Lexia PP2000 repair

[KNS1]

please help solve the problem!Board with jumpers instead of optocouplers,optocoupler if soldering the relay stop clicking.the power to the pic,the relay is the interface normal is determined. what to check?understand that the optocoupler doesn't come?

[KNS1]

tell me please on the reverse side of the Board with fujitsu part all tranzistor 2n7002?

[kelekele]

For all DK members solution for repair lexia when no communication with CAN vehicles(only K-line works).
In some relay boards missing 5 smd capacitors.
Capacitance is :
1- 0,020 nF
2- 0,048 nF
3- 0,020 nF
4- 0,048 nF
5- 0,060 nF

Lexia_noCan_repair.jpg

[titoun]

For all DK members solution for repair lexia when no communication with CAN vehicles(only K-line works).
In some relay boards missing 5 smd capacitors.
Capacitance is :
1- 0,020 nF
2- 0,048 nF
3- 0,020 nF
4- 0,048 nF
5- 0,060 nF

Lexia_noCan_repair.jpg

Hi kelekele,

If I may:Chinese integrate capacitors (or nothing on low cost interface) to the locations that you mentioned but it is not these components are mounted on the original interfaces.
These are TVS diodes suppressors (for protection lines), look my thread here:

http://www.digital-kaos.co.uk/forums...to-an-original!

But thank you for measure capacitors which many still wonder what value they are!

Regards.

[kelekele]

This components on my photo is capacitors.I remove them from original lexia relay pcb.Without this capacitors not working CAN connection on clone interface .When i remove(and measure) them from original and put them to clone pcb,CAN start working without problems.This is tested sollution and works.

[titoun]

Yes, on your picture but it's a chinese clone PCB.
On this picture : Original interface XS EVO relay PCB (B revision PCB), we can see in location 1,2,3 and 5 same as your picture, there is no capacitors...But "Blue/green" components.

ppi4-261a4e0.jpg

In location 4, it's a capacitor. OK

Are you sure you have removed them from an original PCB?

Regards

[morfej]

titoun is right ... not all are capactiros on geniue interface ... or there are different versions of geniue one ... I don't exclude that option

[kelekele]

I removed capacitors from this type of board.
20160219_174950.jpg20160219_174828.jpg

[kelekele]

titoun is right ... not all are capactiros on geniue interface ... or there are different versions of geniue one ... I don't exclude that option

This your original lexia board is different,not same like Titouns...

[titoun]

I removed capacitors from this type of board.
20160219_174950.jpg20160219_174828.jpg

Hi kelekele,

Sorry but it's not an original XS EVOLUTION interface. For several reasons: comparison with this original

ppi2-261a4bb.jpg
ppi6-261a509.jpg

some differences circled in red :

20160219_174828.jpg

On Microprocessor PCB:
- No TVS suppressor for ESD on each lines of USB 5+/-), chinese replace by capacitors
- No COMMON Mode choke for reduce noise on USB lines, chinese replace by two 0 ohm resistors
- No connector to access microprocessor MB90F546GS for Reflash, chinese replace by none... etc

On Relay PCB:
- Bad white 22 pts connector without holding lugs to be welded on each side
- I suppose (no good photo) bad reference of varistor, good is littlefuse(red) ref P18Z40 marking code
- No TVS suppressor at side of PIC 16F684
- FT relays of Fujitsu mounted by chinese, on original mainly OMRON relays... etc

This your original lexia board is different,not same like Titouns...

Yes, on photo post by morfej,it's PCB revision C of an original XS EVOLUTION interface. But differencies with PCB revision B are minor: resistance 500 ohm (501 marking code) is divided into two resistors of1 Kohm (102 marking code) for a breakdown voltage protection, the two diodes mounted on the two resistors 100kohms (104 marking code) are now on the other side of the PCB ... etc. But since No changes impacting functionality.

Regards

[morfej]

Titoun is right, kelekele lexia is not geniue.

kelekele lexia I think is a bit of reworked clone or pehaps a very early version of clone.

I am attaching a picture of usb common choke on geniue lexia.

Br

[dunkler]

Hi
I've just bought a lexia interface and when I plug in windows says "Unknown USB Device". In device managers appears as VID_0000%PID_0000. Tried another USB cable, changed D-SUB port, reflashed both MCU and SPI still nothing.I've checked power supply on MCU,SPI USBN all good. Could be a bad RAM?

Thanks

[Music73]

Have you installed the diag box driver.. I had same problem but once installed the drivers picked up straight away.. Found it better to install while interface was plugged in..


Sent from my iPhone using Tapatalk

[dunkler]

Sure, when I plug the LED flashed three times and then windows says USB Device not recognized. If I select properties it says "Windows has stopped this device because it has reported problems (Code 43)"

LE: Changed with an old laptop and USB works now, but won't connect to any ECU, also no relay "ticking" in VCI
Any suggestion? Could be FW or a HW problem? Thanks

[titoun]

Hi,

How is your interface recognized in the device manager? With driver: USB com board driver or USB com board Evolution driver?
You use what diagbox software or lexia3 Vxx (alone) or PP2000 Vxx (alone) ?
If your interface is flashed correctly, so may be an hardware problem, post photos of PCB pls !
Regards