Heathkit ETA 3400 Manual 2

Page 1

for the

MEMORY l/O
ACCESSORY
Model ETA-3400

ASSEMBLY 595217003

HEATH COMPANY ° BENTON HARBOR, MICHIGAN

Page 2

HEATH COMPANV PHONE DIRECTORY
The (allowing helephone numbers are dlrecl lines to me departments listed:

Kit orders and delivery Iniormaiion . (616! 9924411
016d" ........................ (616i 982-8561
Replacement Parts .................................... (616] 982-3571
Technical Assurance Phone Numbers
8:00 AM. to 12 AM. and 1:00 AM. to 4:30 P.M EST, Weekdays Only

H/ C, Audio. and Electronic Organs. . (616) 9824310
Amateur Radio .................. (618) 982.3296
Test Ewlpmenl, Wedlhev Instrumenm and

Home Clocks (616) 98244315
Televlslon . . . (616) 982-3307
Alrerall, Marine. Seouiiiy, Scanners. Automotive.

Appliances and General Products . . . . . .t .r (616) 982-3496
Computer Hardware . (618) 982-3309
Computer Sdlwere . (516) 992-8860
Ham CIIII Wood Walks (516} 245423

IIIIIlIIHHHHHHIHHIIINIIIIIIIHIIIIHNHHHW

YOUR HEATHKIT 90-DAY LIMITED WARRANTY

El

Consumer Protection Plan for Healhklt Consumer Products

Welcome to the Heath iamity We belleve you wtlI enlay assembling your kill and will be pleased wim its
parlor-name Please read Ibis Conwmer Protecllon Plan oarelutly. It is a "LIMITED WARRANTY" as
dellned in me u 5. Consumer Product Warramy and Federal Trade Commlsslon Improvement All This
warremy gives you specific legal liglls and you may also have other righls wriloh very Irorn sine to rlale

Haathl Responsibllity

PARTS - Replacernertle lcr lenory deleotrve pane wiII oe supplled Nee lor 90 days lrorri date oi purchase. Replacement pens are
warranled lorlrie remaining pom otlhe original warranty period. Vou can om ii warranty pans direa from Henri oonuany by willing
or leleplioriiiig us al (616) sea-em. And we will pay slitpping charges to get tiioee pens to you . . . anywhere in the world
sENVICEuaDN - Foreperiod oi 90daysfmmlrledaie alpuichase. any mallunction caused oydeleaive ports or error indeeign will
be corrected at no chargetoyou Vou must deiyerthe uii'ii at your almanac to the Healhtectary. arty Realm Electronic oenier tuniinot
Veritecmotogy Etectrorilcs Corporation), or any of our aulhnriled overseas distrioutors.

TEcNNICAL consuLTATIm - You wlll reoervelree consuilaliori on any problem you might encounter in the assembly or useolyoui
Heamkit product Jus1 drop Us a line or give us a tall Sorry. we cannor oocepl oolloet calls.

NOT COVERED - The oonecuon ol assembly errors, Mluslmems. calihvallon and damage due Io misuse. abuse, or negligence are
not covered by the wananiy. Usedeoncewe solder and/or are uneuthorlzed modificalloii oltrie piodumanfi anyfumished oerriponenl
will irotd Ihls warranty lrl n: entlrory. This warrenly does um include retnibuisemerit lorinconyenrance. toss otuse. cueuomer essenlzlyi
oer-up lime. or unauthorized service.

Thlswnrrnntyeovus onIyNealh products endia not extended to other equipmenlorcornponenta Ihmacuetomeruses In wntundion wIIh
our products

SUCH REPAIR AND REPLACEMENT SHALL BE THE SOLE REMEDV OF THE CUSTOMER AND THERE SHALL SE NO LIABILITV
0N TREPART or HEATH FOR ANY SPECIAL. INDIRECT. INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT
LIMITED To ANY Loss OF BUSINESS OR PROFITS. WHETHER OR NOT FORSEEABLE

Some smes do not allow the exclusion or Iirriitaiion or incidental or eoneeaue damages so the slime limitation or exclueton may run
apply (0 you,

