Radio Shack 1650 User manual
Cat. No. 60-2187
RAO
SAC
1650
COMPUTERIZED PORTABLE SENSORY CHES
PLEASE READ BEFORE USING THIS EQUIPM NT
®
Radio /haek
l
I
You'll never be without a chess partn r again, with your
RADIO SHACK 1650 Sensory Chess Game.
You can select om nine differnt levels of ability r the
computer (eight normal play levels and one"special problems"
level), to match your own abili. The easiest level will allow
even a beginner to win occasionally; e most diffic
ult level
will give even a master a rou h time.
Other features inude:
• S
e
l
e
ab
le P
lay
Modes The
co
m
puter can be
y
o
u
r
oppon
en
t, play
both si
d
s of a
g
am
, o
r
t
he refer
e
e in a
game beeen you and a friend.
• Take Ba
Up
to
tw
o
m
oves ma
y
be
t
a
k
en
back if you
ch
ang
e
y
o
u
r m
i
n
d.
• Memory -
T
h
e
po
w
er ma
y b
e tu
ed
o
in the
m
i
ddl
e
of a
g
a
me and
the
c
om
p
ut
e
r
w
i
re
m
emb
er
the position
o
f t
he
bo
ard,
t
h
e
leve
l of play
,
and whos
t
u
i
t
is for up to one
year.
•
e
gal M
o
v
e
Signal -The c
o
mpu
t r s
ig
nal
s i
f
you t
r
y to
ma
k
e a
n i
lle
g
al mo
v
e
.
• U
s
ua
l
C
hess
Rules - The c
om
p
utr
llows the u
sual rul
e
s
of chess, including casing, capturing en pass
ant, pawn pro
motion
,
e
t
c
.
Copyght
198
Tandy Corporation
2
"Plug-in"
Pies
-The move are entered into the compu
t
e
r
w
h
e
n t
h
e
p
i
e
c
es
are
p
resse
d
li
g
htly into th hol s in th
e
chess
b
oar
d
.
• Carrying Case Cover
-The
p
ie
ce
s ar h ld
i
n
p
la
c
e so
you
m
ay m
o
v
e
t
he ga
m
e wi
t
ho
u
t chan
g
in
g
th
p
osition of
t
he
board. It may also be placed under the board as a suppo
s
t
and
r eas
y
viewin
g.
• Ba ery Power
-Three AA
batt ri s
w
ill
p
ower th unit
r
up to 50 h
o
u
r
s o
f p
lay
. F
or
b
est results
,
w r
c
o
mme
nd
o
ur
Ca
t
. N
o
. 23-552
al
k
aline
b
a
ri s
.
Impoant Note
• Your RADIO SHACK 1650 Senso Chess Game is pro
grammed to p
la
y c
hess with you
,
not to tach th
e ga
me
t
o you.
We
h
a
ve in
uded a co
py
of
t
h
e
r
u
ls of
c
h
ess
, in
c
as
e
you
are not
miliar wi
t
h
t
h
e
ga
m
.
I
f
y
ou ned add
it
io
na
l
i
n
rmat
i
o
n
, y
o
u
r local li
b
rary has sveral
g
ood
b
oo
ks on
the
s
ub
j
ect
.
• e computer is programmed w
ith a varie of i-<tant
respo
es to
o
penin
g
moves
.
These res
p
onses
om
t
h
e
' Gp
e
n
ing ook", The computer will, however, calculate res nses
r any
u
n
u
s
u
al open
i
n
g
moves
.
KEYS AND FUNCTIONS
3
3
(1) Sensory Chess Board - enters the m ves into the comnt
ter when the pieces are pressed into the board's holes
(page
6)
(2) Battery Compament (See page 5 for battery installa
tion.)
(3) Chess Piece Compament holds the complete chess set
and reference instructions.
(4) Control Indicators
WHITE -lights when it is white's turn
to move, or when
white pieces are bein set-up (page8-9)or verified (page
8
BLACK lights when it is black's turn to move, or when
black pieces are being set-up or verified.
