Casio JD8000 Service Manual

(without price)

JD-8000(ZX-809AE)

MAY. 1995

INDEX

R

CONTENTS

1.	SPECIFICATIONS .........................................................................................................	1
2.	GENERAL GUIDE .........................................................................................................	5
3.	RESET OPERATIONS ................................................................................................	10
4.	ERROR MESSAGE .....................................................................................................	11
5.	BATTERY REPLACEMENT ........................................................................................	12
6.	LSI PIN FUNCTION .....................................................................................................	14
7.	OPERATION CHECK ..................................................................................................	17
8.	TO SAVE THE DATA TO OTHER MACHINE .............................................................	19
9.	TROUBLESHOOTING.................................................................................................	22
10.	EXPLODED VIEW .......................................................................................................	24
11.	PARTS LIST ................................................................................................................	25
12.	SCHEMATIC DIAGRAM..............................................................................................	27

1. SPECIFICATIONS

Telephone Directory Mode

Storage and recall of telephone directory data (name, telephone number, address, etc.). Each item can contain up to 380 characters with a Fun Face. Includes secret memory area and auto sort function.

Schedule Mode

Storage and recall of appointments for any date in the range of January 1901 through December 2099. Each item can contain up to 372 characters with an icon. Includes secret memory area and auto sort function.

Calendar Mode

Full-month calendars in the range of January 1901 through December 2099. Includes highlighting of important dates and holidays.

Data Memo "Diary" Mode

Storage and recall of memos. Each item can contain up to 381 characters. Includes secret memory area and auto sort function.

Timekeeping Mode

Average of accuracy ±3 seconds per day under normal temperatures: Home Time (year/month/date, AM/PM, day of the week, city name, daylight saving/standard time): World Time: full automatic calendar: 12/24 hour timekeeping format

Alarm Mode

Daily Alarm (20-second electronic buzzer): Schedule Alarm (20-second electronic buzzer): Hourly Time Signal (beeps every hour on the hour)

Conversion Mode

Six built-in conversion pairs (4-character unit name + 10 digit rate; user-definable)

Player Profile Mode

Storage and recall of player profile data (name, team, position, country and birthday, memo, portrait). Each item can contain up to 378 characters with a Fun Face. Includes secret memory area and auto sort function.

Shoot and Jam Game Mode

1 player and 2 players (using Magic Beam)

Calculator Mode

10-digit arithmetic calculations; constant calculations; memory calculations; 20-digit approximations; percentage calculations; square roots; sign changes; function command signs

Other functions

Contrast adjustment

— 1 —

General

Display:	Liquid crystal display
Memory Capacity:	4,096 bytes
Power Supply:	Main batteries –		Two AAA-size batteries (LR03 (AM-4) or R03 (UM-4))
	Back-up battery – One lithium battery (CR2032)
Power Consumption:	0.2W
Battery Life:*	Main batteries –
	LR03 (AM-4)
	• approximately 250 hours continuous operation
	• approximately 6 months (1 hour use per day)
	R03 (UM-4)
	• approximately 200 hours continuous operation
	• approximately 5 months (1 hour use per day)
	Back-up battery – approximately 1.5 years after the low main battery warning
			appears on the display (aaproximately 5 years if main batter-
			ies are replaced immediately whenever battery warning
			appears)
	*The batteries that have been installed in this unit when user purchased it had been
	used in the factory test, so it will be impossible to fully satisfy this specifications
	when these batteries are used.
Auto Power Off:	Approximately 6 minutes after last key operation
Ambient Temperature	0°C ~ 40°C (32°F ~ 104°F)
Range:
Dimensions:	Open:	13.5 (H) × 145 (W) × 180 (D) mm
		(1/2" (H) × 5 3/4" (W) × 7 1/8" (D))
	Closed:	15.75 (H) × 145 (W) × 96.5 (D) mm
		(5/8" (H) × 5 3/4 " (W) × 3 3/4" (D))
Weight:	142.2 g (5 oz) including batteries

— 2 —

Current consumption

	Check point	TYP [μA]	Max [μA]
OFF	CP1 - CP3	—	18
ON (Menu)	CP1 - CP3	165	300
ON (Buzzer)	CP1 - CP3	—	5000
ON (Infrared)	CP1 - CP3	—	70000

Memory Capacity Screen

Use the following procedures to check the status of the memory. One procedure displays the amount of memory used and the how much memory is remaining. The other shows you how many data items you have stored in each mode.

