JYE Tech 13803K User manual

Iron(20W)
1
Solderwire
Multimeter
Screwdriver
UserManual
Rev. 04
DSO138OscilloscopeDIYKit
2
3
4
Flushcutter
5
Toolsyouneed
Tweezers
6
AssemblyMainBoardandLCDboard(followthe orderasnumbered)
Step1
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1.Resistors
Alwaysmeter resistor
valuesbefore soldering
Note:
R1,R14,R16100K
R21.8M
:
:
R3200K:
R42M:
R520K:
R6300:
R7,R36180
R8,R12,R13
120
:
:
R9,R15,R26
1K
:
R103K
:
R381.5K
:
R28,R40
470
:
R37,R39
10K
:
L1,L3,L4 100Hμ
2.HF-Chokes
:
D1 1N5819
3.Diodes
:
D2 1N4004
:
(or1N4007)
Y1 8MHz
4.Crystal
:
J4 USBmini -B
5.USBSocket*
:
6X 6X 5mm
6.TactSwitches
:
SW4, SW5,
SW6, SW7,
SW8
7.CeramicCapacitors
0.1F μ
:
330pF:
3pF:
C1,C9,
C10,C11,
C14,C15,
C16,C17,
C18,C20,
C23
1pF:
C7,C8
120pF
:
C12,C13
22pF
:
C2
C3
C5
D3
8.LED
:
φ3mm,green
Solderpositivepole
(thelongerlead)to
thesquarepad
J9 2Pin
9.Pinheader(forpower)
:
Facetheopening
outward
8550
10.Transistors
:
Q1
9014
:
Q2
Cathode
79L05
11.Regulators
:
U4
78L05
:
U5
C4, C6 5-30pF
12.Capacitortrimmers
:
L2 1mH/0.5A
13.Powerinductor
:
14. Electrolyticcapacitors
:
100μ/16VF
Solderpositivepole
(thelongerlead)to
thesquarepad
C19,C21,
C22,C24,
C25,C26
DC005
15. Powerconnector
:
J10
16. Pin-header(male)*
1X 3pin
:
J5 1X 4pin
:
J6
17.Pin-header(female)
:
1X2pin
J7,J8
:
2X20pin
J3
SW1, SW2,
SW3 2P3T
18.Slideswitches
:
J1 BNC
19. BNCconnector
:
Putleadsthroughmountingholesfromthe side with
partoutline.Ensuecomponent evenlytouchPCB.
1
Solderleadsattheotherside.Soldershouldfully
fillandcoversolderingpads.
Avoidbridgesbetween
neighberingpads.
Cut unusedleads
flushwithcutter.
2
3
SolderingHints
Checkpart values&quantitiesagainstpartlist
1
Alwaysmeterresistorvaluesbeforesoldering
Understandallpartpolaritiesandorientations
2
3
Beforeyoustart
Page1
Packagesaresimilar.
Donotmixup!
Attention!
Packagesaresimilar.
Donotmixup!
Attention!
The thicker pins need
toheat uplonger toget
good solderingresult.
Note:
R11150
:
Thesepin-headersare
optional.
Note:
Applicablemodels:13803K,13804K
InstallallSMDpartsbeforeproceeding
toStep1ifyoupurchasedkit13804K.
Important!!!
This connectoris
optional.
Note:

1
C.Verify
Connectpowersupplyagain.YoushouldseeLCD
lightsupandoscilloscopepaneldisplayed.
2Pressvariousbuttonsandmoveswitchestoverify
theirfunctions.
1)Makeasmallringwitha
leadcut-off.
20.Testsignalring
2X 20pin
22.LCDBoard
:
J1
1X 2pin
:
J2, J3
2)Soldertheringtothetwo
holesofJ2(asshownin
thephoto).
21.JP3
ShortJP3 with solder Note: Installtotheside
oppositeto LCD panel.
TestandUse
Step2
NOTE:Youneeda 9VDCpowersupply(atleast200mAcapacity)
torunthescope.This powersupplyis notincludedinthe kit.
1
A.Checkvoltages
2
3
Apply9VpowertoJ10(orJ9).
2CheckvoltageatTP22.Itshouldbearound+3.3V.
3IfvoltageatTP22isgooddisconnectpower. ShortJP4
withsolder.permanently 1
B.AttachLCDboard
PlugLCDboardintothefemaleheadersJ3, J7, andJ8
onthemainboard. 1
A.Use
AttachprobeclipstoJ1.
2Touchtheredclipwithyourfinger.Doyouseesignal
from yourfinger?