2nd F lits w
hen
t
he
2nd F k
e
y
is
p
re
ssed. P
r
essi
n
g
2nd F again turns it off.
CHECK lights w
h
en
the
c
om
p
uter
p
l
aces you i
n che
ck.
MATE
-lights in dition to the CHECK indicator when
a check
mate situation is reached; the game i over. The
WHITE o
r
B
L
ACK i
n
di
c
ator
w
i
l
igh
t
t
o s
h
ow w
h
ic
h
player has been checkmated.
The
MATE
indicator lights alone when the game is
declared a draw because of a stalemate or immediate
three-fold repetition, or when the computer finds no mate
wit
h
i
n
u
r
mov
es
t
o a
g
i
ve
n ches
s
p
r
o
ble
m
wh
e
n
se
t to
level 8.
(5) Control Panel Keys
NEW GAME press o set the computer for the beginning
of a new game with the level unchanged, white to play
from the bottom, and same response status (ie. 'Player
vs computer" or 'Player vs Player'' mode) as was set
before.
Press when the 2nd F indicator is on, to completely clear
the computer,
LEVEL - press to select one of the nine ability levels
r
the computer: 07 for normal play, 8 or special problem
sol
v
in
g (p
a
g
e
10).
Press w
h
en the
2nd F indicator
is on
, to tu t
he
s
ou
nd
on/o
PLAY
-press
when
y
ou wa
the
c
om
pute
r t
o
ma
k
e
y
o
ur
m
ov
e
r
y
ou
;
this allows
y
o
u
to s
wi
t
ch
c
ol
o
r
s
w
it
h t
he
c
ompu
ter
,
or ma
k
e the com
p
uter p
l
a
y b
oth s
ides. Al
so
,
whe
n
p
la
yi
n
g a
t leve
l 0-7
the comput
e
r
ca
n
b
e
v
ery
slow
m
a
k
in
g i
t
s m
o
v
es
, b
ecause of a
the po
s
s
ibili
t
i
es
i
t
considers. Press this key while the computer is "thinking''
to force it to make a move immediately.
Press when the 2nd F indicat
or is on, to change to the
player-vs-payer mode (page 10).
2n
d
Function press
t
u
o
n t
he
2nd F indicator. T
his
a
c
t
i
va
tes t
h
e alt
e
at
e
fun
c
t
io
n
s of t
h
e control panel
k
e
y
s
.
Press it again to turn the 2nd F indicator off.
TA
K
E BACK -press
w
hen
y
o
u
w
a
nt t
o ta
k
e
b
ac
k
mo
v
es
already entered into the computer (see page 6-7)
4
Pi
ece
Keys press t
o select
p
artic
u
lar ch
e
ss
p
ie
c
es when
i
n
th
e s
e
t
-
up or verif
y
mode
.
(6)
ON/MEMORY Switch
activates
t
h
e
g
ame w
h
e
n
set to
ON;
holds t
h
e pos
iti
on of the
b
oard in the computer's
memory, while conserving battery power, when
set to
MEMORY
.
(7) H
o
riz
o
ntal P
o
s
iti
o
n
Indica ors show
the
h
ori
z
o
n
tal
pos
i
t
i
on of
t
he pieces on the
b
oar
d
.
(8)
Vertical Position/evel Indicators
show
t
he
v
e
r
t
i
c
al
position of the pieces on the board.
T
hese
i
n
d
ica
tors also show t
h
e le
v
el of pla
y s
elected
r
th
e
c
o
m
puter
(0 = no
i
n
d
icators l
ig
hte
d
, 8= all
i
n
di
c
a
tors
l
i
g
hte
d
)
.
(9) A
C
L B
utto
n
- I
f the com
p
uter loc
k
s up
,
b
eca
u
se of
s
tat
i
c
di
sc
h
ar
g
e or
s
ome o
t
h
er reason
s,
set
t
he
MEMORY/ON
sw
i
tch to
MEMORY,
t
h
en use
a
p
i
n
or ot
h
er
s
ha
rp o
b
j
e
c
t
s
to
p
ress
the ACL button T
h
i
s resets
t
h
e
c
omp
u
t
e
r
a
n
d
clears the memor
y
.