To display the memory capacity:

1.While the main menu is displayed, or any time you are in the Telephone Directory, Player Profile, Schedule, Data Memo "Diary", or Calendar mode, press FUNCTION.

2.Use and to select "Memory Capacity" and then press EXE.

Remaining memory (Unit: bytes)

Memory used (Unit: bytes)

M e m o r y			C a p a c i t y
F	r e	e	3 9	2	9				Memory used
						4%
U	s e	d	1	6	7

•The memory values shown above are the total for both the Open Memory Area and the Secret Memory Area.

•Press AC/ON to clear the memory capacity screen.

To display the number of items in each mode:

1.While the main menu is displayed, press FUNCTION.

2.Use and to select "Number of items" and then press EXE.

Open Memory Area

	T e l e				p h		o	n e	:	1 5
	P	r	o	f	i	l	e		:	8
	S	c	h	e	d	u	l	e	:	3
	D	a	t	a		M e m o			:	7
Secret Memory Area
	T e l e				p h		o	n e	:	3
	P	r	o	f	i	l	e		:	4
	S	c	h	e	d	u	l	e	:	2
	D a t a M e m o								:	1 1

•If you perform the above procedure while in the Open Memory Area, the number of items stored in the Open Memory Area only are displayed. To see the number of items in the Secret Memory Area, you must perform the above operation while accessing the Secret Memory Area.

How memory capacity is calculated

There is no limit on the amount of memory you can use in each mode, but the total amount of data that can be stored is 4,096 bytes. The following shows how many bytes the data in each mode takes up. One character (each newline operation counts as a character also) takes up one byte.

— 3 —

Mode	Bytes per Data Item
Telephone Directory	(name) + (telephone number) + (address. etc.)
	+ 15
Player Profile	(name) + (team name) + (position) +
	(birthday/country) + (memo) + 17
Schedule	(description) + 12
Calendar	6 bytes per calendar that contains highlighted
	dates
Data Memo "Diary"	(memo name) + (memo contents) + 3

Examples:

Telephone Directory data only

When all items use 10 characters for the name, 12 characters for the phone number, and 16 characters of the address, you can store approximately 70 items.

Player Profile data only

When all items use 50 characters, you can store approximately 60 items.

Schedule data only

When all items use 20 characters, you can store approximately 120 items.

Data Memo "Diary" data only

When all items use 10 characters for the memo name and 10 characters for the memo content, you can store approximately 170 items.

Sort Sequence

The following table shows the sequence used for sorting data in the Telephone Directory and the Data Memo "Diary" Mode.

1	§	30	8	59	V	88	t	117	Ì	146	"	175	n
											o
2	→	31	9	60	W	89	u	118	Ò	147	Â	176	r
3	←	32	:	61	X	90	v	119	Ù	148	Ê	177	s
4	÷	33	;	62	Y	91	w	120	Ç	149	Î	178	t'
5	×	34	<	63	Z	92	x	121	L	150	Ô	179	A
6	Space	35	>	64	„	93	y	122	.	151	Û	180	E
									Z
													`
7	!	36	?	65	¥	94	z	123	à	152	Å	181	´
													C
8	”	37	@	66	“	95	<	124	è	153	.	182	´
											U		N
9	#	38	A	67	¡	96	£	125	ì	154	"	183	´
											U		S
10	$	39	B	68	¿	97	>	126	ò	155	â	184	´
													Y
11	%	40	C	69	a	98	~	127	ù	156	ê	185	´
													Z
12	&	41	D	70	b	99	Á	128	ç	157	î	186	Z
13	’	42	E	71	c	100	É	129	l	158	ô	187	a
14	(	43	F	72	d	101	Í	130	.	159	û	188	`
									z				e
15	)	44	G	73	e	102	Ó	131	Ä	160	å	189	`
													c´
16		45	H	74	f	103	Ú	132	Ë	161	.	190	n´
											u
17	+	46	I	75	g	104	Ã	133	Ï	162	u"	191	s´
18	,	47	J	76	h	105	Õ	134	Ö	163	A	192	y´
19	–	48	K	77	i	106	Ñ	135	Ü	164	E	193	z´
20	•	49	L	78	j	107	á	136	Æ	165	C	194	z
21	/	50	M	79	k	108	é	137	Œ	166	D	195	Ø
22	0	51	N	80	l	109	í	138	"	167	N	196	ø
									O
23	1	52	O	81	m	110	ó	139	ä	168	R	197	ß
24	2	53	P	82	n	111	ú	140	ë	169	S
25	3	54	Q	83	o	112	ã	141	ï	170	T
26	4	55	R	84	p	113	õ	142	ö	171	a
27	5	56	S	85	q	114	ñ	143	ü	172	e
28	6	57	T	86	r	115	À	144	æ	173	c
29	7	58	U	87	s	116	È	145	œ	174	d'

