JYE Tech DSO138mini User manual

Iron(20W)
1
Solderwire
Multimeter
Screwdriver
UserManual
Rev.05
DSO138miniOscilloscopeDIYKit
2
3
4
Flushcutter
5
Toolsyouneed
Tweezers
6
TestandAssemblyMainBoard
Step1
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JYETechLtd.
1.Resistors
Alwaysmeter resistor
valuesbefore soldering
because colorbands are
easy tomis-read.
Note:
R1,R13100K
R21.8M
:
:
R3,R15
200K
:
R42M:
R520K
:
R6,R14,R17 300
:
R7,R11180
R8,R12
120
:
:
R9,R10,R16
1.1K
:
D1 Zener,2.0V
2.Diode
:
6X 6X 9mm
12.TactSwitches
:
BTN1, BTN2,
BTN3, BTN4
6.CeramicCapacitors
0.1F μ
:
220pF:
3pF:
C1
1pF [ver. Honly]:
C7
:
C2
C3
C5
J1,J6 2Pin,2.54mm,
rightangled
7.Pinheader
:
Cathode
C4 5-30pF(green)
5.Capacitortrimmers
:
10. Pin-headers(male)
1X 10pin
:
J5
1X 3pin
:
J2
SW1, SW2, SW3 2P3T
9.Slideswitches
:
Checkvalues&quantitiesagainstpartslisted
1
Understandallpartpolaritiesandorientations
2
3
Beforeyoustart
Page1
(Model:13805K)
Applicablefirmware:113-13810-110orlater
8.Electrolyticcapacitors
:
100μ/16VF
Solderpositivepole
(thelongerlead)to
thesquarepad
C10,C11,
C12,C13,
C14
AssemblyAnalogBoard(followthe orderasnumbered)
Step2
1.Checkthemainboard
Beforemountinganypartstothemainboard
UseanUSBcablewithUSB-Microplugtopower
themainboardthroughJ7.
1
2Youshouldseethescopebootsuptoascreen
similartothephotobelow. D1(LED)should
blinkthreetimesduringthebooting.
Applypower
Check
display
1
2
:
1X10pin
J4
:
1X2pinJ8
2.Pin-headers(female)
Attention
Donot solderanypartstotheboardif
youfindproblem.Otherwise warranty
willbevoided.Reportto yourvender
orJYETechforanyproblem found.
L1,L2 100Hμ
3. HF-Chokes
:
Donotinstall J1 if BNC
connectoris tobe used.
Note:
1)Makeasmallringwitha
leadcut-off.
11.Testsignalring
2)Soldertheringtothetwo
holesofJ4(asshownin
thephoto).
Preparea USB cablewithUSB-microconnector
Resistors are all 1/8W.
1X 2pin
:
J3
:
1X3pinJ9
ApplicablePCB:
Main: 109-13800-00I
Analog: 109-13801-00[H, J]
SW4 DPDT
:
4.LED
13. Jumpers
ShortJP2 and JP3with
solder(seephoto at left).
Keep JP4, JP5, JP6 (on
thebottom side)open.
JP1 hasbeen pre-shorted.
Solderpositivepole
(thelongerlead)to
thesquarepad
D2 LED, blue,
dia. 3mm
:
Instructions for optional parts (includingand
) are not giveninthis manual. If youhave purchasedthese partsplease
refer totheir ownmanuals availableat.
BNCprobe, enclosure,battery
charger
www.jyetech.com
1
Please visitforother documentsabout schematics,
troubleshooting, firmware upgrade, mechanical, waveformupload,etc.
www.jyetech.com
2
Notes
TechSupport: www.jyetech.com/forum
Itemsmarkedwith[H] are for analogboardver. H. Items markedwith[J]arefor
analogboardver. J.
3
C6 5-30pF(green)[H] :
2-6pF(blue)[J]
120pF [H]
500pF [J]
[H ] [J]

CalibratingC4&C6
Connectredhookto
test signaloutput
Leaveblackhook
un-connected
InserthookprobetoJ1.Connectthe redhooktothe testsignal
terminalJ4andleave theblackhookun-connected.
1.
Set[SEN1]switchto0.1Vand[SEN2]switchtoX5.
Set[CPL]switchtoACorDC.
2.
Adjusttimebaseto0.2ms.Youshouldsee waveformsimilar
tothatshowninphotos below. Iftraces arenotstable adjust
triggerlevel(the pinktriangle onrightscreenborder)soas
yougeta stable display.
3.
TurnC4(capacitortrimmer)withasmallscrewdriversothat
the waveform displays sharprightangle (photoC).
4.
C4C6
Set[SEN1]switchto1Vand[SEN2]switchtoX1whilekeepallother
settings unchanged.AdjustC6sothatsharprightangle waveform is
displayed.
5.
A Notenough B Toomuch C Good
Page2
Testanalogboard
Step3
1.Checkvoltagesandcontrols
14.HookProbes
Putwirethroughhoodcapandsoldthe
wireontohookterminalasshown.
Matchwirecolorwithhookcolor.
Finishedlook
Attach the main board to the
analog board.Apply5VDC
powerthrough J7.
