Vector Graphic Mainframe User manual

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U')iE=I.). IiIllnUAL
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MAINFRAME
USERS MANUAL
Revision A
July 1, 1978
Copyright 1978 Vector Graphic Inc.

Copyright 1978 by Vector Graphic Inc.
All rights reserved.
Disclaimer
Vector Graphic makes no representations or warranties with respect to the
contents of this manual itself, even if the product it describes is covered
by a warranty or repair agreement. Further, Vector Graphic reserves the
right to revise this pUblication and to make changes from time to time in
the content hereof without obligation of Vector Graphic to notify any person
of such revision or changes, except when an agreement to the contrary
exists.
Revision Numbers
The revision letter such as A or Bchanges if the manual has been improved
but the product itself has not been significantly modified. When the
product itself is modified significantly, the product will get anew
revision number, as shown on the manual's title page, and the manual will
revert to revision A, as if it were treating a brand new product. THIS
MANUAL SHOULD ONLY BE USED WITH THE PRODUCT(S) IDENTIFIED ON THE TITLE
PAGE.

VECTOR GRAPHIC MAINFRAME
TABLE OF CONTENTS
REPAIR AGREEMENT
PARTS LIST
POWER SUPPLY CHECKOUT
MINI-FLOPPY POWER SUPPLY PRINTED
CIRCUIT BOARD DIAGRAM
POWER SUPPLY WIRING DIAGRAM
MECHANICAL ASSEMBLY
MAINFRAME WIRING DIAGRAM
i
1
4
6
7
8
9

REPAIR AGREEMENT
The Mainframe sold hereunder is sold "as is'l, 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 Mainframe that is found to contain defects in materials or
workmanship, provided:
1. Such defect in mat~rial or workmanship existed at the time
the ~~inframe 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 Mainframe 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 Mainframe 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 GP~PHIC, 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 Mainframe 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.
i

VECTOR GRAPHIC Jl-1AINFRAHE
DESCRIPI'ION
MAINFRA."1E PARTS LIST
Page 1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
2
12
6
4
12
24
1
1
2
12
CABINET l3CfI'I'CM
CABINET 'IDP WI 14 jf8-32X1/4 PAINTED SCRB'i"S
FRONT PA1."JEL
REAR PANEL
RUBBER FEET WI 4 EACH #4-~OX1/2 SCRNdS, LOCKWASHERS,
HEX NUTS, FL2\T WASHERS
IDTRON WHISPER FAN OR EQUIVALENT WI 4 EACH #6-32X1 SCREWS,
LOCKWASHERS, HEX NUTS, FLAT WASHERS
FAN GUARD
FILTERED LINECORD RECEPTACLE WI 2 EACH #4-40X1/2 SC~~S,
LOCKWASHERS, HEX NUTS, FLAT WASHERS
ACCESSORY J?CJ,NER RECEPTACLE WI 2 EACH #6-32X1/2 SCREWS,
LOCKWASHERS, HEX NUTS, FLAT I!VASHERS
FUSEHOLDER WI 1 EACH LOCKtI1ASHER, HEX NUT, FL.;!I,T WASHER
FUSE, 5 AMP, SLCW' BLOW
LINECORD
TRANSFORr1ER \~I 4 EACH #10-32X1/2 SCREWS, LOCKWASHERS,
HEX NUTS, FLAT WASHERS
ELECTROLYTIC CAPACITOR 150,000 MFD
CI.JI,Mp FOR ABOVE WI 1 EACH #6-32X5/8 SCRB\1, LOCKWASHER,
HEX NUT, FLkT WASHER AND 3 EACH #6-32X3/8 SCRa\1S,
LCCK';v\sHERS,
HEX NUTS AND FLAT WASHERS
ELECTROLYTIC CAPACITORS, 17,000 MFD
CLAHPS FOR ABOVE WI 2 EACH #6-32X5/8 SCREWS, LOC~I1ASHERS,
HEX NUTS AND FLAT ~'JASHERS AND 4 EACH #6-32X3/8 SCREWS,
LOC~'JASHERS, h"EX NUTS AND FLAT~I1ASHERS
BRIDGE RECTIFIER WI 1 EACH #6-32X1/2 SCREW, LOCKWASHER
HEX NUT, FLi"\T WASHER
REVERSE FOWER DIODES IN1183RA OR EQUIVALENT Fil 2 EACH 114"
LOCKWASHERS, 1/4" HEX NUTS, FLAT WASHERS
STANDOFFS WI 24 #6-32X1/4 SCREWS AND 12 LOCKWASHERS
100 PIN DUAL 50 E.J:X;E CONNECTORS
GUIDE RAILS WI 4#8-32X1/2 SCREWS (FRONT) &4 EACH #6-32X3/8
SCRE"wS AND LOCKWASHERS (REAR)
Cl\RD GUIDES
CARD GUIDE LOCKING BurI'ONS
SWITCH #554-3121-511 AND LENS CAP "RESET
II
SWITCH *554-1131-511 AND LENS CAP "PCWER"
BULBS £DR ABOVE
CABLE 'TIES