— 4 —

2. GENERAL GUIDE

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 unit for the first time. The all-reset operation is described on section 4.

Please be sure you understand the following before using the unit.

Make back-up copies of important data!

The electronic memory in the unit 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 unit 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 unit, 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

Shoot and Jam Game Mode Key SERCH Key

Timekeeping Mode Key*

Cursor Keys

FUNCTION Key

Display
CODE Key
Clear Key
AC/ON Key
SHIFT Key	Connector Terminal
	OFF Key
	EXE Key
	SPACE/Return Key

*In this manual, all references to the HOME TIME/WORLD TIME key are indicated by TIME.

—5 —

Displaying the Main Menu

The main menu appears on the display when you switch the power on. Whenever you are viewing any other screen, you can always press MENU to return to the main menu.

Main Menu

1 2 3 4 5

	6				7			8		9			0
Menu Icons
1	Telephone Directory Mode									6			Calculator Mode
2	Player Profile Mode									7			Conversion Mode
3	Schedule Mode									8			Alarm Mode
4	Calendar Mode									9			Data Memo "Diary" Mode
5	Secret Memory Area									0			Magic Beam Mode

Changing Modes

To change modes:

1.Display the main menu.

2.The icon of the current mode is highlighted on the display . Use , , , and to select another menu icon.

3.When you have highlighted the mode you wish to select, press EXE.

To enter the Timekeeping Mode, press TIME key. To enter the Football Game Mode, press SHOOT AND JAM. You cannot select these modes from the main menu.

— 6 —

Using the FUNCTION Key

To view the function menu, press FUNCTION.

To select a function:

1.Use or to highlight the function you want to choose.

2.Press EXE.

If another function menu appears repeat steps 1 and 2.

To backstep to a previous display, press FUNCTION.

To exit the function menu, press AC/ON.

Setting the System Language

The unit can produce display messages in any one of ten language: English, Spanish, Italian, German, French, Danish, Swedish, Dutch, Finnish, and Portuguese.

To set the system to another language:

1.Display the main menu.

2.Press FUNCTION, then use or to highlight "Language." Press EXE.

3.Use or to highlight the language you want. Press EXE.

Also note the word "Language" is displayed in each language.

To Adjust the Display Contrast

1.Display the main menu.

2.To darken the figures on the display, press . To make them lighter, press .

To Switch the Key Input Tone On or Off

1.Display the main menu.

2.Use , , , and to highlight . Press EXE.

3.Press FUNCTION. Then use to highlight "Sound," Press EXE.

4.Use to highlight "Key Tone." Use and to switch the key tone on and off. Press EXE.

Auto Power Off Function

This function automatically switches off the power if you do not touch any of the unit's keys for about six minutes. To restore power, press AC/ON.

If you do not touch any keys for six minutes while entering or editing data, setting the current time, or setting an alarm time, power cuts off without storing the data.

If you have set an alarm to go off, and the unit has been shut down by auto power off, the alarm will sound anyway at its appropriate time.

— 7 —