JYE Tech DSO 068 User manual

Iron(20W)
1
Solderwire
Multimeter
Screwdriver
AssemblyGuide
Rev. 04
DSO 068OscilloscopeDIY Kit
2
3
4
Flushcutter
5
Tools
Checkpart values&quantitiesagainstpartlist
1
Meterandidentifyresistorvaluesbyohmmeter
Understandallpartpolaritiesandorientations
2
3
GetReady
Tweezers
6
Putleadsthroughmountingfrominstallationside of
PCB.EnsuetheyevenlytouchPCB(picturebelow).
1
SolderattheothersideofPCB.Soldershouldfully
fillandcoversolderingpads.
Avoidbridgeswith
neighberingpads.
Cut unusedleads
flushwithcutter.
2
3
Part List
A. B. C. D. E. F.
BOBBoardInstallation
Assemblythe MainBoard
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
ASSY2ASSY3
ASSY1
Cutleadsshort
underLCD
A.
LayPCBflat.Insertmount-
ingstrips withlongerpins
intoholes.
Labels
B. C. D.
LCDInstallation
Step1
SolderingSkillsandRequirements
Payspecialattentiontopartpolarityatsoldering. Refertophotostothe right.
ForBOBboardsandLCDsolderingrefertophotos atbottom fordetails.
1.
2.Installpartsbytheorderofpartlist. Startfromthebacksideofmainboard.
3.
Performpower-uptests as suggestedinthepartlist.
4.
Completethe steps in"GetReady" andunderstandsolderingrequirements.
5.
Important!UnusedleadsunderLCDmustbecutflushtoavoidshorttoLCDmodule!
+
-
+
-
+
-
E
B
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,C24,C20,
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,2.5 X6mmφ3L1,L4,L5
8550,TO-92 ( E-B-C) 2Q1,Q2
Tact,6X 6X 5mm 1SW12
20MHz2X6mm，φ 1Y1
0.1uF/100V, CBB
1N4148DO-35，
C4
C6
C7,C13,C32
JYE119,UART-USB conv.
JYE118, battery charger
JYE117, On/Off switch
JYE116, step-up convertor
JYE120, neg. P.S. convertor
BOB1（）optional
BOB2（）optional
BOB3optional（）
BOB4
BOB5
DC005,2.1φmmcore J21
1
1
1
1
1
Type/Spec QtySeq.
DIP2.54mm5X2，，
SIP, 2mm, 20X1
SIP, 2mm, 2X1
2
1
2
J4,J5Do notinstall（）
LCD 128X64graphic, 12864-16 1LCD1
Slide switchSS-23D06，
RotaryEnc.,EC11,10mm
3
1
SW1,SW2,SW3
SW4
PCB#:109-06800-00H 1
Catagory
Top(1), bottom(1), stand(1)
switchcaps(3), dialcap(1) 1 set
7-key silicone button pad
2-core header/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: Resistorvaluesareeasily
mis-read. Metercheckingis
stronglysuggested.
BOBBoardsOrientation
48
1Shielding wire, 8cm
5V, passive,9X5.5mmφ1BP1
49
Note:PleaseinstallbytheordergiveninthePartListbelow.
TIP: C3andR32
arenotrequired.
TIP: DonotinstallJ4if batteryistobemountedonbackcover.Insert
thepinsintoprogrammer headertoperformU4andU5programming.
KeepJP2openifBOB3
isinstalled.Otherwise
closeit.
Identifytheholes withlabels
onLCD.Theyshouldgo
withthelongstrip.
PutLCDontostripsasshown.
Solderpinsatcornersfirst.Do
therestafterflatness ensured.
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
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JYETechLtd.
Moreatthereversepage
1
10M,5%, 1/8W R40
50
Continuefollowingassemblyafterthetest.
Keypad
MCU
Test
Signal
Output
Pin1(squarepad)indicated
byarrow
1
Shortwith solder JP9Jumper
Performpower-up
test2asdescribedon
thereversepageafter
allcomponentshave
beeninstalledon
board.
()PCBVersion:H orI
(PartsinhavebeenomittedforPCBversion I”)red
NOTE :This photois forPCBversionH. PCB
versionI is slightlydifferent. Someparts have
beenomittedorchangedtoSMD. Pleaseseethe
partlist. Performanceisnotaffected.

Doublechecktoensurenomissedorcoldsolderorshorts
CloseJP2forthetime being(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
USB powered 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
IsVA normal(+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
USB powered Batterypowered
Batteryvoltageok?IsVBUSmeasuredok?
IsV+measuredok?IsV+measuredok ？
IsVS+measuredok?
Is+5Vmeasuredok?
BOB3installed?
Powergood
CheckBOB3
CheckJP2
Checkbatt.
CheckBOB2
CheckUSB
CheckD4
CheckBOB4
Isvoltage atLCD
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?
Continue to install
partson thefront
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
www.jyetech.com/forum
JP5
AdjustCompensation
Capacitors
Compensationcapacitorscanbe
adjustedusingthebuilt-insignal
generator.Followstepsbelow:
C5
C8
Temporarilyconnecttestsignaloutputto
scopeinputwithapieceofwire
Notenough通电检查
Good通电检查
Too much通电检查
1. Connecttestsignaloutputtoscopeinput
(seephotobelow)andsetSW1toDC.
2. Powerup. Settestsignalto10KHz and
5V. Setscopetimebase to20us.
SetSW&SW3to1V& X2respectively.
Adjusttriggerleveltomakedisplay
stable ifnecessary.ChangeC8toobtain
waveform asthe middle ofphotos left.
3.
Keepsignalfrequence unchangedand
setamplitude to1V. SetSW2& SW3to
0.1VandX5respectively. Makedisplay
stable.Change C5toobtainwaveform
asthe middleofphotosleft.
4.
5. Remove connectionbetweentestsignal
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.
Major JumpersExplained
JP1：
InstallBNCconnectors
andplacesiliconepad.
Capslideswitches.Insert
boardtoconnectorholes.
Holdboardtighttowards
USBendandpushin.
ConnectinputsignalBNC
tomainboardasshown.
Connecttestsignalwith
shieldingwireprovided
Tighttwoscrewsandattach
batt.tocenterofbackcover
Putonbackcover.Tight
thetwoscrews as shown.
Putdialcaponandyou
aredone.
TechSupport:
JYETechLtd.
JP9
Central
conductor
Outter
conductor
Tight
Screw
Tight
Screw
Scopeinput
Test
signal
output
Powering-upTest2
Done
Note: JP9mustbe closed
beforepower-uptest2
Note: KeepJP2open
afterthepower-uptests
QuickWaveformDiaplayTest
Touchprobetipwithafingerto
show introducedmainlinesignal
Thisjumpershouldalwaysbeclosed.JP9：
PowerSupply Options
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.