VECT-)R GRA2HIC r~INFRN1E Page 2
BLUE #6
BLUE UO
RED #6
RED #10
QIY
1
1
2
1
DESCRIPrION
DISK MOUNTIN3 BRACKET (HZ ONLY)
DISK SHIELD BRZ\CKET (r-1Z CNLY)
TERMINAL LUGS:
1
9
5
7
HOOKUP \'I1IRE:
1.0' #12 BLACK
2.5' #12 RED ,
1.5' #12 wrlITE
6.5' #16 BLACK
5.0' #16 VIOLET
6.0' #16 WHrrE
2.5' #16 YELLOW
1.0' #20 BLUE
r-lOrHERBOARD WITH MANUAL
SOLDER

VECTOR GRAPHIC MAINF~ME
VECTOR GRAPHIC rlINT -E'LOPPY PavER SUPPLY PC BOARD
PARTS LIST
Page 3
'':trY •
1
1
1
2
1
2
2
2
2
2
3
6'
DESCRIPTION
PRIr1TED CIRCUIT BOARD
7805 REGULA'I'OR
7812 REGULA'IDR
0.1 NFD 50 VOLT CAPACITORS (1 RADIAL, 1 AXIAL)
~NYLON 4-POSlTON :PLUG
HARIJivARE
1/8 II SPACERS
#6 SPLIT LCCKWASHERS
#6 FLAT LOCKWASHERS
#6 HEX NUTS
#6-32X3/8 SCREW, PAi~EAD SLOT
RED #10 TERMINAL LUGS
HOOKUP 'iURE:
11 #20 RED
I' #20 ORANGE
11#20 VIOLET
I' #20 GREEN
2' #20 ~~dITE

VECTOR GRAPHIC [vJ.A.TI\lFRi;l-1E
roVER SUPJ?L Y
Page 4
THIS SECTION IS PROVIDED FOR REFERENCE. YOUR VECTOR GR2\PHIC MAINFRAME HAS BEEN
COMPLETELY TESTED AT THE FACTORY.
lCAurrONI
THIS POWER SUPPLY USES 110V AC, WHICH IS APOrENTIALLY LETHAL VOLTAGE LEVEL.
EXTREHE CAUTION [,mST 3E EXERCISED 'YIffiEN WORKING \'HTH WESE CIRCUITS WHEN rowER IS
APPLIED. IT IS SUGGESTED THAT THE USER ALWAYS KEEP ONE HAND IN HIS :PCX:KET w""HILE
vJORKING eN' THE fDVJER SUPPLY. NEVER M..I\KE,OHHMETER OR CONTINUITY [1EASUREMENTS
~'iHILE PJWER IS APPLIED.
PPJ::LnUNARY CHECKOUT (wJ:THOUT ro;.mR)
DO NaT APPLY roVER CURING THESE TESTS.
REVIEW ALL PREVIOUS WIRIN3 INSTRUCTIONS TO INSURE THAT THE PCWER SUPPLY IS WIRED
CORRECTLY. mECK ALL CONNECTORS FOR MECHANICAL INTEGRITY, SUCH AS THE SCREW
'rElli~INALS ON THE ELECTROLYTIC CAPACITORS AND THE MOTHERBOARD.' ALOOSE OR
UNTER~INATED WIRE CAN CAUSE SERIOUS DAMAGE TO THE COMPUTER AND PRESENT ASAFETY
H~ZARD TJ THE USER.
USING Al'J OHHMETER, CHECK THE CONTINUITY BETI"ffiEN THE LINECORD RECEPTACLE GROUND
TER."1INAL lli"JD THE NEGAl'IVE TERMINAL OF THE 17,000 r1FD CAPACITOR. CONTINUITY (0
OHr/S) SHOULD BE INDICATED BETWEEN THESE POINTS. tnIl t1EASURE FROt,1 TdE CAPACITOR
TO SOt·1E Bllit:<.E METAL PORTION OF THE CHASSIS. CONTINUITY SHOULD ALSO BE INDICATED
~'JITH THE OHMMETER ON THE Xl SCALE, MEASURE ACROSS THE 150,000 C.'\PACITOR. IF A
SHORT IS INDICATED, REVERSE THE LEADS OF THE OHMMETER AND REPEAT THE
i>lEASURENENT. THE CORREcr INDICATION OF THE OHMMETER WILL BE Z1" SLQ;.IJLY INCREASING
VALUE OF RESIS~~~CE (IN THE ORDER OF SECONDS) TO AFINAL VALUE OF 100 OHMS PLUS
OR ~lINUS 20%. IF A SHORT IS INDICATED BOTH TIMES, THEN EITHER THE CAPACITOR IS
SHORrED OR 'I':"lERE IS A ~'lIRING ERROR.
REPEAT THE ABOVE TEST ON EACH OF THE T",NQ 17,000 HFD CAPACITORS. THE FINAL VALUE
OF RESISTANCE FOR THESE TESTS SHOULD BE 820 O~IS PLUS OR MINUS 20%. THEREFORE,
i\OJUS'r THE SCALE OF THE OHMMETER ACCORDINGLY. THE RESPONSE TL"'lE luLL BE [·lOCH
SHORTER FOR T"dESE CAPACITORS.
PRELIMINARY CHECKOUT (WIlli Pa'ffiR)
BEFORE APPLYING POWER TO THE COMPUTER, REMOVE ALL PLUG-IN CIRCUIT BOARDS.
INSURE THAT THE FUSE IS INSTALLED AND THAT THE Fa'IN'"ER SWITCH IS OFF. CONNECT 'mE
AC LINECORD AND TURN ON THE PCWER SwITCH. LISTEN FOR ANY CRACKLING SOUNDS OR
VERY LOUD BUZZING IN THE TRANSFORMER. H1t'lEDIA'rELY DISCONNECT POWER BY

