HardLabs

CCFL2LED

mijuc·CCFL2LED

CCFL2LED PCB layout, top view — open source board by mijuc

About the CCFL2LED PCB

CCFL2LED is an open source PCB design by mijuc, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 55 × 90 mm, with 57 components from 37 distinct parts.

Other key parts include the PT4115, SK12D07VG5, SN74LVC1G14DBV, AP62201WU-7 and C49208506. By type, the board carries 28 resistors, 9 capacitors, 7 ICs, 3 connectors, 3 diodes and 3 inductors.

It belongs with the displays & leds and power & battery designs in this gallery.

From the project

Hi! I'm working on the R&D side of the Поново project. Through our initiative, where we upcycle old electronic devices in exchange for tree seedlings, we’ve noticed that LCD monitors are among the most common items ending up in landfills — and in our repair center as well.

Hi! I'm working on the R&D side of the Поново project. Through our initiative, where we upcycle old electronic devices in exchange for tree seedlings, we’ve noticed that LCD monitors are among the most common items ending up in landfills — and in our repair center as well.

Interestingly, the majority of these monitors share the same issue: the backlight. Most of them use CCFL (cold cathode fluorescent lamp) backlighting, which is often partially or completely non-functional.

CCFL2LED, from the project README
From the project README

Main components on the CCFL2LED

PT4115SK12D07VG5SN74LVC1G14DBVAP62201WU-7C49208506CH224K

CCFL2LED bill of materials (BOM)

57 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
PT4115
U1, U2
1
SK12D07VG5
SK12D07VG4
U4
1
SN74LVC1G14DBV
U5
1
AP62201WU-7
U6
1
C49208506
LM2596 Modul
U7
1
CH224K
U9
1
APM4953
Q2
1
2N7002
Q3
1
External supply
J1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J2
1
C3010534
Jack-DC
J3
1
CFS12V6T2R0
F2
1
LED_0805
LED1
2
1N5819WS
D1, D2
1
SD12CT1G
hongjiacheng
D3
2
33UH
33uH
L1, L3
1
4U7H
4u7H
L2
2
100NF
100nF
Samsung Electro-Mechanics
C1, C4
2
100UF
100uF
C2, C7
1
100PF
100pF
Samsung Electro-Mechanics
C3
Show 17 more
QtyPartRefs
2
22UF
22uF
Samsung Electro-Mechanics
C5, C6
1
1UF
1uF
Samsung Electro-Mechanics
C8
1
10UF
10uF
Samsung Electro-Mechanics
C11
5
1K
R1, R5, R22, R25, R28
2
5K1
R2, R7
2
0.33R
R3, R13
2
0.2R
R4, R14
2
10K
R6, R27
2
0.18R
R8, R15
2
0.15R
R9, R16
2
0.13R
R10, R17
2
0.11R
R11, R18
2
0.1R
R12, R19
1
52K3
R20
2
100K
R21, R23
1
C17415
~10R
R24
1
C2907288
0R
R26

CCFL2LED design files

The KiCad project lives in the mijuc/CCFL2LED repository on GitHub; these links point at the commit this page was built from.

CCFL2LED: common questions

How big is the CCFL2LED PCB?

The CCFL2LED measures 55 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CCFL2LED?

57 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the CCFL2LED design files?

From the mijuc/CCFL2LED repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the CCFL2LED design in my own project?

Yes, under the terms of its GPL-3.0 license, which mijuc chose for the repository.

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