AUTOHELM Masterview ST80 User manual

Z211 ST80 Masterview Service Procedures
D2601-1
masterview
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CE MARKING OF EQUIPMENT/REPLACEMENT PARTS
WARNING
IftheAutohelmequipmentunderrepair,test,calibration,installationor
settingtoworkcarriestheEuropeanCEmark,only partsand components
suppliedorapprovedforsuchusebyAutohelm should beusedinorderto
maintaincompliancewiththerelevantCErequirements.
Incorporation,useorattachment,by any means,ofpartsorcomponents
notsuppliedforornot approvedforsuch use byAutohelmor,ifsuppliedor
approved forusebyAutohelm, not properlyfittedinaccordancewith
instructionspublished,providedorrecommendedbyAutohelm,maycause
theequipmenttomalfunctionand,inparticular,tobecomeunsafeortono
longermeettherelevantCErequirements.Inthesecircumstances,
RaytheonMarineEuropeLtdexcludesliabilitytothefullestextentpermissi-
bleinlawforany loss ordamageincludingany liability foritscontributionto
suchlossordamagebyits negligent actsoromissions.
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Contents
1. Description ....................................................................5
2. Operation ......................................................................5
3. Disassembly ..................................................................6
4. Assembly .......................................................................6
5. Functional Test...............................................................8
5.1 Preliminary Inspection.........................................................8
5.2 Test Equipment ..................................................................8
5.3 Functional Test Flowchart....................................................9
6. Spares Numbers ..........................................................11
7. Circuit Description .......................................................13
7.1 Power Supplies................................................................13
7.2 External Signals ...............................................................13
7.3 Signal Processing ............................................................14
8. PCB Detail ...................................................................19
8.1 PCB Layout......................................................................19
8.2 PCB Component Lists.......................................................20
Illustrations
Figure 1 Exploded View ...............................................................7
Figure 2 Test Equipment Connection ............................................8
Figure 3 Block Diagram.............................................................16
Figure 4 Circuit Diagram (Sheet 1) .............................................17
Figure 5 Circuit Diagram (Sheet 2) .............................................18
Figure 6 PCB Layout .................................................................19
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1. Description
Theitemcoveredbythis section oftheMaintenance Manual istheST80
MasterviewHead, ProductCodeZ211.
Masterviewis amultifunctioninstrumentwhichdisplays SeaTalkdatain
alphanumericandgraphicformats.
2. Operation
There arenooperationalactivitiesrequiredtosetupor calibrate the
MasterviewfortestingexceptasdetailedinChapter5.
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3. Disassembly
RefertoFigure1, ExplodedView.
1. Unscrew andremovethesix No. 2x1/2 screws (6).Separate the rear
cover(5)fromthefrontcover(1)usingthe ST80 CaseSeparationTool
(T041).
2. IfanST80CaseSeparation Toolis not available,separatethecovers
byhand.Toavoid shatteringthecase,DO NOTusescrewdriversor
othertoolstoprisethecovers apart.(Note: If theyarestill attached,itis
helpfultoleavethebrassmountingstudsscrewedintotheunitrear
cover, ortoinsertstuds if asparepairareavailable,togaina purchase
ontherearcover)
3. WhenhandlingthePCB/LCDsubassembly,linenorothersuitable
material(
not nylon)glovesshouldbeworntoavoidleaving fingerprints
orothermarksonthefrontlabel.If gloves arenot worn,handlethe
subassemblybythe edges only.Ifthelabel ismarked,clean using a
softstatic-freeclothonly.Donotusesolvents or detergents ofany
type.PullthePCBsubassembly (3) offthe connectorpinsinthe rear
cover. Work roundthe PCB, liftingeach side alittle at atime to avoid
distortionofthePCBandsolderbucketconnectors.Donotattemptto
separatetheLCDfromthePCB,asit is notpossibletore-align and
connecttheflexiconnector
4. Unplugthebuzzerconnector(4)fromthePCB(Note:thebuzzeris
gluedintotherecessin the rearcoverandisnotremoveable)
5. Takethe keypad mat(2)out of thefrontcover.
4. Assembly
RefertoFigure1, ExplodedView.
1. Placethekeypadmat(2) into thefrontcover(1)
2. SeenotesinDisassembly#2on handling thePCB/LCDsubassembly.
Plugthebuzzerconnector(4)intothePCB(3).PositionthePCB
subassembly(3)intotherearcover (5), ensuringthattheconnector
pinsintherearcoverlineupwith the solderbucketsonthePCB before
pressing thePCB intoplace.Workroundtheedgesas muchaspossi-
ble,pressinggently but firmlysothatthesubassemblysettlesinto
placealittleata time andtheELpanel/LCD surroundarenotdamaged
ordistorted
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3. Assembletherearcover(5)tothefrontcover.Holdtheinstrumentin
bothhandsface down andclearof the worksurface.Usemoderate
thumbpressure,or preferably heel ofthehandpressure whichspreads
theareaofcontact,topressthefrontcoverintothe rearcoveralittle at
atime.Workfirstonthesides,thentopand bottom and backtothe
sides asmanytimesas necessaryto bed downtheassembly.Finally
goroundtheedgesandcornerstoensurethatthecovers arefully
matedandforma goodseal
4. Insertandscrewinthe sixNo. 2x 1/2 screws(6),using ahand screw-
driveronly.Startwiththescrewsin diagonallyoppositecornersand
finishoffwiththecentraltopand bottomscrews.
