Cromemco Dazzler User manual

•
Cromemco
u.s. Patent No. 4121283
Copyright ©1978 Cromemco, Inc.
[3
cromemco
I .. ".,.e'e.e.
SlMci ... r. "' compul'" _ pe,lp ..... I.
no IIERNAlIDC) AYI: .• NOUH'U .. VIEW. CA
Pan No. 023·0003
November 1978

•
•
•
Table of COntents
Section 1
Technical
Information .............................•.. 1
I
ntraduction
Design
Software
Operation
Functional Block Diagram
Memory Map Of Dazzler Picture
TV
Connection
Using Two Dazzlers In Your Computer
Test Program
Tune Up
Section 2
Assembly Instructions 7
Assembly
Of Dazzler Board No. 1
Assembly
Of Dazzler Board No. 2
I
nterboard Connection
TV Connection
Resistor Color Codes
Foil Diagram- Board No. 1
10
Schematic Diagram-Board No. 1 11
Foil Diagram-Board No. 2 , 12
Schematic Diagram-Board No. 213
Parts List 14,15
Warranty 16

•

•
Technical Information
•
•
Introduction
The TV DAZZLER® color graphics module
provides ageneral purpose interface between your
computer and your color TV, The DAZZLER® can
be used to generate games, animated displays, educa-
tional learning drills
or even light shows, all in full
color. The DAZZLER@) is manufactured by era-
memco Inc., 280 Bernardo Ave., Mountain View,
CA 94040.
The DAZZLER@ is built on two boards design-
ed to plug directly into any computer using the
5-100 microcomputer bus. The video output of the
DAZZLER@ can be connected directly to the video
input of acolor TV set. By using an optional RF
modulator, the DAZZLER@ can be conveniently
connected to the antenna terminals of the TV set,
rather than the input of the video amplifier.
With the DAZZLER® interface,
TV games that
are either unavailable, or available only in black and
white, can now be programmed in full calor. A foot-
ball can now sail over abright green playing field
under the software control of your computer.
Rocket ships can spew red-yellow flames against a
brilliantly blue sky. Or
perhaps you wish to chal-
lenge
your computer to agame of checkers or chess
on ared and black playing board-again generated
on
your TV screen by the TV DAZZLER® inter-
face.
If you use
your computer for business or ac-
counting purposes, the DAZZLER® interface can be
used
to display multi-colored graphs of the data
stored in your computer. Your computer can be
used to process and format the raw data while his-
tograms, charts
or graphs of the data are displayed
on
you rcolor TV.
The DAZZLER® interface can also turn your
color TV into a TV terminal. Alphanumeric charac-
ters
entered from a teletype or ASCII keyboard can
be displayed directly on the screen of your TV using
our DAZZLEWRITER software for character gener·
ation. Messages can also be generated internally in
your computer and displayed-in full color. Alpha-
numeric messages, titles or comments can similar~
be displayed in conjunction with DAZZLER
games
or DAZZLER® graphic displays.
1
Anew interface board
from Cromemco, our
D+7A I/O, is particularly useful for inputting analog
signals
for use in conjunction with the DAZZLER®.
Analog signals from joysticks,
for example, can be
input to the computer with the D+7A module for
use in controlling aDAZZLER®·generated display.
Another use of the DAZZLEA® interface is in
computerized instruction either at home or in the
classroom. Word recognition tests, "flash card"
arithmetic drills, and memory training can all be
carried
out with the excitement of afull-calor dis-
play. Games can be interspersed with learning exer·
cises to maintain student interest and enthusiasm.
(For more information on the use of the DAZ-
ZLER® see the December 1976 issue of BYTE mag-
azine, "The Cybernetic Crayon," pp. 24-29, 138·
141,
and the September 1978 issue of PERSONAL
COMPUTING, "DAZZLER® Graphics," pp. 58·72.1
Design
The DAZZLER® interface is avery advanced
design using over
70 MOS and TTL integrated
circuits
on two printed boards. Yet the OAZZLEA@
kit is easy to build. Aspecial varnish or "solder
mask" is used to guard against shorts during board
construction. And alegend mask is silk-screened
directly on the board to show precisely where each
component is plated.
Only the highest quality parts are used in the
DAZZLER® interface. The printed circuit boards
are double·sided glass-epoxy with plated-through
holes and gold plated edge
contacts. IC sockets are
used for all dual-in·Jine ICs. And carbon film resist-
ors are used for high-speed operation and tempera-
ture stability.
The mo DAZZLER® boards may be plugged
directly
into two adjacent slots in your computer.
A
l6·conductor ribbon cable, with DIP plugs on
each end, is used to interconnect the two boards.
Alternatively Board 2
may be mounted "piggyback"
on Board 1 so that only one slot is required. In this
configuration, seven additional
jumper wires must
be used to interconnect Board 1 with Board 2.