VECTOR GRAPHIC MAINFRAME
Page 5
UNPLUGGING THE LINECORD IF ANY UNUSUAL SOUNDS ARE NOTED OR IF ARCING IS
APPARENT.
CORRECT OPERATION OF THE POWER SUPPLY SHOULD BE THE FAJ.'J RUNNING AND BOTH PILOT
LIGHTS
CN. WITH A VOL'IMETER CHECK EACH OF THE POWER SUPPLY VOLTAGES. THEY
SHOULD BE:
NOMINAL va..TAGE
+8 va..TS
+16 VOLTS
-16 VOLTS
ACCEPTABLE LIMITS
+7.5 TO +11 VOLTS
+15 TO +20 VOLTS
-15 TO -20 VOLTS
ANY VOLTAGE READING OUT OF THE ACCEPTABLE LIMITS INDICATES AFAILURE IN THAT
CIRCUIT. THE MOST LIKELY FAILURES, AFTER WIRING ERRORS HAVE BEEN ELIMINATED,
ARE DEFECTIVE DIODES OR TRANSFOru1ER.
AFTER THE VOLTAGES HAVE BEEN TESTED AT THE Bav.ER SUPPLY, CAREFULLY CHECK FOR
THESE VOLTAGES CN THE OOI'HERBOARD. THEY SHOULD BE CN THE FOLLCWING PINS:
BUS VDLT.1\GE .
+8 VOLTS
+16 VOLTS
-16 VOLTS
GROUND
·BUS PIN
1, 51
2
52
50, 100
INCOR...l:(ECT READING HERE COULD DAi.""1AGE CIRCUIT BOARDS WHEN THEY ARE INSTALLED. IF
ANY ~ffiO~ VOLTAGES ARE FOUND, CAREFULLY CHECK WIRING TO THE MOTHERBOARD.

Page 6
MINI-FLOPPY POWER SUPPLY P.C BOARD
•
o•
•
o
FRONT SIDE
COMPONENT SIDE
ORANGE
WHT
I
FRONT SIDE
THIS SIDE TO BE MOUNTED FACING
MINI·FlOPPY SURFACE
. SCREW
LOCKWASHER
F-lAT WASHER
1/8 SPACER
I
1812
I
OR MOUNTING BRACKET

MAINFRAME POWER. SUPPLY
ACCESSORY RECEPTACLE
100ll
2W
ON MB
TO MB +8 V
+150,000 MFD
I10 VDC
1183RA
_2;2
MFD
9
8
I
POWER I
LI
LINE CORD I
RECEPTACLE °I
AND RFt FILTER
N
~
S
G-
820Q
1W
ON MB
1+TO MB
+16~
8,OOC MFD
.I 20VDC
ON BUS TO MB -
·16 V
N.O.
RESET 820,Q
IW
ON MB