VCI

[LeL]

Yup I saw it, thks. the picture is a bit small, I can't expand it. I just want to be sure I dun solder a 10K resistor onto the wrong pin.

[Klooid]

Thanks for all the replies on this post, as, I believe that I have a missing 10k resistor based on GivemeABreak's comments / photo.

[Klooid]

I have now had a good look at my Lexia PCB, and it is clear that I have a missing 10k resistor within the Yellow circle. However, on closer inspection especially within the Purple circle of the PCB it appears that my 'smd' is soldered in the middle of the 3 pads, whereas looking at other photos on this and other forums it is soldered on the top pad.

Therefore, what is your thoughts, should I move it to the top pad, or it makes no difference if it stays as is? Thanks.

[GiveMeABreak]

That was always there - even on the clones with missing hardware, indicated by C30 on boards that have IDs for the components. This board will likely be missing most of the other hardware too so id definitely not a full chip board.

[silenceinmyeyes]

Ok, that's fine Gibbo - 10k resistor present - if this was missing it causes communication issues - especially on CAN systems.

Hello,

can you tell please which SMD Resistor 10k Ohm type is exactly, as there is ton of them 10k, is it 603, 103 or whatever, as i'm not well with this type electronics, called my local electronics service, and service-guy asked me which 10k Ohm SMD resistore model as more them, and different one different make lower voltage etc. ?

On some pictures guys who replaced 10k SMD resistor is dfificult to see is there written 103 or 010 on itself's smd resistor, as its too small and not well resolutions-quality pictures posted.

Thanks!

[Paul-R]

Seems strange that the service-guy asked what type. Yes, there are different types for different voltages and power dissipating properties but it should have been obvious that this is a low voltage, low power situation.

10k is 10,000 and 103 is an alternative way of writing this in a very small space where there is no room for the traditional colour codes. The first two numbers are, err, the first two numbers and the third number is the number of zeroes after them. So ten plus three zeroes is ten thousand, 10,000 or 10k. Similarly 603 (not sure if this actually exists) would be 60k.

Incidentally there's absolutely no reason why you can't solder a traditional leaded resistor in there. They are more expensive to buy but much easier to solder in.

[silenceinmyeyes]

Frankly speaking i'm not well with these small electronics, as work in IT area .... Yes, think he asked me that on phone call about type resistor, and i told him think it's written on resistor 103 label. And this service electronics not much deal with OBD interfaces, maybe that's why asked me, as he told there is more types 10k and different influent on power.

I see at some posts mostly people say 10k 1/10w, but at CT forum saw some wrote 10k 1/4W, that's why i asked here, and someone smart like you in electronics and other members to get info what to do, that not make mistake .

Ah got you, that can be soldered that older type with different colors resistor , maybe most of people used to solder SMD type resistor, as most of resistord on board sdm , agree with you, i remember those old with thinny wire on both side, saw some people soldered such.

Big tnx for info and clear explanation! Will do as you told, use 103 smd 10k ohm, 1/10w .

[xantia_v6]

0603 is one of the common designations of physical size. See https://www.allpcb.com/blog/pcb-assembl ... tions.html which should clarify things a little.

[silenceinmyeyes]

Yes 0603 is physical size, meantime following Paul-r's info, my local service for electronics did soldering for my "full chip" clone from aliex, which sellers usual declare as full chip ABCD, but in practice many times missing this resistor 10k, so local electronics service soldered SMD type resistor 10k with label 103 on top of resistor.

After soldering, checked Lexia obd with Diagbox 9.129 all ok, all working, ago some modules couldn't see in my Picasso 1.6 Bluehdi 2016, like ECU, Airbags, now all modules visible, and looks like faster scan and work with Diagbox.

Once big tnx to Paul, Xantia and all members with useful info, like "Givemeabreak" etc. , this forum is really great help for PSA cars !