GETTING STARTED
Bae Instaation
Remove e baery compament cover on the b ttom of the
unit and install three AA baeries. Be sure to observe correct
polarity as indicat inside the compament. Then replace e
cover.
For longest life, we rec mmend our 23-552 alkaline batteries.
Never leave weak or "dead" baeries
in
this unit.
Even "leak
pof" baeries can leak daming chemicals.
5
Seing the Level
After installing the baeries, set the ON/MEMORY switch to
ON and press LEVE The number of lighted veical position.
level indicators will sho
w
the se
in
g
of
t
h
e
computer'
s s
kill
level (08). is
e easie
s
t le
v
e
l and 7 is
t
h
e
m
os
t diff
i
cult
.
Level
8
is
a
spe
c
ial
p
r blem s
olving level (page10).
The level will a
u
tomaticall
y
1 (
o
ne indicator on wh
e
n \ ou
pre
s
s the LE
V
EL
k
e
y)
the first
time you tu
on
the g
a
me or
a
n
y
time the b
a
eries hav
e
bee
n r
e
mo
ve
d.
R
epeated
ly
pre
s
s LE
VEL u
nt
i
l yo
u reac
h
t
h
e d
e
s
i
r
e
d
lev
el
set
t
in
g. Y
o
u
m
ay
ch
a
n
g
e the
l
e
v
el
sein
g
as oft
e
n as you
like at
the be
g
innin
g
f a ga
m
e
,
o
r during a
g
ame (wh
e
n
it
is
y
our tu
to ma
k
e a mo
v
e
).
Y u may check the level seing during a me, when it is your
tu,
by p
re
ss
in
g L
E
V
E
L
once.
W
hen
y
o
u r
e
sume p
l
ay, the
v
e
ical position
/
level
i
n
d
i
c
ators
wi
l
l
go o
ff.
PLAYING THE GAME
Making Moves
Your Moves
To make a move, press down on the piece you w nt to move;
you wi hear a beep and the vertical/horint l indic tors will
mark the present position of the piece. Then move the piece to
its new position and press down gain. You will he r nother
beep.
If you ch nge your mind about your move bere you press
down the piece in its new position, press it a second time in
its present position and begin g in (with the same piece or a
dierent one).
mputer Mov
After you complete your move the computer will begin to
consider its move, unless the computer is set r the Pl yer vs
Player mode (page ). The indicator r the computer's side
(Black or Whi) will ash while the computer is 'thinking'.
en ready, the computer wi indic te its move. First the
horizontal/veic l indicators will show the position of the
piece to be moved. Press 1t down nd the computer wil I indic
te the piece's new position; move the piece nd pss it down
in i new position.
Is your
rn
again.
The mputer m y take anhere om a few sends to
many hours to decide its move, depe
ndi
n
g
o
n
th
e l
evel se
in
g
and th
e p
ro
g
ress of the
g
ame
. You m
a
y
p
r
e
ss PL
A
Y dur
in
g
t
h
is
t
ime
t
o
r
ce
the computer to m
ak
e it
s m
o
v
e immediatel
y
.
6
Taking Back Moves
W
hen
it
is
y
our tu
, y
ou may t
a
ke back (e
r
a
se)
t
h
e p
r
e
v
io
u
s
o individu l moves.
To
d
o thi
s, p
r
ess
T
AKE BACK
.
T
he i
ndicators will s
ho
w
e
l
as
t
piece
move
d (
the computer
'
s mo
v
e
). Press the piece do
w
n
an
d t
he in
d
i
cat
ors will sho
w
its p
r
evi
ous p
o
sition.
Move e
pi
e
ce to
th t
p
osition nd press
it down again.
If the m ve you are taking back was a pring move,
remem
be
r
to put back t
he
c
a
p
tured piece
. If you are unsure of w
h
ich
piece to put bk, use the veri mode (p ge 8) to identify
the piece.