1
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Troubleshooting
IsvoltageatV+
good? Checkpower
supply
IsR36valuecorrect
andsolderedgood?
Doyougetabout3V
betweenJ1pin16&
18onLCDboard?
FixR36
LCDDark
No
No
Yes
Yes
(Nobacklight)
No
Yes
CheckR36and
poweragain
CheckLCD
board
PressSW8. DoesLEDblink? CheckY1, C12, C13
Check LEDinstallation
Check +3.3Vvoltage
Check J3 soldering for
possible opensorshorts
NoDisplay
Yes
No
Check J1 soldering on LCD
board forpossibleopens
orshorts(useTestMode)
2
8.60V
9.39V
8.34V
3.3V
-1.39V
2.16V
0.81V
6.43V
0.19V
5.02V
3.3V
4.99V
-5.0V
-8.08V
-8.11V
1.66V0V
*
*
**
*
*
*
**
**
Voltage
References
(InputVoltage)
*:Thesevoltages areinputvoltagedependent.Thevalues
shownweremeasuredwheninputvoltagewas 9.39V.
**:Thesevoltages aremeasuredwhenCPLswitch(SW1)
is settoGNDposition.
NOTES:
Placethenegative penofvolt-meter
heretodovoltagemeasurements.
Theassemblyshouldlooklikethis
afteryouhavefinishedallparts
ShortJP4 ifithasnotbeen
done. SeeStep 2 above.
CheckU2B,U2Cand
relatedpartsaround
thesetwoamplifiers
No
SetCPLswitchtoGND
andmeasure V1andV2.
Aretheycorrect?
CheckR12andC8
Visitforumfordetailed
troubleshootingguide
ArethevaluesofAV+and
AV-correct?
NoTrace
Yes
No
Yes
Thevoltagesinthephotoareforreferenceonly.
Thevoltagesonyourboardcouldbedifferent.
Buttheyshouldbeclosetothevaluesshown.
NOTE 1:
www.jyetech.com/forum
TechSupport:
Trigger”LED blinkingtwice
indicatesbooting-upisgood.
Page2
TestMode
Whatit isandhowitworks
TestMode isused to find outpossible opens(forallportpins)and shorts
(forpinsPB0 -15 and PC13-15).When entered itfirstchecksPBand PC
pinswith specialpatternsto find outpossibleshorts. Iffound LEDwillbe
fastblinking. Otherwise, itgenerate 3.3Vand 0Valternatively ateach port
pins(PA, PB, PCand PD)in cycle ofabout4 seconds.These signalscan be
used to check foropens.
Howtouse
Hold down SW4 and pressRESETto enterTestMode.
Ifyou see LEDfastblinking thatmeansthere are shortson PBorPCpins.
You need to find outthe shortsfirst.
Ifyou see LEDslowly blinking use avolt-meterto check each pin related
connectionsthataresuspected open. When you don’tsee voltage change
ata spotwhich issupposed being connected to a portpin there may be
open between thespotand theportpin.
1.
2.
3.
PIN1
MakesureU1andLED working
(youseeLEDblinkstwiceatpressing
RESET)beforeusingTestMode.
NOTE 3:
LED willbeblinkingconstantlyifMCU
(U1)cannotdetectvalidLCD controller.
CheckLCD pin-headersoldering.
NOTE 2:

HOLDRUN/
Connectors
forPowerSupply HOLDRUN/HOLDRUN/
TriggerLevel
Readout
Horizontal
Position
Oscilloscope
Mode
Connector
forProbe
Couple
Selection HOLDRUN/
Sensitivity
Selection1
Sensitivity
Selection2
Vertical
Position
Indicator
Sensitivity
Couple
Timebase
Trigger
Mode
Trigger
Slope Trigged”
Indicator
Trigger
Level
Indicator
Parameter
Selection
Parameter
Adjustment
Reset
Button
[+] or[-]:
[SEL]:
[OK]:
[CPL]:
[SEN1]:
[SEN2]:
HowtoUse
DisplayandControls
Connections
PowerSupply: ConnectDCpowersupply toJ9 orJ10.The power
supply voltage mustbe in the range of8 -12V.
Probe: Connectprobe toJ1.
Powersupplyvoltage mustnotexceed
12V.Otherwise U5willgethot.
Attention
1.
Allowedmaximum signalinputvoltage
is 50Vpk(100Vpp)withthe clipprobe.
2.
Operations
Presson[SEL]button: Selectparameterto be adjusted.The selected parameterwillbe highlighted.
Presson[+]or[-]button: Adjustthe parameterselected by [SEL]button.
Presson[OK]button: Freeze waveformrefresh(entering HOLDstate). Presson itagainwillde-freeze.
