CP51
CP52
DTC 114YK
51K1K
MA704
MA704
GND
Tx
Rx
— 17 —
3 pins cable
(3)To do data transfer
Please switch both the units on, and make them enter the MENU1 mode. Thus you may start to
transfer the all data of customer’s unit to the receiving unit following the procedure shown below.
MENU 1MENU 1
AC
TEST
Over 2 seconds
CautiTo Escape
on !Press AC KEY
TEST
EXEEXE
0. TESTo Escape
1. SVCPress AC KEY
1
0. TRN
1. RCV
1
TEST
Over 2 seconds
CautiTo Escape
on !Press AC KEY
TEST
0. TESTo Escape
1. SVCPress AC KEY
1
0. TRN
1. RCV
0
AC
Receiving
Receiving
failed
Sending
Receiving succeeded
Sending succeeded
MENU 1
MENU 1
Rcv Error !
Send Error !
Notes: The TEST means the short-circuit operation as shown in figure on the next page:
— 18 —
Sending
failed
Shortcircuit the two shorting pads with
a shorting pin for over 2 seconds.
Shorting pin
Shorting pads
Main battery
— 19 —
10. TROUBLESHOOTING
1. Intermittent display
START
Is the Heat seal defective ?
Is the battery contact weak ?
Are there short circuit around the pins
of the LSI (HC3009-01-F1) ?
Is the soldering weak ?
Replace the PCB ass'y
2. Erratic display
START
Is the Heat seal defective ?
Is the LCD defective ?
Are the voltage V0 ~ V4 OK ?
Are there short circuit around the pins of the
LSI (HC3009-01-F1) or between the 2 pins of
the crystal oscillator (·1) ?
Are there short circuit around
the pins of the RAM and ROM ?
Replace the PCB ass'y
Y
N
N
N
N
N
N
Y
N
N
Y
Y
Y
Y
N
Y
Replace
Clean and adjust pressure of contact
Y
Resolder
Resolder
Replace
Replace
Check or replace the chip
capacitors C4 ~ C8
Y
Resolder
Resolder
— 20 —
3. No display
START
Is the battery contact weak?
N
Is the battery switch contact weak?
N
Is the AC key contact weak?
N
Are there short circuit around
the pins of the LSI?
N
Is the voltage VCC 3[V] ?
Y
Does the ceramic oscillator oscillate ?
Y
Are the voltage V0 ~ V4 OK ?
N
Y
Y
Y
N
Are the chip capacitors C22, C23 defective ?
Y
Is the heat seal defective ?
Is the LCD defective ?
Clean and adjust pressure of contact
Y
Clean and adjust pressure of contact
Clean or replace the rubber key
Resolder
Check or replace the electrolytic
capacitor C1
N
N
Replace the ceramic oscillator
Y
N
Y
N
Replace
Replace
Y
Replace
Are the voltage VD1 ~ VD4 OK ?
Y
Are the voltage VT1 ~ VT4 OK ?
Y
Are the voltage VREG 2 and
VREG 4 OK ?
Y
Is the voltage VREG 3 OK ?
Y
Is the voltage SW OK ?
Y
Replace the PCB ass'y
N
N
N
N
N
Check or replace the chip
capacitor C11, C12
Check or replace the chip
capacitor C13, C14
Check or replace the chip
capacitor C9 or C16
Check or replace the chip
capacitor C18 or C25
Check or replace the chip
capacitor C10
— 21 —
11. EXPLODED VIEW
14
15
13
11
— 23 —
12
9
10
8
2
4
DISASSEMBLY
1. Loose the screw Q, then remove the battery cover P.
2. Remove the two lithium batteries.
3. Loose the four screws S, then remove the lower cabinet R.
4. Loose the four screws H, then remove the PCB ass'y 8.