Here is a layout gude for the 1500 and 1000. If you would
like to add a jack to your cosputer to get a ■onitor output,
it is very simple! In the case of the 1000, simply solder a
47 MF cap rated at least 16 volt (+ side) to pin 16 of the
ULA chip. The other side of the cap (- side) goes to the
center of an RCA jack. The sleeve of the jack goes to metal
can of the sodulator. In the case of the 1500, instead of
connecting to the ULA chip, you connect to the lower side of
D-19. (it’s marked on the board) The other connections are
the saae. The 1000/1500 actually has a cleaner vidio than
the 2068! It is also fairly easy to convert your B & N TV
to a aonitor. You should use a TV that is isolated froai the
AC line. Alaost all portable or 12 volt Bedels will work. If
you want to do this, give me a call for *ore details.
You aay also want to install a Reset switch. If so, refer to
the April RAMT0P. DON’T ATTEMPT THIS UNLESS YOU HAVE A BIT
OF ELECTRICAL KNOWLEDGE! THIS IS ALSO, AT YOUR OWN RISK!
TS-IOOO
PRINTER
RAM PACK
SPECTRUM
CALLS AND
POKES
Here are a selection of POKEs
and ROM calls for the
Spectrum that produce some
interesting effects without
upsetting the machine.
Justin Moffitt
POKE 23756,0 . Makes first line line O
POKE 23756,1 . Makes line O line 1
POKE 23609,25 . Makes keyboard bleep
POKE 23609,0 . Makes keyboard silent
POKE 23658,8 . Turns CAPS LOCK on
POKE 23658,0 . Turns CAPS LOCK off
POKE 23755,100 . Disables list command
POKE 23755,0 . Re-enables list command
1 POKE 23659,0 . Makes 24-line screen
9999 POKE 23659,2 . Makes 22-line screen again
POKE 23736,181 . Stops the START TAPE
_ _ _____ prompt
RAH TOP
POKE 23692,255 .
POKE 23613,0 . . .
POKE 23613, PEEK(23730)-5
LET t=USR 3582 .
LET t=USR 4757 .
LET t=USR 3213 .
LET t=65536-USR 7962 .
LET t=USR 3583 .
LET t=USR 3652 . ; .
LET t=USR 3330 . < .
POKE 23617,236 . .
OUT 10, colour .
POKE 23617,14..
LET t=USR 1331
LET t=USR 1290
LET t=USR 1269
-ET t=USR 1251
LET t=USR 1551
LET t=USR 1248
LET t=USR 1333
LET t=USR 1327
LET t=USR 1267
LET time=(65536*PEEK .
23674+ 256*PEEK
2367,3 + PEEK 23672) 60
for US
Using the 'border effects'
. Stops the SCROLL?
prompt
— Disables BREAK key, so
when it is pressed the
program hangs up
.. .Disables BREAK
completely
....Scrolls screen one line
....Prints the Sinclair prompt,
but does not clear the RAM
....Stops and asks, SCROLL ?
....Prints free memory in
bytes
.. . .Scrolls bottom half of
screen one line
...Clears top half of screen
...Scrolls whole page to top
line, must be followed by
CLS
...Changes cursor to ?
...Changes BORDER colour
to f, and gives a CLICK,
useful for routine when a
game has been won
Changes cursor to _
Gives special border effect
in magenta and blue
Gives special border effect
in blue and red
Gives special border effect
with special sounds
Gives border effect in
green and magenta
Gives a list of programs on
tape
Gives border effect in
white and black
Gives border effect in cyan
and blue
Gives border effect in
white and blue
Gives border effect in blue
and yellow
•Gives time in seconds
since the computer was
turned on, and only resets
every four days
The border effects give the effect of the save bars in
different cotours. They only stop after SPACE has been
pressed, but some contain a delay loop as well.
For example:
10 PAPER 1 : INK 7: LET t=USR 1333:CLS
15 REM rest of program
TO SUBSCRIBE TO THE RAHTOP, SIMPLY FILL THIS HANDY FORM
OUT AND SEND IT AL0M6 WITH YOUR CHECK FOR $7.50/6 MO. OR
$15. 00/YEAR OR IF YOU ARE OUT OF OUR AREA, THE COST IS
$6/6 MO. AND $12/ YEAR. MAKE CHECKS PAYABLE TO THE RAMTOP.
nmttnmmmmmmmmmmtmmmmmttm
ttPLEASE PRINT'!! CHECK ONE- 6 MONTH _ 12 MONTH _ It
It He publish every aonth! It
It It
t INANE _ _ It
tl tt
IIADDRESS _ II
tl tt
ItCITY _ STATE _ ZIP _ II
tt ~ tt
IITYPE OF COMPUTER (S) _ tt
tt - - — ^
II II
IIOTHER PERIPHERALS _ tt
IIKail to: Robert Parish, 12706 Leeila Ave,, tl
tt Cleveland, OH 44135 tt
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