Vector Graphic Mindless User manual

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Vector Graphic Mindless Terminal Users Manual
REPAIR AGREEMENT
The Mindless Terminal sold hereunder is sold "as is", with all faults and
without any warranty, either expressed or implied, including any implied
warranty of fitness for intended use or merchantability. However, the above
notwithstanding, VECTOR GRAPHIC, INC., will, for a period of ninety (90)
days following delivery to customer, repair or replace any Mindless Terminal
that is found to contain defects in materials or workmanship, provided:
1. Such defect in material or workmanship existed at the time the
Mindless Terminal left the VECTOR GRAPHIC, INC., factory;
2. VECTOR GRAPHIC, INC., is given notice of the precise defect
claimed within ten (10) days after its discovery;
3. The Mindless Terminal is promptly returned to VECTOR GRAPHIC,
INC., at customer's expense, for examination by VECTOR GRAPHIC, INC., to
confirm the alleged defect, and for subsequent repair or replacement if
found to be in order.
Repair, replacement or correction of any defects in material or workmanship
which are discovered after expiration of the period set forth above will be
performed by VECTOR GRAPHIC, INC., at Buyer's expense, provided the Mindless
Terminal is returned, also at Buyer's expense, to VECTOR GRAPHIC, INC., for
such repair, replacement or correction. In performing any repair,
replacement or correction after expiration of the period set forth above,
Buyer will be charged in addition to the cost of parts the then-current
VECTOR GRAPHIC, INC., repair rate. At the present time the applicable rate
is $35.00 for the first hour, and $18.00 per hour for every hour of work
required thereafter. Prior to commencing any repair, replacement or
correction of defects in material or workmanship discovered after expiration
of the period for no-cost-to-Buyer repairs, VECTOR GRAPHIC, INC., will
submit to Buyer a written estimate of the expected charges, and VECTOR
GRAPHIC, INC., will not commence repair until such time as the written
estimate of charges has been returned by Buyer to VECTOR GRAPHIC, INC.,
signed by duly authorized representative authorizing VECTOR GRAPHIC, INC.,
to commence with the repair work involved. VECTOR GRAPHIC, INC., shall have
no obligation to repair, replace or correct any Mindless Terminal until the
written estimate has been returned with approval to proceed, and VECTOR
GRAPHIC, INC., may at its option also require prepayment of the estimated
repair charges prior to commencing work.
Repair Agreement void if the enclosed card is not returned to VECTOR
GRAPHIC,
INC. within ten (10) days of end consumer purchase.
Rev" a-B 3/30/79

Vector Graphic Mindless Terminal Users Manual
TABLE OF CONTENTS
Section
Repair Agreement
Table of Contents
I. Introduction
Specifications ••••••••••••••••••• o •••••••••••••••••••••••••••• 1-1
Description of the Mindless Terminal •••••••••••••••••••••••••• 1-2
Description of the Manual ••••••••••••••••••••••••••••••••••••• 1-2
II. Users Guide
2.1
2.2
2.3
2.4
2.5
Keyboard Controls ••• e •••••••••••• ~ •••••• ft ••••••••••••••••••••• 2-1
Installation •••••••••••• e •••• m •••••••••••••••••••••••• •••••••• 2~2
Cables lit •••••••••••• ,. ••• «:I ........................ ••• 2-6
Keyboard Code Conversion •••••••••••••••••••••••••••••••••••••• 2-8
Adjusting Procedure for the CRT •••••••••••••••••••••••• 2-9 - 2-12
III. Schematics
ASCII Code Chart ••••••••••••••••• o •••••••••••••••••••••••••••• 3-1
Interface Board in Mindless Terminal Schematic •••••••••••••••• 3-2
Monitor Schematic ••••••••••••••••• ~ •••••••••••••••••••• o •••••• 3-3
Monitor Parts List and Components Layout •••••••••••••••••••••• 3-4
Keyboard Schematic •••••••••••••••••••••
ft
•••••••••••••••••••••• 3-5
Keyboard Mechanical Assembly and Key top Layout •••••••••••••••• 3-6
Keyboard Code Chart •••••••••••••••••• ea •• 8 •••••••••••••••••••• 3-7
IV. Addenda
Schematics for Zenith Monitors
Schematics for
CITOH Monitors
Rev. o-a
3/30/79

