JYE Tech DSO 068 User manual

Iron(20W)
1
Solderwire
Multimeter
Screwdriver
AssemblyGuide
Rev.03
DSO068OscilloscopeDIYKit
2
3
4
Flushcutter
5
Tools
Checkpartvalues&quantitiesagainstpartlist
1
Meterandidentifyresistorvaluesbyohmmeter
Understandallpartpolaritiesandorientations
2
3
GetReady
Tweezers
6
Putleadsthroughmountingfrominstallationsideof
PCB.EnsuetheyevenlytouchPCB(picturebelow).
1
SolderattheothersideofPCB.Soldershouldfully
fillandcoversolderingpads.
Avoidbridgeswith
neighberingpads.
Cutunusedleads
flushwithcutter.
2
3
PartList
A. B. C. D. E. F.
BOBBoardInstallation
AssemblytheMainBoard
LED
Neg.P.S.
Conv.
Diode ElectrolyticCap.
Resistor
Reset
USB-UartConv.
Inductor
USBSocket
Volt.Step-upConv.
Main
MCU Transistor
CeramicCap.
CBBCap
Cap.Trimmer
Crystal
LCD
Contrast
Adj.
PowerSwitch
External
P.S.Conn.
Batt.Charger
BackSide SlideSwitch
LCDModule RotaryEncoder
FrontSide
ASSY2 ASSY3
ASSY1
Cutleadsshort
underLCD
A. LayPCBflat.Insertmount-
ingstripswithlongerpins
intoholes.
Labels
B. C. D.
LCDInstallation
Step1
SolderingSkillsandRequirements
Payspecialattentiontopartpolarityatsoldering.Refertophotostotheright.
ForBOBboardsandLCDsolderingrefertophotosatbottomfordetails.
1.
2.Installpartsbytheorderofpartlist.Startfromthebacksideofmainboard.
3.
Performpower-uptestsassuggestedinthepartlist.
4.
Completethestepsin"GetReady"andunderstandsolderingrequirements.
5.
Important!UnusedleadsunderLCDmustbecutflushtoavoidshorttoLCDmodule!
+
-
+
-
+
-
EB
C
JYE116 JYE117 JYE118 JYE119 JYE120
Diode LED Electrolyticcap. Transistor
Identify
Polarity&
Orientation
）Pin1indicatedbyarrow 510K5%1/8W，，
200K ，，1%1/8W
2M ，，1%1/8W
20K ，，
1
%1/8W
300 ，，1%1/8W
180 ，，1%1/8W
120,1%,1/8W
3.3K ，，1%1/8W
470 ，，1%1/8W
10K1，，%1/8W
1K5
，，%1/8W
2
2
1
1
1
3
1
2
3
3
5
R1,R27
R3
R2,R4
R5
R6
R7
R8,R12,R21
R10,R22
R11,R31,R33
R9,R20,R30
R24,R25,R26,R28,R29
300pF,ceramicdisk
3pF,ceramicdisk
1pF,ceramicdisk
120pF,ceramicdisk
0.1uF,ceramicdisk
100uF,16V, φ6X7mm
10uF,16V,4φX5mm
15pF,ceramicdisk 1
12 C9,C10,C11,C12,C14,
C15,C16,C18,C20,C24,
C25,C26
2C2,C23
C1
1
1
3
5
1
2
C17,C27,C28,C29,C30
C19
C21,C22
LED,3mmφ,red D11
2 D2,D3
USBsocket,BtypeMiNi- 1J1
2pins,2.54mm 1J6
100uH,2.5X6mmφ3L1,L4,L5
8550,TO-92(E-B-C) 2Q1,Q2
Tact,6X6X5mm 1SW12
20MHz，φ2X6mm 1Y1
0.1uF/100V,CBB
1N4148DO-35，
C4
C6
C7,C13,C32
JYE119,UART-USBconv.
JYE118,batterycharger
JYE117,On/Offswitch
JYE116,step-upconvertor
JYE120,neg.P.S.convertor
BOB1 （） optional
BOB2 （） optional
BOB3optional （）
BOB4
BOB5
DC005,2.1
φmmcore J21
1
1
1
1
1
Type/Spec QtySeq.
DIP2.54mm5X2，，
SIP,2mm,20X1
SIP,2mm,2X1
2
1
2
J4,J5Donotinstall
（）
LCD 128X64graphic,12864-16 1LCD1
SlideswitchSS-23D06，
RotaryEnc.,EC11,10mm 3 1SW1,SW2,SW3 SW4
PCB#:109-06800-00H 1
Catagory
Top(1),bottom(1),stand(1)
switchcaps(3),dialcap(1) 1set
7-keysiliconebuttonpad
2-coreheader/wire,10cm
2.3*8mm,selftapping
BNCBNC-KY，1
2
1
4
2
5
6
4
7
9
8
10
11
12
13
14
15
16
3
28
26
22
23
24
25
33
32
27
29
17
20
30
18
31
21
19
34
39
38
37
35
36
45
42
43
44
40
41
46
47
1
BOBsandJumpers
（） BOB4 （） BOB3 （） BOB2 （） BOB1 （） BOB5
Battery
Conn.