DAZZLER
-- -- ---------
-- ---
-- --------
- -- ------ -------
- = =.=r == =.=-- == =-=...-=-=
-----------------------_......:= - - --- - -- - - --
Software
Cromemco provides software support for the
DAZZLER® interface. Two basic software packages
are provided; DAZZLER® GAMES and DAZ-
ZLER® GRAPHICS.
The DAZZ LE R® games package consists of a
Cromemco DAZZLER® Games Instruction Manual
and sixteen games (see
box belowl on either a 5"
diskette (model FDG-S), or an 8" diskette (model
FDG-L). Either package is available
from Cromem-
co, Inc. for
$95.
The DAZZLER® graphics package allows the
user to display graphs, graphics and alphanumerics
on acolor TV set. It consists of a DAZZLER®
Graphics Instruction Manual and the graphics pro-
gram on either a 5" diskette (model DG R-Sl, or
an 8" diskette (model DGR-L). Either package is
available from Cromemco, Inc. for $95.
Operation
The DAZZLER® interface uses high-speed dir-
ect memory access (DMAl to read the memory of
the host computer and translates the information in
the memory into a color TV signal. The key advan-
tage of using DMA is that the DAZZLER® can dis-
play apicture while at the same time the computer
is executing either arelated or unrelated program.
Only a 15% slow-down of the computer execution is
realized during the DAZZLER® operation.
•CHASE!** -
the cross chases the circle.
•DAZZLE DOODLE* -
draw a picture using a
joystick.
•DAZZLE-MATION -
for creating animated
displays.
•MAGENTA MARTINI -an amusing
DAZ-
ZLE-MATtON example.
•
DOGFIGHT** -an aerial battle game.
•4D TIC-TAC-TOE - a
4D extension of TIC-
TAC-TOE.
•GOTCHA!** -
two players vie to occupy
territory.
•KALEIDOSCOPE - for captivating color dis-
plays.
•LIFE -an instructive
game by John Conway.
•
XLlFE - a particularly attractive LIFE dis-
play.
•SPACEWAR** - a cosmic fight
to the death.
•
TRACK* -maneuver through adifficult
maze.
•DAZZLECHESS -play chess
with atireless
opponent.
•AMBUSH* - take pot shots at an enemy con-
voy.
•
SOLO** - plays a tune on the JS-1 console.
•TANK WAR** -
tanks fight in a mine field.
*Requires asingle JS-1 joystick.
** Requires two JS-1 joysticks.
2

