Raytheon ST60 User manual

Part1. ST60Instruments–Digital
ST60 Instruments Service Manual 83142-1 i
Part 1. ST60Digitalinstruments
D4468-2

Part1. ST60Instruments–Digital
ii ST60InstrumentsServiceManual 83142-1
Contents
ST60Digitalinstrument explodedview ............................................................................ iv
Chapter1. ST60 Speedinstrument ................................................................................... 1
Disassembly/reassembly ............................................................................................ 1
Self-testprocedure...................................................................................................... 1
Selfteststage 1 ................................................................................................. 1
Self-teststage2 ................................................................................................. 1
Self-teststage4 ................................................................................................. 2
ST60Speedspare parts list.......................................................................................... 3
ST60Speed PCBdetails ............................................................................................. 4
Input/Outputsignals.......................................................................................... 4
ST60Speedcircuitdiagram ............................................................................... 5
ST60Speed PCBlayout ............................................................................................. 6
ST60Speed PCBcomponentlist ....................................................................... 7
Chapter2. ST60 Depthinstrument ................................................................................... 9
Disassembly/reassembly ............................................................................................ 9
Self-testprocedure...................................................................................................... 9
Selfteststage 1 ................................................................................................. 9
Self-teststage2 ................................................................................................. 9
Self-teststage4 ............................................................................................... 10
ST60Depthspare parts list........................................................................................ 11
ST60Depth PCBdetails ........................................................................................... 12
Input/Outputsignals........................................................................................ 12
ST60Depthcircuitdiagram ............................................................................. 13
ST60Depth PCBlayout ........................................................................................... 14
ST60Depth PCB componentlist ..................................................................... 15
Chapter 3. ST60 Multi instrument .................................................................................. 17
Disassembly/reassembly .......................................................................................... 17
Self-testprocedure.................................................................................................... 17
Selfteststage 1 ............................................................................................... 17
Self-teststage2 ............................................................................................... 17
NMEAI/OTesting.......................................................................................... 18
ST60Multi spare partslist......................................................................................... 19
ST60Multi PCBdetails ............................................................................................ 20
Input/Outputsignals........................................................................................ 20
ST60Multicircuitdiagram.............................................................................. 21
ST60Multi PCBlayout ............................................................................................ 22
ST60Multi PCBcomponent list ...................................................................... 23

Part1. ST60Instruments–Digital
ST60 Instruments Service Manual 83142-1 iii
Chapter 4. ST60 Tridata instrument............................................................................... 25
Disassembly/reassembly .......................................................................................... 25
Self-testprocedure.................................................................................................... 25
Selfteststage 1 ............................................................................................... 25
Self-teststage2 ............................................................................................... 25
Self-teststage4 ............................................................................................... 26
ST60Tridatasparepartslist ...................................................................................... 27
ST60Tridata PCB details.......................................................................................... 28
Input/Outputsignals ........................................................................................ 28
ST60Tridatacircuitdiagram ........................................................................... 29
ST60Tridata PCB layout .......................................................................................... 30
ST60Tridata PCBcomponentlist .................................................................... 31

Part1. ST60Instruments–Digital
iv ST60InstrumentsServiceManual 83142-1
ST60Digitalinstrumentexplodedview
1234
1. Facia bezel 2. Keypad 3. Facia 4. Inner keypad 5. Label 6. LCD display 7. Diffuser 8. Reflector 9. PCB assembly 10. Case seal
Note: A. It is recommended that a new case seal (10) is fitted on re-assembly.
11. Rear case 12. Washer (x3) 13. Screw (x11) 14. Label (rear case) 15. Gasket 16. Flush mount bezel 17. Screw (x4) 18. Flush mount seal 19. Rear bracket
56
12
(x3) 13(x3)
Torque 0.22Nm(2lbin)
13(x8) Torque 0.22Nm(2lbin)
7 8 9 10 (Note A) 11 14 15
D4448-1
2 Assembly16
17(x4)
Torque 0.33Nm (3lb in) 18 19
Flush mounting
Figure 1: ST60Speed, Depth,Multi andTridataDigitalInstrumentexploded view

