GTC SW10 User manual

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SW10
MAINTENANCE
MANUAL

SW10
MAINTENANCE
MANUAL
GTC PN 970005-001
PRINTING: MAY 1982

Q'.P!RlIHr 1981.
GIWW.. '.i'iRllllll CDIOWl.'D
14831 mtm.lN AVE. 'nB!'JN, m. 921;8'-7282
[phone]
11« 918-595-2428
All rights reserval R> µu:t Of this
J;d>lication may be reproclloed in aJ¥
ferro withrut written pemlission fran
GerEral Temrl.ral Cccporatim.
'llle followirg related cb::UI1Sltsare available from G'.IC:
00.0 users Man.Jal
000 Reference cara
W MJnitor Man.Jal
m 970004-001
m 97000&-001
PN 05018-001
'1he naterial in this marual. is for infornation pJqX>SeS ooly. 'llle oontents
am the prod.Jct it describes are s:bjed: to dlarlge withrut ooti~ General
Terminal. Cccporatioo makes no repreSSltation or warranties with r~ to
this marual..
Printed in IBA

Sectiai
1.0
1.1
2.0
2.1
2.2
2.3
2.4
2.5
2.5.1
2.5.2
3.0
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.3
lN'JR)[IJCI'I(N ••••••••••••••••••••••••••••• 1-1
GENENAL I!BClUPrICll •••••••••••••••••••••• 1-1
Tml'1l{; &TESI.'AIIlS •••••••••••••••••••••• 2-1
~ AlJXlt1l\T.IC 'JIS'IS ••••••••••••••••• 2-1
OFF LINE CINFlDB'XE TEB'IS •••••••••••••••• 2:-1
CN' L1NE ~ TES'IS •••••••••••••••••• 2:-2
1il~ 'Bf)-WAY' 'lml' ••••••••••••••••••• ~2
~T ~••••••••••••••••••••••••••2-2
~d ••••••••••••••••••••••••••••••• 2-2
'1'e.!'JtdrB1 Centro! Baird ••••••••••••••••• 2-3
'IHE[RY OF ~ICNS ••••••••••••••••••••• 3-1
GENENAL •••••••••••••••••••••••••••••••••• 3-1
~a ............................... 3-1
Tenni.nal Control Beard ••••••••••••••••• 3-1
f.tnitcx Asaelrbly ••••••••••••••••••••••• 3-1
R:Jwer 'Itansfonners ••••••••••••••••••••• 3-1
IEmn.ED '1HEIRY OF OffRl.n'ICNS •••••••••••• 3-1
Keyboard Asaelrbly •••••••••••••••••••••• 3-1
Tenni.nal Control Beard ••••••••••••••••• 3-3
(1)
(2)
(3)
[ 4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
[12)
(13)
Ad::lress Init Cira.ti.t •••••••••••• 3-3
Mi.cr~rocessor Cira.ti.ts ••••••••• 3-3
Progrcrn H¥:M •••••••••••••••••••• 3-S
Scratch Pa:1 RAM. •••••••••••••••• 3-5
DispJ.a.y mi ••••••••••••••••••••• 3-6
Video Timer & Cmtroller (V.Irc) .3-6
5'yst.Eln Cl..cck •••••••••••••••••••• 3-7
RoNBuffer •••••••••••••••••••••• 3-7
Video Galerator ••••••••••••••••• 3-7
Functim Decoder: #2 ••••••••••••• 3-9
E\nction Decuder tl ••••••••••••• 3-9
l'brrV'olatile Mana:y (mM) ••••••• 3- HJ
Int:erfaoe Cira.ti.ts •••••••••••••• 3-Je
[14) Bell J.lrrp •••••••••••••••••••••••• 3-11
(15) Paier ~y •••••••••••••••••••• 3-11
ltt>nitar Assalbfy ••••••••••••••••••••••• 3-12
R:Jwer Panel A9:1elbl.y ••••••••••••••••••• 3-12
flNEl<NIC.S •••••••••••••••••••••••••••••••• 3-13
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
5.0
Table of pmtmhj
DISASSEltBLY ~ •••••••••• 4-1
Raoovi.n:J the Front Bezel •••••• 4-1
Raroving tre tbm.ting Frane•••4-2
Ramv:in:J the I..ogic Cmtrol :00.4-3
Raroving tre CRI' •••••••••••••• 4-4
storinJ the CRr ••••••••••••••• 4-6
Raroving tre PQ./er PaI'el. •••••• 4-7
Ramv:in:J the f.tnitor ctrl.Bd ••4-8
Disasserbly of tre Keyboord ••• 4-UJ
SCEEM\TICS
~rd 720002 •••••••••••••• 1 sh
Tenni.nal Control Beard ••••••• 5 sh
6.0 O\BLE5 AND CXNNECitRS ••••••••••• 6-1
7.0 CI«ERIN; ANDREPAlRS •••••••••••• 7-1
7.1 Manlal. OrderirxJ ••••••••••••••• 7-1
7.2 Parts Orderin:J •••••••••••••••• 7-1
7.3 !tens Return:d for REpair ••••• 7-1
7.4 Parts Lists ••••••••••••••••••• 7-3
~A •••••••••••••••• z8 Prcxilct SfeC
APPENDIX B ••••••••••••• • VOC Prod.let S}?eC
APHNDlX c•••••••• Ra-I B.lffer Prodlct SfeC
APPENDIX D ••••••••••••••• NVM Prcxilct S}?eC

