PDA

View Full Version : MB W168 parktronc pinout two plugs



Matttes
15th September, 2017, 06:45 PM
Hi all,
have please anybody pinout for two plugs for W168īs parktronic unit front/rear system.
Unit number: 023 545 60 32 / Bosch 0 263 004 015

I have maby damaged unti. After ign on only four red led power on and buzzer for few seconds.
Inside is 68HC711E20 Mask 2D43R. I make reflow, but without success. I measure power on the mcu and is only 1.3VDC. This MCU need 5V.
Many thanks for help.
BR Matttes

tru01
16th September, 2017, 10:10 PM
Then you must have component on 5V rail who is drawing current.
Start with checking for heat on components.
Check 5V rail supply. What is it? 7805?

Matttes
18th September, 2017, 12:48 PM
No, 4949ED soic8 and one regulated switched IC TLExxxx in the 5 legs socket. I havenīt this here now.
I try modify pcb and added 7805 and put in to the IC. I mean no heated part.