Change[CPL]switch: Setcouple to DC,AC, orGND.When GNDisselected the scope inputisisolated frominput
signaland connected to ground (0Vinput).
Change[SEN1]or[SEN2]switch: Adjustsensitivity. The productof[SEN1]and[SEN2]settingsmakesthe
actualsensitivity which isdisplayed atthe lower-leftcornerofthe panel.
Presson[Reset]button: Performasystemresetand re-bootsthe oscillscope.
0VLineAlignment
Sometimesyoumay find the 0Vline (the trace corresponding to 0Vinputvoltage)doesnotmatch withtheVPOS
indicatoratthe screenleftborder.Thiscan easily be fixed by performing the 0Vline alignment”function. First,
setthe couple switch [CPL]to GNDposition.Then presson [SEL]button to makeVPOS indicatorhighlighed and
hold down[OK]button forabout2 seconds.You willsetthe trace aligned to VPOSindicatorwhen yourelease
[OK]button.You may see some residue mismatch remainsatthe highestsensitivity settings.Thisisnormal.
ProbeCalibration
Because there isalwayssome capacitance between scope inputand
groundprobe needsto be calibratedto achieve bettermeasurement
resultsforhigh frequency signals.Thiscanbe done with the help of
the built-in testsignal.Todo thisplease followthe stepsbelow.
Connectredclipto
test signaloutput
Leaveblackclip
un-connected
Connectthe redcliptothetestsignalterminalandleave the
blackclipun-connected(see photoatright).
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.
C4
C6
Set[SEN1]switchto1Vand[SEN2]switchtoX1whilekeepallother
settings unchanged.AdjustC6sothatsharprightangle waveform is
displayed.
5.
A –Notenough B –Toomuch C –Good
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
9VDC(8 –12V)
~120mA
117x76x15mm
70gram(withoutprobe)
Triggermodes
Triggerpositionrange Auto,Normal,andSingle 50%
Specifications
WaveformSave/Recall
Press[SEL]&[+]simultaneously:Savecurrentlydisplayedwaveformtonon-volatilememory.
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Tel.[phone]
TriggersandTheirModes
Triggers are events thatindicate signalvoltageacrossing
a setlevel(i.e.triggerlevel)alonga specifieddirection
(i.e. triggerslope,risingorfalling). Oscilloscopeuses
triggers as reference pointsintimeforstable waveform
displayandmeasurements.
Inautomode oscilloscope willperform displayrefreshno
mattertriggershappenornot. Whentriggers aredetected
waveformdisplaywillbedisplayedwithreference to
triggerpoints.Otherwise,displaywaveform atramdom
referencepoints.
AutoMode
Innormalmode oscilloscope willonlyperformdisplay
refreshwhentherearetriggers. Ifnotriggers happen
waveformdisplaywillstayunchanged.
NormalMode
Singlemode is thesame asnormalmode exceptthat
oscilloscopewillenterHOLDstate aftera triggerhas been
detectedandwaveformdisplayhas beenupdated.
SingleMode
Normalandsinglemodes are usefulforcapturingsparse
orsinglewaveform.
Selection
(s/div)
(V/div)
TechSupport: www.jyetech.com/forum
Page3
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JYETechLtd.
TurnOn/Off Readouts
Press[SEL]sothattimebaseishighlighted.Holddown[OK]buttonforabout2seconds.This willturn
on/offmeasurementreadouts.
Press[SEL]&[-]simultaneously:Recallsavedwaveform

Page4
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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
83V .
*
AC
01V .
1V
GND
X1
X2
X5
10mV
DC
USESWDDE BUG
MODEON LY
V1
V2
V3
AIN
V-
TLVL
DC9V
-
+
AnalogChannel
USB
Uart
PowerSupply
-
+
Buttons SWDPort
LCDModuleConnector
MCU
JYETech Ltd .
WWWJ.YETECH.COM
jyetek @ gmail.com
Notes :
Partvaluesusedcould be different to
thevaluesshownPlea .
serefertopart
list .
1 .
2 .
Partsindashlineboxes - are SMD devices.
TestSignalTerminal
33V .
5V
86V .
08V .
-. 14V
64V .
86V .
*
*
*
02V .
*
-. 81V
*
- 5V
*
93V .
*
Thesevoltagesarepowervolt agedependentThe .
valuesshownweremeasuredat
93Vpowervoltage ..
*
Caution :
Powersupplyvoltagecan
notbehigherthan12V .
0V
16V .
** **
**
Thesevoltageswer emeasured
whenSW1isatGND
position.
