Casio PF-8000 User manual

OPERATIONMANUAL
MANUAL DE OPERACION
CASIO PF-8000
103A M @S")(pj) Printed in Japan

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Doar rustomiit,
Thank you vory mm h lot IHIM hosing the Casio PF-800U
This isa highly pui uMu Id <li<ni Hectronic calculator nni>nl>ln n* ilmni!"/"" M
inthetwo s<!|>iii!ii« i ni<t(i"i H".. n.unely, telephone nunil"'i'. iiml iniimniiiMilimi
Please read this insimcllun m.jnual carefully so that yim < iin lully unilri -.i.iiid
each ofthe calcul.itoi's liuu timis and handle it properly
*Special care should bo tiikon not to damage the unit l>y ln>inlini/ <>i drop-
ping. For example, do not curry it in your hip pocket
CONTENTS
Prior toUse
. 4
Use precautions 4
Power Supply and BatteryReplacement 5
AutoPower Off8
Contrast Adjustment 8
RAM Pack for Expansion(option) 9
Each Section'sNomenclature and Operation 11
Nomenclature 13
Finger WritingFunction 18
DataBankFunctions 22
Data storageformat 23
How to count the number of stored characters 23
TEL function 25
MEMO function 36
SECRET function 43
COMMAND function 46
Data input errors 51
2

CalculationFunction
Specifications
CALCULATION EXAMPLES
52
54
111
Prior toUse
This calculator has beenmanufacturedusing Casio's advancedelectronicstechnology
understrictqualitycontrolconditions.
• Use precautions
• Thiscalculator is composed of precisionelectroniccomponents.Never attempt to take
it apart.Avoid shock such as throwing or dropping. Donot subject itto suddentem-
perature changes. Donot leave or store itin hot, humid or dustyplaces. Atlow tempe-
ratures the display may have a slower response or fail to light up.It will return to
normal when the temperature becomes normal.
• Replace the batteries at least every 2 years even when the calculator isnot used. Do
not leave old batteries in place since the electrolyte may leak outand cause damage.
• Avoid using thinner, benzine or othervolatile, liquid to clean the calculator.Wipe it
with adry cloth ora cloth dipped ina neutraldetergent and wrungdry.
• When strongstatic electricity is applied to this calculator, the displaycontrast may
weaken or functions maynot workproperly. In such cases, remove and reinstall the
mainbatteriesthenresumenormaloperation.
CAUTION: USE FINGERONLY
Characters shouldonly be drawn onthe screen by finger.
Avoid using a pointed object asit could damage the screen or internal
circuit.

I Power Supply and
The calculator uses two CR2032 lithium batteries for calculation/dlnpliiy ll nhu uses
one CR1220 lithium battery for memorybackup. If display contrast Is low nvnn when
the contrastcontrol (p.8) adjusted tothe maximum, it indicatesthat thct hniim inn luive
becomeweak. Replace the batteries as soon as possible using the procedurti <lm<.iilmcl
below. Iftheold batteries arenot replaced,memory maybe lost. Even whun tint ml
culatorfunctionsnormally,replacebatteries every 2 years.
• How to replace the batteries:
1. Calculation/display batteries
(DTurn offthe powerswitch, remove thetwo screws onthe back ofthe unit and
take offthe back cover.
Please refer the figure shownbelow.
(2) Remove screw (§) and remove the battery-retainingplate.
(3) Take outthe both old batteries.
(4) Wipe the surfaces ofthetwonew batterieswell with adry cloth and insertthem with
their (+) sides (flat sides) on top.
(5) Hold down thenew batteries with the battery-retainingplate and replace screw ® .
(6) Hook the back cover claw tothe main body and replace thetwo screws.
"Be sure to rep/ace both batteries.