Figure
1-1
1-2
2-1
2-2
2-3
2-4
2-5
2-6
3-1
3-2
3-3
3-4
3-5
4-1
S-1
6-1
6-2
6-3
6-4
6-5
7-1
7-2
3.1
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
I.j st; of Figures and 'DR'm
List of Figures
SOS ~ica:tions •••••••••••••••••••••••••••• 1-1
Illustrated Parts Breakd:Jwn •••••••••••••••••••• 1-2
Status Line Error Messages ••••••••••••••••••••• 2-1
'I\Jrn AIOUl'K3 Pl~ ••••••••••••••••••••••••••••••• 2-2
Cross CclJpler cable •••••••••••••••••••••••••••• 2-2
S4l0 Inl:eif~ Co'lnectcrs •••••••••••••••••••••• 2-4
Temrl.nal. Ca'ltrol Board 'lest Points ••••••••••••• 2-5
'fypical wa.vefOIIDS •••••••••••••••••••••••••••••• 2-6
SOS Blcx::k D.iagran.••••••••••••••••••••••••••••3-2
KE¥board Scanning SEquen::e ••••••••••••••••••••• 3-2
'la:mirBl Ccntrol Baird Sigml Ela-t D.iagran •••••3-4
Cllaracter FoIJrat ••••••••••••••••••••••••••••••• 3-8
'le:miml. Ccntrol Beard Ci.rant Iooations ••••••• 3-14
Disassercbly Proced.lres ••••••••••••••••••••••••• 4-1
Sc::b31atic:s ••••••••••••••••••••••••••••••••••••• 5-l
ConnnicationPcrts •••••••••••••••••••••••••••• 6-1
+5V TransfoIDer to logic Board ••••••••••••••••• 6-2
+lSV Tl:ansfa:mer to Logic Beard. ••••••••••••••• 6-2
logic Ban:d to MJnitor Ban:d ••••••••••••••••••• 6-2.
Kf¥b<Brd to 'le:miml. cable ••••••••••••••••••••• 6-3
W:Cranty ••••••••••••••••••••••••••••••••••••••• 7-2
sne Fanily Tree ••••••••••••••••••••••••••••••• 7-3
List of 'Il=!hl es
J:BCl4 Enable •••••••••••••••••••••••••••••••••••• 3-5
SOS FJNAL ~••••••••••••••••••••••••••••7-4
000 UNIT ASSEl43LY••••••••••••••••••••••••••••·7-5
~ ~ Ol'IOR ASSEJeLY ••••••••••••••••••••• 7-6
D~ 'IO MAIN BOARD ASSEM3LY ••••••••••••••••• 7-6
~ QJi1llU.. BCJ\RD ••••••••••••••••••••••••• 7-7
RllER PANEL ~••••••••••••••••••••••••••·7-11
KE'lBCJ\RD~ •••••••••••••••••••••••••••••• 7-12
l<EYBONU)R:: BOARD ~••••••••••••••••••••·7-12
CPl'D'U\L H\RJB ••••••••••••••••••••••••••••••••• 7-13
Page iv-----------------

I
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L
I
\..._.
SW 10 TERMINAL
________________ Pagev ______________ _