Owner's Responslblllty

EFFECTIVE WARRANTY DAYE - Warranty begins on me dale ml (-52 cmsumer purchase You must supply a may of your prom ct
purchase when you request warranty aemoe or parts.
ASSEuaLv - Below seetring warramy service. you should ouniplete Ilia assembly by carelully lctlowing the manual instriretloris.
Heimkil wvlce lgsflclas cannul complele assembly and mpslmenu that ale cunemevs responsibiiiy.
ACCESSDRV EQUINE!" - Pavlolmance malunuims mvoMng miter nun-Helm accessory equipment. (lnlel'lnss, audio compo
nsmsv computer peripherals and software. etc.) are not covered by Ihis warranty and are rite owners responsibility
SHIPPING UMTS -- Followme packing instructions published in Ihe assembly manuals. Damage due lo madman packing cannm be
repelled under wrnenly.

It you are mentioned Wllh our service (warreniy or otherwise) orour products write directly lo our Directorol

Customer Sonnet Mealh Cowanyl aenlon Melba MI 49022. He wlll metre eon-in your problems looa'we
ininiedIare, person-I ausmimr

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lulltnmmmnmmmllmn

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-I-IE;KTHKIT

m-

{ )Cut a 9" length of the green
through gray 4»wirs cable.

The steps performed in this Pictorial are
in this area of the circuit board.

PART
NUMBER \ /

/&

ID ENTIFICATION
DRAWING

( ] Refer toDetail 1-15A (Illustration
Booklet, Page 2) and prepare the
ends of the green through grey
cable.

Cunnect the 1/4" ends of the prepared
4-wire cable to the circuit board in the
following stepsi

( ) Gray wire to hole -TTY/RS~232
OUT.

[ ) Violet wire to hole «THURS-232
OUT.

[ ] Blue wire to hole GND.

[ ) Green wire to hole 115-232 IN.

( ] Solder the wires to the circuit
board foil and cut off the excess
wire lengths,

Set the circuit board aside and proceed
to Cabinet Assembly and Wiring."

PICTORIAL 1-15

Page 25

Page 29

Page 27

NOTE: To prepare a wire, as in the following step, cut
it to the indicated length and remove 1/4 of insula~
tion from each end. If not already done, tightly twist
each wire end and apply a small amount of solder to
hold the fine strands together.

( ] lfit has not already been done, cutback 2-1/2" of
the outer insulation on the three-wire end of the
line cord. Cut an additional 1 from the ends of
the black and the green line cord wires. Prepare
the wire ends.

[ ) Pass the 3 end of the line cord through hole L;
then refer to Detail 2-2C and attach the strain
relief and line cord to the cabinet bottom.

l. INSERT THE PREPARED END OF THE LINE CORD
THROUGH THE SHOULDER ON THE STRAIN RELIEF
AND BACK THROUGH THE LOWER HOLE.

SHOULDER

2. ROUTE THE PREPARED END OF THE LINE CORD
BACK THROUGH THE SIDE HOLE IN THE STRAIN
RELIEF AND PULL IT TIGHT.

#6 x5/8
SELF TAPPING

@ SCREW

3. FASTEN THE STRAIN RELIEF TO THE CABINET
WITH A #6 x 5/8" SELF-TAPPING SCREW.

Detail 2-2C

Refer to Pictorial 2-3 (Illustration Booklet, Page 3) for
the following steps.

( ) Prepare a 2" large black wire.

( J Remove an additional 1/4 of insulation (1/2"
total] from one end of the 2 black wire.

Refer to Detail 2-3A for the next two steps.

( ) Connect the 1/2 end of the 2 black wire to
screw terminal 3 of the AC power socket M as
shown in the inset drawing. Tighten the screw
securely.

( ) Guide the 2" black wire and AC power socket
into hole M. Be sure the screw terminal is facing
down as shown; then push the socket until it
snaps into place.

..»/\Ac POWER
\ __ SOCKET

INSET BLACK

WIRE

Detail 2-3A

( ] SW1: Refer to Detail 2-3B and position the
rocker switch so the ON lettering appears as
shown. Guide the switch into hole SW1; then
push the switch until it snaps into place.

3 flea

ROCKER
SWITCH

Detail 2-3B

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Page 42

_HE.THKIT

Refer to Pictorial 5-2 and install the [Cs as follows:
( ) U104: 7404N (#443-18].