•Afunctional block diagram
of the DAZZLER®
interface is shown below. A3.579545 MHz crystal
oscillator is used to generate the color video sub-
carrier. The video output amplifier delivers astand-
ard 1 V negative sync composite video signal into a
52 ohm toad. Asix-foot length of 52 ohm coax
cable is supplied with every DAZZLEA®.
While the video output signal is generated by
Board 1, Board 2is used to communicate with the
computer. Ahigh speed (one million bytes per
second) DMA controller is the heart of this board.
The controller
issues a "Hold" command when it is
ready to access the computer memory. When the
computer finishes the current machine cycle it issues
a "Hold Acknowledge" signal to begin DMA.
In addition to the high-speed DMA data link,
two output ports and one input port are built into
DAZZLER® Board 2 for the exchange of control
signals between the computer and DAZZLER@.
These are output ports 0EH and 0FH and input port
0EH.
The most significant bit of output port 0EH is
used to enable or disable the DAZZLER®. A "1" at
this
bit location turns the DAZZLER® on. A "0"
turr"!s the DAZZLER@ off. The DAZZLER® can
•
~.
Functional Block Diagram
52 OHM
VIOEO OUTPUT
HOLD!
HOLD A
ADDR
BUS
DATA
BUS
•Dazzler
Board No. 1
3
DazzlerBoard No. 2

DAZZLER -
--- -""== -------- -- --
== -- - -' ==-=-= =:: ="="= =-:= =
------------~ = ~=;-~ ;;;;-:;... =
also be turned off manually by depressing the
"clear" switch on the computer front panel. The
remaining seven bits of output port 0EH are used to
set the starting location of the picture to be display-
ed in the computer's memory. As will be discussed
below,
the picture may require 512 bytes of mem-
ory or 2K bytes of memory depending on the mode
in which the DAZZLER® is operating. In any event,
this must be static memory with an access time of
1microsecond or faster. Asummary of the use of
outpO! port 0EH is shown below.
Bit 07 is not used. Bit 06 is used to set normal •.:
resolution (32 x 32 element picture for 512 bytes or /
64 x 64 element picture for 2K bytes) or resolution
X 4 (64 x
64 element picture for 512 bytes or 128
x
128 element picture for 2K bytes). Bit 05 sets the
amount of computer memory (starting at the loca-
tion given to output port 0EH) allocated to the pic-
ture. When 05 is "1," 2K bytes of memory are used.
When 05 is "0," 512 bytes are used. Bit 04 is used
to select between ablack·and-white display and a
calor display. Bits 03·00 are used in resolution X 4
mode to set the calor of a calor picture or the inten-
sity of ablack·and·white picture. Bits 03·00 are not
useq in normal resolution mode.
MS' LS'
Only two bits of input port 0EH are used. Bit
07 is low during odd lines and high during even
lines. Bit
06 goes low for 4ms between frames to
indicate end of frame.
STARTING ADDRESS OF PICTURE
Output Port BEH
D"
END OF FRAME
Output port 0F H is used to set the format of the
TV picture. The function of each of the eight bits
of this output port is shown in this table:
Only Two Sirt o( fnput Port srs Utsd.
D2alJ - No b1uo
01 -NOI \/Md.
05-0 - Pi.' .... in 512 byl .. 01 .... mo,l'.
In order to generate aTV picture with DAZ·
ZLER@,
the information that the DAZZLER@
reads from the computer memory must be properly
formatted. In resolution X 4 mode, each point on
the TV screen is controlled by just one bit in the
computer memory. When that bit is a "1" the cor-
responding
element of the picture is on. When that
bit is a "0" the picture element is off. In resolution
X 4 mode,
the calor and intensity of the picture is
set by bits 00 to 03 of the control word at output
port 0FH. For full calor in resolution X 4 mode,
multiple frames of different colors must be inter·
leaved.
In normal resolution mode,
the color and inten-
sity of each element of the TV picture are control·
led by afour-bit "nybble" in the computer memory.
Two elements of the picture are thus stored in each
byte (8 bits) of memory. (For this reason, a 64 x64
picture in normal resolution mode requires 2K of
memory.) The lowest order bit of each nybble (00) 6~
determines whether the corresponding element of ~
the picture contains red (1) or no red (0). Similarly,
01 controls green, D2 controls blue, and 03 sets
,
In ,osoIUlion X 4 b1Klt·
~nd"''';I. mode, DJ io the
moIl il1 .. nl bit
01 4·f>;1 inl i\'( control
w"'cl.
04 .. 0 _ B'~"'_·W"i •• pittur •. ~
04·1 _ Cal", pic.u~ ~
. .
,,
03"1 _ Hig/> in • .,.;"." cola,.
03-0 _Low in.ens;\'( cola,.
06-1 - RosoIuli"" X 4. Col.... ~nd inl.nli\'( .. 1by 04 10 DO: __ ,
06-0 _ No, .... 1 r-.olUlion. (32X32 10' 512·byl. pictur •. 64X&t I....
Zltobyl. pictu, •. 1 Colat _ intenoily 01 .-en piClu'e el ..... nl
... by 4-bil wo<cb in lhe .ompul'" ......... 'Y.
05-1 _ pi.I .... in Zlt'by ... ol .... mo.y.
01"0 - NOli' ....
00_1 _Rod Bi.
DO ilthe_1
00-0 - No reel .;.,i!i .... nl f>;1.
Output Port OFH
4

