JYE Tech 13803K User Manual

Soldering Hints
1
Put leads through mounting holes from the side with
part outline. Ensue component evenly touch PCB.
2 Solder leads at the other side. Solder should fully
fill and cover soldering pads.
Avoid bridges between
neighbering pads.
Cut unused leads
3
flush with cutter.
Step 1
Assembly Main Board and LCD board (follow the order as numbered)
1. Resistors
Note:
Always meter resistor
values before soldering
R7, R36 : 180Ω
R8, R12, R13 120Ω :
R1, R14, R16 100KΩ :
R9, R15, R26 1KΩ :
R2 : 1.8MΩ
R10 : 3KΩ
R3 : 200KΩ
R11 : 150Ω
R4 : 2MΩ
R38 : 1.5KΩ
R5 : 20KΩ
R28, R40 : 470Ω
R6 : 300Ω
R37, R39 : 10KΩ
2. HF-Chokes
μ
L1,L3,L4 100 H
:
3. Diodes
Cathode
D1 1N5819
:
D2
: 1N4004
(or 1N4007)
4. Crystal
Y1
: 8MHz
JYE Tech Ltd.
- www.jyetech.com -
DSO 138 Oscilloscope DIY Kit
User Manual
Tools you need
1 4 Screw driver
Iron (20W)
2 Solder wire 5 Flush cutter
Tweezers
3 Multimeter 6
5. USB Socket *
USB mini -B
J4
:
Note:
This connector is
optional.
6. Tact Switches
: 6 X 6 X 5mm
SW4, SW5,
SW6, SW7,
SW8
7. Ceramic Capacitors
μ
:
C1, C9, 0.1 F
C10, C11,
C14, C15,
C16, C17,
C18, C20,
C23
C2 C7, C8 : 120pF
: 330pF
C3
: 3pF
C12, C13 : 22pF
C5
: 1pF
8. LED
Solder positive pole
(the longer lead) to φ3mm, green
:
D3
the square pad
Rev. 04
Applicable models: 13803K, 13804K
Before you start
1
Check part values & quantities against part list
2 Always meter resistor values before soldering
3 Understand all part polarities and orientations
Important !!!
Install all SMD parts before proceeding
to Step1 if you purchased kit 13804K.
9. Pin header (for power)
Face the opening
outward
J9 : 2 Pin
10. Transistors
Q1 : 8550
Q2 : 9014
Attention!
Packages are similar.
Do not mix up!
11. Regulators
U4 : 79L05
U5 : 78L05
Attention!
Packages are similar.
Do not mix up!
12. Capacitor trimmers
C4, C6
:
13. Power inductor
L2 : 1mH/0.5A
14. Electrolytic capacitors
Solder positive pole
C19, C21,
(the longer lead) to
C22, C24,
the square pad
C25, C26
15. Power connector
16. Pin-header (male) *
J5
J6
Note:
These pin-headers are
optional.
17. Pin-header (female)
J7, J8
J3
18. Slide switches
SW1, SW2,
SW3
5 - 30pF
19. BNC connector
Note:
The thicker pins need
to heat up longer to get
good soldering result.
100 μ /1 6V
:
F
J10 : DC005
:
1 X 3 pin
: 1 X 4 pin
:
1 X 2 pin
: 2 X 20 pin
2P3T
:
J1 BNC
:
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