Vector Graphic Mindless Terminal Users Manual
I. INTRODUCTION
1 .1 SPECIFICATIONS
SCreen Size
Resolution
Bandwidth
Video Interface
Compatibility of Video
Keyboard
Keyboard Electronics
External Controls
Internal Controls
Power
Power Source
Cables
Rev. a-a 3/30/79
12-inch diagonal CRT
900 lines at center
750 lines at borders
12 MHz
Separate TTL video and sync
Compatible with Vector Graphic Flashwriters
I and II alphanumeric video display
boards and most other alphanumeric
video display boards
Not compatible with Vector Graphic
High Resolution Graphics board
Custom 60 keys, typewri t~r format, 12-key
numeric pad, ESC, DEL, ALL CAPS
CTRL, LF, and cursor movement keys
Capacitance key switches and LSI N-channel
MOS encoding electronics
Contrast
Vertical hold
Height
Vertical linearity
Vertical centering
Focus
Brightness
Horizontal centering
+16V @ 1.15A
+8V @ 0.25A
+16V and +8V from mainframe power supply
Purchased separately: cable to connect
terminal to mainframe and to
connect inside of mainframe to
power, to keyboard port, and to
video board
1-1

Vector Graphic Mindless Terminal Users Manual
1 .2 DESCRIPTION OF THE MINDLESS TERMINAL
The Vector Graphic Mindless Terminal is a high quality terminal that,
particularly when used with Vector Graphic video display boards, provides
the user with features and versatility not available in other terminals.
The CRT monitor has up to 900 lines resolution and 12 MHZ bandwidth. All
elements of the display are adjustable and adjustment procedures may be
found later in this manual.
The keyboard is a high reliability unit with capacitive type switches. A
numeric keypad and lighted shift lock and ALL CAPS lock keys are standard.
The Mindless Terminal
computer power supply.
these connections quite
is designed to receive power (+8V and +16V) from the
cables are available (ordered separately) which make
simple to implement.
The Mindless Terminal requires that the video information be provided at TTL
levels as separate video, horizontal sync and vertical sync. This is
provided by Vector Graphic alphanumeric video boards.
1.3 DESCRIPTION OF THBMANUAL
This manual provides a complete Users Guide for the Mindless Terminal,
including detailed explanations of all the external and internal adjustments
possible, and how to connect the terminal to your computer. Complete
schematics as well as ASCII and keyboard code charts are included.
1-2
Rev. O-B 3/30/79

Vector Graphic Mindless Terminal Users Manual
II. USERS GUIDE
2.1 XX'l'ERNAL CONTROLS
Operation of the Mindless Terminal is very straightforward.
the Mindless Terminal is provided by the computer power supply
switched on and off by the computer power switch.
The power to
and is thus
The only external control is the contrast control located on the rear panel
of the Mindless Terminal. This should be adjusted to suit personal
preference and ambient light level.
For other adjustments see section on CRT monitor adjustments later in this
manual.
Rev. O-B 3/30/79
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Vector Graphic Mindless Terminal Users Manual
2.2 INSTALLATION
In addition to the Mindless Terminal, you must order separately the VMTC
cable set, which includes:
1. A 4-foot 25-conductor flat ribbon cable used to interconnect the
Mindless Terminal to the computer interface.
2. A signal/power cable assembly, used inside the mainframe chassis, to
connect the terminal to power supply and also provide the video
signals and receive the keyboard signals.
COMPUTER
25 CONDUCTOR
FLAT CABLE
TERMINAL
FIGURE 1
The fbllowing procedure describes how to connect the Mindless Terminal to
Vector Graphic systems (such as the Vector MZ) utilizing a Vector Graphic
Flashwriter Video Board and the above mentioned VMTC cable. Wire lists are
provided for the user to fabricate custom cables for connection to
non-standard devices. Please note that due to the large variations in
manufacturer's products, it is impossible for Vector Graphic to provide
interface cables for anything other than Vector Graphic products.
2-2
Rev. O-B 3/30/79