D·
... ZZLER ---- - -- - - ---
n. = -= === -- === -~==
--=-:.::.=~=:.:...._-------~ - ---- -- -- -
In normal resolution mode four bits of cempu:
ter memory are used to code each "element of the
picture. A 32 x32 picture requires 512 bytes of
memory. A 64 x 64 picture requires 2K bytes of
memory. The following diagram shows how the
4-bit code works:
11123
"'47
512~527
100'
1536~!551
•1535' 2132"
•
152"
byte picture. The sequence in which memory is
scanned in making a 2K byte picture is shown be-
low:
MS.
LS.
either high intensity or low intensity color. In black-
and-white mode these four bits are instead used to
specify one of l6.levels of grey.
When writing programs for DAZZLER@displays
it is important to remember that the TV picture is
stored as aspecial coded sequence in the computer
memory. The DAZZLER® simply interprets this
code to form aTV picture. Two different codes are
used depending on whether the DAZZLE R® is used
in normal resolution mode or in resolution X 4
mode (as set by the control word sent to output
port 0FHI.
•
I~ED 1GREENI BLU~ l:~'l/:(, I RED "GREEN IBLU~.IHI/LOI
IONE
PICTURE ELEMENT
ADJACENT ELEMENT
Memory Map Of DAZZLER Picture
Fint GVlldr.nt is DiJP/ayed for 5'2·8yle Picwre.
All Four MMlory Ou~rllntJ arll Oispf'Yt!d in 2K- 8'1tll Pictvr •.
/" Normal R~S(}lvtion Mod" O"tI Byt~ of MMlory iJ UJffJ 10
R~prtlJent Two Adjllctnt Eltmenu of tht Pictvrl.
•
In resolution X 4 mode each bit of the memory
is used to either turn on or off asingle element of
the picture. The eight picture elements controlled
by asingle
byte have the following geometric rela-
tionship:
I" ReJolution X4 Modtf On~ 8yt~ of MtmOfY IJ UJffJ to
Represent EtlJhr AdjllC~nt ElementJ of rhe Picturt!.
The 2K byte DAZZLER® picture is stored in
memory as four quadrants. Each
quadrant of the
picture occupies one 512-byte page of memory.
Only
one page of memory is displayed for a512-
TV Connection
Alength of AG174U coaxial cable is provided to
connect the DAZZLER® to your TV. The center
conductor of the cable should be soldered to the
pad labelled "OUT" of Board 1. The shield of the
cable should be soldered to the adjacent foil ground.
The
other end of this cable can be connected to the
input of the video amplifier of the TV, being sure to
terminate the cable in a52-ohm impedance.
If you
prefer to connect to the antenna termi-
nals
of the TV, rather than to the video amplifier
input, an
AF modulator is required. One such modu-
lator
is the Pixieverter Model PXV-2A available for
$8.50 from ATV RESEARCH, 13th and Broadway,
Dakota City, Nebraska, 68731.
If you use aPixie-
verter you
must also use amatching transformer
between
the output of the Pixieverter and the TV
set. Astandard 75 ohm to 300 ohm matching trans-
former, available
at TV supply stores, will provide
the required matching. (Radio
Shack stores carry
such atransformer for
$2.59, model 15-1140).
5