Extention
Ports
Buzzer
A/DConverter
KeepJP1openifBOB2
isinstalled.Otherwise
closeit.
TIP: Resistorvaluesareeasilymis-read.
Metercheckingisstronglysuggested.
BOBBoardsOrientation
48
1
Shieldingwire,8cm
5V,passive,9X5.5mmφ1BP1
49
Note:PleaseinstallbytheordergiveninthePartListbelow.
TIP: C3andR32
arenotrequired.
TIP: DonotinstallJ4ifbatteryistobemountedonbackcover.Insert
thepinsintoprogrammerheadertoperformU4andU5programming.
KeepJP2openifBOB3
isinstalled.Otherwise
closeit.
Identifytheholeswithlabels
onLCD.Theyshouldgo
withthelongstrip.
PutLCDontostripsasshown.
Solderpinsatcornersfirst.Do
therestafterflatnessensured.
TurnLCDandmainboardover.
Completesolderingfollowing
sameproceduresasinC.
Usethesmallacrylic
toolprovided. Applysoldertoone pin. Applysoldertothe correspondingpinon
mainPCB.
PutBOBtoplace
andalignpads. MaintainBOBupright andfixitbymelting
thesolder.
Finishtherestpins.
Designator/Location
MainPCB
Resistor
Diode
Inductor
Crystal
Connector
Switch
Capacitor
Buzzer
Diode
Transistor
Connector
Electro.
Capacitor
Connector
BOB
Board
Performpower-uptest1asdescribedonthereversepage.
Switch
Switch
Pin
Strip
Pinstrip
Enclosure
Switch
Wire
Wire
Connector
Screw
-www.jyetech.com -
JYETechLtd.
Moreatthereversepage
1
10M,5%,1/8W R40
50
Continuefollowingassemblyafterthetest.
Keypad
MCU
Test
Signal
Output
Pin1(squarepad)indicated
byarrow
1
Shortwithsolder JP9
Jumper
Performpower-up
test2asdescribedon
thereversepageafter
allcomponentshave
beeninstalledon
board.
() PCBVersion:H

Doublechecktoensurenomissedorcoldsolderorshorts
CloseJP2forthetimebeing(evenBOB3isinstalled)
KeepJP3JP4open、
CloseJP1ifnoBOB2 KeepJP1open
MakesureBOB2in
Powerup.Checkvoltage
at+5Vtestpoint.Isit+5V?
Poweroff.CloseJP4
Powerupandcheck+5V
again.Isitstill+5V?
LCDbacklighton ？
Adjustcontrast.Canyou
seedisplay?
Pressbuttons.Doyousee
reactiononscreen?
Setcursortotimebase.Turn
[ADJ]dial.Doyousee
timebasechange?
Powering-upTest1
Yes
No
USBpowered Batterypowered
MakesureBOB4andBOB5havebeeninstalled
Follow"NoPower"
flowcharttocheck
Checkforsolderingmistakes.
Wrongpolarity,shorts,etc.
Follow"LCDDark"
flowcharttocheck
CheckU5andsoldering
ofbuttonrelatedpins
Follow"Nodisplay"
flowcharttocheck
CheckU5andsoldering
ofrotaryencoderpins
V4
V1
V2
V3
AV-
AV+
V-
+5V
VT
VB
SYSCLK
VA
Contrast
Adj.
JP4
JP3
JP1
JP2
JP6
USB
Connector
(About+5V)
SignalInput
Referencepointfor
voltagemeasurement
*
Allvoltagesaremeasuredwithvoltmeter's(-)poleatreferencepoint(indicated
inphotobelow)and(+)poleatpointsofmeasurement.
1.
2. *
Notes:
VBUS
V+
(Volt.range:2-5V)
Battery
Connector VS+
WithoutBOB3VS+=V+(duetoJP2closed)：
WithBOB3VS+dependsonstateofBOB3(OnorOff)：
LCDpin18
IsV-normal(-5V)? CheckBOB5andC27
CheckL1,C28,C11,andC12
CheckL5,C16,andC17
SetSW1,SW2,SW3toGND,
10mV,andX1respectively
IsVAnormal(+5V)?
CheckL4,C29,C9,andC10
IsV2measured0V？CheckSW1,SW2,andR1
IsV3measured0V？U1mayhavebeendamaged
isV4measured~1.6V？CheckSW3,R9,R10,R11
AdjustVPOS.Canyousee
tracedisplayed? Follow"NoTrace"
flowcharttocheck
2
1
InstallBatter&
Enclosure
USBpowered Batterypowered
Batteryvoltageok?IsVBUSmeasuredok?
IsV+measuredok?IsV+measuredok ？
IsVS+measuredok?
Is+5Vmeasuredok?
BOB3installed?
Powergood
CheckBOB3
CheckJP2
Checkbatt.
