XPROG-M problem

[andrym3]

Hi guys, I have a problem with my xprog-M (hardware voltage too low ), when i read mcu or eeprom.I used RS232 cable and external power supply 12V

[diagnoza_auto2000]

Hi guys, I have a problem with my xprog-M (hardware voltage too low ), when i read mcu or eeprom.I used RS232 cable and external power supply 12V

Change you external power with another ,use bether 15 V

[andrym3]

Thanks,but it's the same problem

[Holtek]

Replace the capacitor marked in the picture.

[roth18]

There is a thread about XprogM clone, it looks like the green board clones are better than the blue ones. Also, there were some repair procedures to repair the blue board XprogM clone.

Use search.

[andrym3]

See in the picture the test result .Thanks

[Holtek]

Is yellow tantalum are not broken? Have you changed the capacitor? Voltage on the first pin IRF7316 is too low. It should be about 17V. Check the voltage on the B0505, as I mark it on the photo.

[andrym3]

Thank you for your help, I think the problem is from the DC/DC converter regulator B0505, there are only -3V at output ,pin4 compared to ground is 2,3 V instead of 17V.

B0505 voltage recommended
Pin 1 & 2 = 5v input
Pin 3 & 4 = 5V output

[Holtek]

Maybe the DC/DC converter is overloaded. Load of the DC/DC converter is the first pin of the IRF7316. Lift it and see if the voltage is changed. If the DC/DC converter still does not work properly it needs to be replaced.

[cipijoint]

i have this problem too, with or without the power supply conected.
I tried other xprog, not get this error, desnt matter if i have or not power supply .
So, problem its not from the 12v supply .

[Valdemar79]

Hallo. I solved this poroblem. Connected this pin to GND
1.jpg

[usefi5961]

I need software for xprog-m ver 5.0 and solution repairing my xprog when update deaded and not working only when connect to pc and command to software white led lit .and other 2 led(green and red)not lit.
Thanks.