DAZZLER
-_: -- ----- -=-====~= -------. ---~---: .:-:-=- -
----------------------------.;=' - - - - - - - - - ~ ~
Using Two DAZZLERS
In You r Computer
If you wish to control two TV sets simulta-
neously, you can use
two DAZZLERS® in your
computer at the same time. To synchronize the
DAZZLERS®, remove the jumper wire connecting
"SYNC IN" to
"G" on Board 1 of one of the DAZ-
ZLERS®. Now
connect "SYNC OUT" from the
other DAZZLER® to the SYNC IN pad that used to
be connected to "G". The two DAZZLERS® are
synchronized with this connection so
that they
may be operated simultaneously in the same com-
puter.
Test Program
The following program is useful for testing the
operation of the DAZZLER® and is useful for ini-
tial tune-up. To
operate this program you must have
at least 2K bytes of memory beginning at location
zero
in memory. The test program and tune-up
procedure makes use of
the front panel switches
(at
input port F F) of the Cromemco Z-l computer.
This program begins by putting the bit sequence
"10000000" into the accumulator and outputting it
to
port 0EH. This turns on the DAZZLER® and
tells it
that the picture that it is to display begins
at location zero in memory. Next
the program uses
the front panel sense switches to set the control
word sent to output port 0FH. This allows the user
to experiment
with different output formats and ap-
preciate the fantastic versatility of
the DAZZLER®
display.
When sense SWitch A12 is raised the DAZ-
Z
LE R® goes into color mode, and acolorful qu ilt-
like
pattern will appear on the TV screen.
Tune Up
The tune-up procedure for the DAZZLER® is
straightforward. Begin by loading and running the
above test program. Raise SSW A12. Adjust R29 for
a
stable picture on your screen. Now raise SSWs 10,
11, 12, 13, 14. Adjust C17 for
the brightest blue
color
on your screen. Now lower SSW A10 and raise
A9. Adjust R28 for the brightest green. Finally
lower
SSW A9 and raise SSW A8. Adjust R27 for
the brightest red. The tune-up of DAZZLE
R® is
now complete.
ADDR
OBJECT MNEMONICS COMMENTS
OGGG
3E8G
TEST: LD
A,8GH
;10000G0GB TO REG. A
0002
D3GE
OUT
0EH,A
; OUTPUT TO PORT GE
00G4 DBFF IN A,GFFH ; INPUT FROM SENSE SWITCHES
G0G6
D3GF
OUT 0FH,A
; OUTPUT TO PORT 0F
'G0~a0aG
JP
TEST
; REPEAT
6

