| Problem solved. (At Mx9xx. But i think at other models not big difference)
Battery Pin-out:
1- +Vbatt
2- -Vbatt (Gnd)
3- Indicator battery type
4- At board must be closed to GND
Beetwen pin 3 and 4 at battery set resistor. Resistance - battery type . I have two type - 7k5 and 13k. At board set capasitor.
Pin 3 through fuse or resistor (0 ohm) (white or black smd near pin 3 ) go to the 21 pin interface IC (18599662-5). The resistence beetwen pin 3 and GND on board must been 150 - 2500 ohm.
Chek all this values. And good luck.
P.S. At my board resistence beetwen pin 3 and GND go to Mohms. And after change interface IC all problems solved. |