How to rework cloned Lexia 3 as the original
Here’s a post for the purists of the PSA XS EVOLUTION ACTIA interface (also called Lexia 3 cable)!
Edit your Lexia 3 interface to make it equivalent to an original.
I do not will detail all the references of the components to be mounted on a clone or replace
(resistors, capacitors and other IC), many of them are already known (full topic on
French forum …) or easily identifiable with the « Marking code ».
Let’s start with the photos of a clone interface « made in china » to correct quality welds and
good components placement. Interface that is not a « FULL CHIPs », as you can see.
Circled in red, the locations to be equipped or components that are replaced:
After an order with RS and Mouser:
We start by removing components « non-original » and clean (Lead free flux remover) PCB, and we get this:
we put in place new components then are welded
Once all components are in place and the two new PCB cleaned by LFFR, here’s what we get:
The rendering is fairly obvious, but it’s even more impressive on a good quality « FULL CHIPS », without printing !!!
Small technical explanation of the three components of the USB input of the microprocessor PCB; replaced on the clone interface of Chinese by capacitors and
0 ohm resistors:
In practice, it protects the USB input following this scheme:
with a fast common mode choke USB 1.1 and USB 2.0 associated with two TVS diodes for electrostatic discharge deletions.
If it’s difficult for you, go for a HQ Lexia 3 cable:
Good change …Enjoy!!!!!
Attachment: List components reference
Ne emplacement Designation Reference
1,2 ESD suppressors EATON (14-30Vdc) 0603ESDA2-TR2
3 USB Fast common mode choke WURTH 744232090
4,5 Resistor 47Kohm + capacitor 33nF 1206 As you want!
6 Quartz 4,000 MHz X4M000000S013
7,8 Optocouplers HCPL 0500-000E
9,10,11 Optocouplers HCPL 063N-000E
12 Resistor 10kohm 0603 As you want!
13 3 pts connector HIROSE RP34L-5R-3PD(71)
14 22,0 eH choke 1210 ELJFA220JF
15 ESD suppressors EATON 0603ESDA2-TR2
16 CAN common mode choke filter TDK ZJYS51R5-2PT-01
17 Varistor LITTLEFUSE V18ZA40P
18 22 pts Connector HIROSE DF11CZ-22DP-2V(27)
19,20 Zener diode 13V SOD 323 UDZSTE-1713B
21,22,23,24 ESD suppressors EATON 0603ESDA2-TR2
For 1,2 most adapted ESD suppressors : Wurth Ref:82306050029 but not same
design of original interface!
Other reference to Change your interface to make it equivalent to an original:
RAM: SAMSUNG K6X4016C3F-UF55 or BRILLANCE BS616LV4017EIP55
Microprocessor access connector: MINITEK 55510-112TRLF or SAMTEC TLE-106-01-G-DV-K-TR