Part1. ST60Instruments–Chapter1.Speed
A22001
ST60 Instruments Service Manual 83142-1 1
Chapter1. ST60Speedinstrument
Disassembly/reassembly
Onreassembly(refer to Figure1),it is importantthatthePCB assemblymoduleis
fixedtothefacia(3)usingatorqueof0.22Nm(2lb in). Similarly,fixingtherearcase
(11)tothe facia (3)mustalsobetorqued to0.22Nm(2lbin).
Note:Failuretopracticeusingtherecommendedtorquesmayresultindamageto
thefaciainserts.Itisalso recommendeda newcaseseal(10)is fittedonreassembly.
Self-test procedure
TheST60Speedinstrument has built-inself-testfunctionstoaid fault diagnosis.
Toaccessself-testmode,pressKey1andKey4togetherfor4seconds.Whenthe
unitbeeps,immediately press Key3andKey 4 togethermomentarily.The unit will
enterself-teststage1.
Selfteststage 1
A. Theunitshoulddisplay “TEST1”
B. AudibleBeep for 1second.
C. Therewillbea SeaTalktransmissiontocheckthetransmit/receivecircuits.
D. TheEEPROMis tested.
Thefollowingfailurecodesmaybegenerated:
Message FailureMode Action
FAIL1 SeaTalkRx/Tx Checkfordamagedbucketconnectors/rear-casepins.
CheckSeaTalkinterfacecomponentsaroundTR1,TR2andTR3.
FAIL2 EEPROMfailure ReplaceEEPROM(IC2)
Ifthereisnoaudiblebeep,checkTR11andRN3andthe buzzerfordamage.Ifthe
beepisquiet, check R21.
Ifall test pass,“PASS”is shownonthe display. Press Key1andKey2 together
momentarilytoprogress to self-teststage2.
Self-test stage 2
A. Theunitshould display “TEST2”for1 second.
B. Illuminationwillchangebetweenlevel0andlevel3everysecond.
C. Anykeypresssoundcause audible beep.
D. LCDsegmentswillcyclethroughthefollowingsequence:
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Part1. ST60Instruments–Chapter1.Speed
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2ST60InstrumentsServiceManual 83142-1
Nofailcodesaregeneratedsincestage2isan audio/visual check.The followingcan,
however,beusedasa guidetoisolateaproblem:
FailureMode Action
Noillumination CheckTR14,TR13,TR15andassociatedcomponents.
CheckallLEDs.
KeypadIlluminationfailure CheckTR14,TR13,R22andR23.
(LCDilluminationwillalsobedegraded) CheckLED1-6foropencircuit.
KeypadilluminationOK CheckTR14,TR15,RN3,R24.
butdegradedLCDillumination CheckLED7and8foropencircuit.
Nobeepwhenkeypressed Replacekeyswitch.
LCD segment(s) missing completely Check LCD solder pins for poor/dry joints.
CheckIC3forunsolderedpins.
FaintLCDsegments CheckLCDpinsforshorts.
CheckIC3forshorts.
PressKey 1andKey2 together momentarilytoprogressto self-teststage4(stage 3
notsupportedon thisinstrument).
Self-test stage 4
Note:Aknowngoodtransducer must beconnectedforthistest.
A. Theunitshoulddisplay‘TEST4’for1 second.
B. Transducertestisperformed.
Spinthepaddle wheel within15secondsof entering thistest.Ifthe interface is
workingcorrectly,“PASS” will beshown.Otherwise“FAIL10”is shown.
Ifthetest fails, do thefollowing:
Check FailureMode Action
Voltageat12V_SPD Novoltageorlowvoltage(<11.0) CheckTR17,TR20,R63andR64.
with12Vbatterysupply.
L7 Opencircuit ReplaceL7
D3 Opencircuit ReplaceD3
VoltageatTEMPpin Outsideacceptablerangeof CheckL9foropencircuit
0.76to1.00V(18-25degreesC) CheckR14
AVREF Outsideacceptablerangeof CheckTR4.
2.5V+/-0.25v CheckR74,17
PressKey1andKey2togethermomentarilytoexitself-test.