•

•DAZZLER
---- -;=== -- --
- --
- --------
------ -------
= -=...- ==:::-==- ===-=- ~
Assembly Instructions
DSolder in position the variable capacitor, C17.
Note that the lead on the capacitor marked with
an arrow goes in the hole location farthest from
the XTAL. If the capacitor does not fit easily
into its mounting holes, gently crimp the leads
on the capacitor with apair of needle-nose pliers
before inserting
it
oSolder in place asmall jumper wire, as shown,
between
the pads labeled "IN" and "G" on the
opposite side of the board.
oSolder in position the disc ceramic capacitors
CI8 1180pF); CI9, 20, 21 1560pF); C221.001);
C23,
24 (220pF); C25, 261.001); C27 l56pF).
oWith aheatsink mounted between IC1ILM340T-
5.0 voltage regulator) and the pc board, secure
this IC in position using 6-32 hardware. Solder
the three leads in place.
DSolder
in position capacitors C1·C14 10.1p.F disc
ceramic capacitors).
DSolder
in position filter capacitors C15 and C16
taking care to orient the positive (+) lead of each
capacitor
towards the bottom of the pc board.
DSolder
in place the lN5242 Zener diode (01)
taking care to position the cathode end of the
diode toward the top of the pc board. The cath-
ode end of the diode is marked with aband.
D
Solder in position diode 02 11N914). Take care
to orient the diode so that the cathode (banded)
end is toward the top of the board.
DSolder
in place the inductors L1 and L2. The in·
ductors L1 and L2 are identical.
INDUCTORS
TRANSISTORS m
'-:J
'09
-1;:::::'==' f-
--j l2 f-
E:@
--j +f-
The assembly of the DAZZLERl!l kit requires
about one evening. All components are mounted on
the component side of the pc boards and soldered to
the foil on the opposite side. Be sure to use high-
quality rosin core solder for the assembly and afine-
tipped low wattage soldering iron. le sockets must
be used for all ICs (except for the voltage regulators
ICl and IC381.
-4 t- 1/4 WATT CARBON FILM RESISTORS
To facilitate the assembly of your DAZZLER®
kit, the part number of every component is printed
in position on the component side of each pc board.
The following symbols
are used on the pc board:
I
DSolder in position the Y. watt 5% carbon film re-
sistors R1-R26 (see Resistor Color Codes,
box,
page 9),
Assembly Of DAZZLER Board No. 1oSolder
in position the three 5QO.ohm miniature
potentiometers R27, R28 and R29. These three
potentiometers are identical.
Solder
in position le sockets for ICs 2through
37. Solder a
16 pin IC socket in the position
labeled "TO 80ARO NO. 2."
oSolder in position transistor 01 /2N3906) taking
care
to position the flat face of the transistor
toward the top of the pc board.

DAZZLER
- --- - --- - -- ---
- - -=== ---- - ------
-=--= ======= ===.=..:==
--------------------------= - - -- - - -- - - ~
oSolder in position tn~nsistors 02 and 03 (2N-
3904) taking care to position the flat face of the
transistors toward
the bottom of the pc board.
oSolder in place the 3579.545 KC crystal (XTAL).
The crystal should
be mechanically secured in
place by running asmall piece of bare wire from
the pad
just under the crystal, over the top of
the crystal to the pad just above the crystal. The
wire
should be pulled tight and soldered at each
pad.
oInsert the rcs from envelope No. 1 into their
sockets
on Board 1. Take special care to see that
every
le is properly oriented in its socket and
that each pin
of every IC is properly engaged in
the socket.
Assembly Of DAZZLER Board No. 2
oSolder in position IC sockets for ICs 39 through
74.
Solder a16 pin IC socket in the position
labeled
"TO BOARD NO. 1." Do not solder IC
socket in the position labeled "NO IC."
oWith aheatsink mounted between IC38 (LM-
340T-5.0 voltage regulator) and the pc board,
secure
this IC in position using 6-32 hardware.
Solder
the three leads in place.
oSolder in position capacitors C28-C39 (0.1J,LF
disc ceramics).
oSolder in position the filter capacitors C40 and
C41 taking care to orient the positive (+) lead of
each
capacitor toward the bottom of the pc
board.
oSolder in position capacitor C42, a 330pF disc.
oSolder in position R30 (1 K, %watt) and R31
(270 ohms, %watt).
oSolder in position the seven port selection jump-
er wires.
The jumper wires should connect pad
J1 to J1, J2 to J2, J3 to J3, etc.
oInsert the ICs from envelope No. 2 into their
sockets
on Board 2. Take special care to see that
8
every IC is properly oriented in its socket and •
that each pin
of every IC is properly engaged in ~
the socket.
Interboard Connection
oA 16-conductor cable, with plugs on each end,
is provided to connect Board 1 to Board 2. The
cable should be plugged into the socket labeled
"TO BOARD NO. 2" on the front of Board 1,
be routed over the
top of Board 1down the
front of Board 2and into the socket on Board 2
labeled "TO BOARD NO.
1."
TV Connection
oAlength of RG174/U cable is provided to con-
nect the DAZZLER® to your TV. The center
conductor of the cable should be soldered to the
terminal labeled "OUT" on Board 1(see Note
below). The shield of the cable should be solder-
ed
to the adjacent foil ground. The other end of
this cable can be coupled to the input of the
video amplifier of aTV. If you prefer to connect
to the antenna terminals of the set rather than
to the video amplifier input, an RF modulator is
required. The
most cost-effective modulator that
we know of is the Pixieverter available for $8.50
from ATV Research, 13th and Broadway, Dako-
ta City, Nebraska 68731.
NOTE:
The TV
"OUT" pad is located in the upper right
corner
of Board 1. Do not confuse this with the
SYNC output near the center of the board.
oBefore using your DAZZLER®, carefully in-
spect your work. The notch on every IC should
be
on the left (with pin 1 of each IC toward the
lower left). Be sure that all components are in
the proper positions and properly oriented. Also
check to be sure that you have installed the
small jumper wire shown near the top of Board
1.
For instructions on tuning up your DAZ-
ZLE
R® refer to page 6 of this manual.