2. Memorybackupbattery
Turn offthe powerswitch and follow the same procedure asin trm (MM nt main hnltRry
replacement,beginning by removing screw (g). Replacethis auxiliary Imtlmy eivnty 2
years irrespective Of main battery replacement.
Note:
Ifthe mainbatteries for calculation/display andthe auxiliarybattery for memory beck
up are removed atthe same time, the memorycontents will be lost. Be sure to keep
either in place.
* Never throw theold batteries into a fire. This is very dangerous because they are
likely to explode.
* Neverconfuse the(+)and (-) sides ofthe batteries.
Store the batteries out of reach of infants. If an infant swallows a battery, consult a
physician at once.
This isan automaticpowersaving function for preventingwastefulpowerconsumption
that will resultshould you forget to turn offthe powerswitch. The powersupply is
automatically cutoff about 6 minutesafter completion of operation.
In this case, power canbe resumed by pressing the c*jjokey or turning the powerswitch
offand then on again.
* Evenwhen the power is off, independent memory and datamemorycontents are
retained.However,modedesignations ( ua , H , Hmo*, etc.) are canceledexcept
that ofthe finger input mode ( D ).
Adjustment of displaycontrast canbe performedusing the adjustment control located
on the right side ofthe unit. Turn inthe direction ofthe arrow to increasecontrast.
Turn inthe opposite direction to reducecontrast.This is used to compensatecontrast of
the display in accordance with batterycapacity orto adjust to compensate forthe
viewingangle.

The RAM area of this calculator's data memory is 929 charactun (•|I|IMIM|MIM|H|V 1 kilo-
byte), butthe addition ofthe optional RAM Pack (OR-20) Incrnnwi* Urn ninn to 2977
characters (approximately 3 kilobytes).
• How to install theRAM pack (OR-20)
<Preparation>
IftheRAM pack is- handledcarelessly, its internal circuit maybo diMtrnyiNl by Mntlr
electricity. Therefore,beforehandling the pack,touch a doorknob or nihm motiillic
object to discharge the electrostatic charge contained in yourbody.
<Procedure>
1) Turn offthe powersupply. (Power switch -» OFF)
2) Remove thetwo screws onthe back and take offthe back cover. (See page 5)
3) Move the clasp oftheRAM pack downward.Insert the pack inthe socket ofthe
mainbody and slide itin while holding the clasp.
* Never touch the connector onPCBpadoftheRAM pack.
PCB pad Socket
Slide to secure
the pack Clasp
4) Screw onthe backcover.
5) Press the "AllReset" button using pointed objectafter turning onthe powerswitch.
•If this button isnot pressed,memorycontents maybe changed ora meaningless
display may appear.
6) Confirm the displayshows "L 2977:11 95"by pressing "cf H using the CAPACITY
command (see page 46).
*If dust,fingerprints,etc. are allowed toget onto the connector orPCBpadofthe
pack, poorcontact may result. Therefore,thesemust never be touched.
* Afterremoval ofthe pack, be sure toputitinits case and store itina place which
is freefromdust.
70

ismok
Display window
Power switch
Special operation keys
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PF-8000 J
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CASIO SUP.PK-~.~~~~™ DATABANK
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[OFF MEMO TEL *° OATAIIM/LJLJ
.« secner rS^-^«"«"-SP COMMAND
FINGER/TOUCH 1 Ac C C e"c
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int key
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' Root key
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Contrast control
Memory keys
Arithmetic
operationkeys
Numerical
f* keys/decimal key
no»uri 311
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p- All Reset button j
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i

• Nomenclature
• RESET All reset button (Onthe backpanel)
•For clearing all memory contents.
• Use thisimmediatelyafterpurchase or when you want to claar .ill data.
•Calculation keys (Keys onthe Input Screen- used inthe touch modi.)
EO ~ (D , Q Numericalkeys/decimal key
• These are pressed to input numerical values into the calculator.
Press (Zl to indicate a decimal point.
• Thesekeys are also used when a phonenumber is input. (Puu<> 27)
• The O keyis displayed "0"to avoidconfusion with the lottot "O".
Q f B , a , B , B Arithmeticoperation keys/equal key
• Press the necessary keys for arithmeticoperation.
• The B key obtains an answer.
• Whenthese are pressedafterpressing the ^key, each will be displayed as a symbol.
(Page 27)
(%) Percent key
• Press this key to percentage calculations.
• When this keyis pressedafterpressing the
, ("») , ® Memory keys
> key, it will be displayed asa symbol.
• When a numericalvalue istobe input into the memory asa positive value,press the
(M+| key.When itistobe input asa negativevalue,press theB key.When a numerical
value stored inthe memory istobe displayed, press the |«5) key.When the (Sc| keyis
pressed, the numericalvaluestored inthe memory is deleted.
• When this keyis pressed after pressing the ^key, it will be displayed as a character.
B Clear key
• When an erroneousnumericalvalue is input, itcanbe cleared by pressing this key
immediatelyafter input; also releases overflow or errorcheck.
BD All clear key
• Press this key whenbeginning a calculation or whenstarting completely overagain;
also releases overflow or errorcheck.
14