001 Mnjnt=manre Kmnal
'l'ahle of Cmt:ents
'nrls p:lge intentiorally left blank

1.1 Dl&QUJm
'Ibis manual is inl:S'lded to be used l::!r' servi~
~ED'lIEl who must peifcrm d.iagrostic tests on
arrl repri.r cf the 000 termiml. It is asst.med
that the tedmician is familiar with basic data
communication techniques and normal SW10
terminal operation. The following manuals
EtlaJl.d be corwlted is conjtnction with this
narual:
970004~1
0501H01
Only the d:>mestic model of the SW10 is
disa.issed in this maruaJ... Diff erern:s between
the d:>mestic arrl international p:Mer awlys
are shown on schercatic 72.0019 sheet 2.
1.1 CDBRAit JBQ1Ptl11J
The SW10 is a microprocessor (ZS) based
terminal with a detached ANSI keyboard. '!be
operating parameters may be modified by the
q;ierator dlrillJ smtJP roode.
'Ihe terminal allCMs the o~ator to serially
transmit data to or receive data fran a ranote
host CPU. The infornation is pissed OV'er a
full d.Iplex chanrel at selectable baud rates up
to a nax.inun of 9600t{E.
'!he 12 ird1 (diagaal.) screen is arranged in an
80 oolumn arrl 24 row fornat plus a 25th status
line. Each character is displaya:I as a 5x7 d:>t
ma tr ix on a 7x10 field. A non-interlaced
(overlap) scan method is used to refresh eadl
frame at a 60Hz (or 50Hz) rate.
InterfacillJ is thru a main :EX>rt arrl a printer
port. Both are rear ~ RS-232C cx:ruECtors.
'!be printer IX>rt is a gated IX>rt which, if
desired, allows data received from the main
:EX>rt to be piSsed thru the printer :EX>rt withrut
being displayed on the screen.
'!he temiral cperatirg piraneters are changed
from the keyboard. There are no i;hysical
switches. Figure 1-1 lists the changeable
parameters. The underline condition is the
state selected at tine of narufacture.
I ffiYS1P'L gww :1p1sr11H
I DISPIAX KEYlpNE
IHElGfl' 11.5" (29an) 2.5" (6.4an)
lwmm 13" (33an) 17" (41.an)
IIEPIH 12" (30an) 8
11
(20an)
IWEIGHI' 22 ll:s (10kg) 4 lbs (l.8kg)
1va..'Jl'GE'/FREO 105-135 Vac 50/60Hz 61 Watts
l'I'EMPmMURE (C) 5 to 40 C)fer/-30 to 65 Stor
llllMIDl'IY 5% to 80% mn-<x>rrlensing
I WlflAY QJHCIWISl'llH
I &:REEN SlZE
I vmmG ARFA
I &:REEN CAPPCr!Y
I DISPIAY MMRIX
I OCREFN 1?llEPlm
I CH1\RPCl'ER fFr
I CliARlCIER MMRIX
I <IRDR
111\IN um lNIBE'Q
12" Diagoral
8.25" x 6.25"
1920 Olaracters
EE x 24 + Status
P31(Gm) or P4 (lilt)
128 A«:;CI I
5x7 00. 7x10 field
Rellerse Video Blcx::k
I RS-232C ~hroID.IS
I Selectable ~FF
I 50 - 9600 Baud Full nt>lex
I Splce/Mark/EVerv'OcH Parity
I JJRDDP Rm' DDmi'!!QS
I RS-232CAsyrdlrax:>~
I Screen Print
I Printer COntroller ~
I Haldi.es HUN1'ER BIBY
I fBllP KIE BWNBIBfi
#01> M)IE
#02> BNJD
#03> mRI'lY
N4> KIE
#05> AUIO ttil LlNE
#06> J1J'10 WRAP
#07> LlNE END
NB> cumR !LINK
#09> O\PS LOCK
#10> MAOOIN BELL
#11> SIIFT 3
#12> lU\IER FREOJmc::Y
113> PRmr'ER BUSY
#14> KEYBOARD
#15> mssmRJ
116> lUlO REPEAT
117> ~ PRlNl'
118> lUlO XCN
#19> u:xx. EXlD
#20> REY a.Ia<
#21> fliJil saa.r.
#22> RBTm>E VIDID
123> BR1GEIINE5S
CNLINE/ra:AL
50 'IHlU ~
~MN/a:Dl
YJ!IU/\ll52fPID;RAM I
.w'OFF I
.w'OFF I
SID~ I
.w'OFF I
CN/m: I
.w'OFF I
J/Eta.ISH RlJN) J_
50/.61. mmz I
.I.W'HD I
1 I 2. I
CNLY/DISPIAY I
.w'OFF I
CN/.W: I
~I
CN/m I
,W'OFF I
CN/.W'. I
etV.W: I
1 'lHlU 16 (.8) I
---------------~'
Figure 1-1 SiLI &n;jficatj005
----------------Page 1-1 ---------------