Now pre TAKE BACK again and llow the same procedure
to take bk your previous move.
If you only take back one individual move (the computer's)
you may enter a new move or the computer. However, this
wi switch e sides you and the computer are playing (white/
black); when you enter a move manuay, the computer auto
matic ally makes e next move.
Iegal
Mov
If you attempt to make an legal move during your tu, the
computer
will
sound a o-tone, high-low signal and continue
to show e previous position of yr piece. In this case, you
may t a dierent move for at piece or return that piece to
its previous position (press
it
down) and move another piece.
If you aempt to make move r the computer, other than
the one
it
indicates, e twtone signal wi sound
If you pres
s an improper contr panel key (such a LEVEL,
ile the computer is deciding i move) a low pitched signal
will sound.
7
Caling
we it to e
If you want to castle, press down the king, mo ,e rook
proper position, and press
it
down again. Then move"
to the proper position without pressing
it
down
(Check, Checkmate, Stalemate,
and D aw
by
3-fold Repetition)
When the computer puts yr king in chk, the CHECK
indicator will light. If you put the computer's king in chk
the computer will k
now it, t the indicator will not high
If a game ends in checkmate, the CHECK and MATE indica
tors will light; the WHITE or BLACK indicator will also light
to show
w
h
i
c
h si
d
e is checkmated.
F
or a
s
t
a
l
e
m
ate or
d
ra
w by immiate 3 fold repetition, o
n
ly
the
M
ATE indicator will light
.
Staing a New Game
You may reset the computer for a new game, when
it
is yr
t
u
, b
y pre
i
n
g NEW GAME. T
he
l
ev
e
l
w
i re
m
in t
h
e
s
a
me.
Changing
Sides
In addition to e meth deribed under "Taking Bk
piece to put back, use the veri mode (page 8) to identi y
the piece.
Now pre TAKE BACK again and llow the same procedure
to take bk your previous move.
If you only take back one individual move (the computer's)
you may enter a new move r the computer. However, this
wi switch the sides you and the computer are playing (white/
black); when you enter a move manually, the computer auto
matically makes the next move.
Iegal Moves
you aempt to make an illegal move during your tu, the
computer wi sound a o-tone, high-low signal and continue
to show the previous position of your piece. In this case, you
may t a dierent move r that piece or re that piece to
its previous position (press it down) and move another piece.
If you aempt to make a move r the computer, other than
the one it indicates, the o-tone signal will sound.
If you press an impper col panel key (such as LEVEL,
whe the computer is deciding its move) a low pitched signal
will sound.
7
Caling
e it to e
If you want to castle, press down the king, mo"
,e
r
ook
proper position, and press it dow again. Then move'
to the p
per position
without pressing it down.
(Check, Checkma e, Stalemate,
and Draw
by
3-fold Repetition)
• the CHECK
When the computer puts your king in che, ;
indicator ll tight. If you put e computer's king i."""
the computer will know it, but the indicator will not
I '
If a game ends in checkmate, the CHECK and MATE indica
tors will light; e WHITE or BLA
CK indicator will also light
to show which side is check
m
ated.
nly
F r a stalemate or draw by immediate 3-fold repetition,
O
the
M
A
T
E i
ndi
c
ator
wil
l l
i
ght.
Staing a New Game
Y u
ma
y
rese
t t
h
e
c
m
p
u
t
er
r
a new
g
ame
,
w
h
e
n
i
t
i
s y
r
t
u, by p
re
ssin
g
N
EW G
A
ME. T
he level will r
e
m
ai
n
the sae.
Changing
Sides
In
add
i
ti
o
n
to t
he me
t
h
d
e
r
i
bed und
e
r
"
T
a
kin
g
B
k
Clearing the Board
If you want to clear the board completel , in order to set up
special situations, press the 2nd
F
key so that the 2nd F
indicator lights; then press NEW GAME. (See "Seing Up
Special Situations"' below.)
i
◄
you
only
l
the
not
ions
y
side, by pressing the WHITE/BLACK key. The WHITE
k4
BLACK control indicators will show which side is bein%
veried.