Vecto:= Grc.ohic Mir_dle!:s Termir3.1 Users Man-.ral
VIDEO
CONNECTOR
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FIGD'?"E 2
NTERFACE
ONNECTOR
KEYBOARD
CONNECTIONS
1. Before preceding, ::amiliarize yoursel:: wi::.h the c-:'1TC cables and thi '3
manual.
Note :.hat the internal cabl,,;; is divide,j into four parts: video
cQnne~tor; keybo~rd connector; Fower sup?ly connections; and interface
Connec-:.or.
2. rl<Junt the DB-25S Interfa.ce Connect'Jr in a con'lienent cutout on t1::.e
computer chasis ba::kpa:1el LlSin~ the hardware s1..:.pplied.
3. C)nnect "he ?ower terminal lug mar~~ed .:..8V to t::e +sv terminal on the
L:.rge filter capacitor (se? Fi~ure 3). Verify all of ':one other ter-nin.::.l
lugs ere in place and tigt~enei se::ure~y.
4. In a ::'ike"ise :!1.anr.er conne:::t t:1e t?rmi~al lugs ma~.,<ed + 16V and G'm to
t::eir ::oes::- ecti'.re c)nne:::tic 1 p::ints as .3how'":"l in Fig'.:.re:.
R3V .. J-B 3/3:=/79
2-3

Vector Graphic Mindless Terminal Users Manual
+8 Terminal
~ 8 VDC Filter Capacitor
--hJ'6 VDC Fi Iter Capacitor
8--16 VDC Filter Capacitor (Ref. only)
FIGURE 3
WARNING·- It
correctly.
damage.
is very important that the power connections are made
Failure to provide correct power may result in equipment
5. Install the video board in a motherboard slot near the rear of the
computer chassis to permit the video and keyboard cables to be connected
to it conveniently.
6. Plug in the 24 pin DIP plug connector into the keyboard connector socket
on the video board. Note correct pin orientation as shown in Figure 4 •
••••••••••••
Notch
••••••••••••
pin
FIGURE 4
24 pin
Dip PI ug ",
" .. ,,:>-
7. Connect video connector (MOLEX 6 PIN PLUG) to video output connector on
video board. See figure 5.
2-4
Rev. O-B 3/30/79

Vector GraEhic Mindless Terminal Users Manual
~ ----,mooth surface
LJ----- to the front
pin pin 6
video board
FIGURE 5
8. Check all connections; verify all boards are plugged into the
motherboard. Connect the 25-conductor flat cable between the Mindless
Terminal and the interface connector on the mainframe as shown in Figure
1. This completes the hardware connection of the Mindless Terminal.
Rev. O-B 3/30/79
2-5

Vector Graphic Mindless Terminal Users Manual
2.3 CABLES
The following information is provided to help users connect the Mindless
Terminal in non-standard situations. The "Interface Board" refers to the
small PC board at the rear and inside the Mindless Terminal.
INTERCONNECT CABLE -CRT MONI'l'OR I INTERFACE BOARD
MONITOR INTERFACE BOARD
10 PIN EDGE 16 PIN DIP
SIGNAL
1
15,
16 HORZ GND
5 12, 13,
14
GND
66H SYNC
7 1,
2, 3,
4 +12 VDC
87VIDEO
95V
SYNC
10
9, 10, 11 VIDEO GND
INTERCONNECT CABLE - :K:EY'BOARD I INTERFACE BOARD
INTERFACE BOARD
KEYBOARD
16 PIN DIP
DUAL TEN PIN EDGE SIGNAL
1C GND
2 C GND
35 DATA 8
46
DATA 7
51
DATA 4
64 DATA 1
7
N/C
PRESET
82 DATA 3
910
-V REG
10
E
STROBE
11 D
GND
12
7 DATA
6
13
3
DATA
2
14
8
DATA 5
15
9vee
16
9vee
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Vector Graphic Mindless Terminal Users Manual
6 ___
6 PIN MOLEX PLU'
INTERFACE
CONNECTOR
:INTERNAL PORTION OF VMTC
WIRE
FROM TO GUAGE
SIGNAL
J2-2 J1-14 22 VIDEO
GROUND
-3 -IS TTL VIDEO
-4 -16
TTL HSYNC
-5 -17
TTL VSYNC
J3-7 J1-20 22
KYBD DATA 1
-8 -21
DA':'A 3
-9 -22
-V REG
-11 -24
PRESET
-12 -25 STROBE
-13 -12
GND
-14 -11 DATA 4
-15 -10
DATA
6
-16
-9
DATA 7
-17
-8
DATA 2
-19 -6 DATA 8
-20
-5 DATA 5
+8V J1-1
18 POWER +8V VDC UNREG
+16
-18
+16 VDC
UNR.EG
+16
-19
+16
VDC UNREG
GND
-2
GROUND
~D -3
GROUND
Rev. 0-13 3/30/79
2-7

