Calibrating C4 & C6
Connect red hook to
test signal output
Leave black hook
un-connected
Insert hook probe to J1. Connect the red hook to the test signal
terminal J4 and leave the black hook un-connected.
1.
Set [SEN1] switch to 0.1V and [SEN2] switch to X5.
Set [CPL] switch to AC or DC.
2.
Adjust timebase to 0.2ms. You should see waveform similar
to that shown in photos below. If traces are not stable adjust
trigger level (the pink triangle on right screen border) so as
you get a stable display.
3.
Turn C4 (capacitor trimmer) with a small screw driver so that
the waveform displays sharp rightangle (photo C).
4.
C4
C6
Set [SEN1] switch to 1V and [SEN2] switch to X1while keep all other
settings unchanged. Adjust C6 so that sharp rightangle waveform is
displayed.
5.
A
–
Not enough
B
–
Too much
C
–
Good
Page 2
Test analog board
Step 3
1. Check voltages and controls
14. Hook Probes
Put wire through hood cap and sold the
wire onto hook terminal as shown.
Match wire color with hook color.
Finished look
Attach the main board to the
analog board. Apply 5V DC
power through J7.
1
2
3
Set switch [CPL] to GND, [SEN1]
to 1V, and [SEN2] to X5.
Check voltages at the points as
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
2.1 V
-1.05V
References
(*)
(*)
(*) Input dependent
V4
V2
V1
V3
AV+
V-
AV-
V+
Place negative
pen at GND
Couple switch
(set to GND)
Save Waveform
Press [SEL] & [+] buttons simultaneously. The currently displayed waveform
will be saved to EEPROM. The existing data in EEPROM will be over-written.
VPos Alignment
Measurements
ON/OFF
Functions
Operations
Move cursor to VPos indicator. Hold down [OK] for 3 seconds. Then follow screen prompts.
Default Restore
Recall Waveform
Center HPos
Center Trigger
Level
Move cursor to timebase. Hold down [OK] button for 3 seconds to turn ON or OFF on-screen
measurements including Vmax, Vmin, Vavr, Vpp, Vrms, Freq., Cycle, Pulse width, and Duty cycle.
Press [SEL] & [-] buttons simultaneously.
Recalled waveform is always displayed
in Hold state.
Hold down [+] and [-] buttons simultaneously for about 3 seconds.
Move cursor to the top bar. Hold down [OK] button for about 3 seconds. This will move
the display window to the center of capture buffer.
Move cursor to trigger level indicator. Hold down [OK] for 3 seconds. This will set
the trigger level to the medium value of signal amplitude.
Operations
[SEL] button:
Select parameter to be adjusted. The selected parameter will be highlighted.
[+] and [-] button:
Adjust the parameter selected by [SEL] button.
[OK] button:
Freeze waveform refresh (entering HOLD state). Press on it again will de-freeze.
[CPL] switch:
Set couple to DC, AC, or GND. When GND is selected the scope input is disconnected
from outside and connected to ground internally (0V input).
[SEN1]/[SEN2] :
Adjust sensitivity. The product of [SEN1] and [SEN2] settings makes the
actual sensitivity which is displayed at the screen lower-left corner.
More Operations
Power supply voltage must not exceed
8V.
Attention
1.
Allowed maximum signal input voltage
is 50Vpk (100Vpp) .
2.
Analog bandwidth
Sensitivity range
Resolution
Record length
Max realtime sample rate
Timebase range
Max input voltage
Input impedance
Power supply
Current consumption
Dimension
Weight
1MSa/s
0 -- 200KHz
10mV/div - 5V/div
50Vpk (1X probe)
1M ohm/20pF
12 bits
1024 points
500s/Div -- 10us/Div
3.5V - 5V DC
< 100mA
85 x 75 x 15 (mm)
50 gram (without probe)
Trigger modes
Trigger position range
Auto, Normal, and Single
Center (fixed)
Specifications
HOLD RUN
/
[OK]:
Parameter
Adjustment
[+] and [-]:
Parameter
Selection
[SEL]:
Trigger
State
Trigger Level
Indicator
Trigger
Slope
Trigger
Mode
Timebase
(s/div)
Sensitivity
(V/div)
Couple
Vertical
Position
Indicator
Power input
Couple
Selection
Sensitivity
Selection 1
Sensitivity
Selection 2
[CPL]:
[SEN1]:
[SEN2]:
Horizontal
Position
Oscilloscope
Mode
Signal Input
Display and Controls
4
Check slide switches and push-
buttons for correct operation.
(*)
(*)
Power input
(USB)
Reset (by shorting
the two pads)
5
Calibrate C4 & C6 if everything
is fine (see instructions to the
right).
Send Waveform
Data
Hold down [SEL] button for 3 seconds will send waveform data in texts via serial port
J5. The baudrate is 115200. Data format is 8N1.
Trigger sources
Ext. trigger thresholds
Ext. trigger input range
Internal/External
Low: 1.1V, High: 2.2V
0V - 10V(max)
VBUS
V2 - V4 could have up to
+/- 0.2V variance depending
on power supply voltage.
Note:
Trigger
Source
Trigger Level
(internal only)
JYETech Ltd.
Tech Support: www.jyetech.com/forum
Toggle Test Signal
Amplitude
Move cursor to trigger slope indicator. Hold down [OK] button for 3 seconds to toggle test signal
amplitude between 3.3V and about 0.14V. The amplitude is indicated by to screen top.
Calibrate Analog
Gain
Move cursor to trigger source indicator. Hold down [OK] button for 3 seconds to enter analog gain
calibration mode. Follow the on-screen instructions.
Ext. Trigger In
(PB15)
[H]
[J]
[Analog board
ver. H shown]
[Analog board
ver. H shown]
[Analog board
ver. H shown]