Resistor Color Codes
DAZZLER
----- -~----
~= ==-=-=-:---
------------------------.......;= - - - - - - - - - - ~
•10
39
150
220
270
330
470
820
1K
1.5K
7.5K
9.1K
10K
15K
18K
30K
36K
62K
BROWN - BLACK -BLACK -GOLD
ORANGE -WHITE -
BLACK -GOLD
BROWN -GREEN -BROWN -GOLD
RED -RED -BROWN -
GOLD
RED - VIOLET - BROWN -GOLD
ORANGE-ORANGE-BROWN-GOLD
YELLOW - VIOLET -BROWN -GOLD
GREY -
RED - BROWN -GOLD
BROWN -
BLACK - RED -GOLD
BROWN -GREEN -
RED -GOLD
VIOLET -GREEN - RED -GOLD
WHITE -BROWN -
RED -GOLD
BROWN -
BLACK -ORANGE -GOLD
BROWN -GREEN -ORANGE -GOLD
BROWN -GREY -ORANGE -GOLD
ORANGE -
BLACK -ORANGE -GOLD
ORANGE -BLUE -ORANGE -GOLD
BLUE -
RED -ORANGE -GOLD
9

DAZZLER. = -==--- =-----
.
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FoilDiagram Board No. 2

• SChematicDiagrarn Board No. 2
•
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~ COPYRIGttT 1976 IV CROMEiIlCO
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13

DAZZLER _ :~- __ =---=====
--------------------_.......:; = --:...- == =-:.:. == =-=- ~
Parts List
BOARD 1BOARD 2
Integrated Circuits
Part No.
Integrated Circuits
Part No.
I
ICl
7805 012-0001 IC38 7805 012-0001
IC2 7410 010-0026 IC39 7402 010-0031
IC3 7473 010-0020 IC40 7408 010-0027
IC4 7432 010-0033 IC41 7404 010-0030
IC5 7430 010-0023 IC42' 74LS10 010-0063
IC6 7474 010-0019 IC43-44 7474 010-0019
IC7 74LS04 010-0066 IC45 74LS30 010-0059
IC8 7408 010-0027 IC46 74157 010-0009
IC9 7400 010-0000 IC47 74175 010-0006
IC10 7473 010-0020 IC48 74LS08 010-0064 ,
ICll-12 7493 010-0016 IC49 7404 010-0030
IC13 74157 010-0009 IC50-51 7493 010-0016
IC14-15 7400 010-0000 IC52 7408 010-0027
IC16-18 7410 010-0026 IC53 7493 010-0016
IC19 7404 010-0030 IC54 7475 010-0018
IC20 7420 010-0025 IC55 74175 010-0006
,IC21 7432 010-0033 IC56 74LS32 010-0058
Iq2 7408 010-0027 IC57 7495 010-0015
IC23 7474 010-0019 IC58-59 74LS04 010-0066
IC24 3417 011-0007 IC60 7483 010-0017
IC25 7408 010-0027 IC61 7475 010-0018
IC26 74151 010-0010 IC62 7483 010-0017
IC27 74157 010-0009 IC63 7475 010-0018
IC28 74175 010-0006 IC64 74LS04 010-0066
IC29
7400-
010-0000 IC65-66 7405 010-0039
IC30 7420 010-0025 IC67-70 74367 010-0080
•010-0066
IC31 7473 010-0026 IC71-72 74LS04
IC32-33 74161 010-0008 IC73 7405 010-0039 ,
IC34 74157 010-0009 IC74 7474 010-0019 ,
IC35 74175 010-0006
IC36 7404 010-0030
IC37 74LS75 010-0054
,
14