Vector Graphic Mindless Terminal Users Manual
2.4 KEYBOARD CODE CONVERSION
Due to limitations in the keyboard encoder chip, it was not possible to
provide several codes, in particular, those for the following characters:
( (SB)
] (SD)
\ (SC)
(7E)
The conversion can be done in software, as the [] key generates unique codes
for the four modes: unshifted, shifted, control, control shift. This
conversion is done in the Version 3 Monitor PROM (purchased separately from
Vector Graphic), which is the companion PROM for this keyboard. Furthermore
this PROM version accepts the codes generated by the cursor control keys.
Order Monitor 3 EV for the 64 X16 Flashwriter I video board, and Monitor 3
EV-II for the 80 X 24 Flashwriter II video board.
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Vector Graphic Mindless Terminal Users Manual
2.5 ADJUSTING PROCEDURE FOR CRT MONITOR
Normally, no adjustment of the CRT screen should be required as it is
adjusted at the factory. However, if adjustment is required for any
reason, the following explanation of the functions of the various
adjustments is provided. All the adjustments except the last two must
be made inside the Mindless Terminal, requiring you to unscrew and
remove the shell.
It is assumed that the terminal is connected properly to the computer.
A display which can be used to check adjustment is obtained by
depressing RESET on the mainframe front panel to call up the Monitor
Executive, then, for the Flashwriter I board, by typing Z 0400 07FF 06,
or for the Flashwriter II video board by typing Z 0000 07FF 38.
1. If the deflection yoke is not firmly against the bell of the tube,
shadows will be caused at the corners of the display as shown below. If
the yoke is slightly twisted, the display will also be twisted.
RASTER RASTeR
Adjustment for this is made by first loosening the clamp screw holding
the yoke and positioning it properly. CAUTION: 00 NOT TOUCH ANY OF THE
ELECTRICAL TERMINALS ON THE TUBE OR YOKE, AS HIGH VOLTAGES ARE PRESENT.
Tighten the clamp gently when finished.
CENTERING
MAGNET---
Rev. O-B 3/30/79
l
--CENTERI NG MAGNET
n2!t't------- CLAMP _SCREW
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Vector Graphic Mindless Terminal Users Manual
2. If the width of the display is improper, adjust the core of the width
coil (L103) on the P.C. board.
r·f---------~-.,
II
I DATA I
L. _J
3. When data linearity in the horizontal direction is not good:
Wl \>J2 IfJ3
II""1r 1,
WA lA'
A
DATA
Turn the core of the horizontal linearity coil (L102) so that W
1
=W
2
=w
3•
4. When data runs in the vertical direction:
r==
t
+
!
tiATA
Turn the V. HOLD pot with a screwdriver and stop data display.
5. When the vertical size (height) of data is not proper:
2-10
II
~CRT
Rev. O-B
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Vector Graphic Mindless Terminal Users Manual
Turn the HEIGHT pot (R110) with a screwdriver to adjust the height as
required.
6. wnen vertical linearity of data is not good:
jilL-DATA
,-
Hzl!-- - DA~A.
~-- ,
rlj F= CO_-·-:,b,.
Turn the V. LIN pot with a screwdriver so that H1 =H
2
=H
3•
RASTER
7. Raster deviation:
rt=-~ -l·7
I
I\
L-------J
Turn the two centering magnets so that. the raster is centered in the
vertical direction.
8. When data is not focused satisfactorily, turn the FOCUS pot (R122) with
a screwdriver so that focusing of the entire picture is optimum.
9. The correct adjustment of the brightness potentiometer R117 is when the
backgrou~d raster is just barely extinguished (black). If you can see
faint lines zig-zaggi~g across the screen in the background, turn the
brightness dO'Nn.
10.
The contrast pot on the rear of the chassis should then be
minimum consistent with good legibility of the display.
depend on the ambient light level and personal preference.
set to the
This will
Rev. O-B 3/30/79
2-11

Vector Graphic Mindless Termina1 Users Manua1
11. The horizontal positioning is controlled by both the video CENT (A103)
control and also the position control on the upper left hand corner of
the Flashwriter board. The latter is the preferred adjustment.
2-12