MB STAR HARDWARE??

[labusas]

Hi, anyone can help determine if the missing diode (circled in red) is the cause of "no connection to car and good self test)?

I do have +12V on the left diode, +5V middle (red) and +12V on the big right one. Just as in the picture from another user instructed.

[DB_member]

Hi, anyone can help determine if the missing diode (circled in red) is the cause of "no connection to car and good self test)?

I do have +12V on the left diode, +5V middle (red) and +12V on the big right one. Just as in the picture from another user instructed.

I don't have that Chinese mux but the diode is missing from other similar tools according to the photos I have. So your issue is most likely something else (I understand also that the mux was working previously and the diode has not just dropped off).

[diagnoza_auto2000]

its working without that diode too,even without both of them.
They are only for for k line overvoltage protection.

[diagnoza_auto2000]

If self test its going well,always test k line signal on the 2x BCP56 transistors ,and check all resistors 10 Ohm and 100 Ohm,they are poor quality resistors and you don t see them burned ,but the value its not good when you measure with ohmeter.
K line signal must be measured on Colecter + and ground.
On both of them you must get 12 v,on cars and 24 on trucks.

If you have k line signal there,maiby you have a problem with your board relays ,at many chinese low quality mux you will find burned routes.

Only C3 have 3 layers boards,C4 have only 2.

[labusas]

Thanks Diagnoza, I just got this unit. I don't if it's likely that something is burned in it, is it?
Maybe it's a clone that requires a certain cal.ini setting for instance? I'll check your recommended voltages though.

I have four transistors. Only one TIP42C has 13V on collector (middle) to ground (heat sink), others L7808CV are 0V on collector

[beglarm]

I'm also going to by mux but I face a dilemma about which mux to buy: c3 of sd connect.

C3 has already tested and as others experience shows it is reliable(well, more reliable than Its successor sd connect). Also, It's ease to repair when is has broken or blocked.
But, as Patrian said:
EVEN and with ORIGINAL Multiplexer CONNECTED in any Laptop you CAN'T to use Xentry for W204, W207, W212, W197!!!!! .
It means that you can not use c3 for w204(lunched in 2007), w207(thnk 2009), W212(2009), an btw, which is this w197?

so, is that mean c3 going to absolute and Daimler gives green light to sd connect?

As some says, if sd connect get blocks it has to be unlocked on hardware level which is expensive and there is no software solution.

So, please tell your opinion. which way to go

thanks

[DB_member]

I'm also going to by mux but I face a dilemma about which mux to buy: c3 of sd connect.

C3 has already tested and as others experience shows it is reliable(well, more reliable than Its successor sd connect). Also, It's ease to repair when is has broken or blocked.
But, as Patrian said:
EVEN and with ORIGINAL Multiplexer CONNECTED in any Laptop you CAN'T to use Xentry for W204, W207, W212, W197!!!!! .
It means that you can not use c3 for w204(lunched in 2007), w207(thnk 2009), W212(2009), an btw, which is this w197?

so, is that mean c3 going to absolute and Daimler gives green light to sd connect?

As some says, if sd connect get blocks it has to be unlocked on hardware level which is expensive and there is no software solution.

So, please tell your opinion. which way to go

thanks

Patrian who said what? At least I did not find any message from Patrian from this thread, you should be more specific when referring to his posts.

Are you claiming above that a W212 cannot be diagnosed with an original C3 (Part D) mux (if connected to a laptop)? Tell me what is wrong with my C3 mux then because I have no problems running diagnosis for a W212 or W204 through Xentry?

The 197 is the SLS AMG.

[PremierD]

Who is Patrian anyway .!!!!!!!!!!! did'nt he not Defect ...so no need to quote him ..

[beglarm]

Patrian who said what? At least I did not find any message from Patrian from this thread, you should be more specific when referring to his posts.

Are you claiming above that a W212 cannot be diagnosed with an original C3 (Part D) mux (if connected to a laptop)? Tell me what is wrong with my C3 mux then because I have no problems running diagnosis for a W212 or W204 through Xentry?

The 197 is the SLS AMG.

DB_member, I was more than specific, I gave you exact link to Patrian's post link. And I will give another link: Diagnosing W204, W212 & 166
I am quoting others messages because as a newbie, I am trying to collect others posts in one place and draw one picture. This time it was his post. next time maybe yours - I don't care. So, I'm not a big fun of Patrian's posts and his personality either.

DB_member, I think this message "Are you claiming above that a W212 cannot be diagnosed with an original C3 (Part D) mux (if connected to a laptop)? Tell me what is wrong with my C3 mux then because I have no problems running diagnosis for a W212 or W204 through Xentry?" addresses to Patrian.

ok, as you said DB_member, It does not meter whether it is c3 or c4. that is good news because I don't care If mux don't have a screan and wifi. For c4 price I would buy very good quality c3.

Today I received some photos from seller from autokmfactory but resolution is low, you cannot see soldering quality. first he sent very small picture. I complaned. Then real picture but it was taken in 2010. I complaned and he told me that he will send real pics on Monday and today is Monday BUT, again, he sent me re-sized pict.
anyway, here it is what it is.

[MasTak]

This is not the worst of the variations. Some of the Chinese clones have the cable between the printed circuit board connectors

[beglarm]

This is not the worst of the variations. Some of the Chinese clones have the cable between the printed circuit board connectors

actually, cables are good because in it goes high voltage and that is bad for PCB.
look at this photo below

[whiskymk]

actually, cables are good because in it goes high voltage and that is bad for PCB.
look at this photo below

"HIGH VOLTAGE" ??? where?
all mux need only 250mA

[MasTak]

I've had both, and have twice been a problem with these wires. connector is more robust

[DB_member]

"HIGH VOLTAGE" ??? where?
all mux need only 250mA

I understand beklarm was referring to different cables from what beklarm was referring, if I interpreted both right.

Anyway, the cables between the two round connectors are good for a genuine tablet, if anyone is using a clone with that tablet. These cables feed high current (I believe beklarm mentioned high voltage but meant high current), the tablet charges batteries from the car, via the mux and also powers itself.

The mux MasTak was showing is based on the Chinese crap C4 (flat box) circuit boards and is generally considered crap too. 99.9% of broken multiplexers are these (or some variants of this design).

Interesting that MasTak has had more than once problems with the flexible cable. I would like to see photos of the damages. One problem with those is that the C3 case may cut the insulation when the circuit board is pushed into the case. This design anyway is a 99.9% copy of a genuine C3 mux, assuming equal quality parts are used.

[beglarm]

I'm sorry, my mistake - current and not voltage.

In a regular passenger cars current is 50-70A and it should be considers high for traces, which has small cross section area - current-carrying capability, on mux's PCB. And if this charging current faces big resistance/close circuit on charged-side(PC) AND if there is no/strong fuse in a car then trace on the PCB acts like a fuse; trace wont take that load and ...


now I have one question - If 12v goes from mux to notebook where it gets raised to 18-19v?