MSefi.com read only forum (Jan.15,2018)

I have tried few SMD3.57 MS-II Board, and replaced about 5 max232 Chips already.
And tody I have to replace another more, since I found that it is failed in Loopback check again.

I am just wondering if there is any improved chip which could be put for repalcing the MAX232.

Thanks in advance.

I am running 12-1 missing tooth VR with MSII-EXtra on V3.75 SMD board.
Below is the scope image when I turning R52 either CW or CCW, when the R56 is tunned at near 0V tirgger point.
http://lh5.ggpht.com/_fj59iCXyq5A/Sb5riiJoRBI/AAAAAAAAAP4/0ggYNpmkH38/DS0087.jpg
http://lh4.ggpht.com/_fj59iCXyq5A ...

I do have the same issue, because I use the Falling edge trigger (Swaped VR Sensor Wires).
So I have to adjust the R56 Pot clockwise to get trigger at 0V.
But, I am confused the R52 function now, since the adjustment did not show difference in my scope.
I may have to check if my R52 is still good ...

Hi, This could be a stupid question, but I do want to know:
What is the difference between this generator and the Thermistor Talbe generator in the Megatune 2.25?
Currently, I use that thermistor to generate the table, but the readout of the Coolant sensor doesn't reflect the real temperature.
When ...

That is good new for me.
And the next question which will be asked by ISUproject probably is that without the RS232 connection, how can we re-download the firmware with BDM?

I do have the BDM kit just bought few days ago, since I am thinking that I will have to repair those MS-II daughter board by ...

I have exactly same issue now. I use a 12V power supply (110VAC to 12VDC 3A) on JimStim to power on SMD 3.57 board and one V3 board. Before I never notice this problem, since after find the Clock running on realtime display I normally turn the Stim off and continue to assembly.

Initially, I think ...