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Tässä on oikeastaan tiivistettynä koko jutun "Kiinan Immo Clio II ei toiminut !"
Minulla on sellainen yksikkö kuin BMT 4. Tässä kuvat mukana.
Tässä on kytkentäkaavio esim. mihin UCH-yksiköllä menee virtalukon ympärillä oleva antenni.
cliosport.net
Tässä juttu kaverilta, joka väittää huonojen juotosten olevan syynä moneen asiaan:
Hi to everyone
I made a simple tutorial with component identification for UCH N1 / N2 / N3
Its based on my repair experience with this units
Some procedures:
1 - Check for all marqued diodes (cold joints, burned diodes, etc)
these are simple 2A SMD diodes like 1N400x series but rated at 2 amps
2 - Check for solders on the 40 pin black connector (reverse side)
3 - Check marked power supply capacitor as well its diode and 5V regulator IC (TLE4269)
4 - Very important resolder each Array IC ULN2003 ( can be other reference)
5 - Very Very important Resolder MCU / CPU with hot air or a very small iron tip with flux. Remind you this is a dangerous step as pins could solder each other! Use a magnify tool to check and re-check!
6 - Search for other cold joint over the main board
PS - I ve repaired dozens of this units without replace one relay. they apear to be very solid and reliable.
Hope can help someone
If you like and can help you please thanks + rep
Feel free to ask questions. I ll reply based on my experience
Best regards!
Minulla on sellainen yksikkö kuin BMT 4. Tässä kuvat mukana.
Tässä on kytkentäkaavio esim. mihin UCH-yksiköllä menee virtalukon ympärillä oleva antenni.
MK1 172 immobiliser wiring/question
Now, ive got the wiring loom in my hand, and from the decoder ring ive got 3 wires, ones an earth and the other 2 go to 2 different plugs on the UCH, now, does this mean the immobiliser is in the UCH? or it goes through the UCH into the ECU? so i could potentially run the ecu with out the...
Tässä juttu kaverilta, joka väittää huonojen juotosten olevan syynä moneen asiaan:
Hi to everyone
I made a simple tutorial with component identification for UCH N1 / N2 / N3
Its based on my repair experience with this units
Some procedures:
1 - Check for all marqued diodes (cold joints, burned diodes, etc)
these are simple 2A SMD diodes like 1N400x series but rated at 2 amps
2 - Check for solders on the 40 pin black connector (reverse side)
3 - Check marked power supply capacitor as well its diode and 5V regulator IC (TLE4269)
4 - Very important resolder each Array IC ULN2003 ( can be other reference)
5 - Very Very important Resolder MCU / CPU with hot air or a very small iron tip with flux. Remind you this is a dangerous step as pins could solder each other! Use a magnify tool to check and re-check!
6 - Search for other cold joint over the main board
PS - I ve repaired dozens of this units without replace one relay. they apear to be very solid and reliable.
Hope can help someone
If you like and can help you please thanks + rep
Feel free to ask questions. I ll reply based on my experience
Best regards!