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1. Front Cover (W065)
2. Keypad Mat (Q145)
3. PCB (Q144)
4. Buzzer Connector
5. Rear Cover (W067)
6. Screw No.2 x 1/2in. Pozi pan head (6 off)
13
2
4
masterview
Figure1ExplodedView
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5. Functional Test
5.1 Preliminary Inspection
Before testing, inspecttheinstrumentforphysicaldamage(crackedor
broken screen,case,bentconnectorpins,etc.).
Take offthe rear coverandcheck forsigns of wateringress.Check for
damagetothePCB,inparticular,overheatingonthepowersupplyinput
andoutputpins andPCBtracks.
Cleanoffany grease, dirtordepositsinoronthe instrument.
Checktheconnectorson the rearcaseforcorrosionand burning.Cleanor
replaceasrequired.
Presseach button inturn;checkthatallhave a positivefeeltothe action
andgivean audibleclickwhen pressed.
5.2 Test Equipment
Connecttheequipmentasshown in Figure2.
Before testing, ensurethat the instrumentisnotgrouped (i.e.tiedintoa
particularsystem)bycarryingouttheungroupingproceduresetoutinthe
Operationsmanual.
SeaTalk
1. 5A Fuse/Circuit Breaker
2. ST80 Power Cable
3. ST80 Masterview under test D2602-1
+
+
4. ST80 Daisychain Cable
5. ST80 Remote Keypad (Known good)
6. 12V 5A Power Supply
6
23 45
1
Figure2TestEquipmentConnection
Thekeypadispresentonlytoactas a receiver andtransmitterofSeaTalk
informationand couldbereplacedbyanyknowngoodST80 instrumentor
keypad.
References tokeyoperationsinthe flowchartareto Masterviewkeys.
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5.3 Functional Test Flowchart
ST80 MASTERVIEW
VERSION 1.0
SERIAL NUMBER
0206 00000025
PRESS KEYS A & D
TOGETHER FOR 10
SECONDS. CHECK DISPLAY
SHOWS VERSION AND SERIAL
NUMBERS AND THERE
IS A ONE SECOND BEEP
EXAMPLE IS OF FORMAT ONLY:
SERIAL IS DIFFERENT FOR EACH
INSTRUMENT AND THE VERSION
NUMBER MAY CHANGE.
PRESS KEYS A & D
MOMENTARILY.
CHECK DISPLAY SHOWS
ALTERNATING PATTERNS AS
ILLUSTRATED INSET. EACH
FRAME IS DISPLAYED FOR
ONE SECOND. CHECK
ILLUMINATION TOGGLES
BETWEEN OFF AND LEVEL 3
AT 1 Hz
POWER OFF; END OF TEST
WAIT FOR ONE MINUTE OR
PRESS KEYS A & D
TOGETHER.
CHECK DISPLAY REVERTS
TO A NORMAL OPERATIONAL
SCREEN (SEE NOTE)
CHECK DISPLAY SHOWS
A NORMAL OPERATIONAL
SCREEN (SEE NOTE)
CHECK CABLES,
TERMINALS, ST80
ITEM, CONNECTOR
PINS, PCB SOLDER
BUCKETS, POWER
SUPPLY. RECTIFY
AS NECESSARY.
RESTART
START
CONNECT TEST EQUIPMENT
SWITCH ON
CHECK MASTERVIEW (3)
POWERED UP
CHECK KEYPAD
(5) POWERED UP
NOTE: THE DISPLAY IS THE
OPERATIONAL FRAME WHICH
WAS CURRENT AT THE TIME
OF THE LAST POWER-DOWN
OF THE UNIT
ALTERNATE ROWS
ALTERNATECOLUMNS
ALL SEGMENTS OFF
ALL SEGMENTS ON
VERSION
1.0
PRESS CHAPTER (A) AND
PAGE (B) KEYS
TOGETHER FOR 2 SECONDS.
CHECK DISPLAY SHOWS
N
Y
OK CHANGE PCB
& RESTART
N
Y
OK
N
Y
OK
N
Y
OK
N
Y
OK
SETUP
PRESS PAGE TO
CONTINUE
NOTE: THE DISPLAY MAY
SHOW SETUP OFF IF USER
CALIBRATION IS DISABLED.
PRESS KEYS A & B
TOGETHER FOR 2
SECONDS. CHECK DISPLAY
SHOWS VERSION NUMBER
N
Y
OK
N
Y
OK
NOTE: THE DISPLAY IS THE
OPERATIONAL FRAME WHICH
WAS CURRENT AT THE TIME
OF THE LAST POWER-DOWN
OF THE UNIT
N
Y
OK
NOTE: THE DISPLAY MAY
SHOW A DIFFERENT
VERSION NUMBER
CHANGE PCB
& RESTART
CHANGE PCB
& RESTART
CHANGE PCB
& RESTART
CHANGE PCB
& RESTART
CHANGE PCB
& RESTART
CHANGE PCB
& RESTART
KEY IDENTIFICATION
FOR FLOWCHART USE
A B C D
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