[ ) U107: 7402N (#44346).

[ ) U103: 748188N (#444-25).

NOTE: Some of the integrated circuits that you will
install in the following steps are MOS devices that
can be damaged by static electricity. Install each of
these integrated circuits (identified as MOS" in the
step) without interruption as follows:

1. Remove the IC mounted in conductive foam
from its envelope.

2. Hold the IC in one hand and pull the con-
ductive foam pad from the pins. (Save this
foam in case you ever remove the IC.]

3. Touch the circuit board while you hold the
IC.

4. Carefully insert the IC in its socket before
you release the the circuit board with your
other hand. The IC is now protected by the
circuit board socket and foil.

( ) U117: (MOS) 2114, 6614P, or S4045 (#443-
764).

( ) U118: (MOS) 2114, 6614P, or S4045 (#443-
764).

( ) Temporarily, place the Accessory cabinet top
on the cabinet bottom, but do not install any
screws. Then set the Microprocessor Trainer on
top of the Accessory.

[ ] Connect the other end of the 40-conductorcable
to the Microprocessor Trainer. Make sure the
cable is not twisted.

( ] Connect the phono plug with the heat-
shrinkable tubing to the TAPE INPUT phono
jack.

( ] Connect the remaining phono plug to the TAPE
OUTPUT phono jack.

[ ) Plug the Trainer line cord into the ETA»3400
Accessory AC socket. Then plug the Accessory
line cord into a wall outlet.

( ) Set the POWER switch on both units to ON.

( ] Press the RESET button on the TRAINER. The
display should indicate CPU UP. This shows
that the system has successfully communicated
with the new RAM (U117 and U118).

( ) Unplug the line cord of the ETA-3400 Acces-
sory from the wall outlet.

[ ) U105,(MOS)terminalmonitorROM(#444-51).
[ ) Plug in the Accessory line cord.

( ] Press the RESET button on the Trainer. Again,
the display should be CPU UP.

NOTE: In the following chart, you will examine the
data at each address listed. These are the terminal
monitor ROM locations. For each one, press the
RESET button, then the EXAM button and theaddress
number. The Trainer should display the address
number in the first four digits, and the information
under Data" inthe last two digits. The last column in
the chart is supplementary information that tells you
which address bits are being tested.

Address Data Address Bit(s} Tested
[ ) 1400 OF ALL
[ ) 1401 CE A1
( l 1402 10 A2
( ] 1404 SF A3
( ] 1408 86 A4
( ] 1410 C6 A5
( ) 1420 26 A6
[ ] 1440 33 A7
[ ) 1480 4C A8
I ] 1500 27 A9
I ] 1500 26 A10
( ] 1800 4A A11

Page 54

SEMICONDUCTOR IDENTIFICATION CHARTS

This section is divided into three parts: Component
Number Index, Part Number Index, and ROM and
FLA Programs. The first section provides a cross-
reference between semiconductor component num-
bers and their respective Part Numbers. The compo-
nent numbers are listed in numerical order, The sec-

ond section provides a lead configuration detail (bas-
ing diagram) for each semiconductor Part Number.
The Part Numbers in the second section are also listed
in numerical order. The third section provides a pro-
gram for the specially programmed" integrated cir-
cuit decoder.

Component Number Index

This index shows the Part number of each semicon~

ductor in the Terminal.

DIODES
cmcurr HEATH
COMPONENT um
NuuaEn HUI-ER
0101-0104 57-65
D105-D106 57-42
010743109 55-56
TRANSISTORS
cincurr HEATH
COMPONENT PART
NuueEn NUMBER
0101 417-874
0102-0105 417-875

INTEGRATED CIRCUITS
CIRCUIT H EATH
COMPONENT PART
NUMBER NUMBER
U101 442-664
U1 02 442-663
U103 43-843
U104 443-1 8
U1 05 444-51
U1 06 444-24
U107 443-46
U 106 444-28
U 109 442-616
m 10 442.54
U117-U1 18 443-764

Page 68

|
AC POWER
SOCKET

TOROID
C0

.001; mm

PICTORIAL 2-4

Page 3