8W10 ffaintenapce Mapual SICTIOI 1
FRONT BEZEL
MCNITOR FRAME
PART . NO 620038
PART NO 03584-001
:l?aiER PANEL
ASSEMBLY NO 660021-00X
SCHEMATIC NO 720019
PARTS LIST NO 660021-UOX
K~rBOARD COV.t.R/BRZEL
PART NO COVER 0358'5-001
PART NO BRZEL 03599-uO 1
REAR HOUSOO
PART NO 03579-001
MONITOR
ASSEMBLY NO 890001-00X
SCHEMATIC APPENDIX A
PARTS LIST APPENDIX A
FLYBACK TRANSFORMER
PART OF ASSY 890001-00X
TERMINAL CONTROL BOARD
ASSEMBLY NO 75001 9-00X
SCHEMATIC NO 750019
PARTS LIST NO 750019
M:>NITOR CONTROL BOARD
PART OF ASSY 890001-00X
~YBOARD CABLE KEYBOARD, P. C. BOARD
PART NO 900006 ASSEMBLY NO 750002-00X
SCHEMATIC NO 750002
PARTS LIST NO 750002
Figure 1-2, Illustrated Parts Breakdown

'lhi.s sectiai. describes test procedlres that may
be used to check the cperati.rxJ con:lition of the
terminal. They may also be used to isolate
failures to the tecninal, the modem, or the
transnission lines.
2 .1 P<lq-<IJ AD'JQIATIC '1'1§1'5
When power is ai;plied the terminal will ~Iform
a series of five internal diagn<Etic test to
determine the cxxrlition of its OOM, RAM, am
NVM circuits. If an error is detected, the
testing will stop and an error message will
ag;:ear on the status line i.rrlicati.rxJ the rature
of the problan.
a. l01 Wl'S
'llE IOM cortents are read out am a checksum is
calculated. 'Ibis number is canpared to a
previously stored checksum. If the numbers
natch, the test is success:ful..
b. Z8 '.tmI'
A blcx:k of IOM is written into the 1281¥tes of
za PAM. A bit ty bit cani;mioon of the roM am
RAM is made.
c. RAM 1 'lml'
This test checks the condition of the 2K of
display RAM ~ writing a block of roM into the
RAM am makirJJ a bit l:y bit oo~ioon at each
memory lcx:atiai..
d. mi 2 'lffil'
'lhis test creeks the 1K of scratch i;ad mM. A
block of 101 is written into the RAM and a bit
~ bit comparison is made at each memory
lcx:atim.
'llE NIM (mn-volatile memory) is essentially an
electrically alterable roM am is subjEct.ed to
the same tests as the program IDM. The
contents of the NIM is read and a checksum is
calculated. This number is compared to a
checksum stored in the NVM. If the numbers
match, the NllM is axx::essful..
Fail time a i;araneter is changed am saved, a
r&1 dlecksum is calculated an::1 sta:ed.
If an NlM error is detected, a set Of default
i;mameters will be entered into the NIM. '!his
allows the q>erator to trouble-shoot the
terminal with a kmwn set of corrlitions. 'lhese
default corxlitions are listed in SEction 1.
I
I MESSZGE
!~~~~~~~~~~~~~~~~~
I
I Error:
I Error:
I
I Error:
I Error:
I Error:
I
I Error:
I
RJt1
za
RAM 1
RAM 2
WM
~un error
Error in 128 cytes of za
RAM
Error in display RAM
Error in scratch i;ad RAM
Error in mn-volatile
IlBIDry
Error in c:mnmications
interface
!~~~~~~~~~~~~~~~~~
Figure 2-1, stah16 Line Error !!eeMgP6
2 ,2 OFF LINE CD1FT])fR;R TmTS
Place the terminal in the SE'll.JP mode by
pressing the <SETUP> key. Next, press the
<SHIFT> + <D> keys. This !reds the terminal
with a known set of cperatirJJ paraneters under
which the unit can be tested. 'lhese i;arameters
will be displayed on the screen. Exit the
SE'IUP node l:y pressing the <SEllJP> key again.
Mer the comnarXI sequen:e ES:: #8. 'llE s::rem
will be filled with "E"'s. Verify that each
display lcx:ation contains a character. The
screen may te cleared l:y pressirr3 <SUFI'> am
<Ema'D>.
Exercise the tenninal fran the keyboard usi.rg
all the up~r and lower case keys, all the
numbers, and all the special symbols and
punctuation marks. Verify that the cursor
control keys and the numeric pad keys are
operating correctly. Perform carr:iage return,
line feed. tab, etc., q>erations. Enter data
into positiai. 00 of line 24 to test for proper
scrollirJJ cperation.
The power up test can be started from the
k~d three ways:
1. Fran the SEm.JP node, press <SHIFT><D.