2016年11月22日星期二

Renault CAN CLiP no vcc 3.3v to AN2135SC (customer solution)

In the Renault CAN CLIP inner board, I found no vcc 3.3v to AN2135SC fromvoltage regulator. Actually there is no +5v IN from usb port to voltage regulator . Need +5v on both pins (1 and 3)

On red arrow no +5V on image,normally no 3v3 to blue arrow,but on green there is +5v
Also from back side near usb connis also same vol.reg and its have all voltages ok
Here are some Renault clip users’ solution. I adopted it... Worked!

it is possible solder a wire from +5v to IN pin, but also need to OFF\ON pin to enable output voltage 3.3v. But in that case both red diodes are ON even no connected obd conn to car. Also tried to "take" 3.3v from other clip pcb and then find sonde when start clip sq, only ask for firmware update so will try lower version sw. Now use v96

Then I sill bring +5v to both IN and ON/OFF and will get 3v3 only both red leds will be on
Another user also had a problem with the 3.3V regulator , and he used a normal 3.3v regulator without ON/OFF and it worked correctly , except that the 2 red leds always on.

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