CPL
SEN1
SEN2
Trigger
Level
OK
+
-
SEL
VGEN
IM0
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
ADCIN VSENSEL2
VSENSEL1
CPLSEL
LCD_nRD
LCD_nRESET
LCD_nCS
LCD_RS
LCD_nWR
BTN2
BTN1
BTN3
BTN4
TRIG
RX1
TX1
TX1
RX1
USBDM
USBDP
USBDM
USBDP
SWCLK
SWDIO
SWDIO
SWCLK
LCD_nWR
DB1
LCD_RS
DB7
LEDK4-
LCD_nRD
DB3
DB5
DB0
IM3
LEDA-
DB6
DB2
LCD_nRESET
DB4
LCD_nCS
LEDK2-
LEDK3-
LEDK1-
TESTSIG
VGEN
BTN4
V-MON
TESTSIG
VSENSEL1
VSENSEL2
CPLSEL
LED
BTN3
BTN2
BTN1
LED
TL_PWM
V-MON
AV-
AV+
AV+
AV+
+3.3V
+.33V
V+
AV-
V+
+3.3V
+5V
+.33V
AV+
+3.3V +.33V
+.33V
AV-
AV-
AV-
AV-
AV-
V+
+3.3V
+.33V
+.33V
AV+
AV+
AV+
AV+
AV+
+3.3V
+.33V
SW8
R1 100K
TP2
TP24
C14
0.1u
C12 22pF
TP6
C7
120pF
TP12
C8
120pF
+ C21
100uF
J61
2
3
4
C10
0.1u
JP2
TP13
R16
100K
J5
1
2
3
R9 1K
U1
STM32F103Cx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
VBAT
PC13/TEMPERR/TC
PC14/OSC32_IN
PC15/OSC32_OUT
PD0/OSC_IN
PD1/OSC_OUT
nRST
VSSA
VDDA
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB10
PB11
VSS_1
VDD_1
PB12
PB13
PB14
PB15
PA8
PA9
PA10
PA11
PA12
PA13
VSS_2
VDD_2
PA14
PA15
PB3
PB4
PB5
PB6
PB7
BOOT0
PB8
PB9
VSS_3
VDD_3
R41 10K
J10
2
3
1
TP31
J7
1
2
L2
1mH/1A
C9
0.1u
R42 1K
J8
1
2
R11
TP28
D1
1N5819
12
R23 10K
TP29
Q2
9014
2
SW4
+ C19
100uF
R18 3.3K
TP30
U4
79L05/TO92
2 3
IN OUT
C11
0.1u
TP21
JP5
SW3A
2
1
3
4
R21 3.3K
SW1A
2
1
3
4
C23
0.1u
U5
LM78L05/T92
3
2
1
VIN
GND
VOUT
J9
1
2
Q1
8550
1 3
TP20
J1
BNC
J2 1
2
+
-
U2B
TL084/SO
5
67
+
-
U2C
TL084/SO
10
98
SW2A
2
1
3
4R7
180
R311.5K
+
C25
100uF
TP3
SW6
TP5
R4 2M1%
R38
1.5K
+
C24
100uF
R35 10K
JP6
D2
1N4004
R26 1K
R32 1K
TP1
D3
TP4
TP33
C3 3pF
+
-
U2D
TL084/SO
12
13 14
R33 1K
TP26
R8
120
C18
0.1u
C2 220pF
JP3
R24 3.3K
C6
30pF
R34
10K
TP23
R28 470
R30 22
TP10
U3
LM1117-3.3/TO263
1
3 2
4
GND
VIN VOUT
VOUT
R40 470
JP4
C20
0.1u
L3
100uH
R2 1.8M1%
SW1B
6
5
7
8
C5 1pF
R37
10K
R14 100K
R17 10K
TP16
J4 USB_miniB_1
2
3
4
5
VBUS
D-
D+
ID
GND
R36
180
R13
120
R19
1.5K
TP22
R3
200K 1%
TP9
R39
10K
R29 22
R6
300
Y1
8MHZ
+ C26
100uF
TP25
TP17
+ C22
100uF
SW3B
6
5
7
8
L4100uH
C4
30pF
JP1
TP7
TP14
R25
1.5K
R5
20K 1%
SW2B
6
5
7
8
TP27
R12
120
R20 10K
+
-
U2A
TL084/SO
3
21
C16
0.1u
TP15
R10 3K
C1
0.1u
L1
100uH
R15
1K
SW5
TP8
R22
1.5K
C17
0.1u
J3
LCDHEADER
1 2
3 4
5 6
7 8
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
R27 1K
C15
0.1u
TP11
TP32
SW7
C13
22pF