•Special operation keys (Keys below the display window)
T=3 Finger/Touchmode key
• Fingermode ( a mark appears) —48 types of characters (alphabot, iiiiiniiniK ;md
symbols) canbe input by finger writing using the Input Screen.
There are manykinds of writing forms inthe world.
This unit recognizes only standardalpha-numericcharacters written in tho (onns
shown on page 21.
• Touch mode ( a markdisappears) — Numerical and arithemetic operation keys on
the Input Screen canbe input.
(Symbolizedhere asED).
"a" Data input/output mode key
• Press this keyfor data storage, no will be displayed and data canbe input . This key
is also pressed with performing datacorrection or deletion. (Page 35,36)
•If this keyis pressed while rais displayed, na will disappear andthe output mode
will be designated.
(Symbolizedhere as S ).
e=i Displayclear key
• Press this keyto clear the display.
• This keyis also pressedwhen deleting data. (Page-36, 42)
• After this keyhas beenpressed, arithmetic operation key input will be displayed as
, c symbols. (Page 27)
a, a Cursorkeys
• Press these keys when the cursor position istobe shifted. When oneof thesekeys is
pressed once, a shift ofone display location results. Ifit remainsdepressed, the shift is
automaticallyrepeated.
a Delete key
• Press to delete one character tothe left ofthe blinkingcursor. (Page 28)
'•"-'" Command key
• Each time this keyis pressed,fivecommands are displayed.
• When the desired command is displayed, press the o keyandthe command will be
executed. (Page 46)
•Inthe inputmode,after"BUZZER ON(OFF)" is displayed "AUTO INPUT^"and
"AUTO INPUTV are displayed but thesecommandscan't be executed.
(Symbolized here as H .)
B Execute key
• This keyis used to execute the commandspecifiedusing the& key. (Page 46)
crbTEL input/output key
• Press this keyto input/output telephonenumbers,etc. (Page 26)
16

S MEMOinput/output key
• Press this keyto input/output schedule memos, etc. (Page 37)
-•SECRET _ „
i 1 Secret key
• Press to designate the keyword forthe secretarea, orto dusluiuitit/i unml ilm socret
area. (Page 43)
(Symbolized here as H .)
'*; Dataoutput key
• Press this keyto output names and telephonenumbers in soguuncu. (Pay" 311
o Clear key
• When an erroneousnumericalvalue is input, itcanbe cleared by pressing this key
immediately after input; also releases overflow or errorcheck.(This keycanbe used
both inthe fingermode and touch mode.)
r^ All clear key
17
Press this key whenbeginning a calculation or whenstartingcompletelyoveragain;
also releases overflow or errorcheck.This key overrides the autopower-off function.
(This keycanbe used both inthe finger mode and touch mode.)
Finger Writing Function
This unit hasa "FINGER WRITING" function which allowscharactersetc. tobe out-
lined by finger onthe Input Screen. The writing formswhichallow tobe recognized are
shown on page 21.
Be sure to write characterscovering the full area ofthe Finger Input Screen.
• Usage
Example: Input character"A".
(1) Turn the power on.
(2) When O mark isnotlitonthe display,select the fingermode by pressing g/g key.
6SI key.
•— ••>.-... =u UHnq, D ]
(3) Press the gg key.
Finger Input Screen (5X6 matrix)
Cursor blinks atthe leftmost
position ofthe display.