CheckBOB2
CheckUSB
CheckD4
CheckBOB4
IsvoltageatLCD
pin195V? Checkrelated
connections
ShortCandEofQ2.
DoesLCDlightup?
CheckQ2,R30and
connectionwithU5
PossibleLCD
issue
PressSW12.DoesLEDblinkasitshouldbe?
U4andLCDconnectiongood?
LCDdefective
Fixbadconnections
CheckY1,C21,C22
Re-programU4
VoltatU4pin20toolow?
IscontrastchangeablebyPOT1? VEE.atLCDpin18negative?
CheckPOT1andrelatedCheckallconnectionsbetween
U4andLCDforopensorshorts.
VTandVBnormal? U3damaged
ConnectionbetweenU4
pin17andU3pin12good?
U3hasbadsoldering
orhasbeendamaged
Checkout
thecause
Ensureallanalogvoltages
arenormal(seephoto)
PowerUpTests
Troubleshooting
A. B. C. D.
E. F. G. H.
PressSW12.DoyouseeLED
blinkonce(ifbootloader
installed)andthentwice? CheckY1C21C22、、
LEDreversed?
U4pin20voltagelow?
Continuetoinstall
partsonthefront
PoweredbyUSB:V+VBUS-0.7V≈
PoweredbyBatt.:V+VBAT≈
（）+5V （）-5V （）+5V
（）-5V
（）0V
*
（）0V
*
（）~1.6V
（）0.6V
（）2.6V
*
（）0V
（）+5V
（）About-5V
(Batteryvoltage)
VBAT
（）2.5V
V5
（）~1.6V
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JP5
AdjustCompensation
Capacitors
Compensationcapacitorscanbe
adjustedusingthebuilt-insignal
generator.Followstepsbelow:
C5
C8
Temporarilyconnecttestsignaloutputto
scopeinputwithapieceofwire
Notenough
通电检查
Good
通电检查
Toomuch
通电检查
1. Connecttestsignaloutputtoscopeinput
(seephotobelow)andsetSW1toDC.
2. Powerup.Settestsignalto10KHzand
5V.Setscopetimebaseto20us.
SetSW&SW3to1V&X2respectively.
Adjusttriggerleveltomakedisplay
stableifnecessary.ChangeC8toobtain
waveformasthemiddleofphotosleft.
3.
Keepsignalfrequenceunchangedand
setamplitudeto1V.SetSW2&SW3to
0.1VandX5respectively.Makedisplay
stable.ChangeC5toobtainwaveform
asthemiddleofphotosleft.
4.
5. Removeconnectionbetweentestsignal
outputandscopeinput.Adjustmentis
done.
JP7 JP8
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Thisisby-passofchargerBOB2.Ifbattery
isnotused(i.e.noBOB2)keepJP1closed.
Thisisby-passofswitchBOB3.IfBOB3
isnotusedJP2shouldbeclosed.Inordertofocus
onthemaincircuitJP2canbetemporarilyclosed
atpower-uptestevenBOB3isinstalled.Keepit
openafterthetest.
JP2：
Thisisby-passofstep-upconverterBOB4.
UsuallyJP3shouldbekeptopen.
JP3：
Thisistheconnectingpointofpowersupply
totherestcircuits.ForsafetyJP4shouldonlybe
closedafterpowersupplyistestedgood.
JP4：
Step2 Step3 Step4
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
IsAV-normal(-5V)?
IsAV+normal(+5V)?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
NoPower LCDDark
NoDisplay
NoTrace
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
NoNo
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Voltageswith""aremeasuredwhenSW1(couple)isplacedatGNDposition.
MajorJumpersExplained
JP1：
InstallBNCconnectors
andplacesiliconepad. Capslideswitches.Insert boardtoconnectorholes. Holdboardtighttowards USBendandpushin. ConnectinputsignalBNC tomainboardasshown.
Connecttestsignalwith
shieldingwireprovided Tighttwoscrewsandattach batt.tocenterofbackcover Putonbackcover.Tight thetwoscrewsasshown. Putdialcaponandyou aredone.
TechSupport:
JYETechLtd.
JP9
Central
conductor
Outter
conductor Tight
Screw
Tight
Screw
Scopeinput
Test
signal
output
Powering-upTest2
Done
Note: JP9mustbeclosed
beforepower-uptest2
TIP:CloseJP7toenable
buzzer.ItbeepsasLEDblinks
Note: KeepJP2open
afterthepower-uptests
QuickWaveformDiaplayTest
Touchprobetipwithafingerto
showintroducedmainlinesignal
Thisjumpershouldalwaysbeclosed.JP9：
PowerSupplyOptions
Source BOB2 JP1 Remarks
USB Yes Open
No Close
Int.Batt. Yes Open
Ext.Batt.
(J2) Yes Open CloseJP5
Ext.5V
(J2) Yes Open
No Close InstallD5(D5
isnotprovided)
Note: Donotsimultaneouslyconnect
externalandinternalbatteries.