Part1. ST60Instruments–Chapter1.Speed
A22001
ST60 Instruments Service Manual 83142-1 3
ST60Speedsparepartslist
Theitemnumbersreferto
Figure1: ST60Digitalinstrument explodedview
Item Spare/AccessoryDescription PartNo. Comments
1 Faciabezel A25001
– Suncover,standard A25004 Notillustrated
2 Keypad,Speed A28019 Packof5
Faciawithcaseseal, including A28013
3 Facia
10 Caseseal SeeA28027
12 Washer(x3)
13 Screw(x11) Torqueto0.22Nm(2lbin)
Innerkeypad, including A28022
4 Innerkeypad
10 Caseseal SeeA28027
12 Washer(x3)
13 Screw(x11) Torqueto0.22Nm(2lbin)
5 Displaylabel,Speed A28031 Packof5
6 LCDdisplay,Speed A28023 AlsoservestheDepth
orMulti
PCBassembly,Speed, including A28010 Assembledmoduleconsisting
of items 6, 7, 8, 9.
6 LCDdisplay,Speed SeeA28023
7 Diffuser
8 Reflector
9 PCBassembly,Speed
10 Caseseal SeeA28027
12 Washer(x3)
13 Screw(x11) Torqueto0.22Nm(2lbin)
10 Caseseal A28027 Packof5
Rearcaseassembly, including A28014
10 Caseseal SeeA28027
11 Rearcase
13 Screw(x8) Torqueto0.22Nm(2lbin)
14 Label,Speed(rearcase) A28035 Packof5
15 Gasket A28028 Packof5
16 Flushmountbezel A25002
Flushmountkit, including A25003
– Suncover,flushmount Notillustrated
16 Flushmountbezel SeeA25002
17 Screw(x4) Torqueto0.33Nm(3lbin)
18 Flushmountseal
19 Rearbracket

Part1. ST60Instruments–Chapter1.Speed
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4ST60InstrumentsServiceManual 83142-1
ST60SpeedPCB details
Input/Output signals
(refertoFigure2.ST60Speedcircuitdiagram)
Rearcase Signal Description
connection
A(Red) BATT+_2 Nominal12VDCsupply
B(Screen) BATT-_2 OV
C(Yellow) STALK_2 Intermittentstreamsof(nominal)12Vpulses
D(Red) BATT+ Nominal12VDCsupply
E(Screen) BATT- OV
F(Yellow) STALK Intermittentstreamsof(nominal)12Vpulses
G(Red) 12V_SPD Approximately11.2VDCout
H(Green) SPD Withtransducerattached,spinningpaddle-wheelproducespulses
approximately11.2VDCinamplitude@5.5Hz/Knot.
J(Screen) OV OV
K(White) TEMP Withtransducerattached,voltagehereisdependanton
temperature. Approximately1.8vat0degreesC.
L(Brown) OVANA OV
Rear case connections to ST60 Speed instrument
D4480-1
S
P
E
E
D
D
E
P
T
H
L
K
J
H
G
ABC
DEF

Part1. ST60Instruments–Chapter1.Speed
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ST60 Instruments Service Manual 83142-1 5
ST60 Speed circuit diagram
D4453-1
Figure 2. ST60 Speed circuit diagram

Part1. ST60Instruments–Chapter1.Speed
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6ST60InstrumentsServiceManual 83142-1
ST60SpeedPCB layout
Taken from Drawing No: 4315-004 Issue: D Date: 01-10-98
D4451-1