•
O'''ZZLER
~-- - --- - --
n ~=--=-= - -
--------------~~= -=...-===-= ===~=
Parts List
Resistors Part No. Capaciton Part No.
R1 270
001-0011
Cl-14
_l~F DISC
004-0030
R2 150 001-0008 C15-16
10~F150V 004-0031
R3-4 1K 001-0018 C17 7-25pF VAR. 004-0033
R5
9_1K
001-0029 C18 180pF 004-0012
R6 36K
001-0036 C19-21 560pF 004-0018
R7 18K
001-0032 C22
_001~F 004-0022
R8
7_5K
001-0028 C23-24 220pF 004-0013
R9
15K ,001-0031 C25-26
_001~F
004-0022
Rl0 62K
001-0038 C27
56pF 004-0006
R11
30K
001-0034 C28-39
_1~F DISC 004-0030
R12
10K 001-0030 C40-41
10~F/50V
004-0031
R13 15K 001-0031 C42 330pF 004-0035
R14-16
10K 001-0030
R17
15K 001-0031 Inductors Part
"No.
R18 820
001-0017
R19 1.5K 001-0020 L1-L2
22~H
007-0000
R20
330
001-0012
R21 220
001-0010 Transistors Part No.
R22 39 001-0002
01 2N3906 009-0002
R23 10 ,001-0000
02-03
2N3904 009-0001
R24
330
,001-0012
R25
470 001-0014 Diodes Part No.
R26
330
001-0012
R27-29
500 POT 002-0002
Dl lN5242
008-0005
R30
lK 001-0018 D2
lN914
008-0002
R31 270 001-0011 Miscellaneous Part No.
CRYSTAL 3_579 MHz 026-0000
50 -SOCKETS,
14 PIN
017-0001
25 -SOCKETS, 16 PIN 017-0002
RIBBON CA8LE 019-0004
1
FT_ RG 174/U 019-0005
2-
6x32 SCREWS
015-0000
2-
6x32 NUTS 015-0013
2-HEATSINKS 021-0016
DAZZLER'" PC 80ARD #1 020-0005
,
DAZZLER'" PC 80ARD #2
,020-0006
I
DAZZLERIS> INSTRUCTION 023-0003
I
MANUAL
--
15

warranty
Vour factory-built DAZZLER® is warranted
against defects in materials and workmanship for a
period of 90 days from the date of delivery. We will
repair or replace products that prove to be defective
during the warranty period provided that they are
returned to Cromemco. No other warranty is ex-
pressed or implied. We are not liable for consequen·
tial damages.
Should your factory-built DAZZLER® fail after
the warranty period, it will be repaired, provided
that it is returned to Cromemco, for afixed service
fee. We reserve the right to refuse to repair any pro·
duct that in our opinion has been subject to abnor-
mal electrical or mechanical abuse. The service fee is
currently $70 and is subject to change without
notice.
Your assembled DAZZLER® kit will be repair-
ed, provided
that it is returned to Cromemco, for a
fixed service fee.
We reserve the right to refuse re-
pair of any kit that in our opinion has not been
assembled in a workmanlike manner or has been
subject to abnormal electrical or mechanical abuse.
Payment of the service fee must accompany the re-
turned merchandise. The service fee is currently
$70 and is subject to change without notice.
16