Sharp PC-1247 User Manual

• Ba s i c 2 KB RAM
S y st e m a rea : 0800H - OAFFH
U ser a r ea : OBOOH - OFFFH
•E x pan sio n 2KB RAM (PC - 1 2 4 7 on l y )
Al I o pen for u se r ar e a
2000H r------,
: : 2K B , exp a n sio n
2 7FFHL---- - ' (PC - 1 2 47 o n l y )
~8 b it-'1
o _ sooHI
_ I 2 K B , basic
1 0
FF F H '---------'-
SHARP CORPOR A TION
3 7FFH I J
r-10 bi t ---i
MAIN ROM
14K s tep
x 10 bi t
( 17Kb yte s )
[ CPU interna l ROM ] [ E x t e rnal RAM ]
OOOOH ....-- - --~
3 . MEMORY MA P
Auto power o ff time : Approx . 11 minutes
Options: CE-124 , C E-125, ~E-126P ,
CE - 152
16-characte r l i qu i d c ry s tal dis -
play with 5 x 7 do t cha r act e rs
(LF7133E)
Character dimension s :
4 . 5(H) x 2 . 7(W ) mm
Character pitch : 3.45 mm
0 ° C ~ 40 ° C (32° F ~ 104 ° F)
6V DC Lithium c ells
Type : CR-2032
App rox . 1000 h o u r s
(D i sp l ay: 55555555, amb ie nt
tempe r ature : 20 ° C ( 68 ° F ). The
operating time s l igh t ly var ie s
depending upon the use of
battery.)
Battery will last fo r a pe r iod of
2.4 m o nth s , assuming t he us e of
on e hour a day w h i c h consi sts of
10 m i nute s of op er at i on or pro-
gram e x ecution and 50 m i nut e s
of d i splaying.
0.07 w
135(W) x 70(D) x 9.5(H )mm
5 - 5 / 16"(W) x 2 - 3 / 4"(D) x3 / 8"(H)
95g (with cells)
Weight :
Power Consumption :
Dimensions:
Operating Time:
Display:
~"'"'
0.01~~
o.~~~
w~ . 0 5
0.5
Operat i ng Temperature :
Powe r Supply:
PC- 1246
PC -1 2 47
OOZPC12 4 7 SM / E
MODEL
CODE
Memory P r otection :
E d i t i ng F e atu r es :
Basic calculations :
Add i t i on , s ubst r act i on multi -
pl i cation, division
Funct i on calculations:
Trigonometric and inverse
trigonometric functions, loga-
t i thmic and exponential func-
tions, angle conversion , square
root, interger, absolute , sign
operators , tt .
Cursor left and right ( > , < ) r
character inse r t (INS) , character
delete (DEL), line up and d o wn
( i . t )
Battery backup (the contents of
programme and its data are
retained at power - off.)
Operators:
10 stacks
5 stacks
16 stacks
8 stacks
Sub - rou ti ne:
For - NEXT :
Funct i o n :
Data :
Stack :
Programming Language:
CPU:
System ROM:
Memory Capacity :
Calculating System:
10 digits (mantissa) + 2 digits
(exponent)
Algebric system (with priority
judgement function)
BASIC
4 bit CMOS
17.4K bytes
System Area
About 0.5K bytes
Area dedicated to data
208 bytes
Program / data area
1278 bytes (PC-1246),
3326 bytes (PC-1247)
Calculating Capacity:
2. SPECIFICATIONS
PR I NfUSJM;GOSUBRETIJRN D I M E ND CSAVE C LOAD P...+NP
0 0 ~ 0 ~ ~ ~ D l rnTER I
S P C
INPUT ! f 1HEN G01D FOR TO STE P J\'EXT L I ST RUN
0 ~ @.l0@JGJ [TIIBJ(g~
! !I # $ ~ & ? : ' :
@J0000~ @l [i]@J 0
D E G RAD G RAD
RU N P RO
S HI FT E I
I B US Y p DEF
P O WER
OF F C=:] ON
ON
~
[I] [I]
~
DE L
I NS
~
[3J
[TI
~
POCKET CO MPUTER
SHARP
1. KEY LAYOUT
SHARP
-
P C -1 246
SERVICE MANLiAl

Sharp PC-1247 Specifications

General

Model	PC-1247
Category	PDA
Display Type	LCD
Input	Keyboard
Release Year	1983
Display Resolution	24 characters x 1 line
Display	Monochrome LCD
CPU	Sharp SC61720

Summary

2. Specifications

4. CPU (SC61720D03)

CPU Signal Description

5. PC-1246 Circuit Diagram

7. PC-1247 Circuit Diagram

9. Check Items and Cautions

9-1. Off Current Check

Measures current consumption when the device is powered off.

9-2. On Current Check

Measures current consumption when the device is powered on.

9-3. RAM Capacity Check

Procedure to verify the RAM capacity on the display.

9-4. Battery Replacement

Procedure after battery replacement, including power on and reset.

9-6. Auto-Power-Off Check

Verifies the auto-power-off function timing.

11. Parts List & Guide