You may verify a the piece positions r
b
oth sides
or only a
single piece. Always check he WHITE/BLACK control
ind
i
cator
s
wh
en
y
o
u a
re
v
e
r
i
f
yin
g
.
If you enter a new move the computer wi l automatilly
retu to the p ay mode.
If you wish to set up a situation with only a few pie
m
a
y
cle
a
r the bo
a
rd
(
as describ
e
d
above)
an
d
t
h
e
n
the
p
ieces
y
o
u
n
ee
d
.
ing Up Special Situations
T
hi
s fea
tur
e
a
ows
you
to
m
o
v
e
, a
dd
,
or
r
em
ov
e
p
iec
e
bo
ar
d
in
a
n
y w
a
y y
ou l
ik
e
. (
The no
r
mal
les
of ches
a
pp
l
y
in this
mo
de
.) Us
e this mode t
o
set
up
s
p
eci
a
ls
,
t
o
hel
p y
ou
pr
actice
y
ou
r
chess s
k
ills
.
This
m
o
d
e
entered
a
n
y time -even
d
u
r
i
n
g a ga
m
e.
I
f y
o
u u
p
s
et
t
h
e po
si
t
i
o
n
of
the
p
ie
c
es
,
or
r o
t
h
er
re
a
son
s a
r
e
not
su
re
at th
e
b
oard
i
s
c
o
r
r
ect
,
the co
mp
ut
er
ca
n t
e
ll y
o
u
he pr
o
p
er
p
o
siti
o
n o
f
e
v
e
p
iece
.
When it is your rn, press e desired piece key. A vertical
indic
a
t
or a
n
d o
ne or
mo
re h
or
i
zo
nt
a
l ind
i
c
a
t
o
rs
w
i
show the
position(s) o
f
e select
ed p
iece
(
s
)
.
P
r
ess th
e
s
a
m
e
piece
k
e
y
a
g
ain to se
e
i
f
the
r
e
a
re
a
n
y mo
re
p
ieces o
f
th
a
t
k
in
d
on th
e
b
o
a
r
d.
I
f
t
h
e
mp
ute
r
n
d
s n
o mor
e o
f
the se
l
ec
te
d
pi
e
c
e
,
i
t
w und a o-tone signal and re to the play me (the
rre WHITE BLACK ntrol
i
nd
i
to
r
will light).
If a piece is missing or in e wrong place, put it back
without
preing down.
Y
ou
m
a
y
v
e
ri
f
y
e
p
i
e
ce
po
sitions
r
eithe
r
Verifying Pie Position
Moves," you may change sides with the computer by pressing
PLAY when it is your turn. The computer will indicate a move
for your side and you may begin playing the other side.
You may cha
nge sides as oen as you like; you may e en press
PLAY eve time and let the computer play the entire game
against itself.
If you want to bin a me playing the black pieces,
set up
th
e
boa
r
d w
h
the
b
l
ac
k
p
ieces
a
t the bo
o
m
a
n
d
th
e
wh
i
t
e
a
t
t
he
t
o
p. T
h
e
n
pr
ess
NEW G
AME and
P
LAY
in t
u
.
T
h
e
co
mpute
r
w
i
ma
k
e
a
m
ov
e r
w
hite
(
a
t th
e
t
o
p o
f t
he
bo
ar
d
)
and y begin by moving the black pieces.
8
enter the set-up mode, press 2nd
F
so th t the 2nd
F
~eator lights; en press e piece key for the piece you
·
want
to
move, add, or remove; select e desired color by
pressing e WHITE/BLACK key.
To
move a pie,
press down the desired piece (in its current
position), move it to a new position, and press it down g in.