1
2
3
Setswitch[CPL] toGND, [SEN1]
to 1V, and[SEN2] toX5.
Checkvoltagesatthe pointsas
shown in the photo.
VBUS
V+
AV+
V-
AV-
V1
V2
V3
V4
+5.10V
>3.5V
>3.5V
<-3.5V
<-3.5V
0V
1.05V
2.1V
-1.05V
References
(*)
(*)
(*)Input dependent
V4
V2
V1
V3
AV+
V-
AV-
V+
Placenegative
penatGND
Coupleswitch
(set to GND)
SaveWaveform Press[SEL]&[+]buttonssimultaneously.The currentlydisplayedwaveform
willbe savedtoEEPROM.The existingdata inEEPROMwillbeover-written.
VPosAlignment
Measurements
ON/OFF
Functions Operations
Movecursor toVPosindicator.Holddown[OK]for3seconds.Thenfollowscreenprompts.
DefaultRestore
RecallWaveform
CenterHPos
Center Trigger
Level
Movecursor totimebase.Holddown[OK]buttonfor3secondstoturnONorOFFon-screen
measurementsincludingVmax, Vmin, Vavr, Vpp, Vrms,Freq.,Cycle,Pulsewidth,andDutycycle.
Press[SEL]&[-]buttonssimultaneously. Recalledwaveformisalwaysdisplayed
inHoldstate.
Holddown[+]and[-]buttons simultaneouslyforabout3seconds.
Movecursortothetopbar. Holddown[OK]buttonforabout3seconds.This willmove
thedisplaywindowtothecenter of capturebuffer.
Movecursortotriggerlevelindicator. Holddown[OK]for 3seconds.Thiswillset
thetriggerleveltothemediumvalueofsignalamplitude.
Operations
[SEL]button: Selectparameterto be adjusted.The selected parameterwillbe highlighted.
[+]and[-]button: Adjustthe parameterselected by [SEL]button.
[OK]button: Freeze waveformrefresh(entering HOLDstate). Pressonitagainwillde-freeze.
[CPL]switch: Setcouple to DC,AC, orGND.When GNDisselected the scope inputisdisconnected
fromoutside and connected to ground internally(0Vinput).
[SEN1]/[SEN2]: Adjustsensitivity. The productof[SEN1]and[SEN2]settingsmakesthe
actualsensitivity which isdisplayed atthe screen lower-leftcorner.
MoreOperations
Power supplyvoltage mustnotexceed
8V.
Attention
1.
Allowedmaximumsignalinputvoltage
is50Vpk(100Vpp).
2.
Analogbandwidth
Sensitivityrange
Resolution
Recordlength
Maxrealtimesamplerate
Timebaserange
Maxinputvoltage
Inputimpedance
Powersupply
Currentconsumption
Dimension
Weight
1MSa/s
0--200KHz
10mV/div-5V/div
50Vpk(1Xprobe)
1Mohm/20pF
12bits
1024points
500s/Div-- 10us/Div
3.5V-5VDC
<100mA
85x75x15(mm)
50gram(withoutprobe)
Triggermodes
Triggerpositionrange
Auto,Normal,andSingle
Center(fixed)
Specifications
HOLDRUN/
[OK]:
Parameter
Adjustment
[+] and[-]:
Parameter
Selection
[SEL]:
Trigger
State
TriggerLevel
Indicator
Trigger
Slope
Trigger
Mode
Timebase
(s/div)
Sensitivity
(V/div)
Couple
Vertical
Position
Indicator
Powerinput
Couple
Selection
Sensitivity
Selection1
Sensitivity
Selection2
[CPL]:
[SEN1]: [SEN2]:
Horizontal
Position
Oscilloscope
Mode
SignalInput
DisplayandControls
4Checkslide switchesandpush-
buttonsforcorrect operation.
(*)
(*)
Powerinput
(USB)
Reset (byshorting
thetwopads)
5Calibrate C4 &C6if everything
isfine (see instructionsto the
right).
SendWaveform
Data
Holddown[SEL]buttonfor3secondswillsendwaveformdata intextsvia serialport
J5.The baudrate is 115200. Data formatis8N1.
Triggersources
Ext.triggerthresholds
Ext.triggerinputrange
Internal/External
Low:1.1V,High:2.2V
0V-10V(max)
VBUS
V2 -V4 could have up to
+/-0.2Vvariance depending
on powersupplyvoltage.
Note:
Trigger
Source
TriggerLevel
(internalonly)
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Toggle Test Signal
Amplitude
Movecursor totriggerslopeindicator.Holddown[OK]buttonfor3secondstotoggletestsignal
amplitudebetween3.3Vandabout0.14V.Theamplitudeisindicatedbytoscreentop.
CalibrateAnalog
Gain
Movecursor totriggersourceindicator.Holddown[OK]buttonfor3secondstoenteranaloggain
calibrationmode.Followtheon-screeninstructions.
Ext.TriggerIn
(PB15)
[H] [J]
[Analogboard
ver. Hshown]
[Analog board
ver. Hshown]
[Analogboard
ver. Hshown]