To add
a
piece, simply press down the new piece in any
empty
space.
remov
e piece
, p
ress down the
p
iece in it
s
c
ur
ren
t
po
siti
o
n
and r move it.
en you exit the set-up mode, by pressing the 2nd
F
Key so
at the
i
n
dic
a
tor goes o
ff,
the
f
irst move m
us
t
m
a
de
by the
side with
the sme co
l
or s the
l
ast
p
iece yo
u s
et-
up. I
f
y
o
u
want t
he co
mp
uter to m ke the
f
irst move
f
ter e
x
itin
g t
he
set-up mode, press e PLAY Key. This mode is especially
useful w
hen u
s
in
g l
evel
8
(p
age
10).
(Remarks: C
re
f
u
lly
check the
p
osition
b
e
re startin
g
to
play
ae
r
seing up
position.
T
he computer a
l
w
y
s
ssu
me
s t
h
at
you hav
e ente
r
ed
l
e
g
l
position.
A
nd th
u
s n
y
i
ll
e
g
l p
osition
may y
i
ld unpredictable response).
Tuing the Sound On and O
Th sounds
o
m y
our
C
he
ss G
me
a
id you d
ur
in
g pl
y
nd
wa you wh
en
a m
i
st
k
e h s
b
een m de.
H
o
w
ever
, y
ou mi
g
ht
nd s
it
u
tions where the so
u
nds re dis
acting to
y
o
u
or
others. In is case you may temporar ly turn off the sound.
9
~refully
the keys
«a
You mu wa
t
ch
t
he
i
ndi
t
o
rs a
n
d
pre
ss
w
h
en
pl
a
y
i
ng
witho
u
t sound
.
4 F
indicator
To
turn
off the sound press LEVEL while the 2
is on. Repeat the procedure to turn the sound on again.
Game Memory
You may move e ON/MEMORY stch to MEMO"""""
time during a gam
e
,
ev
e
n
w
h
i
l
e the co
m
p
ute
r
1s deci
b'�;
y
a move. The ay will be stop
ped at that point, and
·II remember
t
po er will be conrved, but the computer
w ;
:
you
move
e
position of the board and will resume ay en
s
w
it
c
h
b
c
k
t
o
ON
.
T
h
e
c
o
m
pu
t
er
will "
r
ememb
e
r
"
t
he
p
o
s
ition o
f
t
he
b
o
a
r
d
f
or
u
p
t
o on
e
y
e
a
r,
w
i
th
a
e
s
h
s
et of
b
at
t
eries
.
Ave age Computer Move Times
T
he
ti
m
e t
h
e
c
o
m
p
ute
r
t
ak
es
t
o e
v
a
lu
ate
a
n
d res
p
o
n
d to
a
move will vary, depending on the level seing and the progress
of
th
e
gam
e
. I
t
wi
ll
r
e
sp
ond
s
ter t
o
openi
n
g
m
oves
,
s
l
ower
d
ur
i
n
g
t
he
m
i
d
dle of
t
he
ga
me
,
a
nd faster
g
ain
a
t the end o
f
a
g
m
e.
Level
0
1
2
3
4
5
6
7
8 (problem solving)
Average
Time
Per Move
2 seconds
seconds
15 seconds
1 minute
2 minutes
3 minutes
8 minutes
2 hours
seconds to 24 hours
10
Level 8- Special Problems
Level 8 is not intend d for normal chess play.
When set to
level 8, the computer wi try to nd a way to checkmate the
defense (the side playing against the computer) in ur or less
moves. It wi compute a possible moves and countermoves
(a maximum of four moves of its own and three counter
moves by the defense) until it finds a solution. If there is no
solution to the problem in ur or less moves, the computer
wi light the MATE indicator. Checkmate solutio
n
in
two
m
o
ves nor
ma
y
ta
k
es about a minute while the soluti
on in
ur move
s
wi
p
roba
b
l
y
ta
k
e a
und
24
hours
.
If
y
ou use the set
-
up mode t
o
r a s
p
ecial p
blem
, s
et u
p y
pieces first and the computer's pieces second. Then aer y
e
x
it the set
-
up mode
, b
y pressin
g
the
2
nd
F Key
so th
at e
2
nd
F
indicator
g
oes o
, p
ress the
PLAY Key
once to te
the
computer t
o
st
a
rt evaluatin
g
the
p
r
ob
lem.
If you press play after the computer has staed evaluatir he
problem, the MATE indicator will light and the co er
stops thin
k
in
g.
You may set up special situation, using the set-up mode, e
if the com
p
ute
r
can sol
v
e them
. O
r
y
o
u
ca
n e
n
t
e
r I 8
during a game, when you rea h a situation you can't ~re
out.
J
R
eme
mber, the above ti
m
es a
r
e
avera
ges. The actual times
m
i
g
h
t
va g
reat
ly
.
W
hile
i
n
e PVP me,
y
ou ma
y
as
k th
e
c
om
pu
ter t
o
m
ak
e
a
mo
v
e o
r y
by
pr
e
ss
in
g
PL
A
Y (w
i
t
h the
2
nd
F i
nd
i
ca
t
o
r
o). The computer will indicate a move, but the game will
remain n e PVP me.
Player vs Player (PVP) Mode
I
f
y
ou
w
ant to use
y
our
R
A
D
I
O SHACK 1650 chess Game
w
hen
p
l
a
y
in
g
a
g
ame with a
i
e
nd
,
se
t i
t to the PP mode.
I
n
t
h
i
s mode the computer wi
act as the
referee, making
sure a
t
h
e
moves are legal and
k
eepin
g up
w
it
h
the position
o
f
the b
o
ard
.
T
o ent
er
this mode
,
p
ress
P
LAY
whil
e
the
2
nd
F i
n
dica
tor
i
s
on
. R
ep
e
a
t the
p
r
edure t
o
re
t
u
to the
c
o
m
p
uter
play
m
e
.
CARE AND MAINTENANCE
Ve
RADIO SHACK 1650 Sensory Chess Game i a precion
electronic device. Don't drop it or subject it to rough
handling. Do not expose your game to extreme temperatures,
or moist, damp areas.
If the indicators become dim or the computer stas making
"impossible" moves, the baeries need to be replaced. We
recommend high-quaty alkaline baeries, such as our 2
3-552.
They w
i
pr
o
vide
u
p
to
5
0 hours o
f p
l
ay
in
g
t
i
me.
Never leave weak or "dead" batteries n this unit.
Even " eak
pro
o
f" batterie
s can leak dam
ag
ing chemicals.
11
P2t
P22
SCHEMATIC DIAGRAM
Vcc
21
Vc c
20
19
18
17
16
15
14
34
35
P37 P36 P35 P34 933 P32 P31 P30
12
T£ I ALL A€SISTO VALUES
At
4 0is4
1000l
UNtt$ MARKED OTWIS
2
ALL CAPIT VALUES
At
pf
UNt$$
AK£D OTHEISE
This product is warranted against de ects for 90 days from date of purchase from Radio
Shack company-ownea stores and authorized Radio Shack franchisees and dealers. Within
this period, we wi repair it without charge for pas and iabor. Simply
bring your Radio
Shack sales slip
as proof of purchase date to any Radio Shack store.Warrant
y does not
cover transpoation costs or does it cover a product subjected to misuse or accidental
dam
ag
e
EXCEPT AS P
R
OVIDED HE
R
EI
. R
ADIO
S
HACK MAKE
S
NO WA
RR
ANTIES, EXPRESS
OR IMPED, I CLUDI G
W
A
RR
A TIE
S
OF MERCHANTABITY AND FIT ESS FO
R
A
PARTICUR PURPOSE Some states do not permit Imitation or exusion of imphed
warranties; therefore, the aforesaid limitation(
s) or exclusion(s) may not apply to th
p
u
r
c
has
e
r.
This warranty gves you specific lega nights and you may also have other nights which va from state to state
We Service What We Se
RADIO SHACK
A Division of Tandy Corporaon
Fo oh, Texas 76102
3A7
Pri
n
ted
i
n Ho
n
g Kong
This manual suits for next models
1
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